HP MSR ASM, Руководство по настройке

Страница: 408 / 493

396
Enabling MLD snooping fast-leave processing globally
Step Command Remarks
1. Enter system view.
system-view N/A
2. Enter MLD-snooping view.
mld-snooping N/A
3. Enable MLD snooping
fast-leave processing.
fast-leave [ vlan vlan-list ] Disabled by default.
Enabling MLD snooping fast-leave processing on a port
Step Command Remarks
1. Enter system view.
system-view N/A
2. Enter Layer 2 Ethernet
interface view or Layer 2
aggregate interface view or
enter 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 method.
3. Enable MLD snooping
fast-leave processing.
mld-snooping fast-leave [ vlan
vlan-list ]
Disabled by default.
Disabling a port from becoming a dynamic router port
The following problems might exist in a multicast access network:
•
After receiving an MLD general query or IPv6 PIM hello message from a connected host, a router
port becomes a dynamic router port. Before its timer expires, this dynamic router port receives all
multicast packets within the VLAN that the port belongs to and forwards them to the host, affecting
normal multicast reception of the host.
•
In addition, the MLD general query and IPv6 PIM hello message that the host sends affects the
multicast routing protocol state on Layer 3 devices, such as the MLD querier or DR election, and
might further cause network interruption.
To solve these problems, you can disable the router port from becoming a dynamic router port after the
port receives an MLD general query or IPv6 PIM hello message, so as to enhance network security and
the control over multicast users.
To disable a port from becoming a dynamic router port:
Step Command Remarks
1. Enter system view.
system-view N/A
2. Enter Layer 2 Ethernet
interface view or Layer 2
aggregate interface view
or enter 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 method.