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Implementing BGP on Cisco IOS XR Software
How to Implement BGP on Cisco IOS XR Software
RC-115
Cisco IOS XR Routing Configuration Guide
OL-14356-01
Configuring an MDT Address Family Session in BGP
Perform this task to configure an IPv4 multicast distribution tree (MDT) subaddress family identifier
(SAFI) session in BGP.
Note The MDT address-family session is configured on provider edge (PE) routers to establish VPN peering
sessions with customer edge (CE) routers and to establish inter-AS multicast VPN peering sessions. The
MDT address family must be configured on each participating PE router.
The MDT SAFI is a transitive, multicast-capable connector attribute that is defined as an IPv4 address
family in BGP. The MDT SAFI is designed to support inter-autonomous system (inter-AS) VPN peering
sessions.
SUMMARY STEPS
1. configure
2. router bgp as-number
3. address-family {ipv4 unicast | ipv4 multicast | ipv4 tunnel | ipv6 unicast | ipv6 multicast | vpnv4
unicast | vpnv6 unicast}
4. exit
Step 5
keychain name
Example:
RP/0/RP0/CPU0:router(config-bgp-nbr)# keychain
kych_a
Configures keychain-based authentication.
Step 6
end
or
commit
Example:
RP/0/RP0/CPU0:router(config-bgp-nbr)# end
or
RP/0/RP0/CPU0:router(config-bgp-nbr)# commit
Saves configuration changes.
• When you issue the end command, the system prompts
you to commit changes:
Uncommitted changes found, commit them before
exiting(yes/no/cancel)?
[cancel]:
–
Entering yes saves configuration changes to the
running configuration file, exits the configuration
session, and returns the router to EXEC mode.
–
Entering no exits the configuration session and
returns the router to EXEC mode without
committing the configuration changes.
–
Entering cancel leaves the router in the current
configuration session without exiting or
committing the configuration changes.
• Use the commit command to save the configuration
changes to the running configuration file and remain
within the configuration session.
Command or Action Purpose