21-18
Cisco ONS 15454 Procedure Guide, R5.0
March 2005
Chapter 21 DLPs A400 to A499
DLP-A439 Change Distance Extension Port Settings for the FC_MR-4 Card
Step 5
Return to your originating procedure (NTP).
DLP-A439 Change Distance Extension Port Settings for the FC_MR-4 Card
Step 1
In node view, double-click the FC_MR-4 card where you want to change the port settings.
Step 2
Click the
Provisioning > Port > Distance Extension
tabs.
Step 3
Modify any of the settings described in
Purpose
This task changes the distance extension parameters for FC_MR-4 ports.
Tools/Equipment
None
Prerequisite Procedures
DLP-A60 Log into CTC, page 17-66
Required/As Needed
As needed
Onsite/Remote
Onsite or remote
Security Level
Provisioning or higher
Table 21-4
FC_MR-4 Card Distance Extension Port Settings
Parameter
Description
Options
Port
(Display only.) The card port number.
1 through 4
Enable
Distance
Extension
If checked, allows additional distance by providing a
GFP-T based flow control scheme. It enables the node to be
a part of a Storage Area Network (SAN) with
long-distance, remote nodes. If left unchecked, the
remaining options are not available for editing. If Distance
Extension is enabled, set the connected Fibre Channel
switches to Interop or Open Fabric mode, depending on the
Fibre Channel switch. By default, the FC_MR card will
interoperate with the Cisco MDS storage products.
—
Auto Detect
Credits
If checked, enables the node to detect the transmit credits
from a remote node. Credits are used for link flow control
and for Extended Link Protocol (ELP) login frames
between Fibre Channel/fiber connectivity (FC/FICON)
Switch E ports.
—
Credits
Available
Sets the number of credits if an ELP login frame setting is
missing or if the ELP login frame cannot be detected.
Credits Available is editable only if Auto Detect Credits is
unchecked.
Note
Longer distances between connected devices need
more credits to compensate for the latency
introduced by the long-distance link. The value
should never be greater than the number of credits
supported by the FC/FICON port.
Numeric. 2 through
256, multiples of 2 only
Summary of Contents for ONS 15454 Series
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Page 44: ...Tasks xliv Cisco ONS 15454 Procedure Guide R5 0 December 2004 ...
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