3Com corebuilder 3500 Implementation Manual page 414

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Export Example 4: Advertisement of Direct Interfaces

The policy defined in Table 55 configures a router to advertise direct

interface 8 as a Type 2 external metric with a cost increase of 2.

Table 55 Export Policy to Accept a Direct Interface

Policy Field

Origin protocol

IP interfaces

Policy action

Metric adjustment

Administrative weight

Suppose a routing table entry exists for interface 8 that identifies the

route as a Type 1 external metric with an associated cost of 10. This policy

configures the router to export direct interface 8 from its routing table

and write the routing interface information to its link state database as a

Type 2 external metric, with an associated cost of plus 2. As a result the

router advertises the interface over the network as a Type 2 external

metric with an associated cost of 12, overriding the external metric type

and cost that are defined for the interface in the system's routing table.

Export Example 5: Advertisement of Static Routes

The policy defined in Table 56 configures a router to advertise all static

routes as Type 1 external metrics with a cost of 1.

Table 56 Export Policy to Accept Static Routes

Policy Field

Origin protocol

Source address

Route address

Policy action

Metric adjustment

Administrative weight