HP StorageWorks MSA 2/8 - SAN Switch User Manual page 214

Troubleshooting
4. Enter the portErrShow command. Check for errors that may cause login
Example:
switch:admin> portflagsshow
Port SNMP
-------------------------------
0: Offline
1: Offline
2: Offline
3: Offline
4: Offline
5: Offline
6: Offline
7: Offline
8: Offline
9: Offline
10: Offline
11: Offline
12: Offline
13: Offline
14: Offline
15: Offline
16: Online
switch:admin>
214
problems.
— A high number of errors relative to the frames transmitted and frame
received may indicate a marginal link. See
— A steadily increasing number of errors may indicate a problem. Track
errors by sampling the port errors every five or ten seconds.
Physical Flags
No_Module PRESENT U_PORT LED
No_Module PRESENT U_PORT LED
No_Light PRESENT U_PORT LED
No_Light PRESENT U_PORT LED
No_Light PRESENT U_PORT LED
No_Module PRESENT U_PORT LED
No_Module PRESENT U_PORT LED
No_Module PRESENT U_PORT LED
No_Module PRESENT U_PORT LED
No_Module PRESENT U_PORT LED
No_Module PRESENT U_PORT LED
No_Module PRESENT U_PORT LED
No_Module PRESENT U_PORT LED
No_Module PRESENT U_PORT LED
No_Module PRESENT U_PORT LED
No_Module PRESENT U_PORT LED
UNKNOWN PRESENT ACTIVE G_PORT U_PORT
"Marginal
Fabric OS Procedures Version 3.1.x/4.1.x User Guide
Links" on page 234.