Lenovo Flex System Fabric CN4093, Application Manual

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CN4093 Application Guide for N/OS 8.4
IGMP Snooping Configuration Example
This section provides steps to configure IGMP Snooping on the CN4093, using the
Command ‐ Line Interface (CLI).
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.
To display information about IGMP Groups:
To display information about Mrouters learned by the switch:
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.
CN 4093(config)# ip igmp snoop vlan 1
CN 4093(config)# ip igmp snoop enable
CN 4093(config)# ip igmp snoop igmpv3 enable
CN 4093(config)# ip igmp enable
(Turn on IGMP)
CN 4093# show ip igmp groups
Total entries: 5 Total IGMP groups: 2
Note: The <Total IGMP groups> number is computed as
the number of unique (Group, Vlan) entries!
Note: Local groups (224.0.0.x) are not snooped/relayed and will not appear.
Source Group VLAN Port Version Mode Expires Fwd
------------ ----------- ---- ------ -------- ----- ------- ---
10.1.1.1 232.1.1.1 2 4 V3 INC 4:16 Yes
10.1.1.5 232.1.1.1 2 4 V3 INC 4:16 Yes
* 232.1.1.1 2 4 V3 INC - No
10.10.10.43 235.0.0.1 9 1 V3 EXC 2:26 No
* 235.0.0.1 9 1 V3 EXC - Yes
CN 4093# show ip igmp mrouter
Total entries: 3 Total number of dynamic mrouters: 2
Total number of installed static mrouters : 1
SrcIP VLAN Port Version Expires MRT QRV QQIC
------------- ------- ------- --------- -------- ------- ---- ----
10.1.1.1 2 EXT18 V3 4:09 128 2 125
10.1.1.5 2 EXT19 V2 4:09 125 - -
10.10.10.43 9 EXT10 V2 static - - -