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Chapter 33
Configuring FCIP
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 .
By default, time stamp control is disabled in all switches in the Cisco MDS 9000 Family. If a packet
arrives within a 2000 millisecond interval (+ or –2000 ms) from the network time, that packet is
accepted.
The default value for packet acceptance is 2000 microseconds.
Note
If the time-stamp option is enabled, be sure to configure NTP on both switches (see the
Note
Configuration" section on page
Do not enable time stamp control on an FCIP interface that has tape acceleration or write acceleration
Tip
configured.
To enable or disable the time stamp control, follow these steps:
Command
Step 1
switch(config-if)# time-stamp
Please enable NTP with a common time
source on both MDS Switches that are
on either side of the FCIP link
switch(config-if)# no time-stamp
Step 2
switch(config-if)# time-stamp
acceptable-diff 4000
switch(config-if)# no time-stamp
acceptable-diff 500
Step 3
switch(config-if)# no shutdown
OL-6973-03, Cisco MDS SAN-OS Release 2.x
4-18).
Purpose
Enables time stamp checking for received packets with a
default acceptable time difference of 2000 ms.
Disables (default) time stamps.
Configures the packet acceptance time. The valid range is
from 500 to 10,000 ms.
Deletes the configured time difference and reverts the
difference to factory defaults. The default difference is a
2000 millisecond interval from the network time.
Enables the interface.
Cisco MDS 9000 Family Configuration Guide
Advanced FCIP Interface Configuration
"NTP
33-15
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