Specifying The Md Source Interface; Configuring Mdt Switchover Parameters - HP 6125XLG Ip Multicast Configuration Manual

Step
1. Enter system view.
2. Enter MD view.
3. Specify
address.

Specifying the MD source interface

The MTI uses the IP address of the MD source interface as the source address to encapsulate the VPN
multicast packets. The IP address of the MD source interface must be the same as the source address used
for establishing BGP peer relationship. Otherwise, correct routing information cannot be obtained.
Perform the following configuration on the PE.
To specify the MD source interface:
Step
1. Enter system view.
2. Enter MD view.
3. Specify
interface.

Configuring MDT switchover parameters

To avoid frequent switching of multicast traffic between the default-MDT and the data-MDT, you can
specify a data-delay period and a data-holddown period.
• MDT switchover does not take place immediately after the source-side PE receives the first multicast
packet of the VPN that has passed the ACL rule filtering. Instead, the PE starts a data delay timer.
If it keeps receiving multicast packets for the VPN before the timer expires, a switchover to data-MDT
takes place. Otherwise, the default-MDT is still used for multicast forwarding.
Likewise, a backward switching does not take place immediately after the source-side PE stops
•
receiving the multicast packet of the VPN. Instead, the PE starts a data holddown timer. If it does not
receive any multicast packets of the VPN before the timer expires, a switchover to default-MDT takes
place. Otherwise, the data-MDT is still used for multicast forwarding.
Perform the following configuration on the PE.
To configure MDT switchover parameters:
Step
1. Enter system view.
2. Enter MD view.
Command
system-view
multicast-domain vpn-instance
vpn-instance-name
a default-group
default-group group-address
Command
system-view
multicast-domain vpn-instance
vpn-instance-name
the MD source
source interface-type
interface-number
Command
system-view
multicast-domain vpn-instance
vpn-instance-name
183
Remarks
N/A
N/A
By default, no default-group
address is specified.
Remarks
N/A
N/A
By default, no IP address of the MD
source interface is specified.
Remarks
N/A
N/A