Dell Brocade G620 Brocade 8.0.1 Fabric OS Troubleshooting and Diagnostics Guid - Page 40

Checking for a loop initialization failure, speed_level, LISA frame

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Connectivity If these fields do not appear, proceed to Step 6. 6. If the fields in Step 5 do not appear, correct the negotiation by entering the portCfgSpeed command with the speed_level option. switch:admin> portcfgspeed Usage: portCfgSpeed PortNumber Speed_Level Speed_Level: 0 - Auto Negotiate 4 - 4Gbps 8 - 8Gbps 10 - 10bps 16 - 16Gbps 32 - 32Gbps ax - Auto Negotiate + enhanced retries Checking for a loop initialization failure 1. Verify the port is an L_Port. a) Enter the switchShow command. b) Check the last field of the output to verify that the switch port indicates an L_Port. If a loop device is connected to the switch, the switch port must be initialized as an L_Port. c) Check to ensure that the state is online; otherwise, check for link failures. Example of an online L_Port Area Port Media Speed State Proto (output truncated) 66 66 -- N8 No_Module 67 67 id AN No_Sync 68 68 id N2 Online L-Port 13 public 2. Verify that loop initialization occurred if the port to which the loop device is attached does not negotiate as an L_Port. a) Enter the portLogShow or portLogDump command to display the port log for all ports on the switch; or if you are looking for a specific port, enter the portLogDumpPort command. b) Check argument number four for the loop initialization soft assigned (LISA) frame 0x11050100. switch:admin> portlogdumpport 4 time task event port cmd 11:40:02.078 PORT Rx3 23 20 22000000,00000000,ffffffff,11050100 Received LISA frame The LISA frame indicates that the loop initialization is complete. 3. Skip point-to-point initialization by using the portCfgLport command. args The switch changes to point-to-point initialization after the LISA phase of the loop initialization. This behavior sometimes causes trouble with old HBAs. Checking for a point-to-point initialization failure 1. Enter the switchShow command to confirm that the port is active and has a module that is synchronized. If a fabric device or another switch is connected to the switch, the switch port must be online. 2. Enter the portLogShow or portLogDump commands. Brocade Fabric OS Troubleshooting and Diagnostics Guide 40 53-1004126-01

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If these fields do not appear, proceed to Step 6.
6.
If the fields in Step 5 do not appear, correct the negotiation by entering the
portCfgSpeed
command with the
speed_level
option.
switch:admin> portcfgspeed
Usage: portCfgSpeed PortNumber
Speed_Level
Speed_Level:
0
- Auto Negotiate
4
- 4Gbps
8
- 8Gbps
10 - 10bps
16 - 16Gbps
32 - 32Gbps
ax - Auto Negotiate + enhanced retries
Checking for a loop initialization failure
1.
Verify the port is an L_Port.
a)
Enter the
switchShow
command.
b)
Check the last field of the output to verify that the switch port indicates an L_Port. If a loop device is connected to the
switch, the switch port must be initialized as an L_Port.
c)
Check to ensure that the state is online; otherwise, check for link failures.
Example of an online L_Port
Area Port Media Speed State
Proto
=====================================
(output truncated)
66
66
--
N8
No_Module
67
67
id
AN
No_Sync
68
68
id
N2
Online
L-Port
13 public
2.
Verify that loop initialization occurred
if
the port to which the loop device is attached does not negotiate as an L_Port.
a)
Enter the
portLogShow
or
portLogDump
command to display the port log for all ports on the switch; or if you are looking
for a specific port, enter the
portLogDumpPort
command.
b)
Check argument number four for the loop initialization soft assigned (
LISA) frame
0x11050100.
switch:admin> portlogdumpport 4
time
task
event
port
cmd
args
-----------------------------------------------------------------
11:40:02.078
PORT
Rx3
23
20
22000000,00000000,ffffffff,11050100 Received LISA frame
The
LISA frame
indicates that the loop initialization is complete.
3.
Skip point-to-point initialization by using the
portCfgLport
command.
The switch changes to point-to-point initialization after the LISA phase of the loop initialization. This behavior sometimes
causes trouble with old HBAs.
Checking for a point-to-point initialization failure
1.
Enter the
switchShow
command to confirm that the port is active and has a module that is synchronized.
If a fabric device or another switch is connected to the switch, the switch port must be online.
2.
Enter the
portLogShow
or
portLogDump
commands.
Connectivity
Brocade Fabric OS Troubleshooting and Diagnostics Guide
40
53-1004126-01