Hi all,
I am trying multicast service on SR-MPLS, referencing this documentation.
I would like to configure "Static Segment Routing Tree-SID" for now.
Network Topology is as the figure.
Root node is xr9kv-1, loopback addr is 10.255.0.1.
Leaft node is xr9kv-4, loopback addr is 10.255.0.4.
Multicast source is client1; 192.168.01.
The PCE configuration is as below.
RP/0/RP0/CPU0:xr9kv-4#show running-config pce
Sun Oct 6 10:04:42.484 UTC
pce
address ipv4 10.255.0.4
segment-routing
traffic-eng
p2mp
endpoint-set LEAF
ipv4 10.255.0.4
!
policy TREE-SID
source ipv4 10.255.0.1
color 9999 endpoint-set LEAF
treesid mpls 15200
candidate-paths
preference 100
dynamic
!
!
!
!
!
!
!
password encrypted 0614002E581F5B4A
!
And, computed status as below.
RP/0/RP0/CPU0:xr9kv-4#show pce lsp p2mp private
Sun Oct 6 10:09:26.385 UTC
Tree: TREE-SID, Root: 10.255.0.1
PCC: 10.255.0.1
Label: 15200 Operational: up Admin: up
Local LFA FRR: Disabled
Metric Type: TE
Transition count: 3
Uptime: 00:36:13 (since Sun Oct 06 09:33:13 UTC 2024)
Destinations: 10.255.0.4
Nodes:
Node[0]: 10.255.0.1+ (xr9kv-1)
Role: Ingress
State Changes: 0x7 (New Node,New Hops,Role Change)
Endpoints: 10.255.0.4
Hops:
Incoming: 15200 CC-ID: 3
Outgoing: 15200 CC-ID: 3 (10.14.0.4) [xr9kv-4:10.255.0.4]
Endpoints: 10.255.0.4
Node[1]: 10.255.0.4+ (xr9kv-4)
Role: Egress
State Changes: 0x7 (New Node,New Hops,Role Change)
Hops:
Incoming: 15200 CC-ID: 4
The root node knows lsp computed on PCE.
RP/0/RP0/CPU0:xr9kv-1#show seg traffic-eng p2mp policy private
Sun Oct 6 10:12:45.910 UTC
SR-TE P2MP policy database:
----------------------
! - Replications with Fast Re-route, * - Stale dynamic policies/endpoints
Policy: TREE-SID LSM-ID: 0x40003
PCE Creator: 10.255.0.4
Role: Root
Tree label: 15200
Head LSM-ID label: 15200
Replication:
Incoming label: 15200 CC-ID: 3
LMRIB rewrite installed
FIB path is not notified
Interface: GigabitEthernet0/0/0/2 [10.14.0.4] Outgoing label: 15200 CC-ID: 3
LMRIB rewrite installed
FIB path notified
Event history (latest first):
Time Event
Oct 6 09:33:12.951 Forwarding updated: LBL RW ADD LBL: 15200 TBL-ID: 0xe0000000 flags: 0x10 LSM-ID: 0x40003 || OUTINFO ADD LBL: 15200 -> 15200 IFH: 0x1000030 addr: 10.14.0.4 || HEAD LSM-ID SET LBL: 15200 LSM-ID: 0x40003 || LMRIB FLUSH
Oct 6 09:33:12.951 TreeSID created
But mrib on the root node does not have specific entry.
I think, it should have the entry like (192.168.0.1, 232.1.1.1)
RP/0/RP0/CPU0:xr9kv-1#show mrib vrf L3VPN route
(*,224.0.0.0/24) Flags: D P
Up: 2w3d
(*,224.0.1.39) Flags: S P
Up: 2w3d
(*,224.0.1.40) Flags: S P
Up: 2w3d
Outgoing Interface List
GigabitEthernet0/0/0/3 Flags: II LI, Up: 2w3d
(*,232.0.0.0/8) Flags: D P
Up: 1d08h
(*,233.0.0.0/8) Flags: D P
Up: 1d06h
What configuration is missing?
Configuration of xr9kv-1 is as below. (only related multicast routing)
RP/0/RP0/CPU0:xr9kv-1#show running-config multicast-routing
Sun Oct 6 10:23:14.240 UTC
multicast-routing
address-family ipv4
interface Loopback0
enable
!
interface all enable
!
vrf L3VPN
address-family ipv4
interface Loopback0
!
interface GigabitEthernet0/0/0/3
enable
!
interface all enable
mdt static segment-routing
!
!
!
RP/0/RP0/CPU0:xr9kv-1#
RP/0/RP0/CPU0:xr9kv-1#show running-config router pim
Sun Oct 6 10:23:21.470 UTC
router pim
address-family ipv4
interface Loopback0
enable
!
interface GigabitEthernet0/0/0/2
enable
!
!
vrf L3VPN
address-family ipv4
rpf topology route-policy sr-p2mp-core-tree
interface GigabitEthernet0/0/0/3
enable
!
ssm range ssm
sr-p2mp-policy TREE-SID
static-group 232.1.1.1 192.168.0.1
static-group 233.1.1.5 192.168.0.1
!
!
!
!
