Chapter 50
| IP Routing Commands
Border Gateway Protocol (BGPv4)
– 1116 –
neighbor
capability dynamic
This command configures dynamic negotiation of capabilities between
neighboring routers. Use the no form to disable this feature.
Syntax
[no] neighbor {ip-address | group-name} capability dynamic
ip-address – IP address of a neighbor.
group-name – A BGP peer group containing a list of neighboring routers
configured with the neighbor peer-group command.
Command Mode
Router Configuration
Default Setting
Disabled
Command Usage
â—† BGP normally requires a router to terminate a peering session if it receives an
OPEN message with an unrecognized optional parameter. This command
allows new capabilities to be introduced gracefully, without requiring a peering
session to be terminated if a negotiated capability is unknown.
â—† With dynamic negotiation of capabilities is enabled, the capabilities by both
sides are negotiated in OPEN messages, with the partner responding if a
capability is supported or sending a NOTIFICATION if not.
Example
Console(config-router)#neighbor 10.1.1.64 capability dynamic
Console(config-router)#
neighbor capability
orf prefix-list
This command configures the negotiation of outbound route filter (ORF)
capabilities with a neighboring router. Use the no form to disable negotiation.
Syntax
[no] neighbor {ip-address | group-name} orf prefix-list {both | receive | send}
ip-address – IP address of a neighbor.
group-name – A BGP peer group containing a list of neighboring routers
configured with the neighbor peer-group command.
both – Capability to send and receive the ORF to/from this neighbor.
receive – Capability to receive the ORF from this neighbor.
send – Capability to send the ORF to this neighbor.
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