Verifieer head-end replicatie in SD-Access Fabric

Opmerking: Opdrachten voor het platform (fed) kunnen variëren. De opdracht kan zijn "show platform fed <active|standby>" versus "show platform fed switch <active|standby>". Als de syntaxis die in de voorbeelden is genoteerd, niet wordt geparseerd, probeer dan de variant.

Topologie

Netwerktopologie

In deze topologie:

• 10.47.10 en 10.47.1.11 zijn op elkaar geplaatste randen die ook als Anycast Rendezvous Point (RP) functioneren met Multicast Source Discovery Protocol (MSDP) tussen de twee in het Virtual Network (VN)/VRF.
• 10.47.1.12 en 10.47.1.13 zijn Fabric Edge-knooppunten
• 10.47.7.2 is de multicastbron
• 10.47.7.3 is de multicast-ontvanger
• 239.1.1.1 is het multicast doeladres van de groep (GDA)

Configuratie

Er wordt aangenomen dat Cisco Catalyst Center wordt gebruikt om de SDA-stof te voorzien van de standaardinstellingen:

• Implementatie van replicatie is head-end replicatie
• Anycast RP met MSDP voor een Any Source Multicast (ASM)-multicast op de gecodeerde randen

Na een succesvolle configuratie vanuit Catalyst Center bevat de relevante configuratie per apparaat verschillende secties:

Configuratie van Fabric Edge (10.47.1.12)

ip multicast-routing vrf blue_vn 
ip multicast vrf blue_vn multipath
!
interface LISP0.4100
vrf forwarding blue_vn
ip pim sparse-mode
end
!
interface Loopback4100
vrf forwarding blue_vn
ip address 10.47.6.4 255.255.255.255
ip pim sparse-mode
end
!
ip pim vrf blue_vn register-source Loopback4100
ip pim vrf blue_vn rp-address 10.47.6.1 ASM_ACL_IPV4_blue_vn_10.47.6.1
!
interface Vlan1025
description Configured from Cisco DNA-Center
mac-address 0000.0c9f.fb87
vrf forwarding blue_vn
ip address 10.47.7.1 255.255.255.0
ip helper-address 10.47.9.9
no ip redirects
ip pim passive
ip route-cache same-interface
ip igmp version 3
ip igmp explicit-tracking
no lisp mobility liveness test
lisp mobility blue-IPV4
end
!
ip access-list standard ASM_ACL_IPV4_blue_vn_10.47.6.1
10 permit 239.0.0.0 0.255.255.255

Configuratie van Fabric Edge (10.47.1.13)

ip multicast-routing vrf blue_vn 
ip multicast vrf blue_vn multipath
!
interface LISP0.4100
vrf forwarding blue_vn
ip pim sparse-mode
end
!
interface Loopback4100
vrf forwarding blue_vn
ip address 10.47.6.4 255.255.255.255
ip pim sparse-mode
end
!
ip pim vrf blue_vn register-source Loopback4100
ip pim vrf blue_vn rp-address 10.47.6.1 ASM_ACL_IPV4_blue_vn_10.47.6.1
!
interface Vlan1025
description Configured from Cisco DNA-Center
mac-address 0000.0c9f.fb87
vrf forwarding blue_vn
ip address 10.47.7.1 255.255.255.0
ip helper-address 10.47.9.9
no ip redirects
ip pim passive
ip route-cache same-interface
ip igmp version 3
ip igmp explicit-tracking
no lisp mobility liveness test
lisp mobility blue-IPV4
end
!
ip access-list standard ASM_ACL_IPV4_blue_vn_10.47.6.1
10 permit 239.0.0.0 0.255.255.255

Configuratie Rand/Anycast RP (10.47.1.10) op locatie

router bgp 69420
address-family ipv4 vrf blue_vn
aggregate-address 10.47.6.0 255.255.255.0 summary-only
!
router lisp
site site_uci
eid-record instance-id 4100 10.47.6.0/24 accept-more-specifics
!
ip multicast-routing vrf blue_vn
ip multicast vrf blue_vn multipath
!
interface LISP0.4100
vrf forwarding blue_vn
ip pim sparse-mode
end
!
interface Loopback4100
vrf forwarding blue_vn
ip address 10.47.6.1 255.255.255.255
ip pim sparse-mode
end
!
interface Loopback4600
vrf forwarding blue_vn
ip address 10.47.6.6 255.255.255.255
ip pim sparse-mode
end
!
ip pim vrf blue_vn rp-address 10.47.6.1 ASM_ACL_IPV4_blue_vn_10.47.6.1
ip pim vrf blue_vn register-source Loopback4100
!
ip access-list standard ASM_ACL_IPV4_blue_vn_10.47.6.1
10 permit 239.0.0.0 0.255.255.255
!
ip msdp vrf blue_vn peer 10.47.6.7 connect-source Loopback4600
ip msdp vrf blue_vn cache-sa-state
ip msdp vrf blue_vn originator-id Loopback4600

Configuratie Rand/Anycast RP (10.47.1.11) op locatie

router bgp 69420
address-family ipv4 vrf blue_vn
aggregate-address 10.47.6.0 255.255.255.0 summary-only
!
router lisp
site site_uci
eid-record instance-id 4100 10.47.6.0/24 accept-more-specifics
!
ip multicast-routing vrf blue_vn
ip multicast vrf blue_vn multipath
!
interface LISP0.4100
vrf forwarding blue_vn
ip pim sparse-mode
end
!
interface Loopback4100
vrf forwarding blue_vn
ip address 10.47.6.1 255.255.255.255
ip pim sparse-mode
end
!
interface Loopback4600
vrf forwarding blue_vn
ip address 10.47.6.7 255.255.255.255
ip pim sparse-mode
end
!
ip pim vrf blue_vn rp-address 10.47.6.1 ASM_ACL_IPV4__blue_vn_10.47.6.1
ip pim vrf blue_vn register-source Loopback4100
!
ip access-list standard ASM_ACL_IPV4_blue_vn_10.47.6.1
10 permit 239.0.0.0 0.255.255.255
!
ip msdp vrf blue_vn peer 10.47.6.6 connect-source Loopback4600
ip msdp vrf blue_vn cache-sa-state
ip msdp vrf blue_vn originator-id Loopback4600

Verificatie van besturingsplane

Controleer vervolgens het Internet Group Membership Protocol (IGMP) en PIM.

Multicast-ontvanger verzendt IGMP-lidmaatschapsrapport

De multicastontvanger (10.47.7.3) stuurt een IGMP-lidmaatschapsrapport (MR) of IGMP-verbinding om aan te geven dat er belangstelling is voor het ontvangen van multicastverkeer. U kunt een ingesloten pakketopname (EPC) configureren om te bevestigen dat er een IGMP MR ontvangen is:

Edge-2#monitor capture 1 interface GigabitEthernet1/0/5 IN
Edge-2#monitor capture 1 match any
Edge-2#monitor capture 1 buffer size 10
Edge-2#monitor capture 1 start
Edge-2#monitor capture 1 stop

Edge-1#show monitor capture 1 buff display-filter igmp brief
Starting the packet display ........ Press Ctrl + Shift + 6 to exi
145 63.730527 10.47.7.4 -> 239.1.1.1 IGMPv2 60 Membership Report group 239.1.1.1

Zorg er vervolgens voor dat de Fabric Edge de PIM Designated Router (DR) voor het VLAN is waarin de multicast-ontvanger zich bevindt. Dit wordt ook de Last Hop Router (LHR) genoemd. U kunt de opdracht "toon ip pim vrf <VN Name> interface VLAN <vlan> detail gebruiken | PIM DR."

Edge-2#show ip pim vrf blue_vn interface vlan 1025 detail | i PIM DR
PIM DR: 10.47.7.1 (this system)

Controleer of IGMP Snooping de IGMP MR heeft opgepikt met de opdracht "toon ip igmp vrf <VN Name> snooping group"

Edge-1#show ip igmp vrf blue_vn snooping groups 
Vlan Group           Type Version Port List
-----------------------------------------------------------------------
1025 239.255.255.254 igmp v2      Gi1/0/5

Creatie van gedeelde boomstructuur in PIM Sparse-Mode

Edge-2, de DR op dat segment stuurt een (*,G) PIM Join naar de Anycast RP. Als het Anycast RP-adres niet wordt opgelost in de LISP Map-Cache, is het LISP EID Watch-proces verantwoordelijk voor het activeren van LISP Map-Verzoeken. U kunt de opdracht "show lisp instance-id <LISP L3 ID> ipv4/ipv6 e-watch" gebruiken | OPSTARTEN VAN LOC"

Edge-2#show lisp instance-id 4100 ipv4 eid-watch | begin RLOC
LISP IPv4 EID Watches for Table (RLOC mapping in vrf blue_vn IPv4) IID (4100), 1 watch entries
Watch entries for prefix 10.47.6.1/32
10.47.6.1, multicast

