Brocade Communications Systems 8 Troubleshooting And Diagnostics Manual page 48

3
Device login issues
4. Enter the portErrShow command; then, check for errors that can cause login problems. A
NOTE
When two shared ports on an FC4-48 blade are receiving traffic and the primary port goes offline,
all the frames that are out for delivery for the primary port are dropped, but the counters show them
as dropped on the secondary port that shares the same area. Error counters increment
unexpectedly for the secondary port, but the secondary port is operating properly.
If this occurs, clear the counters using the portStatsClear or statsClear command on the secondary
port after the primary port goes offline.
5. Enter the portFlagsShow command; then, check to see how a port has logged in and where a
34
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
-----------------+--+--+--+--+----+--+--+--+----+--+--+--+----+--+--+--
Speed AN AN AN AN
Trunk Port 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
where AN:AutoNegotiate, ..:OFF, ??:INVALID,
SN:Software controlled AutoNegotiation.
steadily increasing number of errors can indicate a problem. Track errors by sampling the port
errors every five or ten minutes until you see the problem occur again.
login failed (if a failure occurred):
switch:admin> portflagsshow
Port SNMP Physical
-------------------------------
0 Offline In_Sync
1 Online In_Sync
LOGIN NOELP LED ACCEPT
2 Offline No_Light
3 Offline No_Module
4 Offline No_Module
5 Offline No_Light
6 Offline No_Module
7 Offline No_Module
8 Offline No_Light
9 Offline No_Light
10 Offline No_Module
11 Offline No_Module
12 Offline No_Module
13 Offline No_Module
1 2 3 4 5 6 7
AN AN AN AN
ON ON ON ON
.. .. .. ..
.. .. .. ..
.. .. .. ..
.. .. .. ..
.. .. .. ..
.. .. .. ..
.. .. .. ..
.. .. .. ..
ON ON ON ON
Flags
PRESENT U_PORT LED
PRESENT ACTIVE F_PORT G_PORT U_PORT LOGICAL_ONLINE
PRESENT U_PORT LED
PRESENT U_PORT LED
PRESENT U_PORT LED
PRESENT U_PORT LED
PRESENT U_PORT LED
PRESENT U_PORT LED
PRESENT U_PORT LED
PRESENT U_PORT LED
PRESENT U_PORT LED
PRESENT U_PORT LED
PRESENT U_PORT LED
PRESENT U_PORT LED
Fabric OS Troubleshooting and Diagnostics Guide
8 9 10 11 12 13 14 15
AN AN AN AN AN AN AN AN
ON ON ON ON ON ON ON ON
.. .. .. .. .. .. .. ..
.. .. .. .. .. .. .. ..
.. .. .. .. .. .. .. ..
.. .. .. .. .. .. .. ..
.. .. .. .. .. .. .. ..
.. .. .. .. .. .. .. ..
.. .. .. .. .. .. .. ..
.. .. .. .. .. .. .. ..
ON ON ON ON ON ON ON ON
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