Compatible rfc1583, Debug ospf event, Debug ospf ism – Black Box LRU4240 User Manual

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Dual Trunk E1 Router User’s Guide

Dual Trunk E1 Router

compatible rfc1583

Use the compatible rfc1583 command to restore the method used to calculate summary route costs per RFC.
Use the no form of this command to disable RFC 1583 compatibility.
Command Syntax
(no) compatible rfc1583
Default
By default, OSPF is rfc 2328 compatible.
Command Mode
Router mode
Usage
Prior to RFC 2328, OSPF was compliant with RFC 1583, that specified method for calculating the metric for summary routes
based on the minimum metric of the component paths available. RFC 2328 specifies a method for calculating metrics based on
maximum cost. With this change, it is possible that all of the ABRs in an area might not be upgraded to the new code at the same
time. Compatible rfc1583 command addresses this issue and allows the selective disabling of compatibility with RFC 2328.
Examples
ospfd# configure terminal
ospfd(config)# router ospf 100
ospfd(config-router)# compatible rfc1583
Related Commands

debug ospf event

Use the debug ospf event command to specify debugging options for OSPF event troubleshooting. Use this command without
parameters to turn on all the options.
Use the no form of this command to disable this function.
Command Syntax
(no) debug ospf event (abr|asbr|lsa|os|router|vl)
abr shows ABR events
asbr shows ASBR events
lsa shows LSA events
os shows OS interaction events
router shows other router events
vl shows virtual link events
Command Mode
Privileged EXEC mode and Configure mode
Usage
Examples
ospfd# no debug ospf event abr
ospfd# debug ospf event asbr
ospfd# debug ospf event lsa
ospfd# debug ospf event os
ospfd# debug ospf event router
ospfd# debug ospf event vl
Related Commands
terminal monitor, log file

debug ospf ism

Use the debug ospf ism command to specify debugging options for OSPF Interface State Machine (ISM)
troubleshooting.
Use the no form of this command to disable this function.
Command Syntax
(no) debug ospf ism (status|events|timers)
events Displays ISM event information
status Displays ISM status information

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