3Com CoreBuilder 3500, Implementation Manual, Page: 408 / 592

408 C
HAPTER
14: O
PEN
S
HORTEST
P
ATH
F
IRST
(OSPF)
Import Example 1: Accept Route
The policy defined in Table 48 imports route 243.140.28.0 into the
routing table and assigns a cost of 10 to the route.
Import Example 2: Reject Route
The policy defined in Table 49 prohibits the router from adding route
243.140.28.0 to its routing table.
Implementing Export
Policies
Using export policies, you can define which self-originated (external
routes being RIP) a router advertises.
Self-originated refers to routes that
are originated by the router itself. You can also adjust the cost and
external metric type of each route that you allow the router to advertise.
Using RIP, you can define which
external routes (RIP) a router advertises.
External routes are self-originated, but must be external to OSPF.
See the discussion about Type 1 and Type 2 metrics in “External Link State
Advertisements” earlier in this chapter for more information about
external metric types.
Table 48 Import Policy Example
Policy Field Definition
Policy type import
Route address 243.140.28.0
Route subnet mask 255.255.255.0
Policy action accept
Metric adjustment 10
Administrative weight 16
Table 49 Export Policy Example
Policy Field Definition
Policy type import
Route address 243.140.28.0
Route subnet mask 255.255.255.0
Policy action reject
Administrative weight 15