Setting the 802.1p priority for IGMP messages
When congestion occurs on outgoing ports of the Layer 2 device, it forwards IGMP messages in their 802.1p priority order, from highest to lowest. You can assign a higher 802.1p priority to IGMP messages that are created or forwarded by the device.
You can set the 802.1p priority globally for all VLANs and VSIs in IGMP-snooping view or for a VLAN in VLAN view. For a VLAN, the VLAN-specific configuration takes priority over the global configuration.
Setting the 802.1p priority for IGMP messages globally
Step | Command | Remarks |
|---|---|---|
1. Enter system view. | system-view | N/A |
2. Enter IGMP-snooping view. | igmp-snooping | N/A |
3. Set the 802.1p priority for IGMP messages. | dot1p-priority priority | By default, the 802.1p priority for IGMP packets is not configured. For IGMP packets created by the device, the 802.1p priority is 0. For IGMP packets to be forwarded, the device does not change the 802.1p priority. |
Setting the 802.1p priority for IGMP messages in a VLAN
Step | Command | Remarks |
|---|---|---|
1. Enter system view. | system-view | N/A |
2. Enter VLAN view. | vlan vlan-id | N/A |
3. Set the 802.1p priority for IGMP messages in the VLAN. | igmp-snooping dot1p-priority priority | By default, the 802.1p priority for IGMP packets is not configured. For IGMP packets created by the device, the 802.1p priority is 0. For IGMP packets to be forwarded, the device does not change the 802.1p priority. |