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Auto FRR configuration example
Network requirements
Use RSVP-TE to set up a primary CRLSP that explicitly uses path Switch A—Switch B—Switch
C—Switch D.
Configure auto FRR on Switch B to automatically set up bypass tunnels for the primary CRLSP.
Configure BFD for RSVP-TE between Switch B and Switch C. When the link between Switch B and
Switch C fails, BFD can detect the failure quickly and notify RSVP-TE of the failure, so RSVP-TE can
switch traffic to the bypass tunnel.
Figure 33 Network diagram
Table 8 Interface and IP address assignment
Switch A Loop0 1.1.1.1/32 Switch E Loop0 5.5.5.5/32
Vlan-int1 2.1.1.1/24 Vlan-int4 3.2.1.2/24
Switch B Loop0 2.2.2.2/32 Vlan-int5 3.4.1.1/24
Vlan-int1 2.1.1.2/24 Switch C Loop0 3.3.3.3/32
Vlan-int2 3.1.1.1/24 Vlan-int3 4.1.1.1/24
Vlan-int4 3.2.1.1/24 Vlan-int2 3.1.1.2/24
Vlan-int6 3.3.1.1/24 Vlan-int5 3.4.1.2/24
Switch D Loop0 4.4.4.4/32 Switch F Loop0 6.6.6.6/32
Vlan-int3 4.1.1.2/24 Vlan-int6 3.3.1.2/24
Vlan-int7 4.2.1.2/24 Vlan-int7 4.2.1.1/24
Switch A Switch B Switch C
Switch D
Switch E
Vlan-int1
Loop0
Loop0
Loop0
Loop0
Vlan-int1
Vlan-int2
Vlan-int2
Vlan-int3
Vlan-int3
Vlan-int4
Vlan-int4
Primary CRLSP
Bypass Tunnel
Vlan-int5
Vlan-int5
Loop0
Switch F
Loop0
Vlan-int6
Vlan-int6 Vlan-int7
Vlan-int7