ES3528MV2 Supports Multicast IP IGMP Snooping Follow
How to flow multicast traffic to all ports ?
By disabling IP IGMP snooping.
If IP IGMP Snooping function is disabled, SW1 will flood multicast traffic to all ports when a switch port receives broadcast, unknown unicast or multicast.
The command to disable IGMP Snooping function:
SW_1#config
SW_1(config)#no ip igmp snooping
After adjusting, PC1 and SW2 receive multicast traffic, but PC2 will not receive multicast traffic since SW2 is still IGMP Snooping enabled by default.
To check IGMP Snooping function status, use "show ip igmp snooping" command:
SW_1#show IP IGMP snooping
IGMP Snooping : Disabled
Router Port Expire Time : 300 s
Router Alert Check : Disabled
Router Port Mode : Forward
TCN Flood : Disabled
TCN Query Solicit : Disabled
Unregistered Data Flood : Disabled
802.1p Forwarding Priority : Disabled
Unsolicited Report Interval : 400 s
Version Exclusive : Disabled
Version : 2
Proxy Reporting : Disabled
Querier : Disabled
VLAN 1:
--------
IGMP Snooping : Enabled
IGMP Snooping Running Status : Inactive
Version : Using global Version (2)
Version Exclusive : Using global status (Disabled)
Immediate Leave : Disabled
Last Member Query Interval : 10 (unit: 1/10s)
Last Member Query Count : 2
General Query Suppression : Disabled
Query Interval : 125
Query Response Interval : 100 (unit: 1/10s)
Proxy Query Address : 0.0.0.0
Proxy Reporting : Using global status (Disabled)
Multicast Router Discovery : Disabled
VLAN Static Group Port
---- --------------- --------
To check/display the entries in multicast registration table, use "show ip igmp snooping group" command:
SW_1#show ip igmp snooping group
Bridge Multicast Forwarding Entry Count:0
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