Cisco MDS 9000 Series Troubleshooting Guide

Send comments to mdsfeedback-doc@cisco.com.
5-2
Cisco MDS 9000 Family Troubleshooting Guide
OL-5183-02, Cisco MDS SAN-OS Release 1.3
Chapter 5 Troubleshooting IP Storage Issues
Troubleshooting IP Connections
Troubleshooting IP Connections
If you suspect that all or part of your IP connection has failed, you can verify that by performing one or
more of the procedures in this section. Using these procedures, you can verify connectivity for IP,
subinterfaces/802.1q, EtherChannel, and VRRP for iSCSI.
Verifying Basic Connectivity
Step 1 Perform a basic check of host reachability and network connectivity using the ping command. A sample
output of the ping command follows:
switch# ping 172.18.185.121
PING 172.18.185.121 (172.18.185.121): 56 data bytes
64 bytes from 172.18.185.121: icmp_seq=0 ttl=128 time=0.3 ms
64 bytes from 172.18.185.121: icmp_seq=1 ttl=128 time=0.1 ms
64 bytes from 172.18.185.121: icmp_seq=2 ttl=128 time=0.2 ms
64 bytes from 172.18.185.121: icmp_seq=3 ttl=128 time=0.2 ms
64 bytes from 172.18.185.121: icmp_seq=4 ttl=128 time=0.1 ms
64 bytes from 172.18.185.121: icmp_seq=5 ttl=128 time=0.1 ms
--- 172.18.185.121 ping statistics ---
6 packets transmitted, 6 packets received, 0% packet loss
round-trip min/avg/max = 0.1/0.1/0.3 ms
Step 2 Verify route to remote device using sh ip route, traceroute, and sh arp commands. A sample output of
the sh ip route command follows:
switch # sh ip route
Codes: C - connected, S - static
Default gateway is 172.18.185.97
C 172.18.185.96/27 is directly connected, mgmt0
C 172.18.189.128/26 is directly connected, gigabitethernet4/7
A sample output of the traceroute command follows. The route is using int GigE, verified using the sh
arp command.
switch# traceroute 172.18.185.121
traceroute to 172.18.185.121 (172.18.185.121), 30 hops max, 38 byte packets
1 172.18.185.121 (172.18.185.121) 0.411 ms 0.150 ms 0.146 ms
Another sample output of the traceroute command follows. This route is using int mgmt0, verified using
the sh arp command.
switch# traceroute 10.82.241.17
traceroute to 10.82.241.17 (10.82.241.17), 30 hops max, 38 byte packets
1 172.18.189.129 (172.18.189.129) 0.413 ms 0.257 ms 0.249 ms
2 172.18.0.33 (172.18.0.33) 0.296 ms 0.260 ms 0.258 ms
3 10.81.254.69 (10.81.254.69) 0.300 ms 0.273 ms 0.277 ms
4 10.81.254.118 (10.81.254.118) 0.412 ms 0.292 ms 0.287 ms
5 10.83.255.81 (10.83.255.81) 0.320 ms 0.301 ms 0.310 ms
6 10.83.255.163 (10.83.255.163) 0.314 ms 0.295 ms 0.279 ms
7 10.82.241.17 (10.82.241.17) 48.152 ms 48.608 ms 48.423 ms

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