H3C Technologies H3C SR8800 User Manual
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Backup Tunnel : -
Group Status : -
Oam Status : -
5.
Configure a bypass tunnel on Router B (the PLR)
# Create an explicit path for the bypass LSP.
[RouterB] explicit-path by-path
[RouterB-explicit-path-by-path] next hop 3.2.1.2
[RouterB-explicit-path-by-path] next hop 3.3.1.2
[RouterB-explicit-path-by-path] next hop 3.3.3.3
[RouterB-explicit-path-by-path] quit
# Create the bypass tunnel.
[RouterB] interface tunnel 5
[RouterB-Tunnel5] ip address 11.1.1.1 255.255.255.0
[RouterB-Tunnel5] tunnel-protocol mpls te
[RouterB-Tunnel5] destination 3.3.3.3
[RouterB-Tunnel5] mpls te tunnel-id 15
[RouterB-Tunnel5] mpls te path explicit-path by-path preference 1
# Configure the bandwidth that the bypass tunnel protects.
[RouterB-Tunnel5] mpls te backup bandwidth 10000
[RouterB-Tunnel5] mpls te commit
[RouterB-Tunnel5] quit
# Bind the bypass tunnel with the protected interface.
[RouterB] interface GigabitEthernet 3/1/2
[RouterB-GigabitEthernet3/1/2] mpls te fast-reroute bypass-tunnel tunnel 5
[RouterB-GigabitEthernet3/1/2] quit
# Perform the display interface tunnel command on Router B. You can find that Tunnel5 is up.
# Perform the display mpls lsp command on each router. You can find that two LSPs are traversing
Router B and Router C.
[RouterA] display mpls lsp
------------------------------------------------------------------
LSP Information: RSVP LSP
------------------------------------------------------------------
FEC In/Out Label In/Out IF Vrf Name
4.4.4.4/32 NULL/1024 -/GE3/1/1
[RouterB] display mpls lsp
------------------------------------------------------------------
LSP Information: RSVP LSP
------------------------------------------------------------------
FEC In/Out Label In/Out IF Vrf Name
4.4.4.4/32 1024/1024 GE3/1/1/GE3/1/2
3.3.3.3/32 NULL/1024 -/POS2/1/1
[RouterC] display mpls lsp
------------------------------------------------------------------
LSP Information: RSVP LSP
------------------------------------------------------------------
FEC In/Out Label In/Out IF Vrf Name
4.4.4.4/32 1024/3 GE3/1/2/GE3/1/1