Cisco MDS-9124 Troubleshooting Guide - Page 249
Resolving a Wrong Hello Interval on an ISL Using the CLI, debug fspf all, undebug all
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Chapter 11 Troubleshooting VSANs, Domains, and FSPF FSPF Issues Send documentation comments to [email protected] Resolving a Wrong Hello Interval on an ISL Using the CLI To resolve a wrong hello interval on an ISL using the CLI, follow these steps: Step 1 Use the debug fspf all command and look for wrong hello interval messages. switch1# debug fspf all Jan 5 00:28:14 fspf: Wrong hello interval for packet on interface 100f000 in VSAN 1 Jan 5 00:28:14 fspf: Error in processing hello packet , error code = 4 Tip We recommend that you open a second Telnet or SSH session before entering any debug commands. If the debug output overwhelms the current session, you can use the second session to enter the undebug all command to stop the debug message output. Step 2 Use the undebug all command to turn off debugging. Step 3 Use the show fspf internal route vsan command to show FSPF information. Note To issue commands with the internal keyword, you must have an account that is a member of the network-admin group. switch1# show fspf internal route vsan 1 FSPF Unicast Routes VSAN Number Dest Domain Route Cost Next hops 1 0xEF(239) 1000 fc1/1
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