Cisco MDS 9000 Series Troubleshooting Guide

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Cisco MDS 9000 Family Troubleshooting Guide
OL-5183-02, Cisco MDS SAN-OS Release 1.3
Chapter 1 Troubleshooting Overview
Using Cisco MDS 9000 Family Tools
FC Traceroute is slightly different than the IP equivalent because both the outbound and return paths are
recorded as these may differ in a switched Fibre Channel network. The FC Traceroute command
identifies the path taken on a hop-by-hop basis and includes a timestamp at each hop in both directions.
FC Ping and FC Traceroute are useful tools to check for network connectivity problems or verify the
path taken toward a specific destination. You can use FC Traceroute to test the connectivity of TE ports
along the path between the generating switch and the switch closest to the destination.
Note FC Trace will only work across EISL links.
The following is an example of output from the fcping command:
switch# fcping fcid 0xef02c9 vsan 1
28 bytes from 0xef02c9 time = 1408 usec
28 bytes from 0xef02c9 time = 379 usec
28 bytes from 0xef02c9 time = 347 usec
28 bytes from 0xef02c9 time = 361 usec
28 bytes from 0xef02c9 time = 363 usec
5 frames sent, 5 frames received, 0 timeouts
Round-trip min/avg/max = 347/571/1408 usec
The following is an example of output from the fctrace command:
switch# fctrace fcid 0xef0000 vsan 1
Route present for : 0xef0000
20:00:00:05:30:00:59:de(0xfffcee)
Latency: 0 msec
20:00:00:05:30:00:58:1e(0xfffc6c)
Timestamp Invalid.
20:00:00:05:30:00:59:1e(0xfffcef)
Latency: 0 msec
20:00:00:05:30:00:59:1e(0xfffcef)
Latency: 174860 msec
20:00:00:05:30:00:58:1e(0xfffc6c)
Note The values rendered by the FCtrace process do not reflect the actual latency across the switches. The
actual trace value interpretation is shown in the example below.
switch# sh fcns da vsan 600
VSAN 600
--------------------------------------------------------------------------
FCID TYPE PWWN (VENDOR) FC4-TYPEFEATURE
--------------------------------------------------------------------------
0xeb01e8 NL 210000203767f7a2 (Seagate) scsi-fcptarget
0xec00e4 NL 210000203767f48a (Seagate) scsi-fcp
0xec00e8 NL 210000203767f507 (Seagate) scsi-fcp
Total number of entries = 3
switch# fctrace fcid 0xeb01e8 vsan 600
Route present for 0xeb01e8
2000000530007ade(0xfffcee) ---> MDS originating the trace
Latency 0 msec
2000000c30575ec0(0xfffced) --->first hop MDS towards destination FCID
Latency 30820 msec
2000000c306c2440(0xfffceb) --> MDS which connects directly to the traced FCID (0xeb01e8)
Latency 0 msec

Cisco MDS 9000 Series Specifications

General

Category	Switch
Operating System	Cisco NX-OS
Ports	Varies by model
Protocols	Fibre Channel (FC), Fibre Channel over IP (FCIP), iSCSI
Redundancy	Redundant supervisors, power supplies, and fans
Management	Cisco Data Center Network Manager (DCNM), CLI, SNMP
Virtualization Support	VSANs (Virtual SANs)
Security Features	Fibre Channel Security Protocol (FC-SP)
Hot Swappable Components	power supplies, fans
Power Supply Options	AC and DC options available