3.4.6 IGMP snooping/MLD snooping
The following table describes the capacity limits for IGMP snooping.
|
Item |
Maximum number |
|---|---|
|
Number of configurable VLANs |
64 |
|
VLAN ports #1 |
512 |
|
Number of registered entries #2#3 |
1024 |
|
Number of IP addresssxNumber of ports #4 |
1024 |
- Note #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.
- Note #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.
- Note #3
-
When IGMP snooping is used with IPv4 or IPv6 multicast, this is the sum of multicast IP addresses learned by all VLANs. When IGMP snooping is not used with IPv4 or IPv6 multicast, this is the sum of the multicast MAC addresses learned by all VLANs.
- Note #4
-
This is the sum of the number of VLAN interfaces and the number of ports that can be handled by IP number NG VLAN. For example, if you configure 16 VLAN with one secondary address (two IP addresses), and each VLAN contains 10 ports, the number of ports is 320.
The following table describes the capacity limits for MLD snooping.
|
Item |
Maximum number |
|---|---|
|
Number of configurable VLANs |
32 |
|
VLAN ports #1 |
512 |
|
Number of registered entries #2#3 |
500 |
- Note #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.
- Note #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.
- Note #3
-
When MLD snooping is not used with IPv6 multicast, this is the sum of the multicast MAC addresses learned by each VLAN. When MLD snooping is used with IPv6 multicast, this is the sum of the multicast IP addresses learned by each VLAN.