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20-5
Cisco MDS 9000 Family Troubleshooting Guide, Release 3.x
OL-9285-05
Chapter 20 Troubleshooting IP Storage Services
IP Issues
• debug ips error
• debug ips islb [config | config-detail | flow | flow-detail }
• debug ips islb cfs error
• debug ips islb cfs [config | config-detail | flow | flow-detail }
• debug ips islb vrrp error
• debug ips islb vrrp [flow | flow-detail ]
IP Issues
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 IEEE
802.1Q, EtherChannel, and VRRP for iSCSI. This section includes the following topics:
• Verifying Basic Connectivity, page 20-5
• Verification of Switch Connectivity, page 20-7
• Verification of Static IP Routing, page 20-8
• Cannot Assign IP Address to an Interface, page 20-9
Note If you configure secondary VRRP IPv6 addresses on an IPFC VSAN interface, before a downgrading to
a release prior to Cisco Release 3.0(1), you must remove the secondary VRRP IPv6 addresses. This is
required only when you configure IPv6 addresses.
Verifying Basic Connectivity
Use the procedures in this section to verify that you have IP connectivity.
Verifying Basic Connectivity Using Device Manager
To verify basic connectivity using Device Manager, follow these steps:
Step 1 Choose IP > Routes to verify the static route to the remote device.
Step 2 Choose Interface > Ethernet and iSCSI to verify that the Gigabit Ethernet interface is up.
Verifying Basic Connectivity Using the CLI
To verify basic connectivity using the CLI, follow these steps:
Step 1 Use the ping or the ping ipv6 command to perform a basic check of host reachability and network
connectivity.
switch# ping 11.18.185.121
PING 11.18.185.121 (172.18.185.121): 56 data bytes
64 bytes from 11.18.185.121: icmp_seq=0 ttl=128 time=0.3 ms
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