120
Fast Reroute protection: Ready
FRR inner label: 3 Bypass tunnel: Tunnel50
IETF DS-TE configuration example
Network requirements
Switch A, Switch B, Switch C, and Switch D run IS-IS and all of them are Level-2 switches.
Use RSVP-TE to create a TE tunnel from Switch A to Switch D. Traffic of the tunnel belongs to CT 2,
and the tunnel needs a bandwidth of 4000 kbps.
The maximum bandwidth of the link that the tunnel traverses is 10000 kbps and the maximum
reservable bandwidth of the link is 10000 kbps. BC 1, BC 2, and BC 3 are 8000 kbps, 5000 kbps, and
2000 kbps.
Figure 34 Network diagram
Table 9 Interface and IP address assignment
Device
Interface
IP address
Device
Interface
IP address
Switch A
Loop0
1.1.1.9/32
Switch D
Loop0
4.4.4.9/32
Vlan-int1
10.1.1.1/24
Vlan-int3
30.1.1.2/24
Switch B
Loop0
2.2.2.9/32
Switch C
Loop0
3.3.3.9/32
Vlan-int1
10.1.1.2/24
Vlan-int3
30.1.1.1/24
Vlan-int2
20.1.1.1/24
Vlan-int2
20.1.1.2/24
Configuration procedure
1.
Configure IP addresses and masks for interfaces. (Details not shown.)
2.
Configure IS-IS to advertise interface addresses, including the loopback interface address:
# Configure Switch A.
<SwitchA> system-view
[SwitchA] isis 1
[SwitchA-isis-1] network-entity 00.0005.0000.0000.0001.00
[SwitchA-isis-1] quit
[SwitchA] interface vlan-interface 1
[SwitchA-Vlan-interface1] isis enable 1
[SwitchA-Vlan-interface1] isis circuit-level level-2
[SwitchA-Vlan-interface1] quit
Vlan-int1
Vlan-int1
Vlan-int2
Vlan-int2
Vlan-int3
Vlan-int3
Loop0
Loop0
Loop0
Loop0
Switch A
Switch B
Switch C
Switch D