113
Affinity Attr/Mask : 0/0
Explicit Path : pri-path
Backup Explicit Path : -
Metric Type : TE
Record Route : Enabled Record Label : Enabled
FRR Flag : Enabled Bandwidth Protection : Disabled
Backup Bandwidth Flag: Disabled Backup Bandwidth Type: -
Backup Bandwidth : -
Bypass Tunnel : No Auto Created : No
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 : -
display mpls te tunnel-interface
command immediately after an FRR, you can
see two CRLSPs in up state. This is because FRR uses the
make-before-break
mechanism to set
up a new LSP, and the old LSP is deleted after the new one has been established for a while.
# Execute the display mpls lsp command on Switch B. The output shows that the bypass tunnel is
in use.
[SwitchB] display mpls lsp
FEC Proto In/Out Label Interface/Out NHLFE
1.1.1.1/4/61400 RSVP 1136/3 Tun5
2.2.2.2/5/30914 RSVP -/1149 Vlan4
3.2.1.2 Local -/- Vlan4
# On the PLR, configure the interval for selecting an optimal bypass tunnel as 5 seconds.
[SwitchB] mpls te
[SwitchB-te] fast-reroute timer 5
[SwitchB-te] quit
# On the PLR, bring up the protected interface VLAN-interface 2.
[SwitchB] interface vlan-interface 2
[SwitchB-Vlan-interface2] undo shutdown
# On Switch A, execute the display interface tunnel 4 command to display information about the
primary CRLSP. The output shows that the tunnel interface is in up state. (Details not shown.)
# Wait for about 5 seconds, execute the display mpls lsp verbose command on Switch B. The
output shows that Tunnel 5 is bound to interface VLAN-interface 2 but not in use. (Details not
shown.)
# Execute the display ip routing-table command on Switch A. The output shows a static route entry
with interface Tunnel4 as the output interface. (Details not shown.)
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