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IGMP Snooping Commands

14 – 387

show igmp receiver-table

Displays the receivers to which an MX forwards multicast traffic. You can display receivers for all

VLANs, a single VLAN, or a group or groups identified by group address and network mask.

Syntax

show igmp receiver-table [vlan vlan-id] [group group-ip-addr/mask-length]

Defaults

None.

Access

All.

History

Introduced in MSS Version 1.0.

Examples

The following command displays all multicast receivers in VLAN orange:

MX# show igmp receiver-table vlan orange

VLAN: orange

Session Port Receiver-IP Receiver-MAC TTL

--------------- ---- --------------- ----------------- -----

224.0.0.2 none none none undef

237.255.255.255 5 10.10.10.11 00:02:04:06:08:0b 179

237.255.255.255 5 10.10.10.13 00:02:04:06:08:0d 179

237.255.255.255 5 10.10.10.14 00:02:04:06:08:0e 179

237.255.255.255 5 10.10.10.12 00:02:04:06:08:0c 179

237.255.255.255 5 10.10.10.10 00:02:04:06:08:0a 179

The following command lists all receivers for multicast groups 237.255.255.1 through

237.255.255.255, in all VLANs:

MX# show igmp receiver-table group 237.255.255.0/24

VLAN: red

Session Port Receiver-IP Receiver-MAC TTL

--------------- ---- --------------- ----------------- -----

237.255.255.2 2 10.10.20.19 00:02:04:06:09:0d 112

237.255.255.119 3 10.10.30.31 00:02:04:06:01:0b 112

VLAN: green

Session Port Receiver-IP Receiver-MAC TTL

--------------- ---- --------------- ----------------- -----

237.255.255.17 11 10.10.40.41 00:02:06:08:02:0c 12

237.255.255.255 6 10.10.60.61 00:05:09:0c:0a:01 111

Table 14– 4 describes the fields in this display.

vlan vlan-id

VLAN name or number. If you do not specify a VLAN, MSS displays the

multicast receivers on all VLANs.

group

group-ip-addr/mask-length

IP address and subnet mask of a multicast group, in CIDR format (for

example, 239.20.20.10/24). If you do not specify a group address, MSS

displays the multicast receivers for all groups.

Table 14– 4. Output for show igmp receiver-table

Field Description

VLAN VLAN that contains the multicast receiver ports. Ports are listed separately for

each VLAN.

Session IP address of the multicast group being received.

Port Physical port through which the MX switch can reach the receiver.

Receiver-IP IP address of the receiver.