S e n d d o c u m e n t a t i o n c o m m e n t s t o m d s f e e d b a c k - d o c @ c i s c o . c o m
20-9
Cisco MDS 9000 Family Troubleshooting Guide, Release 3.x
OL-9285-05
Chapter 20 Troubleshooting IP Storage Services
FCIP Issues
Cannot Assign IP Address to an Interface
You may encounter a problem when assigning an IP address to an interface. If that IP address is already
in use by another interface (for example, a remote VRRP interface), you may see the following message:
Invalid configuration: this IP address overlaps with another interface in network
You can recover from this problem by using the
shutdown
CLI command on that VRRP interface,
programming the IP address, and then using the
no shutdown
CLI command on that VRRP interface.
FCIP Issues
This section contains information on troubleshooting FCIP tunnels with and without special frames and
includes the following topics:
•
One-to-One FCIP Tunnel Creation and Monitoring, page 20-10
•
One-to-Three FCIP Tunnel Creation and Monitoring, page 20-20
•
FCIP Profile Misconfiguration Examples, page 20-21
•
FCIP Interface Misconfiguration Examples, page 20-24
•
FCIP Special Frame Tunnel Creation and Monitoring, page 20-30
•
Special Frame Misconfiguration Example, page 20-33
•
Troubleshooting FCIP Link Flaps, page 20-34
•
Troubleshooting FCIP ISL Link Failures, page 20-34
•
Troubleshooting FCIP and Compression, page 20-35
Note
FCIP Tape acceleration does not work if the FCIP port is part of a PortChannel or if there are multiple
paths between the initiator and the target port. Such a configuration might cause SCSI discovery failure
or broken write or read operations.
