110
[SwitchB-Vlan-interface4] rsvp enable
[SwitchB-Vlan-interface4] quit
# Configure Switch C in the same way that Switch B is configured. Configure Switch D and
Switch E in the same way that Switch A is configured. (Details not shown.)
4. Configure an MPLS TE tunnel on Switch A, the ingress node of the primary CRLSP:
# Configure an explicit path for the primary CRLSP.
[SwitchA] explicit-path pri-path
[SwitchA-explicit-path-pri-path] nexthop 2.1.1.2
[SwitchA-explicit-path-pri-path] nexthop 3.1.1.2
[SwitchA-explicit-path-pri-path] nexthop 4.1.1.2
[SwitchA-explicit-path-pri-path] nexthop 4.4.4.4
[SwitchA-explicit-path-pri-path] quit
# Create MPLS TE tunnel interface Tunnel4 for the primary CRLSP.
[SwitchA] interface tunnel 4 mode mpls-te
[SwitchA-Tunnel4] ip address 10.1.1.1 255.255.255.0
# Specify the tunnel destination address as the LSR ID of Switch D.
[SwitchA-Tunnel4] destination 4.4.4.4
# Specify the tunnel signaling protocol as RSVP-TE.
[SwitchA-Tunnel4] mpls te signaling rsvp-te
# Specify the explicit path to be used as pri-path.
[SwitchA-Tunnel4] mpls te path preference 1 explicit-path pri-path
# Enable FRR for the MPLS TE tunnel.
[SwitchA-Tunnel4] mpls te fast-reroute
[SwitchA-Tunnel4] quit
# Execute the display interface tunnel command on Switch A. The output shows that the
tunnel interface Tunnel4 is up.
[SwitchA] display interface tunnel
Tunnel4 current state: UP
Line protocol current state: UP
Description: Tunnel3 Interface
The Maximum Transmit Unit is 64000
Internet Address is 9.1.1.1/24 Primary
Tunnel source unknown, destination 3.3.3.9
Tunnel bandwidth 64 (kbps)
Tunnel TTL 255
Tunnel protocol/transport CR_LSP
Last clearing of counters: Never
Last 300 seconds input rate: 0 bytes/sec, 0 bits/sec, 0 packets/sec
Last 300 seconds output rate: 1911 bytes/sec, 15288 bits/sec, 0 packets/sec
0 packets input, 0 bytes, 0 drops
1526 packets output, 22356852 bytes, 0 drops
# Execute the display mpls te tunnel-interface command on Switch A to display detailed
information about the MPLS TE tunnel.
[SwitchA] display mpls te tunnel-interface
Tunnel Name : Tunnel 4
Tunnel State : Up (Main CRLSP up, Shared-resource CRLSP down)
Tunnel Attributes :
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