Avaya Configuring IP Exterior Gateway Protocols (BGP and EGP) Manuel d'utilisateur télécharger pdf (Page 130)

Configuring IP Exterior Gateway Protocols (BGP and EGP)

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308628-14.00 Rev 00

Supplying Modification Values for a BGP Announce Policy

You can use the BCC or Site Manager to supply values that BGP uses to modify

fields in a BGP update that matches the policy.

Using the BCC

Navigate to the policy-specific prompt and enter:

modify

For example, the following command invokes a modification prompt for BGP

announce policy pol_1:

announce/pol_1//jointfilesconvert/106988/bgp#

modify

modify//jointfilesconvert/106988/bgp/announce/pol_1#

To supply a value, enter:

parameter value

is one of the combinations shown in Table 7-5.

Table 7-5. BCC BGP Announce Policy Parameter Overrides

Parameter Values Function

as-path null (default) or an

AS path

Specifies an AS path that overrides the

AS-path attribute of a route matching this

policy. An AS path is composed of AS path

segments. Each path segment includes a path

segment type, a path segment length

specifying the number of ASs in the segment,

and a path segment value containing one or

more AS numbers. There are two AS path

segment types: type 1, an unordered set of

ASs that a route in the update message has

traversed; and type 2, an ordered set of ASs

that a route in the update message has

traversed.

as-prepend List of AS numbers Specifies AS numbers that BGP adds to an AS

path before it adds the current AS to the path.

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Avaya Configuring IP Exterior Gateway Protocols (BGP and EGP) Manuel d'utilisateur Page 130