Specifications

mpls forwarding bgp
MP-166
Cisco IOS Multiprotocol Label Switching Command Reference
January 2010
mpls forwarding bgp
To enable Multiprotocol Label Switching (MPLS) nonstop forwarding on an interface that uses Border
Gateway Protocol (BGP) as the label distribution protocol, use the mpls forwarding bgp command in
interface configuration mode. To disable MPLS nonstop forwarding on the interface, use the no form of
this command.
mpls forwarding bgp
no mpls forwarding bgp
Syntax Description This command has no arguments or keywords.
Command Default MPLS nonstop forwarding is not enabled on the interface.
Command Modes Interface configuration
Command History
Usage Guidelines Configure this command on the interfaces of the BGP peers that send and receive labels. If this command
is
not configured on an interface and a stateful switchover occurs, packets received from an interface are
dropped until the BGP session is established in the new route processor.
Issue this command to enable nonstop forwarding on interfaces that use BGP to distribute labels for the
f
ollowing types of VPNs:
• MPLS VPN—Carrier Supporting Carrier—IPv4 BGP Label Distribution
• MPLS VPN—Inter-AS—IPv4 BGP Label Distribution
Examples In the following examples, an interface is configured to save BGP labels in the event of a stateful
s
witchover:
Cisco 7000 Series Example
Router(config)# interface Pos1/0
Router(config-if)# mpls forwarding bgp
Release Modification
12.2(25)S This command was introduced.
12.2(28)SB This command was integrated into Cisco IOS Release 12.2(28)SB and
i
mplemented on the Cisco 10000 series router.
12.2(33)SRA This command was integrated into Cisco IOS Release 12.2(33)SRA.
12.2(33)SXH This command was integrated into Cisco IOS Release 12.2(33)SXH.