Edge-2#show lisp instance-id 4100 ipv4 map-cache 10.47.6.1
LISP IPv4 Mapping Cache for LISP 0 EID-table vrf blue_vn (IID 4100), 1 entries
10.47.6.1/32, uptime: 9w1d, expires: 20:19:57, via map-reply, complete
Sources: map-reply
State: complete, last modified: 9w1d, map-source: 10.47.1.10
Active, Packets out: 577721(21849998 bytes), counters are not accurate (~ 00:00:12 ago)
Locator Uptime State Pri/Wgt Encap-IID
10.47.1.10 9w1d up 10/10 -
Last up-down state change: 1w1d, state change count: 3
Last route reachability change: 9w1d, state change count: 1
Last priority / weight change: never/never
RLOC-probing loc-status algorithm:
Last RLOC-probe sent: 1w1d (rtt 272ms)
10.47.1.11 9w1d up 10/10 -
Last up-down state change: 9w1d, state change count: 1
Last route reachability change: 9w1d, state change count: 1
Last priority / weight change: never/never
RLOC-probing loc-status algorithm:
Last RLOC-probe sent: 1w1d (rtt 602ms)

Edge-2#show ip rpf vrf blue_vn 10.47.6.1
RPF information for (10.47.6.1)
RPF interface: LISP0.4100
RPF neighbor: ? (10.47.1.10)
RPF route/mask: 10.47.6.1/32
RPF type: unicast ()
Doing distance-preferred lookups across tables
Multicast Multipath enabled.
RPF topology: ipv4 multicast base

Valideer de (*,G) vermelding op Edge-2 met de opdracht "toon ip mroute vrf <VN-naam> <multicast group>"

Edge-2#show ip mroute vrf blue_vn 239.1.1.1
IP Multicast Routing Table
Flags: D - Dense, S - Sparse, B - Bidir Group, s - SSM Group, C - Connected,
L - Local, P - Pruned, R - RP-bit set, F - Register flag,
T - SPT-bit set, J - Join SPT, M - MSDP created entry, E - Extranet,
X - Proxy Join Timer Running, A - Candidate for MSDP Advertisement,
U - URD, I - Received Source Specific Host Report, 
Z - Multicast Tunnel, z - MDT-data group sender, 
Y - Joined MDT-data group, y - Sending to MDT-data group, 
G - Received BGP C-Mroute, g - Sent BGP C-Mroute, 
N - Received BGP Shared-Tree Prune, n - BGP C-Mroute suppressed, 
Q - Received BGP S-A Route, q - Sent BGP S-A Route, 
V - RD & Vector, v - Vector, p - PIM Joins on route, 
x - VxLAN group, c - PFP-SA cache created entry, 
* - determined by Assert, # - iif-starg configured on rpf intf, 
e - encap-helper tunnel flag, l - LISP decap ref count contributor
Outgoing interface flags: H - Hardware switched, A - Assert winner, p - PIM Join
t - LISP transit group
Timers: Uptime/Expires
Interface state: Interface, Next-Hop or VCD, State/Mode
(*, 239.1.1.1), 4d05h/00:02:12, RP 10.47.6.1, flags: SC <-- Anycast RP IP address 10.47.6.1
Incoming interface: LISP0.4100, RPF nbr 10.47.1.10 <-- Reverse Path Forwarding (RPF) neighbor to get to the Anycast RP IP 
Outgoing interface list:
Vlan1025, Forward/Sparse-Dense, 4d05h/00:02:12, flags: <-- Outgoing interface list (OIL) is populated via PIM Join or IGMP Membership Report

PIM-buren in de overlay

Zodra de RPF-buur die wordt weergegeven door zijn Routing Locator (RLOC) en bereikbaar is via de LISP-interface, wordt deze toegevoegd als een PIM-buur in de VRF/VN.

Enkele zaken om bewust te zijn van:

• RPF-controle, die wordt gebruikt om de PIM (*,G) te verzenden, activeert de aanmaak van de PIM-buur met een verlooptimer van twee minuten. Als er 2 minuten lang geen PIM Join-berichten worden verstuurd, wordt de buurtijd uitgezonden.
• PIM moet expliciet een buurstructuur maken voor de corresponderende RLOC, aangezien PIM Hello-berichten niet worden verzonden in de SDA Overlay  

Edge-2#show ip pim vrf blue_vn neighbor 
PIM Neighbor Table
Mode: B - Bidir Capable, DR - Designated Router, N - Default DR Priority,
P - Proxy Capable, S - State Refresh Capable, G - GenID Capable,
L - DR Load-balancing Capable
Neighbor    Interface Uptime/Expires Ver DR
Address                                  Prio/Mode
10.47.1.10 LISP0.4100 4d23h/00:01:37 v2  0 /

Anycast RP creëert (*,G)

Gebaseerd op de PIM (*,G) Join ontvangen van Edge-2, maakt Border-1 (*,G) met de OIL naar Edge-2's RLOC

Border-1#show ip mroute vrf blue_vn 239.1.1.1
IP Multicast Routing Table
Flags: D - Dense, S - Sparse, B - Bidir Group, s - SSM Group, C - Connected,
L - Local, P - Pruned, R - RP-bit set, F - Register flag,
T - SPT-bit set, J - Join SPT, M - MSDP created entry, E - Extranet,
X - Proxy Join Timer Running, A - Candidate for MSDP Advertisement,
U - URD, I - Received Source Specific Host Report, 
Z - Multicast Tunnel, z - MDT-data group sender, 
Y - Joined MDT-data group, y - Sending to MDT-data group, 
G - Received BGP C-Mroute, g - Sent BGP C-Mroute, 
N - Received BGP Shared-Tree Prune, n - BGP C-Mroute suppressed, 
Q - Received BGP S-A Route, q - Sent BGP S-A Route, 
V - RD & Vector, v - Vector, p - PIM Joins on route, 
x - VxLAN group, c - PFP-SA cache created entry, 
* - determined by Assert, # - iif-starg configured on rpf intf, 
e - encap-helper tunnel flag, l - LISP decap ref count contributor
Outgoing interface flags: H - Hardware switched, A - Assert winner, p - PIM Join
t - LISP transit group
Timers: Uptime/Expires
Interface state: Interface, Next-Hop or VCD, State/Mode
(*, 239.1.1.1), 4d23h/00:02:48, RP 10.47.6.1, flags: S
Incoming interface: Null, RPF nbr 0.0.0.0
Outgoing interface list:
LISP0.4100, 10.47.1.13, Forward/Sparse, 4d23h/00:02:33, flags: <-- RLOC of Edge-2

Multicastbronregistratie

Multicastbron 10.47.7.2 verzendt multicast verkeer, dat Edge-1 inschakelt. Edge-1 prikt het pakket naar de CPU om de status (S,G) te maken en Edge-1 registreert de bron naar de Anycast RP.

Edge-1#monitor capture 1 interface GigabitEthernet1/0/4 IN
Edge-1#monitor capture 1 match any
Edge-1#monitor capture 1 buffer size 10
Edge-1#monitor capture 1 start
Edge-1#monitor capture 1 stop

Edge-1#show monitor capture 1 buffer brief
Starting the packet display ........ Press Ctrl + Shift + 6 to exit
1 0.000000 10.47.7.2 -> 239.1.1.1 ICMP 98 Echo (ping) request id=0x0007, seq=107/27392, ttl=5
2 0.355071 10.47.7.3 -> 239.1.1.1 ICMP 98 Echo (ping) request id=0x0007, seq=107/27392, ttl=5
3 1.096757 10.47.7.3 -> 239.1.1.1 ICMP 98 Echo (ping) request id=0x0007, seq=108/27648, ttl=5
4 1.102425 10.47.7.3 -> 239.1.1.1 ICMP 98 Echo (ping) request id=0x0007, seq=108/27648, ttl=5

Zodra grens-1 het multicast pakket via PIM-registratie ontvangt, heeft grens-1 (S, G) en adverteert dit aan grens-2 via MSDP

Border-1#show ip mroute vrf blue_vn 239.1.1.1 10.47.7.2
IP Multicast Routing Table
Flags: D - Dense, S - Sparse, B - Bidir Group, s - SSM Group, C - Connected,
L - Local, P - Pruned, R - RP-bit set, F - Register flag,
T - SPT-bit set, J - Join SPT, M - MSDP created entry, E - Extranet,
X - Proxy Join Timer Running, A - Candidate for MSDP Advertisement,
U - URD, I - Received Source Specific Host Report, 
Z - Multicast Tunnel, z - MDT-data group sender, 
Y - Joined MDT-data group, y - Sending to MDT-data group, 
G - Received BGP C-Mroute, g - Sent BGP C-Mroute, 
N - Received BGP Shared-Tree Prune, n - BGP C-Mroute suppressed, 
Q - Received BGP S-A Route, q - Sent BGP S-A Route, 
V - RD & Vector, v - Vector, p - PIM Joins on route, 
x - VxLAN group, c - PFP-SA cache created entry, 
* - determined by Assert, # - iif-starg configured on rpf intf, 
e - encap-helper tunnel flag, l - LISP decap ref count contributor
Outgoing interface flags: H - Hardware switched, A - Assert winner, p - PIM Join
t - LISP transit group
Timers: Uptime/Expires
Interface state: Interface, Next-Hop or VCD, State/Mode
(10.47.7.2, 239.1.1.1), 00:02:26/00:00:34, flags: TA <-- A flag indicates that this is a candidate for MSDP advertisement
Incoming interface: LISP0.4100, RPF nbr 10.47.1.12
Outgoing interface list:
LISP0.4100, 10.47.1.13, Forward/Sparse, 00:02:26/00:02:36, flags:

