3Com CoreBuilder 3500, Implementation Manual, Page: 307 / 592

Routing Policies 307
Creating RIP Routing
Policies
To set a routing policy, you need to know the following parameters:
■
Policy type
— The determination whether to accept a route into the
routing table (import) or advertise a route from the routing table
(export)
■
Source address — The routing device that is sending the route to
your system
■
Route address — The actual device IP address of the route origin
■
Route subnet mask
— The subnet mask of the device IP address of
the route origin
■
IP interface
— The IP interface on your system that the route is
coming in on
The policy takes effect on the selected interface only if the origin protocol
matches the protocol enabled for the interface selected.
■
Policy action
— The determination whether to accept or reject the
route
■
Metric adjustment
— The determination to increase or decrease the
route metric (the number of hops) for the route
■
Administrative weight
— The level of importance of this policy: 1 is
low priority, 16 is high priority
Sketch a topology of your routers and the proposed routing policies of
each to get an understanding of how the routers work together and how
traffic flows.