Dell POWEREDGE M1000E - Manual (Page 31)

Fabric OS Troubleshooting and Diagnostics Guide 17
53-1001769-01
FC-FC routing connectivity
2
Example of one device that accepts the request and another device that rejects the request:
switch:admin> fcping 10:00:00:00:c9:29:0e:c4 21:00:00:20:37:25:ad:05
Source: 10:00:00:00:c9:29:0e:c4
Destination: 21:00:00:20:37:25:ad:05
Zone Check: Not Zoned
Pinging 10:00:00:00:c9:29:0e:c4 [0x20800] with 12 bytes of data:
received reply from 10:00:00:00:c9:29:0e:c4: 12 bytes time:1162 usec
received reply from 10:00:00:00:c9:29:0e:c4: 12 bytes time:1013 usec
received reply from 10:00:00:00:c9:29:0e:c4: 12 bytes time:1442 usec
received reply from 10:00:00:00:c9:29:0e:c4: 12 bytes time:1052 usec
received reply from 10:00:00:00:c9:29:0e:c4: 12 bytes time:1012 usec
5 frames sent, 5 frames received, 0 frames rejected, 0 frames timeout
Round-trip min/avg/max = 1012/1136/1442 usec
Pinging 21:00:00:20:37:25:ad:05 [0x211e8] with 12 bytes of data:
Request rejected
Request rejected
Request rejected
Request rejected
Request rejected
5 frames sent, 0 frames received, 5 frames rejected, 0 frames timeout
Round-trip min/avg/max = 0/0/0 usec
Example To use fcPing with a single destination (in this example, the destination is a device node WWN):
switch:admin> fcping 20:00:00:00:c9:3f:7c:b8
Destination: 20:00:00:00:c9:3f:7c:b8
Pinging 20:00:00:00:c9:3f:7c:b8 [0x370501] with 12 bytes of data:
received reply from 20:00:00:00:c9:3f:7c:b8: 12 bytes time:825 usec
received reply from 20:00:00:00:c9:3f:7c:b8: 12 bytes time:713 usec
received reply from 20:00:00:00:c9:3f:7c:b8: 12 bytes time:714 usec
received reply from 20:00:00:00:c9:3f:7c:b8: 12 bytes time:741 usec
received reply from 20:00:00:00:c9:3f:7c:b8: 12 bytes time:880 usec
5 frames sent, 5 frames received, 0 frames rejected, 0 frames timeout
Round-trip min/avg/max = 713/774/880 usec
Superping
Superping refers to the fcPing --allpaths command which is a diagnostic tool used to test all least
cost ISLs between a source and destination switch. When you run the command you are provided
with a list of all available least cost paths from a source domain to a destination device. Superping
isolates links with potential failures so that you can investigate these ISLs to determine the exact
links.
ATTENTION
There are some devices that do not support the ELS ECHO request. In these cases, the device will
either not respond to the request or send an ELS reject. When a device does not respond to the ELS
request, further debugging is required; however, do not assume that the device is not connected.
It works by sending ECHO frames to a destination device and outputs the status of each ISL it
traverses whether or not the response from the destination device is received. Each ECHO frame
may choose any path from multiple available paths in the fabric to reach the destination device.
This utility allows you to do the following:
• Run a sanity test that exercises all the ISLs and internal links in different paths that route to the
destination device.
• Determines the least cost path to aid in designing fabric redundancy.