H3C Technologies H3C S6800 Series Switches - Manual (Page 94)

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{
FRR protection type (whether or not to provide bandwidth protection for the primary CRLSP)
changes.
Manually configuring a bypass tunnel
The bypass tunnel setup method is the same as a normal MPLS TE tunnel. This section describes only
FRR-related configurations.
To configure a bypass tunnel on the PLR:
Step Command Remarks
1. Enter system view. system-view N/A
2. Enter tunnel interface view of
the bypass tunnel. interface tunnel tunnel-number
[ mode mpls-te ]
N/A
3. Specify the destination
address of the bypass tunnel. destination ip-address The bypass tunnel destination
address is the LSR ID of the MP.
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.