R0106-HP MSR Router Series MPLS Configuration Guide(V7)

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Ste
p
Command Remarks
8. (Optional.) Configure the
expected bandwidth of the
tunnel bundle interface.
bandwidth bandwidth-value
By default, the expected
bandwidth is 64 kbps.
9. (Optional.) Specify a service
card for forwarding the traffic
on the tunnel bundle interface
(MSR4000).
service slot slot-number
By default, no service card is
specified.
10. (Optional.) Restore the default
settings for the tunnel bundle
interface.
default N/A
11. (Optional.) Bring up the tunnel
bundle interface.
undo shutdown
By default, the tunnel bundle
interface is up.
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:
Ste
p
Command Remarks
1. Enter system view.
system-view N/A
2. Enter the view of a tunnel
bundle interface in protection
switching mode.
interface tunnel-bundle number
[ protection { oneplusone |
onetoone } ]
N/A
3. Configure the switching holdoff
time when a working tunnel
failure is detected.
protection holdoff holdoff-time
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.
4. Specify whether to switch traffic
from the protection tunnel to the
working tunnel when the
working tunnel recovers, and
the wait time for the switchover.
protection revertive { never | wtr
[ wtr-time ] }
By default, when the working tunnel
recovers, traffic is immediately
switched from the protection tunnel
to the working tunnel.