Configuring Ps Attributes For The Protection Group - HP MSR2000 Configuration Manual

Step
8. (Optional.)
expected bandwidth of the
tunnel bundle interface.
9. (Optional.) Specify a service
card for forwarding the traffic
on the tunnel bundle interface
(MSR4000).
10. (Optional.) Restore the default
settings for the tunnel bundle
interface.
11. (Optional.) Bring up the tunnel
bundle interface.

Configuring PS attributes for the protection group

By default, when the working tunnel fails, traffic is immediately switched from the working tunnel to the
protection tunnel to avoid traffic interruption. When the working tunnel recovers, traffic is immediately
switched from the protection tunnel to the working tunnel. On an unstable network where the working
and protection tunnels are up and down frequently, immediate switchovers might affect traffic forwarding
and burden the device.
To resolve the problem, use the following methods:
• Delay switching—After the working tunnel fails, traffic is switched to the protection tunnel when the
switching holdoff timer expires. Traffic is not switched to the protection tunnel if the working tunnel
recovers within the holdoff time.
Disable reverting—After the working tunnel recovers, the protection group continues to use the
•
protection tunnel as long as the protection group is operating correctly.
Delay reverting—After the working tunnel recovers, the wait timer starts. If the working tunnel is still
•
operating correctly when the wait time expires, traffic is switched from the protection tunnel to the
working tunnel.
To configure attributes for the protection group:
Step
1. Enter system view.
2. Enter the view of a tunnel
bundle interface in protection
switching mode.
3. Configure the switching holdoff
time when a working tunnel
failure is detected.
4. Specify whether to switch traffic
from the protection tunnel to the
working
working tunnel recovers, and
the wait time for the switchover.
Command
Configure the
bandwidth bandwidth-value
service slot slot-number
default
undo shutdown
Command
system-view
interface tunnel-bundle number
[ protection { oneplusone |
onetoone } ]
protection holdoff holdoff-time
protection revertive { never | wtr
tunnel when the
[ wtr-time ] }
436
Remarks
By default, the expected
bandwidth is 64 kbps.
By default, no service card is
specified.
N/A
By default, the tunnel bundle
interface is up.
Remarks
N/A
N/A
By default, the hold time is 0
seconds. When the working tunnel
fails, traffic is immediately switched
from the working tunnel to the
protection tunnel.
By default, when the working tunnel
recovers, traffic is immediately
switched from the protection tunnel
to the working tunnel.