Brocade Communications Systems FastIron SX 1600, Configuration Manual, Page: 240 / 593

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 ospf auth-change-wait-time
• ip ospf authentication-key
• ip ospf cost
• ip ospf database-filter all out
• ip ospf dead-interval
• ip ospf hello-interval
• ip ospf md5-authentication key-activation-wait-time
• ip ospf mtu-ignore
• ip ospf passive
• ip ospf active
• ip ospf priority
• ip ospf retransmit-interval
• ip ospf transmit-delay
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.
• authentication-key string —
By default, the authentication key is encrypted. If you want the authentication key to be in clear text, insert a 0 between
authentication-key and string . For example:
device(config-if-e10000-1/1/8)# ip ospf authentication-key 0 morningadmin
The software adds a prefix to the authentication key string in the configuration. For example, the following portion of the code
has the encrypted code "2".
ip ospf authentication-key 2 $on-o
The prefix can be one of the following:
–
0 = the key string is not encrypted and is in clear text.
– 1 = the key string uses proprietary simple cryptographic 2-way algorithm.
• cost—Indicates the overhead required to send a packet across an interface. You can modify the cost to differentiate between
100 Mbps, 1 Gbps, and 10 Gbps. The default cost is calculated by dividing 100 million by the bandwidth. For 10 Mbps links,
Configuring OSPF
FastIron Ethernet Switch Layer 3 Routing
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