Verifying Switch Connectivity - Cisco AP775A - Nexus Converged Network Switch 5010 Configuration Manual

Verifying Switch Connectivity

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
Note
command a few seconds later.
Verifying Switch Connectivity
You can verify connectivity to a destination switch.
Note The FC ID variable used in this procedure is the domain controller address; it is not a duplication of the
domain ID.
To verify connectivity to a destination switch, perform this task:
Procedure
Step 1
Step 2
Cisco Nexus 5000 Series Switch CLI Software Configuration Guide
688
Command or Action
switch# show fcdomain domain-list vsan 200
0xda(218) 20:c8:00:05:30:00:87:9f [Local]
Example:
Number of domains: 7
Domain ID WWN
--------- -----------------------
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
switch# fcping fcid 0xFFFCDA vsan 200
Example:
28 bytes from 0xFFFCDA time = 298 usec
28 bytes from 0xFFFCDA time = 260 usec
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
Troubleshooting
Purpose
Displays the destination switch's
domain ID.
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.
Verifies reachability of the destination
switch by checking its end-to-end
connectivity.
OL-16597-01