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Step
Command
Remarks
4.
Configure the bandwidth and
the CT to be protected by the
bypass tunnel.
mpls te backup bandwidth
[
ct0
|
ct1
|
ct2
|
ct3
] {
bandwidth
|
un-limited
}
By default, the bandwidth and the
CT to be protected by the bypass
tunnel are not specified.
5.
Return to system view.
quit
N/A
6.
Enter interface view of the
egress interface of a primary
CRLSP.
interface
interface-type
interface-number
N/A
7.
Specify a bypass tunnel for
the protected interface (the
current interface).
mpls te fast-reroute
bypass-tunnel tunnel
tunnel-number
By default, no bypass tunnel is
specified for an interface.
Automatically setting up bypass tunnels
With auto FRR, if the PLR is the penultimate node of a primary CRLSP, the PLR does not create a
node-protection bypass tunnel for the primary CRLSP.
To configure auto FRR on the PLR:
Step
Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enter MPLS TE view.
mpls te
N/A
3.
Enable the auto FRR
function globally.
auto-tunnel backup
By default, the auto FRR function
is disabled globally.
4.
Specify an interface number
range for the automatically
created bypass tunnels.
tunnel-number min min-number
max max-number
By default, no interface number
range is specified, and the PLR
cannot set up a bypass tunnel
automatically.
5.
(Optional.) Configure the
PLR
to create only
link-protection bypass
tunnels.
nhop-only
By default, the PLR automatically
creates both a link-protection and
a node-protection bypass tunnel
for each of its primary CRLSPs.
Execution of this command
deletes all existing
node-protection bypass tunnels
automatically created for MPLS
TE auto FRR.
6.
(Optional.)
Configure a
removal timer for unused
bypass tunnels.
timers removal unused
seconds
By default, a bypass tunnel is
removed after it is unused for
3600 seconds.
7.
(Optional.) Return to system
view.
quit
N/A
8.
(Optional.) Enter interface
view.
interface
interface-type
interface-number
N/A
9.
(Optional.) Disable the auto
FRR
function
on the
interface.
mpls te auto-tunnel backup
disable
By default, the auto FRR function
is enabled on all RSVP-enabled
interfaces after it is enabled
globally.
Execution of this command
deletes all existing bypass tunnels
automatically created on the
interface for MPLS TE auto FRR.