HP StorageWorks 4/16 Brocade Troubleshooting and Diagnostics Guide v6.1.0 (53- - Page 41
Pinpointing problems with device logins, and from the switch, patch panel
View all HP StorageWorks 4/16 manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 41 highlights
Device login issues 3 79 79 id N2 Online (Trunk master) E-Port 10:00:00:05:1e:34:d0:05 "1_d1" Pinpointing problems with device logins 1. Log in to the switch as admin. 2. Enter the switchShow command; then, check for correct logins. 3. Enter the portCfgShow command to see if the port is configured correctly. In some cases, you may find that the port has been locked as an L_Port and the device attached is a fabric point-to-point device such as a host or switch. This would be an incorrect configuration for the device and therefore the device cannot log into the switch. To correct this type of problem, remove the Lock L_Port configuration using the portCfgDefault command. switch:admin> portcfgshow Ports of Slot 0 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Speed AN AN AN AN AN AN AN AN AN AN AN AN AN AN AN AN Trunk Port ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON Long Distance VC Link Init Locked L_Port Locked G_Port Disabled E_Port ISL R_RDY Mode RSCN Suppressed Persistent Disable NPIV capability ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON where AN:AutoNegotiate, ..:OFF, ??:INVALID, SN:Software controlled AutoNegotiation. 4. Enter the portErrShow command; then, check for errors that can cause login problems. A steadily increasing number of errors can indicate a problem. Track errors by sampling the port errors every five or ten minutes. • frames tx and rx are the number of frames being transmitted and received. • crc_err counter goes up then the physical path should be inspected. Check the cables to and from the switch, patch panel, and other devices. Check the SFP by swapping it with a well-known-working SFP. • enc_out are errors that occur outside the frame is usually a bad primitive. To determine if you are having a cable problem, take snapshots of the porterrshow in increments of 5 to 10 minutes. If you notice the crc_err counter go up, you have a bad or damaged cable, or a bad or damaged device in the path. • disc_c3 errors are discarded class 3 errors which means that the switch is holding onto the frame longer than the hold time allows. One problem this could be related to is ISL oversubscription. Fabric OS Troubleshooting and Diagnostics Guide 27 53-1000853-01