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Foundry Configuration Guide for the FESX, FSX, and FWSX
20 - 14
© Foundry Networks, Inc.
December 2005
FESX424 Router(config-ospf-router)# area 193.45.6.2 range 193.45.0.0 255.255.0.0
Syntax:
area <num> | <ip-addr> range <ip-addr> <ip-mask>
The <num> | <ip-addr> parameter specifies the area number, which can be in IP address format.
The
range
<ip-addr> parameter specifies the IP address portion of the range. The software compares the
address with the significant bits in the mask. All network addresses that match this comparison are summarized
in a single route advertised by the router.
The <ip-mask> parameter specifies the portions of the IP address that a route must contain to be summarized in
the summary route. In the example above, all networks that begin with 193.45 are summarized into a single route.
Assigning Interfaces to an Area
Once you define OSPF areas, you can assign interfaces to the areas. All router ports must be assigned to one of
the defined areas on an OSPF router. When a port is assigned to an area, all corresponding sub-nets on that port
are automatically included in the assignment.
To assign interface 1/8 to area 192.5.0.0 and then save the changes, enter the following commands:
FastIron SuperX Router(config-ospf-router)# interface e 1/8
FastIron SuperX Router(config-if-1/8)# ip ospf area 192.5.0.0
FastIron SuperX Router(config-if-1/8)#
write memory
Modify Interface Defaults
OSPF has interface parameters that you can configure. For simplicity, each of these parameters has a default
value. No change to these default values is required except as needed for specific network configurations.
Port default values can be modified using the following CLI commands at the interface configuration level of the
CLI:
•
ip ospf area <ip-addr>
•
ip ospf auth-change-wait-time <secs>
•
ip ospf authentication-key [0 | 1] <string>
•
ip ospf cost <num>
•
ip ospf dead-interval <value>
•
ip ospf hello-interval <value>
•
ip ospf md5-authentication key-activation-wait-time <num> | key-id <num> [0 | 1] key <string>
•
ip ospf passive
•
ip ospf priority <value>
•
ip ospf retransmit-interval <value>
•
ip ospf transmit-delay <value>
For a complete description of these parameters, see the summary of OSPF port parameters in the next section.
OSPF Interface Parameters
The following parameters apply to OSPF interfaces.
Area:
Assigns an interface to a specific area. You can assign either an IP address or number to represent an
OSPF Area ID. If you assign a number, it can be any value from 0 – 2,147,483,647.
Auth-change-wait-time:
OSPF gracefully implements authentication changes to allow all routers to implement
the change and thus prevent disruption to neighbor adjacencies. During the authentication-change interval, both
the old and new authentication information is supported. The default authentication-change interval is 300
seconds (5 minutes). You change the interval to a value from 0 – 14400 seconds.
Содержание FastIron Edge Switch X424
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