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13.8.3.49 neighbor dont-capability-negotiate
Command: neighbor {<ip-address>|<TAG>} dont-capability-negotiate
no neighbor {<ip-address>|<TAG>} dont-capability-negotiate
Function:
Set to not perform capability negotiate in creating connections. The “
no
neighbor {<ip-address>|<TAG>} dont-capability-negotiate
” command cancels this
configuration.
Parameter: <ip-address>
: Neighbor IP address
<TAG>
: Name of the peer group
Default:
Capability negotiation performed
Command Mode:
BGP route mode and address-family mode
Usage Guide:
As the negotiation is the default, it can be disabled with this configuration
when it is known that the partner BGP version is old which don’t support capability
negotiation.
Example
: Last addition capability negotiation will not be realized in the connection by
configuring as follows.
Switch(config-router)#neighbor 10.1.1.64 dont-capability-negotiate
13.8.3.50 neighbor ebgp-multihop
Command: neighbor {<ip-address>|<TAG>} ebgp-multihop [<1-255>]
no neighbor {<ip-address>|<TAG>} ebgp-multihop [<1-255>]
Function:
Configures the EBGP neighbors can existing in different segment as well as
its hop count (TTL). The “
no neighbor {<ip-address>|<TAG>} ebgp-multihop
[<1-255>]
” set that the EBGP neighbors must be in the same segment
Parameter: <ip-address>
: Neighbor IP address
<TAG>
: Name of the peer group
<1-255>
: Allowed hop count
Default:
Must be in the same segment
Command Mode:
BGP route mode and address-family mode
Usage Guide:
Without this command, EBGP peers are required to be in the same
segment and after this command is configured, peer addresses may from different
segments. The allowed hop count can be configured and will be 255 if not.
Example:
Three device 10.1.1.64(AS100) and 11.1.1.120(AS300) connected respectively to the two
interface 10.1.1.66 and 10.1.1.100 of another device. IGP accessibilities of 10.1.1.64 and
11.1.1.120 on both side routes are ensured through static configuration. The neighbor
relationship is established only after both side are configured as follows:
on 10.1.1.64
Switch(config-router)#neighbor 11.1.1.120 ebgp-multihop
