Displaying Information for Multicast Snooping

Use the show ip pimsm-snooping cache command to display (*,g), (s,g), and OIF information learned by way of PIM join and prune messages. 

device(config)# show ip pimsm-snooping cache 

 OIF Info:
 TR - OIF Belongs to Trunk/LAG, Primary port is displayed
 SG - (*,g)/(s,g) downstream fsm state:
     NI : No Info, J : Join, PP : Prune Pending, CLEAN : cleanup in progress
 RPT - (s,g,rpt) downstream fsm state:
     NI : No Info, P : Pruned, PP : Prune Pending, Px : Temp step in (*,G)
     join processing, PPx : Temp State in (*,G) processing, CLEAN : cleanup
     in progress.

PIMSM Snoop cache for vlan 503
1    (* 225.0.0.1) Up Time: 1d 19:41:48
	OIF: 1 
	TR(e3/13) G : J(194) ET: 210, Up Time: 1d 19:41:48 , ICL, Remote

2    (* 225.1.1.1) Up Time: 5d 18:43:56
	OIFs: 2 
	TR(e3/10) G : J(167) ET: 210, Up Time: 5d 18:43:56 , CCEP, Local
	TR(e3/13) G : J(200) ET: 210, Up Time: 1d 19:41:48 , ICL, Remote

You can also use the show ip pimsm-snooping cache command to display the MCT information if the VLAN is an MCT member.

In the following example, the show ip multicast cluster is used. YES indicates that reports or leaves were received locally (processing native control packets). 

device(config)# show ip multicast cluster group 

p-:physical, ST:static, QR:querier, EX:exclude, IN:include, Y:yes, N:no
VL100 : 1 groups, 1 group-port
group p-port          ST   QR life mode source local
1     225.1.1.1  e5/5 no   no  200   EX      0   YES
2     225.1.1.1 e5/10 no   no  200   EX      0   YES

In the following example, NO indicates that reports or leaves were received remotely. In this case, a join was received on the CCEP of the MCT peer device. Native control packets were processed by the peer device, and then the entries were synced over MDUP to this cluster device. 

device(config)# show ip multicast cluster group

p-:physical, ST:static, QR:querier, EX:exclude, IN:include, Y:yes, N:no
VL100 : 1 groups, 1 group-port
group  p-port          ST QR life mode source local
1      225.1.1.1 e1/10 no no  200   EX      0    NO
2      225.1.1.1 e1/10 no no  200   EX      0    NO

The following example displays status about the IGMP router port. 

device(config)# show ip multicast cluster vlan 100

Version=2, Intervals: Query=125, Group Age=260, Max Resp=10, Other Qr=260
VL100: cfg V3, vlan cfg passive, 1 grp, 2 (SG) cache, rtr ports,
router ports: e5/9(260) 100.100.100.1 (local:1, mct peer:0),
e5/4    has    1 groups,
This interface is non-Querier (passive)
default V3 trunk
(local:1, mct peer:0)

Use the show ip multicast cluster pimsm-snooping command to display detailed information about OIFs added by way of a PIM-SM snooping. 

device(config)# show ip multicast cluster pimsm-snooping

Example: Port: 1/7/3 (age, port type, ref_count, owner flag, pruned flag)
source: 1/7/3 has 1 src: 11.0.0.5(age, ref_count, owner flag, pruned flag)
owner flag: 0x0: local, 0x1 remote cep, 0x2 remote ccep
vlan 100, has 1 caches.
1 (* 224.10.10.10) has 2 pim join ports out of 2 OIF
1/7/3 (1,ICL), 1/7/5 (1, CCEP)

Refer to the RUCKUS FastIron Command Reference for information on show ipv6 multicast cache and other MLD multicast commands.

Parent topic: Layer 2 Multicast Snooping over MCT