Cabletron Systems SSIM-R8-02 Specifikace stáhnout pdf (Strana 215)

Enterasys Xpedition User Reference Manual 195

Configuring Advanced Routing Policies

Router R1 would like to export all RIP, interface, and static routes to OSPF.

Router R1 would also like to export interface, static, RIP, OSPF, and OSPF-ASE routes into

RIP.

Configuring Advanced Routing Policies

Advanced Routing Policies are used for creating complex import/export policies that

cannot be done using the redistribute command. Advanced export policies provide

granular control over the targets where the routes are exported, the source of the exported

routes, and the individual routes which are exported. It provides the capability to send

different routes to the various route-peers. They can be used to provide the same route

with different attributes to the various route-peers.

Import policies control the importation of routes from routing protocols and their

installation in the routing database (Routing Information Base and Forwarding

Information Base). Import policies determine which routes received from other systems

are used by the XP routing process. Using import policies, it is possible to ignore route

updates from an unreliable peer and give better preference to routes learned from a

trusted peer.

Export Policies

Advanced export policies can be constructed from one or more of the following building

blocks:

• Export Destinations - This component specifies the destination where the routes are to

be exported. It also specifies the attributes associated with the exported routes. The

interface, gateway or the autonomous system to which the routes are to be

redistributed are a few examples of export-destinations. The metric, type, tag, and AS-

Path are a few examples of attributes associated with the exported routes.

ip-router policy redistribute from-proto rip to-proto ospf

ip-router policy redistribute from-proto direct to-proto ospf

ip-router policy redistribute from-proto static to-proto ospf

ip-router policy redistribute from-proto direct to-proto rip

ip-router policy redistribute from-proto static to-proto rip

ip-router policy redistribute from-proto rip to-proto rip

ip-router policy redistribute from-proto ospf to-proto rip

ip-router policy redistribute from-proto ospf-ase to-proto rip

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Cabletron Systems SSIM-R8-02 Specifikace Strana 215