Brocade Multi-Service IronWare Routing Configuration Guide (Supporting R05.6.00) User Manual

Page 76

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Multi-Service IronWare Routing Configuration Guide

53-1003033-02

Configuring BGP4 neighbors

[route-map in | out map-name]
[route-reflector-client]
[send-community]
[shutdown [generate-rib-out] ]
[soft-reconfiguration inbound]
[static-network-edge]
[timers keep-alive num hold-time num]
[unsuppress-map map-name]
[update-source ip-addr | ethernet slot/portnum | loopback num | ve num]
[weight num]
[send-label]
}

The ip-addr | peer-group-name parameter indicates whether you are configuring an individual
neighbor or a peer group. If you specify a neighbor IP address, you are configuring that individual
neighbor. If you specify a peer group name, you are configuring a peer group. Refer to

“Configuring

a BGP4 peer group”

on page 60.

activate allows exchange of routes in the current family mode.

advertisement-interval seconds configures an interval in seconds over which the specified
neighbor or peer group will hold all route updates before sending them. At the expiration of the
timer, the routes are sent as a batch. The default value for this parameter is zero. Acceptable
values are 0 to 600 seconds.

allowas-in num disables the AS_PATH check function for routes learned from a specified location.
BGP4 usually rejects routes that contain an AS number within an AS_PATH attribute to prevent
routing loops. In an MPLS or VPN hub and spoke topology this can prevent legitimate routes from
being accepted. The allowas-in option stops this blockage. num specifies the number of
occurrences of the AS number.

capability as4 [enable | disable] enables the capability of processing AS4s. The optional keywords
enable | disable specify whether the feature should be changed from its current state. For
example, if this neighbor belongs to a peer group that is enabled for AS4s but you want disable it on
the current interface, use the command and include the disable keyword.

capability orf prefixlist [send | receive] configures cooperative device filtering. The send | receive
parameter specifies the support you are enabling:

send – The device sends the IP prefix lists as Outbound Route Filters (ORFs) to the neighbor.

receive – The device accepts filters as Outbound Route Filters (ORFs) from the neighbor.

If you do not specify either send or receive, both capabilities are enabled. The prefixlist parameter
specifies the type of filter you want to send to the neighbor.

For more information, refer to

“Configuring cooperative BGP4 route filtering”

on page 96.

NOTE

The current release supports cooperative filtering only for filters configured using IP prefix lists.

default-originate [route-map map-name] configures the device to send the default route 0.0.0.0 to
the neighbor. If you use the route-map map-name parameter, the route map injects the default
route conditionally, based on the match conditions in the route map.

description string specifies a name for the neighbor. You can enter an alphanumeric text string up
to 80 characters long.

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