R3102-R3103-HP 6600/HSR6600 Routers IP Multicast Configuration Guide

236
Ste
p
Command Remarks
2. Enter VPN instance view. ip vpn-instance vpn-instance-name N/A
3. Configure a share-group
address and an MTI binding.
multicast-domain share-group
group-address binding mtunnel
mtunnel-number
No share-group address or MTI
binding is configured.
Configuring MDT switchover parameters
In some cases, the traffic rate of the customer network multicast data might fluctuate around the MDT
switchover threshold. To avoid frequent switching of multicast traffic between the share-MDT and the
switch-MDT:
• MDT switchover does not take place immediately after the multicast traffic rate exceeds the
switchover threshold. It takes place after a switch-delay period has passed, during which the traffic
rate must keep higher than the switchover threshold.
• Likewise, a backward switching does not take place immediately after the multicast traffic rate
comes back under the MDT switchover threshold. It takes place after a switch-holddown period has
passed, during which the traffic rate must keep lower than the switchover threshold.
To configure MDT switchover parameters:
Ste
p
Command Remarks
1. Enter system view.
system-view N/A
2. Enter VPN instance view.
ip vpn-instance vpn-instance-name
N/A
3. Configure the
switch-group-pool address
range and the switchover
criteria.
multicast-domain
switch-group-pool
switch-group-pool { mask |
mask-length } [ acl acl-number ] *
By default, no switch-group-pool is
configured and multicast traffic is
never switched to a switch-MDT.
4. Configure the switch-delay
period.
multicast-domain switch-delay
switch-delay
Optional.
5 seconds by default.
5. Configure the
switch-holddown period.
multicast-domain holddown-time
interval
Optional.
60 seconds by default.
Enabling switch-group reuse logging
For a given VPN, if the number of VPN multicast streams to be switched to switch-MDTs exceeds the
number of addresses in the switch-group-pool, the VPN instance on the source-side PE device can reuse
the addresses in the address pool. With switch-group reuse logging enabled, the address reuse
information will be logged.
Configuration guidelines
• Attributed to the MD module, the group address reuse logging information has a severity level of
informational. For more information about the logging information, see Network Management and
Monitoring Configuration Guide.
• When switch-group reuse logging is enabled, the generated group address reuse logging
information will be sent to the information center, where you can configure the rules for outputting