MSDP-bronadvertenties 

Gebruik de opdracht "toon ip msdp vrf <VN name> sa-cache" om de Source Active Cache te bekijken. U kunt de opdracht "toon ip msdp vrf <VN name> samenvatting" gebruiken om de MSDP peer te zien

Border-1#show ip msdp vrf blue_vn sa-cache 
MSDP Source-Active Cache - 1 entries
(10.47.7.2, 239.1.1.1), RP 10.47.6.7, BGP/AS 23456, 00:00:34/00:05:25, Peer 10.47.6.7

Border-1#show ip msdp vrf blue_vn summary 
MSDP Peer Status Summary
Peer Address AS    State Uptime/  Reset SA   Peer Name
                         Downtime Count Count
10.47.6.7    23456 Up    1w1d     0     1 

Border-2 ontvangt (S,G) informatie van Border-1 via MSDP-aankondiging. Als Border-2 een PIM (*,G) heeft ontvangen van Edge-2, maakt Border-2 een (S,G)-ingang en erft de LISP OIL van de (*,G) die naar Edge-2’s RLOC wijst. De vuistregel is dat MSDP SA-vermeldingen alleen in de multicast Routing Information Base (MRIB) worden geïnstalleerd als een (*,G) bestaat.

Border-2#show ip msdp vrf blue_vn sa-cache 
MSDP Source-Active Cache - 1 entries
(10.47.7.2, 239.1.1.1), RP 10.47.6.6, BGP/AS 23456, 00:13:59/00:03:28, Peer 10.47.6.6

Border-2#show ip mroute vrf blue_vn 239.1.1.1
IP Multicast Routing Table
Flags: D - Dense, S - Sparse, B - Bidir Group, s - SSM Group, C - Connected,
L - Local, P - Pruned, R - RP-bit set, F - Register flag,
T - SPT-bit set, J - Join SPT, M - MSDP created entry, E - Extranet,
X - Proxy Join Timer Running, A - Candidate for MSDP Advertisement,
U - URD, I - Received Source Specific Host Report, 
Z - Multicast Tunnel, z - MDT-data group sender, 
Y - Joined MDT-data group, y - Sending to MDT-data group, 
G - Received BGP C-Mroute, g - Sent BGP C-Mroute, 
N - Received BGP Shared-Tree Prune, n - BGP C-Mroute suppressed, 
Q - Received BGP S-A Route, q - Sent BGP S-A Route, 
V - RD & Vector, v - Vector, p - PIM Joins on route, 
x - VxLAN group, c - PFP-SA cache created entry, 
* - determined by Assert, # - iif-starg configured on rpf intf, 
e - encap-helper tunnel flag, l - LISP decap ref count contributor
Outgoing interface flags: H - Hardware switched, A - Assert winner, p - PIM Join
t - LISP transit group
Timers: Uptime/Expires
Interface state: Interface, Next-Hop or VCD, State/Mode
(*, 239.1.1.1), 00:21:04/00:00:06, RP 10.47.6.1, flags: SP
Incoming interface: Null, RPF nbr 0.0.0.0
Outgoing interface list: Null <-- Indicates no PIM (*,G) Join received, if there was an OIL, there would be (S,G)

Border-1 stuurt een PIM (S,G) Join naar de bron 10.47.7.2 om het multicast verkeer native aan te trekken, waardoor Edge-1 de (S,G) OIL kan updaten

Edge-1#show ip mroute vrf blue_vn 239.1.1.1 10.47.7.3
IP Multicast Routing Table
Flags: D - Dense, S - Sparse, B - Bidir Group, s - SSM Group, C - Connected,
L - Local, P - Pruned, R - RP-bit set, F - Register flag,
T - SPT-bit set, J - Join SPT, M - MSDP created entry, E - Extranet,
X - Proxy Join Timer Running, A - Candidate for MSDP Advertisement,
U - URD, I - Received Source Specific Host Report, 
Z - Multicast Tunnel, z - MDT-data group sender, 
Y - Joined MDT-data group, y - Sending to MDT-data group, 
G - Received BGP C-Mroute, g - Sent BGP C-Mroute, 
N - Received BGP Shared-Tree Prune, n - BGP C-Mroute suppressed, 
Q - Received BGP S-A Route, q - Sent BGP S-A Route, 
V - RD & Vector, v - Vector, p - PIM Joins on route, 
x - VxLAN group, c - PFP-SA cache created entry, 
* - determined by Assert, # - iif-starg configured on rpf intf, 
e - encap-helper tunnel flag, l - LISP decap ref count contributor
Outgoing interface flags: H - Hardware switched, A - Assert winner, p - PIM Join
t - LISP transit group
Timers: Uptime/Expires
Interface state: Interface, Next-Hop or VCD, State/Mode
(10.47.7.2, 239.1.1.1), 01:19:57/00:02:29, flags: FT
Incoming interface: Vlan1025, RPF nbr 0.0.0.0 <-- Multicast source 10.47.7.2 is in VLAN 1025
Outgoing interface list:
LISP0.4100, 10.47.1.10, Forward/Sparse, 01:19:55/00:02:30, flags: <-- RLOC of Border-1

Multicastverkeer van 10.47.7.2 tot 239.1.1.1 wordt doorgestuurd vanuit 10.47.6.6 (border-1) via Unicast VLAN-insluiting. Border-1 de-kapselt het VXLAN-verkeer in en kapselt dit opnieuw in op Edge-2 (10.47.1.13)

Border-1#show ip mroute vrf blue_vn 239.1.1.1
IP Multicast Routing Table
Flags: D - Dense, S - Sparse, B - Bidir Group, s - SSM Group, C - Connected,
L - Local, P - Pruned, R - RP-bit set, F - Register flag,
T - SPT-bit set, J - Join SPT, M - MSDP created entry, E - Extranet,
X - Proxy Join Timer Running, A - Candidate for MSDP Advertisement,
U - URD, I - Received Source Specific Host Report, 
Z - Multicast Tunnel, z - MDT-data group sender, 
Y - Joined MDT-data group, y - Sending to MDT-data group, 
G - Received BGP C-Mroute, g - Sent BGP C-Mroute, 
N - Received BGP Shared-Tree Prune, n - BGP C-Mroute suppressed, 
Q - Received BGP S-A Route, q - Sent BGP S-A Route, 
V - RD & Vector, v - Vector, p - PIM Joins on route, 
x - VxLAN group, c - PFP-SA cache created entry, 
* - determined by Assert, # - iif-starg configured on rpf intf, 
e - encap-helper tunnel flag, l - LISP decap ref count contributor
Outgoing interface flags: H - Hardware switched, A - Assert winner, p - PIM Join
t - LISP transit group
Timers: Uptime/Expires
Interface state: Interface, Next-Hop or VCD, State/Mode
(*, 239.1.1.1), 5d01h/00:03:14, RP 10.47.6.1, flags: S
Incoming interface: Null, RPF nbr 0.0.0.0
Outgoing interface list:
LISP0.4100, 10.47.1.13, Forward/Sparse, 5d01h/00:02:54, flags:

(10.47.7.2, 239.1.1.1), 00:02:28/00:00:30, flags: MT <-- Unicast Source
Incoming interface: LISP0.4100, RPF nbr 10.47.1.12   <-- RPF neighbor to get to the source (Edge-1)
Outgoing interface list:
LISP0.4100, 10.47.1.13, Forward/Sparse, 00:02:28/00:03:14, flags: <-- RLOC of Edge-2

Kortste snijpad boom (SPT) cutover

Zodra de Last Hop Router (LHR) Edge-2, het multicast pakket langs de (*,G) boom ontvangt, probeert het om SPT cutover te doen en een PIM (S,G) te verzenden toetreden tot Edge-1. 

