Avaya Configuring IP Exterior Gateway Protocols (BGP and EGP) Manual de usuario descargar pdf (Pagina 120)

Configuring IP Exterior Gateway Protocols (BGP and EGP)

5-10

308628-15.0 Rev 00

Supplying Modification Values for a BGP Accept Policy

You can use the BCC or Site Manager to

specify override values for fields in

routing updates that match the BGP accept policy.

Using the BCC

To supply values that BGP can use to modify attributes in a BGP update that

matches an accept policy, go to the policy prompt (for example,

box; ip; /jointfilesconvert/97454/bgp;

accept policy_1

) and enter:

modify

The modification prompt appears for the policy. For example:

accept/pol_1//jointfilesconvert/97454/bgp#

modify

modify//jointfilesconvert/97454/bgp/accept/pol_1#

To specify an override value, enter:

Table 5-3 lists the parameters and values that you can enter.

Table 5-3. BCC Modification Parameters for BGP Accept Policies

Parameter Values Function

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

AS path before it adds the local AS to the

path

local-preference 0 (default) to

4294967295

Specifies an override value for the local

preference attribute

med-method passthru (default)

override

generate

delete

Indicates whether a multiexit discriminator

(MED) metric is used for a network matching

this policy and what value to use

med -1, 0, or any positive

integer through

2,147,483,647

Specifies a metric for the MED attribute

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Avaya Configuring IP Exterior Gateway Protocols (BGP and EGP) Manual de usuario Pagina 120