Cisco NCS 6000 Series Configuration Manual page 371

Implementing IP Fast Reroute Loop-Free Alternate
Command or Action
Step 4
net net
Example:
RP/0/RP0/CPU0:router(config-isis)# net
47.0001.0000.0000.8888.00
Step 5 address-family {ipv4 | ipv6}
Example:
RP/0/RP0/CPU0:router(config-isis)# address-family
ipv4 unicast
Step 6
metric-style wide
Example:
RP/0/RP0/CPU0:router(config-isis-af)#metric-style
wide
Step 7 exit
Example:
RP/0/RP0/CPU0:router(config-isis-af)# exit
Step 8 interface Bundle-Ether bundle-id
Example:
RP/0/RP0/CPU0:router(config-isis)#
Bundle-Ether 9
Step 9
address-family {ipv4 | ipv6}
Example:
RP/0/RP0/CPU0:router(config-isis-if)#
address-family ipv4 unicast
Step 10
fast-reroute per-prefix
Example:
Purpose
Configures an IS-IS network entity (NET) for a routing
process.
[unicast | multicast] Specifies the IPv4 or IPv6 address family, and enters the
interface address family configuration mode.
Configures a router to generate and accept wide link
metrics only.
Exits router address family configuration mode, and resets
the router to router configuration mode.
Creates and names a new Ethernet link bundle.
interface
[unicast | multicast] Specifies the IPv4 or IPv6 address family, and enters
interface address family configuration mode.
Enables per-prefix FRR.
Routing Configuration Guide for Cisco NCS 6000 Series Routers, IOS XR Release 6.4.x
Configuring Fast Reroute Support
detects destinations within its area. Packets containing
destinations outside the area if any, are sent to the
nearest level-1-2 router in the area.
• The level-2-only keyword configures the software to
perform Level 2 (backbone) routing only, the router
only establishes Level 2 adjacencies. It is established
either with other Level 2-only routers or with
level-1-2 routers.
• The level-1-2 keyword configures the software to
perform both Level 1 and Level 2 routing. Both Level
1 and Level 2 adjacencies are established. The router
acts as a border router between the Level 2 backbone
and its Level 1 area.
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