Edge-2#show ip mroute vrf blue_vn 239.1.1.1
IP Multicast Routing Table
Flags: D - Dense, S - Sparse, B - Bidir Group, s - SSM Group, C - Connected,
L - Local, P - Pruned, R - RP-bit set, F - Register flag,
T - SPT-bit set, J - Join SPT, M - MSDP created entry, E - Extranet,
X - Proxy Join Timer Running, A - Candidate for MSDP Advertisement,
U - URD, I - Received Source Specific Host Report, 
Z - Multicast Tunnel, z - MDT-data group sender, 
Y - Joined MDT-data group, y - Sending to MDT-data group, 
G - Received BGP C-Mroute, g - Sent BGP C-Mroute, 
N - Received BGP Shared-Tree Prune, n - BGP C-Mroute suppressed, 
Q - Received BGP S-A Route, q - Sent BGP S-A Route, 
V - RD & Vector, v - Vector, p - PIM Joins on route, 
x - VxLAN group, c - PFP-SA cache created entry, 
* - determined by Assert, # - iif-starg configured on rpf intf, 
e - encap-helper tunnel flag, l - LISP decap ref count contributor
Outgoing interface flags: H - Hardware switched, A - Assert winner, p - PIM Join
t - LISP transit group
Timers: Uptime/Expires
Interface state: Interface, Next-Hop or VCD, State/Mode
(*, 239.1.1.1), 4d23h/stopped, RP 10.47.6.1, flags: SJC
Incoming interface: LISP0.4100, RPF nbr 10.47.1.10
Outgoing interface list:
Vlan1025, Forward/Sparse-Dense, 4d23h/00:02:40, flags: <-- LHR creates the OIL because of receipt of an IGMP MR

(10.47.7.2, 239.1.1.1), 00:00:02/00:02:57, flags: JT <-- Unicast Source
Incoming interface: LISP0.4100, RPF nbr 10.47.1.12   <-- RPF neighbor to get to 10.47.7.2, which is Edge-1 RLOC
Outgoing interface list:
Vlan1025, Forward/Sparse-Dense, 00:00:02/00:02:57, flags: <-- Multicast traffic is forwarded into VLAN 1025, where 10.47.7.3 is 

De FHR (Edge-1) heeft (S,G) direct naar de RLOC van Edge-2 gericht

Edge-1#show ip mroute vrf blue_vn 239.1.1.1
IP Multicast Routing Table
Flags: D - Dense, S - Sparse, B - Bidir Group, s - SSM Group, C - Connected,
L - Local, P - Pruned, R - RP-bit set, F - Register flag,
T - SPT-bit set, J - Join SPT, M - MSDP created entry, E - Extranet,
X - Proxy Join Timer Running, A - Candidate for MSDP Advertisement,
U - URD, I - Received Source Specific Host Report, 
Z - Multicast Tunnel, z - MDT-data group sender, 
Y - Joined MDT-data group, y - Sending to MDT-data group, 
G - Received BGP C-Mroute, g - Sent BGP C-Mroute, 
N - Received BGP Shared-Tree Prune, n - BGP C-Mroute suppressed, 
Q - Received BGP S-A Route, q - Sent BGP S-A Route, 
V - RD & Vector, v - Vector, p - PIM Joins on route, 
x - VxLAN group, c - PFP-SA cache created entry, 
* - determined by Assert, # - iif-starg configured on rpf intf, 
e - encap-helper tunnel flag, l - LISP decap ref count contributor
Outgoing interface flags: H - Hardware switched, A - Assert winner, p - PIM Join
t - LISP transit group
Timers: Uptime/Expires
Interface state: Interface, Next-Hop or VCD, State/Mode
(*, 239.1.1.1), 5d01h/stopped, RP 10.47.6.1, flags: SCF
Incoming interface: LISP0.4100, RPF nbr 10.47.1.10
Outgoing interface list:
Vlan1025, Forward/Sparse-Dense, 5d01h/00:01:40, flags:

(10.47.7.2, 239.1.1.1), 01:53:06/00:02:42, flags: FT <-- Unicast Source 
Incoming interface: Vlan1025, RPF nbr 0.0.0.0
Outgoing interface list:
LISP0.4100, 10.47.1.13, Forward/Sparse, 00:14:22/00:03:07, flags: <-- Edge-2's RLOC

Verificatie van dataplane (platformonafhankelijk)

Er kunnen verschillende problemen zijn die kunnen voorkomen dat de multicast bron of multicast ontvanger het verkeer verzendt/ontvangt. Deze sectie concentreert zich op de validatie van kwesties die zowel de multicast bron als multicast ontvanger kunnen beïnvloeden, met nadruk op kwesties die niet met hardware programmering verwant zijn.

Verificatie aan de bronzijde

Om de multicast bron en de capaciteit van FHR te bevestigen om (S, G) te creëren, Switch Integrated Security Feature (SISF), LISP, Cisco Express Forwarding (CEF), en toen RPF te bevestigen.

De multicast bron moet in SISF/IP Device-Tracking (IPDT) zijn die de rest van LISP, CEF en uiteindelijk RPF stuurt. 

U kunt de opdracht "show device-tracking database address <IP address>" gebruiken om er zeker van te zijn dat de multicast bron een geldige IPDT-ingang heeft.

Edge-1#show device-tracking database address 10.47.7.2
Codes: L - Local, S - Static, ND - Neighbor Discovery, ARP - Address Resolution Protocol, DH4 - IPv4 DHCP, DH6 - IPv6 DHCP, PKT - Other Packet, API - API created
Preflevel flags (prlvl):
0001:MAC and LLA match 0002:Orig trunk 0004:Orig access 
0008:Orig trusted trunk 0010:Orig trusted access 0020:DHCP assigned 
0040:Cga authenticated 0080:Cert authenticated 0100:Statically assigned
     Network Layer Address Link Layer Address Interface vlan prlvl age  state     Time left 
DH4  10.47.7.2             5254.0012.521d     Gi1/0/4   1025 0024  163s REACHABLE 81 s try 0(84284 s)

Zorg er vervolgens voor dat de LISP-database op de FHR een ingang heeft voor de multicast bron. Gebruik de opdracht "show lisp instance-id <LISP L3 ID> ipv4 database ip address/32"

Edge-1#show lisp instance-id 4100 ipv4 database 10.47.7.2/32
LISP ETR IPv4 Mapping Database for LISP 0 EID-table vrf blue_vn (IID 4100), LSBs: 0x1
Entries total 1, no-route 0, inactive 0, do-not-register 1
10.47.7.3/32, dynamic-eid blue-IPV4, inherited from default locator-set rloc_691b1fe4-5264-44c2-bb1b-0903b3eb2c51
Uptime: 1w2d, Last-change: 1w2d
Domain-ID: local
Service-Insertion: N/A
Locator Pri/Wgt Source State
10.47.1.13 10/10 cfg-intf site-self, reachable
Map-server Uptime ACK Domain-ID 
10.47.1.10 1w2d Yes 0 
10.47.1.11 1w2d Yes 0

Edge-1#show ip lisp instance-id 4100 forwarding eid local 10.47.7.2
Prefix
10.47.7.2/32

CEF maakt een vermelding op basis van LISP, CEF verwijst naar een /32-hostvermelding, niet naar LISP. 

Edge-1#show ip cef vrf blue_vn 10.47.7.2
10.47.7.2/32
nexthop 10.47.7.2 Vlan1025

Vervolgens wordt RPF afgeleid van CEF

Edge-1#show ip rpf vrf blue_vn 10.47.7.2
RPF information for (10.47.7.2)
RPF interface: Vlan1025
RPF neighbor: ? (10.47.7.2) - directly connected
RPF route/mask: 10.47.7.2/32
RPF type: unicast (lisp)
Doing distance-preferred lookups across tables
Multicast Multipath enabled.
RPF topology: ipv4 multicast base, originated from ipv4 unicast base

Als er geen geldige ingang in SISF/IPDT is, die in geen LISP- gegevensbestandafbeelding op FHR resulteert, die in CEF en RPF die naar de Grenzen richten resulteert. Als de multicast bron verkeers-RPF-punten naar de onjuiste interface stuurt, wat resulteert in RPF-fout, (S,G) wordt niet gevormd.

Edge-1#show device-tracking database address 10.47.7.2
Codes: L - Local, S - Static, ND - Neighbor Discovery, ARP - Address Resolution Protocol, DH4 - IPv4 DHCP, DH6 - IPv6 DHCP, PKT - Other Packet, API - API created
Preflevel flags (prlvl):
0001:MAC and LLA match 0002:Orig trunk 0004:Orig access 
0008:Orig trusted trunk 0010:Orig trusted access 0020:DHCP assigned 
0040:Cga authenticated 0080:Cert authenticated 0100:Statically assigned
Network Layer Address Link Layer Address Interface vlan prlvl age state Time left

Edge-1#show lisp instance-id 4100 ipv4 database 10.47.7.2/32
% No database-mapping entry for 10.47.7.2/32.

Edge-1#show ip cef vrf blue_vn 10.47.7.2
10.47.7.0/24
nexthop 10.47.1.10 LISP0.4100 <-- Result of a LISP Negative Map-Reply, so the LISP interface is now the RPF interface 
nexthop 10.47.1.11 LISP0.4100 <-- Result of a LISP Negative Map-Reply, so the LISP interface is now the RPF interface 

Edge-1#show ip rpf vrf blue_vn 10.47.7.2
RPF information for (10.47.7.2)
RPF interface: LISP0.4100
RPF neighbor: ? (10.47.1.11)
RPF route/mask: 10.47.7.2/32
RPF type: unicast ()
Doing distance-preferred lookups across tables
Multicast Multipath enabled.
RPF topology: ipv4 multicast base

Om dit te voorkomen, behandel de multicast bron als een stille host, waar IP Directed Broadcast, Flooding, Static SISF/IPDT bindingen dit probleem kunnen overwinnen. 

Bronregistratie 

PIM-registratie is een unicast-pakketstroom die LISP/VXLAN gebruikt zoals elk ander unicast-pakket. Er zijn verschillende noodzakelijke controles om te valideren dat de FHR de multicast bron naar de Anycast RP goed kan registreren.

