3Com 4007, Implementation Manual, Page: 496 / 684

496 C
HAPTER
19: O
PEN
S
HORTEST
P
ATH
F
IRST
(OSPF) R
OUTING
Import Example 1: Accept Route
The policy defined in Table 81 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 82 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
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.
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 81 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 82 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