Configuring The Bgp Cost Community - Cisco ASR 9000 Series Routing Configuration Manual

Implementing BGP
Command or Action
Step 6
Use one of these commands:
• send-community-ebgp
• send-extended-community-ebgp
Example:
RP/0/RSP0/CPU0:router(config-bgp-nbr-af)#
send-community-ebgp
or
RP/0/RSP0/CPU0:router(config-bgp-nbr-af)#
send-extended-community-ebgp
Step 7 commit

Configuring the BGP Cost Community

Perform this task to configure the BGP cost community.
BGP receives multiple paths to the same destination and it uses the best-path algorithm to decide which is the
best path to install in RIB. To enable users to determine an exit point after partial comparison, the cost
community is defined to tie-break equal paths during the best-path selection process.
Purpose
IPv4 address family mode supports these sub modes:
Refer the address-family (BGP) command in BGP Commands
module of Cisco ASR 9000 Series Aggregation Services Router
Routing Command Reference for more information on the Address
Family Submode support.
Specifies that the router send community attributes or extended
community attributes (which are disabled by default for eBGP
neighbors) to a specified eBGP neighbor.
Cisco ASR 9000 Series Aggregation Services Router Routing Configuration Guide, Release 5.3.x
Configuring the BGP Cost Community
• mvpn
• unicast
• labeled-unicast
• mdt
• multicast
• mvpn
• rt-filter
• tunnel
• unicast
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