Zorg er eerst voor dat de Anycast RP correct is geconfigureerd voor de GDA.

Edge-1#show ip pim vrf blue_vn rp 239.1.1.1
Group: 239.1.1.1, RP: 10.47.6.1, uptime 5d22h, expires never

Zorg ervoor dat de PIM Register-tunnel is gevormd.

Edge-1#show ip pim vrf blue_vn tunnel 
Tunnel1 
Type : PIM Encap
RP : 10.47.6.1 <-- This is from "ip pim vrf blue_vn rp-address 10.47.6.1 ASM_ACL_IPV4_blue_vn_10.47.6.1"
Source : 10.47.6.4 <-- This is from "ip pim vrf blue_vn register-source Loopback4100"
State : UP
Last event : Created (1w2d)

Zorg voor IP bereikbaarheid naar de Anycast RP

Edge-1#show ip cef vrf blue_vn 10.47.6.1
10.47.6.1/32
nexthop 10.47.1.10 LISP0.4100 <-- RLOC of Border-1
nexthop 10.47.1.11 LISP0.4100 <-- RLOC of Border-2

Edge-1#ping vrf blue_vn 10.47.6.1 source lo4100
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.47.6.1, timeout is 2 seconds:
Packet sent with a source address of 10.47.6.4 
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 257/275/294 ms

Verificatie aan ontvangerzijde

• Zorg ervoor dat de multicast ontvanger een IGMP MR verzendt.
• Zorg ervoor dat IGMP-controle is ingeschakeld. L2 alleen VPN’s zijn het enige type VPN dat geen IGMP-snooping heeft ingeschakeld
• Zorg ervoor dat er geen Port ACL, VLAN ACL, Routed Port ACL is geconfigureerd die de IGMP MR zou laten vallen.
• Valideer de versie van IGMP MR, standaard is het IGMPv2, als de multicast-ontvanger IGMPv3 is, dat "ip igmp versie 3" vereist
• Zorg ervoor dat "ip option drop" niet is geconfigureerd

Verificatie LHR PIM (*,G)

• Zorg ervoor dat de LHR de PIM DR is voor het ontvangersubnet/segment
• Zorg ervoor dat er geen "ip multicast group-range" is geconfigureerd  
• Zorg ervoor dat er geen Port ACL, VLAN ACL, Routed Port ACL is geconfigureerd die de IGMP MR zou laten vallen.
• Zorg ervoor dat er geen hoge CPU of Control-Plane Policing (CoPP) is die de IGMP MR laat vallen.

LHR PIM gedeelde boomverificatie

Zorg ervoor dat de RP is geconfigureerd voor de multicast groep

Edge-2#show ip mroute vrf blue_vn 239.1.1.1
IP Multicast Routing Table
Flags: D - Dense, S - Sparse, B - Bidir Group, s - SSM Group, C - Connected,
L - Local, P - Pruned, R - RP-bit set, F - Register flag,
T - SPT-bit set, J - Join SPT, M - MSDP created entry, E - Extranet,
X - Proxy Join Timer Running, A - Candidate for MSDP Advertisement,
U - URD, I - Received Source Specific Host Report, 
Z - Multicast Tunnel, z - MDT-data group sender, 
Y - Joined MDT-data group, y - Sending to MDT-data group, 
G - Received BGP C-Mroute, g - Sent BGP C-Mroute, 
N - Received BGP Shared-Tree Prune, n - BGP C-Mroute suppressed, 
Q - Received BGP S-A Route, q - Sent BGP S-A Route, 
V - RD & Vector, v - Vector, p - PIM Joins on route, 
x - VxLAN group, c - PFP-SA cache created entry, 
* - determined by Assert, # - iif-starg configured on rpf intf, 
e - encap-helper tunnel flag, l - LISP decap ref count contributor
Outgoing interface flags: H - Hardware switched, A - Assert winner, p - PIM Join
t - LISP transit group
Timers: Uptime/Expires
Interface state: Interface, Next-Hop or VCD, State/Mode
(*, 239.1.1.1), 6d01h/stopped, RP 10.47.6.1, flags: SCF
Incoming interface: LISP0.4100, RPF nbr 10.47.1.10
Outgoing interface list:
Vlan1025, Forward/Sparse-Dense, 6d01h/00:01:34, flags:

Zorg ervoor dat RPF naar de Anycast RP juist is

Edge-2#show ip cef vrf blue_vn 10.47.6.1
10.47.6.1/32
nexthop 10.47.1.10 LISP0.4100
nexthop 10.47.1.11 LISP0.4100

Edge-2#show ip rpf vrf blue_vn 10.47.6.1
RPF information for (10.47.6.1)
RPF interface: LISP0.4100
RPF neighbor: ? (10.47.1.10)
RPF route/mask: 10.47.6.1/32
RPF type: unicast ()
Doing distance-preferred lookups across tables
Multicast Multipath enabled.
RPF topology: ipv4 multicast base

MFIB-doorsturen - verificatie vanaf de bronzijde

U kunt de opdracht "toon ip mfib vrf <VN Name> <multicast group> <unicast source> breedsprakig" gebruiken om extra informatie te verkrijgen over het doorsturen van pakketten 

Edge-1#show ip mfib vrf blue_vn 239.1.1.1 10.47.7.2 verbose 
Entry Flags: C - Directly Connected, S - Signal, IA - Inherit A flag,
ET - Data Rate Exceeds Threshold, K - Keepalive
DDE - Data Driven Event, HW - Hardware Installed
ME - MoFRR ECMP entry, MNE - MoFRR Non-ECMP entry, MP - MFIB 
MoFRR Primary, RP - MRIB MoFRR Primary, P - MoFRR Primary
MS - MoFRR Entry in Sync, MC - MoFRR entry in MoFRR Client,
e - Encap helper tunnel flag.
I/O Item Flags: IC - Internal Copy, NP - Not platform switched,
NS - Negate Signalling, SP - Signal Present,
A - Accept, F - Forward, RA - MRIB Accept, RF - MRIB Forward,
MA - MFIB Accept, A2 - Accept backup,
RA2 - MRIB Accept backup, MA2 - MFIB Accept backup
Forwarding Counts: Pkt Count/Pkts per second/Avg Pkt Size/Kbits per second
Other counts: Total/RPF failed/Other drops
I/O Item Counts: HW Pkt Count/FS Pkt Count/PS Pkt Count Egress Rate in pps
VRF blue_vn
(10.47.7.2,239.1.1.1) Flags: K HW DDE
0x42 OIF-IC count: 0, OIF-A count: 1
SW Forwarding: 0/0/0/0, Other: 272/272/0
HW Forwarding: 7431223059161284608/0/0/0, Other: 0/0/0
Vlan1025 Flags: RA A MA NS
LISP0.4100, 10.47.1.13 Flags: RF F NS <-- RLOC of Edge-2
CEF: Adjacency with MAC: 4500000000004000001164770A2F010D0A2F010C000012B5000000000840000000100400BA25CDF4AD3852540017FE730000
Pkts: 0/0/0 Rate: 0 pps

Edge-1#show adjacency lisp0.4100
Protocol Interface Address
IP LISP0.4100 10.47.1.10(23)
IP LISP0.4100 10.47.1.11(27)
IP LISP0.4100 10.47.1.13(8)

Edge-2#show adjacency lisp0.4100 10.47.1.13 detail 
Protocol Interface Address
IP LISP0.4100 10.47.1.13(8)
0 packets, 0 bytes
epoch 0
sourced in sev-epoch 14
Encap length 50
4500000000004000001164770A2F010D
0A2F010C000012B50000000008400000
00100400BA25CDF4AD3852540017FE73
0000
L2 destination address byte offset 0
L2 destination address byte length 0
Link-type after encap: ip
LISP
Next chain element:
IP adj out of GigabitEthernet1/0/1, addr 10.47.1.6

Een EPC kan worden gebruikt om VXLAN-insluiting van het multicast pakket te valideren

Edge-1#monitor capture 1 interface GigabitEthernet1/0/4 IN
Edge-1#monitor capture 1 interface GigabitEthernet1/0/1 OUT
Edge-1#monitor capture 1 match any
Edge-1#monitor capture 1 buffer size 10
Edge-1#monitor capture 1 limit pps 1000
Edge-1#monitor capture 1 start
Edge-1#monitor capture 1 stop

Edge-1#show monitor capture 1 buffer brief
Starting the packet display ........ Press Ctrl + Shift + 6 to exit
1 0.000000 10.47.7.2 -> 239.1.1.1 ICMP 98 Echo (ping) request id=0x0008, seq=28213/13678, ttl=5 <-- Packet as it ingresses the FHR, TTL is 5 
2 0.014254 10.47.7.2 -> 239.1.1.1 ICMP 148 Echo (ping) request id=0x0008, seq=28213/13678, ttl=4 <-- Packet as it leaves the FHR, TTL is 4 as is it decremented

MFIB-doorsturen - verificatie ontvangerzijde

Het onderliggende netwerk routeert dit pakket van Edge-1 naar Edge-2 met behulp van unicast-routing.

