Cisco ASR 9000 Series Routing Configuration Guide

Example:
!Router A
RP/0/0/CPU0:RouterA(config)# router isis ring
RP/0/0/CPU0:RouterA(config-isis)# net 00.0000.0000.0001.00
RP/0/0/CPU0:RouterA(config-isis)# address-family ipv4 unicast
RP/0/0/CPU0:RouterA(config-isis)# metric-style wide
RP/0/0/CPU0:RouterA(config-isis-af)# exit
!Router B
RP/0/0/CPU0:RouterB(config)# router isis ring
RP/0/0/CPU0:RouterB(config-isis)# net 00.0000.0000.0002.00
RP/0/0/CPU0:RouterB(config-isis)# address-family ipv4 unicast
RP/0/0/CPU0:RouterB(config-isis-af)# exit
!Router C
RP/0/0/CPU0:RouterC(config)# router isis ring
RP/0/0/CPU0:RouterC(config-isis)# net 00.0000.0000.0003.00
RP/0/0/CPU0:RouterC(config-isis)# address-family ipv4 unicast
RP/0/0/CPU0:RouterA(config-isis)# metric-style wide
RP/0/0/CPU0:RouterC(config-isis-af)# exit
Step 3
Configure IPv4 and IPv6 address families on the loopback interfaces of Routers A, B, and C.
Example:
RP/0/0/CPU0:Router(config-isis)# interface loopback0
RP/0/0/CPU0:Router(config-isis-if)# address-family ipv4 unicast
RP/0/0/CPU0:Router(config-isis-if-af)# exit
RP/0/0/CPU0:Router(config-isis-if)# address-family ipv6 unicast
RP/0/0/CPU0:Router(config-isis-if-af)# exit
RP/0/0/CPU0:Router(config-isis-if)# exit
RP/0/0/CPU0:Router(config-isis)#
Step 4
Configure the link metrics on the router interfaces.
Example:
! Configuration for Router A Interface GigabitEthernet 0/0/0/0 with Router B is shown here. Similarly,
configure other router interfaces.
RP/0/0/CPU0:RouterA(config-isis)# interface GigabitEthernet 0/0/0/0
RP/0/0/CPU0:RouterA(config-isis-if)# address-family ipv4 unicast
RP/0/0/CPU0:RouterA(config-isis-if-af)# metric 10
RP/0/0/CPU0:RouterA(config-isis-if-af)# exit
RP/0/0/CPU0:RouterA(config-isis-if)# address-family ipv6 unicast
RP/0/0/CPU0:RouterA(config-isis-if-af)# exit
RP/0/0/CPU0:RouterA(config-isis-if)# exit
RP/0/0/CPU0:RouterA(config-isis)#
Step 5
Confirm your configuration by viewing the route prefixes on Routers A, B, and C.
Example:
! The outputs for Router A are shown here. Similarly, view the outputs for Routers B and C.
RP/0/0/CPU0:RouterA# show route
Tue Oct 13 13:55:18.342 PST
Codes: C - connected, S - static, R - RIP, B - BGP, (>) - Diversion path
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP
i - ISIS, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, su - IS-IS summary null, * - candidate default
U - per-user static route, o - ODR, L - local, G - DAGR, l - LISP
A - access/subscriber, a - Application route
M - mobile route, (!) - FRR Backup path
Gateway of last resort is not set
Cisco ASR 9000 Series Aggregation Services Router Routing Configuration Guide, Release 5.3.x
398
Implementing IS-IS
Example: Configuring IS-IS To Handle Router Overload

Cisco ASR 9000 Series Specifications

General

Series	ASR 9000
Category	Network Router
Modular Design	Yes
Redundancy	Yes (Hardware and Software)
Operating System	Cisco IOS XR
Interfaces/Ports	10G, 40G, 100G, 400G Ethernet
Expansion Slots	Varies by model
Routing Protocol	BGP, OSPF, IS-IS, EIGRP
Management	CLI, SNMP, NETCONF
Power Supply	Redundant
Port Density	Varies by model
Power Supply Options	AC, DC
Memory	Varies by model
Storage	Varies by model
Dimensions	Varies by model
Weight	Varies by model