129
Tunnel name: Tunnel3
Destination: 3.3.3.9 Source: 1.1.1.9
Tunnel ID: 3 LSP ID: 30107
LSR type: Ingress Direction: Unidirectional
Setup priority: 7 Holding priority: 7
In-Label: - Out-Label: 1150
In-Interface: - Out-Interface: Vlan4
Nexthop: 30.1.1.2 Exclude-any: 0
Include-Any: 0 Include-all: 0
Mean rate (CIR): 0 kbps Mean burst size (CBS): 1000.00 bytes
Path MTU: 1500 Class type: CT0
RRO number: 6
30.1.1.1/32 Flag: 0x00 (No FRR)
30.1.1.2/32 Flag: 0x00 (No FRR/In-Int)
4.4.4.9/32 Flag: 0x20 (No FRR/Node-ID)
40.1.1.1/32 Flag: 0x00 (No FRR)
40.1.1.2/32 Flag: 0x00 (No FRR/In-Int)
3.3.3.9/32 Flag: 0x20 (No FRR/Node-ID)
Fast Reroute protection: None
# Trace the path that MPLS TE tunnel 3 traverses. The output shows that the used CRLSP is the one
that traverses Switch B.
[SwitchA] tracert mpls te tunnel 3
MPLS trace route TE tunnel Tunnel3
TTL Replier Time Type Downstream
0 Ingress 10.1.1.2/[1147]
1 10.1.1.2 1 ms Transit 20.1.1.2/[3]
2 20.1.1.2 2 ms Egress
# Shut down interface VLAN-interface 2 on Switch B, and then tracert tunnel 3. The output shows
that packets are forwarded on the CRLSP that traverses Switch D.
[SwitchA] tracert mpls te tunnel 3
MPLS trace route TE tunnel Tunnel3
TTL Replier Time Type Downstream
0 Ingress 30.1.1.2/[1148]
1 30.1.1.2 2 ms Transit 40.1.1.2/[3]
2 40.1.1.2 3 ms Egress
# Verify that only one CRLSP exists on Switch A.
[SwitchA] display mpls lsp
FEC Proto In/Out Label Interface/Out NHLFE
1.1.1.9/3/34313 RSVP -/1150 Vlan4
30.1.1.2 Local -/- Vlan4
Tunnel3 Local -/- NHLFE1029
# Execute the display ip routing-table command on Switch A. The output shows a static route entry
with interface Tunnel 3 as the output interface. (Details not shown.)
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