Edge-2#show ip mroute vrf blue_vn 239.1.1.1 10.47.7.2
IP Multicast Routing Table
Flags: D - Dense, S - Sparse, B - Bidir Group, s - SSM Group, C - Connected,
L - Local, P - Pruned, R - RP-bit set, F - Register flag,
T - SPT-bit set, J - Join SPT, M - MSDP created entry, E - Extranet,
X - Proxy Join Timer Running, A - Candidate for MSDP Advertisement,
U - URD, I - Received Source Specific Host Report, 
Z - Multicast Tunnel, z - MDT-data group sender, 
Y - Joined MDT-data group, y - Sending to MDT-data group, 
G - Received BGP C-Mroute, g - Sent BGP C-Mroute, 
N - Received BGP Shared-Tree Prune, n - BGP C-Mroute suppressed, 
Q - Received BGP S-A Route, q - Sent BGP S-A Route, 
V - RD & Vector, v - Vector, p - PIM Joins on route, 
x - VxLAN group, c - PFP-SA cache created entry, 
* - determined by Assert, # - iif-starg configured on rpf intf, 
e - encap-helper tunnel flag, l - LISP decap ref count contributor
Outgoing interface flags: H - Hardware switched, A - Assert winner, p - PIM Join
t - LISP transit group
Timers: Uptime/Expires
Interface state: Interface, Next-Hop or VCD, State/Mode
(10.47.7.2, 239.1.1.1), 00:01:39/00:01:20, flags: JT
Incoming interface: LISP0.4100, RPF nbr 10.47.1.12
Outgoing interface list:
Vlan1025, Forward/Sparse-Dense, 00:01:39/00:02:45, flags:

Met de opdracht "toon ip mfib vrf <VN Name> <group address> <unicast source>-tellers" kunt u ervoor zorgen dat de tellers voor het doorsturen van hardware toenemen

Edge-2#show ip mfib vrf blue_vn 239.1.1.1 counters 
Forwarding Counts: Pkt Count/Pkts per second/Avg Pkt Size/Kilobits per second
Other counts: Total/RPF failed/Other drops(OIF-null, rate-limit etc)
VRF blue_vn
12 routes, 7 (*,G)s, 4 (*,G/m)s
Group: 239.1.1.1
RP-tree,
SW Forwarding: 0/0/0/0, Other: 0/0/0
HW Forwarding: 0/0/2/0, Other: 0/0/0
Source: 10.47.7.2,
SW Forwarding: 0/0/0/0, Other: 2/1/1
HW Forwarding: 6118996613340856320/0/0/0, Other: 0/0/0
Totals - Source count: 1, Packet count: 6118996613340856320

Edge-2#show ip igmp snooping groups vlan 1025 239.1.1.1
Vlan Group     Type Version Port List
-----------------------------------------------------------------------
1025 239.1.1.1 igmp v2      Gi1/0/4

U kunt uitgaande multicast tellers gebruiken om te bevestigen of het multicast verkeer LHR, naar de multicast ontvanger heeft verlaten. Gebruik de opdracht "toon controllers Ethernet-controller <interface> | Inclusief multicast|Verzenden"

Edge-2#show controllers ethernet-controller g1/0/4 | include Multicast|Transmit
Transmit                  GigabitEthernet1/0/5          Receive 
426729240 Total bytes                                   100803109 Total bytes 
5732 Unicast frames                                     949355 Unicast frames 
5732 Unicast bytes                                      93563018 Unicast bytes 
4388433 Multicast frames                                32346 Multicast frames 
4388433 Multicast bytes                                 7236178 Multicast bytes
<snip>
Edge-2#show controllers ethernet-controller g1/0/5 | include |Multicast|Transmit
Transmit                  GigabitEthernet1/0/5          Receive 
426742895 Total bytes                                   100813570 Total bytes 
5733 Unicast frames                                     949456 Unicast frames 
5733 Unicast bytes                                      93573016 Unicast bytes 
4388569 Multicast frames                                32348 Multicast frames 
4388569 Multicast bytes                                 7236641 Multicast bytes 

Een andere manier om multicast verkeer te valideren dat de LHR verlaat, is door een EPC te doen naar de multicast-ontvanger. 

Edge-2#show monitor capture 1 buffer brief
Starting the packet display ........ Press Ctrl + Shift + 6 to exit
1 0.168401 10.47.7.2 -> 239.1.1.1 ICMP 106 Echo (ping) request id=0x0008, seq=35903/16268, ttl=3
2 0.969138 10.47.7.2 -> 239.1.1.1 ICMP 106 Echo (ping) request id=0x0008, seq=35904/16524, ttl=3

Verificatie van dataplane (afhankelijk van platform)

(S,G) Aanmaken - CPU puntpad

Opdat de FHR (S,G) status kan creëren, worden een paar van de multicast pakketten die vanuit de multicast bron worden verstuurd naar de CPU die door het MFIB moet worden verwerkt. De multicastpakketten worden naar de FED-wachtrij "CPU_Q_MCAST_DATA" gestuurd

Edge-1#show platform software fed switch active punt cpuq 30
Punt CPU Q Statistics
===========================================
CPU Q Id : 30
CPU Q Name : CPU_Q_MCAST_DATA
Packets received from ASIC : 27124 
Send to IOSd total attempts : 27124 
Send to IOSd failed count : 0
RX suspend count : 0
RX unsuspend count : 0
RX unsuspend send count : 0
RX unsuspend send failed count : 0
RX consumed count : 0
RX dropped count : 0
RX non-active dropped count : 0
RX conversion failure dropped : 0
RX INTACK count : 0
RX packets dq'd after intack : 0
Active RxQ event : 0
RX spurious interrupt : 0
RX phy_idb fetch failed: 0
RX table_id fetch failed: 0
RX invalid punt cause: 0

Replenish Stats for all rxq:
-------------------------------------------
Number of replenish : 0
Number of replenish suspend : 0
Number of replenish un-suspend : 0
-------------------------------------------

Bovendien mag de CoPP-wachtrij voor MCAST Data geen verlies lijden. Gebruik de opdracht "toon platform hardware gevoed actieve qos wachtrij stats interne cpu policer | MCAST Data|QId" opnemen

Edge-1#show platform hardware fed active qos queue stats internal cpu policer | include MCAST Data|QId
QId PlcIdx                                   Queue  Name               Enabled   Rate     Rate      Drop(Bytes) Drop(Frames)
30   9                                       MCAST  Data                 No      500      400       0           0 

Als het verkeer afkomstig is van een direct aangesloten bron, wordt het verwerkt door de Linux Shared Memory Punt Interface (LSMPI) wachtrij voor "direct verbonden bron" als het afkomstig is van een (S, G) Join, is het "Mcast PIM Signaling" 

Gebruik de opdracht "Toon platform software infrastructuur lsmpi punt | Oorzaak |Drogen" opnemen

Edge-1#show platform software infrastructure lsmpi punt | include Cause|Mcast
Cause                           Total        Total      Length        Dot1q encap        Other        SKB
Mcast Directly Connected Source 0            27038      0             0                  0            0 
Mcast IPv4 Options data packet  0            0          0             0                  0            0 
Mcast Internal Copy             0            0          0             0                  0            0 
Mcast IGMP Unroutable           0            0          0             0                  0            0 
Mcast PIM signaling             0            0          0             0                  0            0 
Mcast punt to RP                0            0          0             0                  0            0 
Mcast UDLR                      0            0          0             0                  0            0 

Vervolgens kan een FED Punject-pakketopname worden uitgevoerd om multicast-pakketten te zien van de bron en de groep op de CPU, wat de inkomende interface en de CPU-wachtrij bevestigt.

Edge-1#debug platform software fed switch active punt packet-capture set-filter "ip.addr==239.1.1.1"
Edge-1#debug platform software fed switch active punt packet-capture start  
Edge-1#debug platform software fed switch active punt packet-capture stop 
Punt packet capturing stopped. Captured 2 packet(s)

Edge-1#show platform software fed switch active punt packet-capture brief 
Punt packet capturing: disabled. Buffer wrapping: disabled
Total captured so far: 2 packets. Capture capacity : 4096 packets
Capture filter : "ip.addr==239.255.255.254"
------ Punt Packet Number: 1, Timestamp: 2024/08/26 15:38:27.341 ------
interface : physical: GigabitEthernet1/0/4[if-id: 0x0000000c], pal: Vlan1025 [if-id: 0x0000001d]
metadata : cause: 12 [Mcast Directly Connected Source], sub-cause: 0, q-no: 30, linktype: MCP_LINK_TYPE_IP [1]
ether hdr : dest mac: 0100.5e7f.fffe, src mac: 5254.0012.521d
ether hdr : ethertype: 0x0800 (IPv4)
ipv4 hdr : dest ip: 239.1.1.1, src ip: 10.47.7.2
ipv4 hdr : packet len: 84, ttl: 5, protocol: 1 (ICMP)
icmp hdr : icmp type: 8, code: 0

Mroute Hardware Programming - IOS Mroute

Hardware programmering van de (S, G) gebruikt dezelfde structuur als elk ander programmeerpad: IOS naar FMAN RP naar FMAN FP, naar FED.

