H3C S5500-EI - Setting the 802.1 P Precedence for IGMP Messages; Configuring a Multicast User Control Policy

37
Ste
p
Command Remarks
2. Enter Layer 2 Ethernet
interface view, Layer 2
aggregate interface view, or
port group view.
• Enter Layer 2 Ethernet interface
view or Layer 2 aggregate
interface view:
interface interface-type
interface-number
• Enter port group view:
port-group manual
port-group-name
Use either command.
3. Enable multicast group
replacement.
igmp-snooping overflow-replace
[ vlan vlan-list ]
Disabled by default.
Setting the 802.1p precedence for IGMP messages
You can change the 802.1p precedence for IGMP messages so that they can be assigned higher
forwarding priority when congestion occurs on their outgoing ports.
Setting the 802.1p precedence for IGMP messages globally
Ste
p
Command Remarks
1. Enter system view.
system-view N/A
2. Enter IGMP-snooping view.
igmp-snooping N/A
3. Set the 802.1p precedence for
IGMP messages.
dot1p-priority priority-number
The default 802.1p precedence for
IGMP messages is 0.
Setting the 802.1p precedence for IGMP messages in a VLAN
Ste
p
Command Remarks
1. Enter system view.
system-view N/A
2. Enter VLAN view.
vlan vlan-id N/A
3. Set the 802.1p precedence for
IGMP messages in the VLAN.
igmp-snooping dot1p-priority
priority-number
The default 802.1p precedence for
IGMP messages is 0.
Configuring a multicast user control policy
Multicast user control policies are configured on access switches to allow only authorized users to receive
requested multicast traffic flows. This helps restrict users from ordering certain multicast-on-demand
programs.
In practice, a device first needs to perform authentication (802.1X authentication, for example) on
connected hosts through a RADIUS server. Then, the device uses the configured multicast user control
policy to perform multicast access control on authenticated users as follows: