Avaya Configuring IP Exterior Gateway Protocols (BGP and EGP) Manual do Utilizador descarregar pdf (Página 117)

Configuring BGP Accept and Announce Policies

308628-15.0 Rev 00

5-7

Table 5-2. BCC Match Parameters for BGP Accept Policies

Parameter Values Function

as-path-pattern null or any regular

expression

Allows AS path pattern-matching. Enter a

valid regular expression to indicate an AS and

its position in a path (see Ta ble 5- 7). The

policy applies to all routes whose AS path

includes the AS in that position. For example,

the expression * 200 $ means that the policy

applies to all routes whose as_path attribute

contains AS 200 as the last AS in the path.

origin any (default)

igp

egp

incomplete

Specifies values of the BGP origin path

attribute. This policy applies to BGP

advertisements with the origin path that you

specify

aggregator-as* List of AS numbers Specifies an autonomous system. This policy

applies to BGP advertisements with this AS

number in the aggregator path attribute.

aggregator-router* List of IP addresses Specifies a BGP router. This policy applies to

BGP advertisements with this IP address in

the aggregator path attribute.

as* List of AS numbers Specifies an AS. This policy applies to BGP

advertisements from peers in this AS.

community* no-export

no-advertise

no-export-subconfed

List of BGP

communities

Specifies a BGP community. This policy

applies to all BGP advertisements that match

one or more members of the community list.

Specify one of the well-known community

names (no-export, no-advertise, no-export-

subconfed) or enter a four-octet community

number in the form

AS_number

value

Entering 0 in the two most significant bits

causes the router to match on the lower 16

bits.

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