Igmp Snooping Configuration Example - Lenovo ThinkSystem NE2552E Application Manual

IGMP Snooping Configuration Example

1. Configure port and VLAN membership on the switch.
2. Add VLANs to IGMP Snooping and enable IGMP Snooping.
3. Enable IGMPv3 Snooping (optional).
4. Enable IGMP.
5. View dynamic IGMP information.
NE2552E# show ip igmp groups
Total entries: 5
Note: The <Total IGMP groups> number is computed as
Note: Local groups (224.0.0.x) are not snooped/relayed and will not appear.
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NE2552E Application Guide for ENOS 8.4
This section provides steps to configure IGMP Snooping on the NE2552E, using the
Command‐Line Interface (CLI).
NE2552E(config)# ip igmp snoop vlan 1
NE2552E(config)# ip igmp snoop enable
NE2552E(config)# ip igmp snoop igmpv3 enable
NE2552E(config)# ip igmp enable
To display information about IGMP Groups:
Total IGMP groups: 2
the number of unique (Group, Vlan) entries!
Source Group
------------ ----------- ---- ------ --------
10.1.1.1 232.1.1.1
10.1.1.5 232.1.1.1
* 232.1.1.1
10.10.10.43 235.0.0.1
* 235.0.0.1
To display information about Mrouters learned by the switch:
NE2552E# show ip igmp mrouter
Total entries: 3 Total number of dynamic mrouters: 2
Total number of installed static mrouters : 1
SrcIP VLAN
------------- ------- -------
10.1.1.1 2
10.1.1.5 2
10.10.10.43 9
Note: If IGMP Snooping v1/v2 is enabled and IGMPv3 Snooping is disabled, the
output of IGMPv3 reports and queries show some items as IGMPv3 (V3), though
they retain v2 behavior. For example, the Source IPv4 address is not relevant for
v2 entries.
(Turn on IGMP)
VLAN Port Version
2 4 V3
2 4 V3
2 4 V3
9 1 V3
9 1 V3
Port Version Expires
--------- --------
EXT18 V3 4:09
EXT19 V2 4:09
EXT10 V2 static
Mode Expires Fwd
----- ------- ---
INC 4:16 Yes
INC 4:16 Yes
INC - No
EXC 2:26 No
EXC - Yes
MRT QRV QQIC
------- ---- ----
128 2
125 -
- -
125
-
-