Route Policies
7705 SAR OS Router Configuration Guide 459
policy-statement
Syntax [no] policy-statement name
Context config>router>policy-options
Description This command creates the context to configure a route policy statement.
Route policy statements control the flow of routing information from a specific protocol or protocols.
The policy-statement is a logical grouping of match and action criteria. A single policy-statement
can affect routing in one or more protocols and/or one or more protocols’ peers/neighbors. A single
policy-statement can also affect the export of routing information.
The no form of the command deletes the policy statement.
Default no policy-statement
Parameters name — the route policy statement name. Allowed values are any string up to 32 characters long
composed of printable, 7-bit ASCII characters. If the string contains special characters (#, $,
spaces, etc.), the entire string must be enclosed within double quotes.
triggered-policy
Syntax [no] triggered-policy
Context config>router
Description This command triggers route policy re-evaluation.
By default, when a change is made to a policy in the config router policy-options context and then
committed, the change is effective immediately. However, there may be circumstances where the
changes should or must be delayed; for example, when a policy change is implemented that would
affect every BGP peer on a 7705 SAR. It is more effective to control changes on a peer-by-peer basis.
If the triggered-policy command is enabled and a given peer is established, and you want the peer to
remain up, then, in order for a change to a route policy to take effect, a clear command with the soft
or soft-inbound option must be used. In other words, when a triggered-policy is enabled, any routine
policy change or policy assignment change within the protocol will not take effect until the protocol is
reset or a clear command is issued to re-evaluate route policies; for example, clear router bgp
neighbor x.x.x.x soft. This keeps the peer up, and the change made to a route policy is applied only to
that peer, or group of peers.
Default disabled — dynamic route policy is enabled; policy-option configuration changes take effect
immediately
To Next Page
Loading...