Edge-1#show ip mroute vrf blue_vn 239.1.1.1
IP Multicast Routing Table
Flags: D - Dense, S - Sparse, B - Bidir Group, s - SSM Group, C - Connected,
L - Local, P - Pruned, R - RP-bit set, F - Register flag,
T - SPT-bit set, J - Join SPT, M - MSDP created entry, E - Extranet,
X - Proxy Join Timer Running, A - Candidate for MSDP Advertisement,
U - URD, I - Received Source Specific Host Report, 
Z - Multicast Tunnel, z - MDT-data group sender, 
Y - Joined MDT-data group, y - Sending to MDT-data group, 
G - Received BGP C-Mroute, g - Sent BGP C-Mroute, 
N - Received BGP Shared-Tree Prune, n - BGP C-Mroute suppressed, 
Q - Received BGP S-A Route, q - Sent BGP S-A Route, 
V - RD & Vector, v - Vector, p - PIM Joins on route, 
x - VxLAN group, c - PFP-SA cache created entry, 
* - determined by Assert, # - iif-starg configured on rpf intf, 
e - encap-helper tunnel flag, l - LISP decap ref count contributor
Outgoing interface flags: H - Hardware switched, A - Assert winner, p - PIM Join
t - LISP transit group
Timers: Uptime/Expires
Interface state: Interface, Next-Hop or VCD, State/Mode

(*, 239.255.255.254), 00:08:29/stopped, RP 10.47.6.1, flags: SCF <-- Anycast RP address 
Incoming interface: LISP0.4100, RPF nbr 10.47.1.10 <-- RLOC of Border-1
Outgoing interface list:
Vlan1025, Forward/Sparse-Dense, 00:08:29/00:00:30, flags:

(10.47.7.2, 239.1.1.1), 00:08:28/00:02:54, flags: FT <-- Unicast source 
Incoming interface: Vlan1025, RPF nbr 0.0.0.0 <-- Multicast source is in VLAN 1025
Outgoing interface list:
LISP0.4100, 10.47.1.13, Forward/Sparse, 00:08:23/00:03:07, flags: <-- Forwarding to Edge-2 

Virtuele hardwareprogrammering - IOS MFIB

Multicastroutes worden vervolgens toegevoegd aan de Multicast Forwarding Information Base (MFIB), die vergelijkbaar is met hoe de Routing Information Base (RIB) wordt toegevoegd aan Cisco Express Forwarding (CEF), het multicast-equivalent is de MFIB.

Edge-1#show ip mfib vrf blue_vn 239.1.1.1 10.47.7.2 verbose 
Entry Flags: C - Directly Connected, S - Signal, IA - Inherit A flag,
ET - Data Rate Exceeds Threshold, K - Keepalive
DDE - Data Driven Event, HW - Hardware Installed
ME - MoFRR ECMP entry, MNE - MoFRR Non-ECMP entry, MP - MFIB 
MoFRR Primary, RP - MRIB MoFRR Primary, P - MoFRR Primary
MS - MoFRR Entry in Sync, MC - MoFRR entry in MoFRR Client,
e - Encap helper tunnel flag.
I/O Item Flags: IC - Internal Copy, NP - Not platform switched,
NS - Negate Signalling, SP - Signal Present,
A - Accept, F - Forward, RA - MRIB Accept, RF - MRIB Forward,
MA - MFIB Accept, A2 - Accept backup,
RA2 - MRIB Accept backup, MA2 - MFIB Accept backup
Forwarding Counts: Pkt Count/Pkts per second/Avg Pkt Size/Kbits per second
Other counts: Total/RPF failed/Other drops
I/O Item Counts: HW Pkt Count/FS Pkt Count/PS Pkt Count Egress Rate in pps
VRF blue_vn
(10.47.7.2,239.1.1.1) Flags: K HW DDE <-- Multicast source and GDA 
0x21 OIF-IC count: 0, OIF-A count: 1
SW Forwarding: 0/0/0/0, Other: 2/2/0
HW Forwarding: 0/0/0/0, Other: 0/0/0
Vlan1025 Flags: RA A MA NS
LISP0.4100, 10.47.1.13 Flags: RF F NS <-- RLOC of Edge-2 and the RPF interface to reach 10.47.1.13
CEF: Adjacency with MAC: 4500000000004000001164770A2F010D0A2F010C000012B5000000000840000000100400BA25CDF4AD3852540017FE730000
Pkts: 0/0/0 Rate: 0 pps

Mroute Hardware Programming - RP MFIB

Gebruik de opdracht "toon platform software ip switch active r0 mfib vrf index <VRF index> groep <GDA/32>"

Edge-1#show vrf detail blue_vn | inc Id
VRF blue_vn (VRF Id = 2); default RD <not set>; default VPNID <not set>

Edge-1#show platform software ip switch active r0 mfib vrf index 2 group 239.1.1.1/32 
Route flags:
S - Signal; C - Directly connected;
IA - Inherit A Flag; L - Local;
BR - Bidir route
*, 239.1.1.1/32 --> OBJ_INTF_LIST (0x6b)
Obj id: 0x6b, Flags: C
OM handle: 0x34803c47f0 

Edge-2#show platform software ip switch active r0 mfib vrf index 2 group address 239.1.1.1 10.47.7.2 
Route flags:
S - Signal; C - Directly connected;
IA - Inherit A Flag; L - Local;
BR - Bidir route
239.1.1.1, 10.47.7.2/64 --> OBJ_INTF_LIST (0x21)
Obj id: 0x21, Flags: unknown
OM handle: 0x34803c4088 

Mroute Hardware Programming - FP MFIB

De FMAN RP-vermelding voor dezelfde routes bevat een Asynchronous Object Manager (AOM) ID, deze AOM ID wordt gebruikt om verdere programmering te valideren.

Gebruik de opdracht "show platform software ip switch active f0 mfib vrf index <VRF Index> group <GDA/32>"

Edge-1#show platform software ip switch active f0 mfib vrf index 2 group 239.1.1.1/32
Route flags:
S - Signal; C - Directly connected;
IA - Inherit A Flag; L - Local;
BR - Bidir route
*, 239.1.1.1/32 --> OBJ_INTF_LIST (0x6b)
Obj id: 0x6b, Flags: C
aom id: 29154, HW handle: (nil) (created)

Edge-1#show platform software ip switch active f0 mfib vrf index 2 group address 239.1.1.1 10.47.7.2
Route flags:
S - Signal; C - Directly connected;
IA - Inherit A Flag; L - Local;
BR - Bidir route
239.1.1.1., 10.47.7.2/64 --> OBJ_INTF_LIST (0x21)
Obj id: 0x21, Flags: unknown
aom id: 36933, HW handle: (nil) (created)

Mroute Hardware Programming - Mroute Objects

Controleer met de AOM-id's het object en de ouderobjecten op zowel (*,G) als (S,G) met de opdrachten object-manager. U kunt de opdracht "show platform software object-manager switch active f0 object <AOM ID>"of "show platform software object-manager switch active f0 object <AOM ID> parent gebruiken" 

Elke route heeft twee ouderobjecten. Een van de objecten verwijst naar de ipv4_mcast tabel, de andere is een mlist, die gebruikt wordt in volgende opdrachten. 

Edge-1#show platform software object-manager switch active f0 object 29154
Object identifier: 29154
Description: PREFIX 0.0.0.0 , 239.1.1.1/32 (Table id 2)
Obj type id: 72
Obj type: mroute-pfx
Status: Done, Epoch: 0, Client data: 0xa3e23c48

Edge-1#show platform software object-manager switch active f0 object 29154 parents 
Object identifier: 26509
Description: ipv4_mcast table 2 (blue_vn), vrf id 2
Status: Done
Object identifier: 29153
Description: mlist 107
Status: Done

Edge-1#show platform software object-manager switch active f0 object 36933
Object identifier: 36933
Description: PREFIX 10.47.7.2 , 239.1.1.164 (Table id 2)
Obj type id: 72
Obj type: mroute-pfx
Status: Done, Epoch: 0, Client data: 0xa413c928

Edge-1#show platform software object-manager switch active f0 object 36933 parents 
Object identifier: 26509
Description: ipv4_mcast table 2 (blue_vn), vrf id 2
Status: Done
Object identifier: 47695
Description: mlist 33
Status: Done

Mroute Hardware Programming - Mlist Objects

De MLIST-objecten zijn een combinatie van zowel inkomende interfaces als uitgaande interfacelijsten. U kunt de opdracht "show platform software mlist switch active f0 index <index>" gebruiken

This is for (*,G)
Edge-1#show platform software mlist switch active f0 index 107
Multicast List entries
OCE Flags:
NS - Negate Signalling; IC - Internal copy;
A - Accept; F - Forward;
OCE         Type                   OCE Flags   Interface 
--------------------------------------------------------------------------------------
0xf8000171  OBJ_ADJACENCY          A           LISP0.4100 <-- A Flag indicates an Incoming interface for (*,G)
0xf80001d1  OBJ_ADJACENCY          NS, F       Vlan1025   <-- F Flag indicates an Outgoing interface for (*,G)

