R0106-HP MSR Router Series MPLS Configuration Guide(V7)
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Route Pinning : Disabled
Retry Limit : 10 Retry Interval : 2 sec
Reoptimization : Disabled Reoptimization Freq : -
Backup Type : None Backup LSP ID : -
Auto Bandwidth : Disabled Auto Bandwidth Freq : -
Min Bandwidth : - Max Bandwidth : -
Collected Bandwidth : -
5. Configure a bypass tunnel on Router B (the PLR):
# Configure an explicit path for the bypass tunnel.
[RouterB] explicit-path by-path
[RouterB-explicit-path-by-path] nexthop 3.2.1.2
[RouterB-explicit-path-by-path] nexthop 3.3.1.2
[RouterB-explicit-path-by-path] nexthop 3.3.3.3
[RouterB-explicit-path-by-path] quit
# Create MPLS TE tunnel interface Tunnel 5 for the bypass tunnel.
[RouterB] interface tunnel 5 mode mpls-te
[RouterB-Tunnel5] ip address 11.1.1.1 255.255.255.0
# Specify the tunnel destination address as LSR ID of Router C.
[RouterB-Tunnel5] destination 3.3.3.3
# Specify the tunnel signaling protocol as RSVP-TE.
[RouterB-Tunnel5] mpls te signaling rsvp-te
# Specify the explicit path to be used as by-path.
[RouterB-Tunnel5] mpls te path preference 1 explicit-path by-path
# Configure the bandwidth that the bypass tunnel can protect.
[RouterB-Tunnel5] mpls te backup bandwidth un-limited
[RouterB-Tunnel5] quit
# Bind the bypass tunnel to the protected interface.
[RouterB] interface gigabitethernet 2/1/2
[RouterB-GigabitEthernet2/1/2] mpls te fast-reroute bypass-tunnel tunnel 5
[RouterB-GigabitEthernet2/1/2] quit
# Execute the display interface tunnel command on Router B. The output shows that the tunnel
interface Tunnel5 is up. (Details not shown.)
6. Configure a static route on Router A to direct the traffic destined for subnet 4.1.1.0/24 to MPLS TE
tunnel 4.
[RouterA] ip route-static 4.1.1.2 24 tunnel 4 preference 1
Verifying the configuration
# Execute the display mpls lsp command on each router. The output shows the LSP entries. Router B and
Router C each have two CRLSPs. The bypass tunnel backs up the primary CRLSP.
[RouterA] display mpls lsp
FEC Proto In/Out Label Interface/Out NHLFE
1.1.1.1/4/48960 RSVP -/1245 GE2/1/1
2.1.1.2 Local -/- GE2/1/1
[RouterB] display mpls lsp
FEC Proto In/Out Label Interface/Out NHLFE
1.1.1.1/4/48960 RSVP 1245/3 GE2/1/2
Backup 1245/3 Tun5