Users Guide

Fabric OS Administrator’s Guide 613
53-1002920-02
FC router port cost configuration
26
50 3/14 1182 50:00:51:e4:8f:8f:74:9e 10:00:00:05:1e:48:f8:00
50 3/15 1183 50:00:51:e4:8f:8f:74:9f 10:00:00:05:1e:48:f8:00
9. Enter the fcrIclPathBwMonitor command to monitor and report path bandwidth imbalances for
each edge fabric.
The following example enables the monitoring and reporting of bandwidth balances and
imbalances, and displays the ICL path bandwidth state for each fabric.
switch:admin> fcriclpathbwmonitor --show
ICL Path Bandwidth state :Disabled
switch:admin> fcriclpathbwmonitor --enable
ICL bandwidth balance functionality is enabled
Pluto:FID2:root> fcriclpathbwmonitor --show
ICL Path Bandwidth state :Enabled
FABRIC SLOT-3 BW SLOT-6 BW STATE
===============================================
48 128 128 BALANCED
126 64 128 UNBALANCED
FC router port cost configuration
The FC router port cost is set automatically. This section provides information about the router port
cost and describes how you can modify the cost for a port if you want to change the default value.
FC routers optimize the usage of the router port links by directing traffic to the link with the
smallest router port cost. The FC router port cost is similar to the link cost setting available on
E_Ports, which allows you to customize traffic flow. The router port link cost values are either 0,
1,000, or 10,000. The router module chooses the router port path based on the lowest cost for
each FID connection. If multiple paths exist where one path costs less than the others, then the
lowest cost path is used. If exchange-based routing has not been disabled and multiple paths exist
with the same lowest cost, there will be load sharing over these paths.
The FC router port cost feature optimizes the usage of the router port links by directing the traffic to
a link with a smaller cost.
Every IFL has a default cost. The default router port cost values are:
• 1,000 for a legacy (v5.1 or XPath FCR) IFL
• 1,000 for an EX_Port IFL
• 10,000 for a VEX_Port IFL
The FC router port cost settings are 0, 1,000, or 10,000. If the cost is set to 0, the default cost will
be used for that IFL. The FC router port cost is persistent and is saved in the existing port
configuration file.
FC router port cost is passed to other routers in the same backbone. Link costs from the front
domain to the translate (xlate) domain remain at 10,000. You can use the lsDbShow command
from the edge fabric to display these link costs.