Cisco ASR 9000 Series Routing Configuration Guide

SUMMARY STEPS
1.
configure
2.
route-policy route-policy-name
3.
if conditional-expression then action-statement else
4.
pass endif
5.
end-policy
6.
router bgp as-number
7.
address-family {ipv4 {unicast | multicast} | ipv6 {unicast | multicast | l2vpn vpls-vpws | vpnv4 unicast
| vpnv6 unicast }
8.
additional-paths receive
9.
additional-paths send
10.
additional-paths selection route-policy route-policy-name
11.
commit
DETAILED STEPS
PurposeCommand or Action
configure
Step 1
Defines the route policy and enters route-policy
configuration mode.
route-policy route-policy-name
Example:
RP/0/RSP0/CPU0:router (config)#route-policy
add_path_policy
Step 2
Decides the actions and dispositions for the given
route.
if conditional-expression then action-statement else
Example:
RP/0/RSP0/CPU0:router (config-rpl)#if community
matches-any (*) then
Step 3
set path-selection all advertise
else
Passes the route for processing and ends the if
statement.
pass endif
Example:
RP/0/RSP0/CPU0:router(config-rpl-else)#pass
RP/0/RSP0/CPU0:router(config-rpl-else)#endif
Step 4
Ends the route policy definition of the route policy
and exits route-policy configuration mode.
end-policy
Example:
RP/0/RSP0/CPU0:router(config-rpl)#end-policy
Step 5
Specifies the autonomous system number and enters
the BGP configuration mode, allowing you to
configure the BGP routing process.
router bgp as-number
Example:
RP/0/RSP0/CPU0:router(config)#router bgp 100
Step 6
Cisco ASR 9000 Series Aggregation Services Router Routing Configuration Guide, Release 5.3.x
164
Implementing BGP
Configuring BGP Additional Paths

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