Configuration Guide Vol. 1


3.4.5 IGMP snooping/MLD snooping

The following table describes the capacity limits for IGMP snooping.

Table 3-17 Housing conditions for IGMP snooping

Item

Maximum number

Number of configurable VLANs

64

VLAN ports*1

512

Number of registered entries*2*3

1024

Multicast router auto learn count

32

#1

The total number of ports in which IGMP snooping is active (sum of the ports within IGMP snooping-enabled VLANs). For example, if IGMP snooping is enabled in 16 VLANs, each of which has 10 ports, there will be 160 IGMP snooping-enabled ports.

#2

The maximum number of registered entries, including multicast addresses for control packets used by the routing protocols. Such entries are registered on receipt of a group participation request for a control packet. When a VLAN uses multiple routing protocols concurrently, the number of registered entries corresponds to the number of multicast addresses used by the control packet of the routing protocols concerned.

#3

This is the sum of the multicast MAC addresses learned by VLAN.

The following table describes the capacity limits for MLD snooping.

Table 3-18 Housing conditions for MLD snooping

Item

Maximum number

Number of configurable VLANs

32

VLAN ports*1

512

Number of registered entries*2*3

500

#1

The total number of ports in which MLD snooping is active (sum of the ports within MLD snooping-enabled VLANs). For example, if MLD snooping is enabled in 16 VLANs, each of which has 10 ports, there will be 160 IGMP snooping-enabled ports.

#2

The maximum number of registered entries, including multicast addresses for control packets used by the routing protocols. Such entries are registered on receipt of a group participation request for a control packet. When a VLAN uses multiple routing protocols concurrently, the number of registered entries corresponds to the number of multicast addresses used by the control packet of the routing protocols concerned.

#3

This is the sum of the multicast MAC addresses learned by VLAN.