Multicast Feature Support of S Series Switches
Introduction
This chapter describes the support of S series switches for common Layer 2 multicast features. For more information about IP multicast feature support and how to configure these features, see the Huawei S Series Switches Configuration Guide - IP Multicast.
IGMP Snooping Feature Support of S Series Switches
Common Layer 2 multicast features include IGMP snooping features and multicast VLAN. The following table lists the Layer 2 multicast features supported by S series switches.
Feature |
Supported By |
Default Setting |
Configuration Command |
|---|---|---|---|
IGMP snooping |
All switch models |
Disabled |
igmp-snooping enable |
IGMP snooping V3 |
All switch models |
IGMP snooping can process IGMPv1 and IGMPv2 messages. |
igmp-snooping version version |
IGMP snooping querier |
All switch models |
Disabled |
igmp-snooping querier enable |
IGMP snooping proxy |
All switch models |
Disabled |
igmp-snooping proxy |
IGMP snooping - Fast leave of member ports |
All switch models |
Disabled |
igmp-snooping prompt-leave [ group-policy acl-number ] |
IGMP snooping - Multicast group policy |
All switch models |
Not configured |
igmp-snooping group-policy acl-number [ version version-number ] |
IGMP snooping - Limit on the number of multicast entries learned by an interface |
All switch models |
Not configured |
igmp-snooping group-limit group-limit vlan { vlan-id1 [ to vlan-id2 ] } &<1-10> |
Multicast VLAN |
All models except the S2700SI and S2710SI |
Disabled |
multicast-vlan enable |
- When the version of IGMP messages that IGMP snooping can process is set to IGMPv3:
- The default Layer 2 multicast forwarding mode of the switch cannot be changed.
- The following switch models forward multicast data by looking up the forwarding table according to the VLAN ID and group address: S2700SI, S2710SI, S2720EI, S2750EI, S3700SI, S5700LI, S5700S-LI, S5700-C-LI, S5700-X-LI, S5720LI, S5720S-LI, S5700SI, S6720LI, S6720S-LI, S5720SI, S5720I-SI, S5720S-SI, S5730SI, S5730S-EI, S6720SI, S6720S-SI
- On a switch, except those using MAC address-based forwarding as the default Layer 2 multicast forwarding mode, a VLAN cannot be configured as a multicast VLAN after the multicast data forwarding mode in the VLAN is set to MAC address-based forwarding using the l2-multicast forwarding-mode command.