Foundry Networks FESX User Manual

Configuring OSPF
December 2005 © Foundry Networks, Inc. 20 - 35
EXAMPLE:
To reinstate the trap, enter the following command:
FESX424 Router(config-ospf-router)# trap neighbor-state-change-trap
Syntax: [no] snmp-server trap ospf <ospf-trap>
Modify OSPF Standard Compliance Setting
Foundry routers are configured, by default, to be compliant with the RFC 1583 OSPF V2 specification.
To configure a router to operate with the latest OSPF standard, RFC 2178, enter the following commands:
FESX424 Router(config)# router ospf
FESX424 Router(config-ospf-router)# no rfc1583-compatibility
Syntax: [no] rfc1583-compatibility
Modify Exit Overflow Interval
If a database overflow condition occurs on a router, the router eliminates the condition by removing entries that
originated on the router. The exit overflow interval allows you to set how often a Layer 3 Switch checks to see if
the overflow condition has been eliminated. The default value is 0. The range is 0 – 86400 seconds (24 hours). If
the configured value of the database overflow interval is zero, then the router never leaves the database overflow
condition.
NOTE: FastIron devices dynamically allocate OSPF memory as needed. See “Dynamic OSPF Memory” on
page 20-8.
To modify the exit overflow interval to 60 seconds, enter the following command:
FESX424 Router(config-ospf-router)# data-base-overflow-interval 60
Syntax: database-overflow-interval <value>
The <value> can be from 0 – 86400 seconds. The default is 0 seconds.
Configuring an OSPF Point-to-Point Link
In an OSPF point-to-point link, a direct Layer 3 connection exists between a single pair of OSPF routers, without
the need for Designated and Backup Designated routers. In a point-to-point link, neighboring routers become
adjacent whenever they can communicate directly. In contrast, in broadcast and non-broadcast multi-access
(NBMA) networks, the Designated Router and the Backup Designated Router become adjacent to all other routers
attached to the network.
Configuration Notes and Limitations
• This feature is supported on FESX devices running software release 02.2.00 or later.
• This feature is supported on Gigabit Ethernet and 10-Gigabit Ethernet interfaces.
• This feature is supported on physical interfaces. It is not supported on virtual interfaces.
• Foundry supports numbered point-to-point networks, meaning the OSPF router must have an IP interface
address which uniquely identifies the router over the network. Foundry does not support unnumbered point-
to-point networks.
Configuring an OSPF Point-to-Point Link
To configure an OSPF point-to-point link, enter commands such as the following:
FastIron SuperX Switch(config)# interface eth 1/5
FastIron SuperX Switch(config-if-1/5)# ip ospf network point-to-point
This command configures an OSPF point-to-point link on Interface 5 in slot 1.

Foundry Networks FESX Specifications

General

Brand	Foundry Networks
Model	FESX
Category	Switch
Language	English