BGP Policy Settings

BGP Policy Rule

Determines how BGP routing information is handled.

Include Policy

Inserts an existing policy "policyname" into the current policy. Included policies can themselves include other policies, up to a maximum level of 10 nested include policies.

Prefix

Address prefix that you want to advertise to the BGP peers in dotted decimal notation.

Exactly

Requires the entire prospective IP prefix and netmask to exactly match the IP prefix and netmask specified in the rule.

Prefix Longer than

When used with the deny keyword, prohibits from the BGP database any prospective IP address with a prefix containing more high-order bits than are specified by the netmask.

AS Path

Autonomous system path String to against which to compare the prospective IP prefix. Details

Community

Identifier Tag that categorizes a group of destinations against which to compare the prospective IP prefix.

Local Preference

Assigns an arbitrary rating Number to an external route for advertisement to internal or confederation-member peers only. Number is a 32-bit integer.

Input Multi-Exit-Disc

Assigns an arbitrary Number for the learned multiexit discriminator, overriding any that is learned from the peer. Number is a 32-bit integer. The strip keyword causes any multiexit discriminator information learned from a peer to be ignored.

input-multi-exit-disc can be abbreviated as imed in this command.

Lower numbers indicated an increased preference for a specific route. Use this metric to discriminate amoung multiple exit or entry points between the same pair of neighboring autonomous systems.

Output Multi-Exit-Disc

Assigns an arbitrary rating Number for the multiexit discriminator to an external route for advertisement to external or confederation member peers only. Number is a 32-bit integer.

Degree of Preference

Assigns a degree-of-preference for a Number to a route. Number is a 32-bit integer.

Next Hop

Assigns the IP address to advertise as the next hop. If you do not assign a value, a value is computed automatically for the best possible next hop to reach this route. However, if this peer is configured with the set peer always-next-hop on option, this router's local IP address is always used as the next hop.

Community

Identifier tag that categorizes a group of destinations against which to compare the prospective IP prefix.

Ignore Community

Instructs the PortMaster to igore the restrictive keywords no-advertise, no export, and no-export-subconfed when advertising this route to a peerr. Use this keyword in the rule to override thise restriction received from other peers.