Chapter 19
| Unicast Routing
Configuring the Open Shortest Path First Protocol (Version 2)
– 735 –
Parameters
These parameters are displayed:
◆ Process ID – Process ID as configured in the Network Area configuration screen
(see page 717).
◆ Protocol Type – Specifies the external routing protocol type for which routing
information is to be redistributed into the local routing domain. (Options: BGP,
RIP, Static; Default: RIP)
◆ Metric Type – Indicates the method used to calculate external route costs.
(Options: Type 1, Type 2; Default: Type 1)
Metric type specifies the way to advertise routes to destinations outside the
autonomous system (AS) through External LSAs. Specify Type 1 to add the
internal cost metric to the external route metric. In other words, the cost of the
route from any router within the AS is equal to the cost associated with
reaching the advertising ASBR, plus the cost of the external route. Specify Type
2 to only advertise the external route metric.
◆ Metric – Metric assigned to all external routes for the specified protocol.
(Range: 1-65535: Default: 10)
The metric value specified for redistributed routes supersedes the Default
External Metric specified in the Routing Protocol > OSPF > System screen
(page 720).
◆ Tag – A tag placed in the AS-external LSA to identify a specific external routing
domain, or to pass additional information between routers.
(Range: 0-4294967295)
A tag can be used to distinguish between routes learned from different
external autonomous systems (other routing protocols). For example, if there
are two ASBRs in a routing domain: A and B. ASBR A can be configured to
redistribute routes learned from RIP domain 1 (identified by tag 1) and ASBR B
can redistribute routes learned from RIP domain 2 (identified by tag 2).
Web Interface
To configure the router to import external routing information:
1. Click Routing Protocol, OSPF, Redistribute.
2. Select Add from the Action list.
3. Specify the process ID, the protocol type to import, the metric type, path cost,
and optional tag.
4. Click Apply.
To Next Page
Loading...
Need help?
General