HP 1606 Fabric OS Troubleshooting and Diagnostics Guide v6.4.0 (53-1001769-01, - Page 31

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. Fabric OS Troubleshooting and Diagnostics Guide 17 53-1001769-01