Setting The Dscp Value For Igmp Messages; Displaying And Maintaining Igmp Snooping - H3C S5500-EI Configuration Manual

Enabling the IGMP snooping host tracking function in a VLAN
Step
1. Enter system view.
2. Enter VLAN view.
3. Enable the IGMP snooping
host tracking function in the
VLAN.

Setting the DSCP value for IGMP messages

IPv4 uses an eight-bit ToS field to identify type of service for IP packets. As defined in RFC 2474, the first
six bits contains the DSCP priority for prioritizing traffic in the network and the last two bits are reserved.
This configuration applies to only the IGMP messages that the local switch generates when the switch or
its port acts as a member host, rather than those forwarded ones.
To set the DSCP value for IGMP messages:
Step
1. Enter system view.
2. Enter IGMP-snooping view.
3. Set the DSCP value for IGMP
messages.

Displaying and maintaining IGMP snooping

Task
Display IGMP snooping group
information.
Display information about the hosts
tracked by IGMP snooping.
Display static multicast MAC
address entries.
Display statistics for the IGMP
messages learned by IGMP
snooping.
Command
system-view
vlan vlan-id
igmp-snooping host-tracking
Command
system-view
igmp-snooping
dscp dscp-value
Command
display igmp-snooping group
[ vlan vlan-id ] [ slot slot-number ]
[ verbose ] [ | { begin | exclude |
include } regular-expression ]
display igmp-snooping host vlan
vlan-id group group-address
[ source source-address ] [ slot
slot-number ] [ | { begin | exclude
| include } regular-expression ]
display mac-address
[ mac-address [ vlan vlan-id ] |
[ multicast ] [ vlan vlan-id ]
[ count ] ] [ | { begin | exclude |
include } regular-expression ]
display igmp-snooping statistics [ |
{ begin | exclude | include }
regular-expression ]
39
Remarks
N/A
N/A
Disabled by default
Remarks
N/A
N/A
By default, the DSCP value in IGMP
messages is 48.
Remarks
Available in any view.
Available in any view.
Available in any view.
Available in any view.