Cisco Nexus 5000 Series Switch CLI Software Configuration Guide (OL-16597-01, July 2009)

This example shows invoking fcping for the specified device alias of the destination:
switch# fcping device-alias disk1 vsan 1
28 bytes from 22:00:00:0c:50:02:ce:f8 time = 1883 usec
28 bytes from 22:00:00:0c:50:02:ce:f8 time = 493 usec
28 bytes from 22:00:00:0c:50:02:ce:f8 time = 277 usec
28 bytes from 22:00:00:0c:50:02:ce:f8 time = 391 usec
28 bytes from 22:00:00:0c:50:02:ce:f8 time = 319 usec
5 frames sent, 5 frames received, 0 timeouts
Round-trip min/avg/max = 277/672/1883 usec
This example shows invoking the fcping command when there is resource exhaustion at the N port:
switch# fcping fcid 0x010203 vsan 1
No response from the N port.
switch# fcping pwwn 21:00:00:20:37:6f:db:dd vsan 1
28 bytes from 21:00:00:20:37:6f:db:dd time = 1454 usec
...
5 frames sent, 5 frames received, 0 timeouts
Round-trip min/avg/max = 364/784/1454 usec
The command returns a "No response from the N port" message even when the N port is active. Retry the
command a few seconds later.
Note
Verifying Switch Connectivity
You can verify connectivity to a destination switch.
The FC ID variable used in this procedure is the domain controller address; it is not a duplication of the
domain ID.
Note
To verify connectivity to a destination switch, perform this task:
Procedure
PurposeCommand or Action
Displays the destination switch’s
domain ID.
switch# show fcdomain domain-list vsan 200
0xda(218) 20:c8:00:05:30:00:87:9f [Local]
Step 1
Example:
Number of domains: 7
Domain ID WWN
To obtain the domain controller address,
concatenate the domain ID with FFFC.
For example, if the domain ID is
0xda(218), the concatenated ID is
0xfffcda.
--------- -----------------------
0x01(1) 20:c8:00:05:30:00:59:df [Principal]
0x02(2) 20:c8:00:0b:5f:d5:9f:c1
0x6f(111) 20:c8:00:05:30:00:60:df
0x06(6) 20:c8:00:0b:46:79:f2:41
0x04(4) 20:c8:00:05:30:00:86:5f
0x6a(106) 20:c8:00:05:30:00:f8:e3
Verifies reachability of the destination
switch by checking its end-to-end
connectivity.
switch# fcping fcid 0xFFFCDA vsan 200
Example:
28 bytes from 0xFFFCDA time = 298 usec
28 bytes from 0xFFFCDA time = 260 usec
Step 2
28 bytes from 0xFFFCDA time = 298 usec
28 bytes from 0xFFFCDA time = 294 usec
28 bytes from 0xFFFCDA time = 292 usec
5 frames sent, 5 frames received, 0 timeouts
Round-trip min/avg/max = 260/288/298 usec
Cisco Nexus 5000 Series Switch CLI Software Configuration Guide
688 OL-16597-01
Troubleshooting
Verifying Switch Connectivity