This is for (S,G)
Edge-1#show platform software mlist switch active f0 index 33 
Multicast List entries
OCE Flags:
NS - Negate Signalling; IC - Internal copy;
A - Accept; F - Forward;
OCE         Type                   OCE Flags      Interface 
--------------------------------------------------------------------------------------
0x5c        OBJ_ADJACENCY          NS, F          LISP0.4100  <-- F Flag indicates an Outgoing interface(s), for (S,G)
0xf80001d1  OBJ_ADJACENCY          A              Vlan1025    <-- A Flag indicates an Incoming interface, for (S,G)

Mroute Hardware Programming - FED Mroute

Om de FED-programmering te valideren, gebruikt u de opdracht "toon platform software fed switch active ip mfib vrf <VN Name> <GDA> <unicast source>"

Edge-1#show platform software fed switch active ip mfib vrf blue_vn 239.1.1.1 10.47.7.2 
Multicast (S,G) Information
VRF : 2
Source Address : 10.47.7.2
HTM Handler : 0x7f45d98c7728
SI Handler : 0x7f45d9a44a28
DI Handler : 0x7f45d9bcb2d8
REP RI handler : 0x7f45d97e7188
Flags : 
Packet count : 0
State : 4
RPF : 
Vlan1025 A
OIF : 
Vlan1025 A
LISP0.4100 F NS
(Adj: 0x5c )

De Rewrite Index verstrekt informatie over inkapseling van het multicast verkeer, dat is wat de hefboomwerkingen van de Koppelingsreplicatie van het Hoofd. U kunt de opdracht "show platform hardware fed switch active fwd-asic abstraction print-resource-handle <REP RI Handle> 1" gebruiken

Edge-1#show platform hardware fed switch active fwd-asic abstraction print-resource-handle 0x7f45d97e7188 1
Handle:0x7f45d97e7188 Res-Type:ASIC_RSC_RI_REP Res-Switch-Num:255 Asic-Num:255 Feature-ID:AL_FID_L3_MULTICAST_IPV4 Lkp-ftr-id:LKP_FEAT_INVALID ref_count:1
priv_ri/priv_si Handle: (nil)Hardware Indices/Handles: index0:0x19 mtu_index/l3u_ri_index0:0x0 index1:0x19 mtu_index/l3u_ri_index1:0x0 
Cookie length: 56
00 00 00 00 00 00 00 00 02 00 00 00 03 07 2f 0a fe ff ff ef 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Detailed Resource Information (ASIC_INSTANCE# 0)
----------------------------------------
Replication list RI handle = 7f45d97e7188
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ASIC [0] Replication Expansion Handle [0x7f45d9b9c048]
Replication list :
Number of RIs = 6
Start RI = 25
Common rewrite = No
Replication REP_RI 0x19 [elements = 1]
[0] ri_list[0]=4 RI_MCAST_BRIDGE_V6 port=88 ri_ref_count:1 dirty=0
RIL first:4 last:4 start:4 ril_total:4 ref_count:0
RI list this:4 num_pairs:4 free:3 next:0 prev:0 ---->
uri1:50 ri_ref_count_1:1 uri0:26 ri_ref_count_0:1 ptr_type:0 last:1 dirty:1
uri1:49151 ri_ref_count_1:0 uri0:49151 ri_ref_count_0:1 ptr_type:1 last:1 dirty:1
uri1:49151 ri_ref_count_1:0 uri0:49151 ri_ref_count_0:0 ptr_type:1 last:1 dirty:0
uri1:49151 ri_ref_count_1:0 uri0:49151 ri_ref_count_0:0 ptr_type:1 last:1 dirty:0
<snip>

Vervolgens neemt u de URI-waarden om het bereik van de herschrijvingsindex te valideren. Gebruik de opdracht "show platform hardware fed switch active fwd-asic resource asic all rewrite-index range <URI> <URI>"

Edge-1#show platform hardware fed switch active fwd-asic resource asic all rewrite-index range 50 50 
ASIC#:0 RI:50 Rewrite_type:AL_RRM_REWRITE_IPV4_VXLAN_INNER_IPV4_ENCAP(110) Mapped_rii:LVX_L3_ENCAP_L2_PAYLOAD(123)
Dst Mac: MAC Addr: ba:25:cd:f4:ad:38,
Src IP: 10.47.1.12 <-- RLOC of Edge-1
Dst IP: 10.47.1.13 <-- RLOC of Edge-2
IPv4 TTL: 0
LISP INSTANCEID: 0
L3IF LE Index: 49
ASIC#:1 RI:50 Rewrite_type:AL_RRM_REWRITE_IPV4_VXLAN_INNER_IPV4_ENCAP(110) Mapped_rii:LVX_L3_ENCAP_L2_PAYLOAD(123)
Dst Mac: MAC Addr: ba:25:cd:f4:ad:38,
Src IP: 10.47.1.12 <-- RLOC of Edge-1
Dst IP: 10.47.1.13 <-- RLOC of Edge-2
IPv4 TTL: 0
LISP INSTANCEID: 0
L3IF LE Index: 49

Neem vervolgens de RI van de vorige opdracht voor verdere verificatie. Gebruik de opdracht "show platform software fed switch active ip mfib vrf <VN Name> <GDA> <source>"

Edge-1#show platform software fed switch active ip mfib vrf blue_vn 239.1.1.1 10.47.7.2 
Multicast (S,G) Information
VRF : 2
Source Address : 10.47.7.2
HTM Handler : 0x7f45d98c7728
SI Handler : 0x7f45d9a44a28
DI Handler : 0x7f45d9bcb2d8
REP RI handler : 0x7f45d97e7188
Flags : 
Packet count : 0
State : 4
RPF : 
Vlan1025 A
OIF : 
Vlan1025 A
LISP0.4100 F NS
(Adj: 0x5c )

Gebruik de opdracht "toon platofmr software fed switch actieve ip adj | <destroom>" opnemen

Edge-1#show platform software fed switch active ip adj 10.47.1.12
IPV4 Adj entries
dest       if_name    dst_mac        si_hdl         ri_hdl          pd_flags adj_id Last-modified 
----       -------    -------        ------         ------          -------- ------ ------------- 
10.47.1.12 LISP0.4100 4500.0000.0000 0x7f45d9a4a5e8 0x7f45d9a4a798  0x60     0x5c   2024/08/21 16:18:58.948 <-- 0x5c matches the Adj in the previous command

Op de LHR kunt u de doelindex valideren om te zien waar het multicast pakket naar wordt doorgestuurd, wat de multicast ontvanger(s) is. U kunt de opdracht "show platform software fed switch active ip mfib vrf <VN Name> <GDA> <source> gebruiken"

Edge-2#show platform software fed switch active ip mfib vrf blue_vn 239.1.1.1 10.47.7.2
Multicast (S,G) Information
VRF : 2
Source Address : 10.47.7.2
HTM Handler : 0x7f0efdad33a8
SI Handler : 0x7f0efdad2648
DI Handler : 0x7f0efdad7668
REP RI handler : 0x7f0efdad4858
Flags : 
Packet count : 0
State : 4
RPF : 
LISP0.4100 A
OIF : 
Vlan1025 F NS
LISP0.4100 A
(Adj: 0xf8000171 )

switch Neem de DI Handler en gebruik in de opdracht "toon platform hardwarematige fwd-asic abstraction print-resource-handle <DI handle> 1"

Edge-2#show platform hardware fed switch active fwd-asic abstraction print-resource-handle 0x7f0efdad7668 1
Handle:0x7f0efdad7668 Res-Type:ASIC_RSC_DI Res-Switch-Num:255 Asic-Num:255 Feature-ID:AL_FID_L3_MULTICAST_IPV4 Lkp-ftr-id:LKP_FEAT_INVALID ref_count:1
priv_ri/priv_si Handle: (nil)Hardware Indices/Handles: index0:0x527c mtu_index/l3u_ri_index0:0x0 index1:0x527c mtu_index/l3u_ri_index1:0x0 
Cookie length: 56
00 00 00 00 00 00 00 00 02 00 00 00 03 07 2f 0a fe ff ff ef 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Detailed Resource Information (ASIC_INSTANCE# 0)
----------------------------------------
Destination index = 0x527c 
pmap = 0x00000000 0x00000010
pmap_intf : [GigabitEthernet1/0/4]
cmi = 0x0
rcp_pmap = 0x0
al_rsc_cmi
CPU Map Index (CMI) [0]
ctiLo0 = 0
ctiLo1 = 0
ctiLo2 = 0
cpuQNum0 = 0
cpuQNum1 = 0
cpuQNum2 = 0
npuIndex = 0
stripSeg = 0
copySeg = 0
Detailed Resource Information (ASIC_INSTANCE# 1)
----------------------------------------
Destination index = 0x527c 
pmap = 0x00000000 0x00000000
cmi = 0x0
rcp_pmap = 0x0
al_rsc_cmi
CPU Map Index (CMI) [0]
ctiLo0 = 0
ctiLo1 = 0
ctiLo2 = 0
cpuQNum0 = 0
cpuQNum1 = 0
cpuQNum2 = 0
npuIndex = 0
stripSeg = 0
copySeg = 0
==============================================================