Setting The Router Port Cost For An Ex_Port; Upgrade, Downgrade, And Ha Considerations - HP A7533A - Brocade 4Gb SAN Switch Base Administrator's Manual

Every IFL has a default cost. The default router port cost values are:
1000 for legacy (v5.1 or XPath FCR) IFL
•
• 1000 for EX_Port IFL
• 10,000 for VEX_Port IFL
The FCR router port cost settings are 0, 1000, 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.
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 from the edge fabric to display these
link costs.

Setting the router port cost for an EX_Port

Initially, the router port cost value for an EX_Port is set automatically when the EX_Port is created with the
portCfgExport command. However, you can use the fcrRouterPortCost to modify the cost for that port.
You can configure the EX_ or VEX_Port with either 1000 or 10,000 values. If you wish to differentiate
between two EX_Port links with different speeds, you can assign 1000 to one link and 10,000 to the other
link.
For details about the use of any of the following commands, see the Fabric OS Command Reference.
To set and display the router port cost:
1. Issue the portDisable command to disable any port on which you want to set the router port cost.
switch:admin> portdisable 7/10
2. Enable EX_Port or VEX_Port mode with the portCfgEXPort or portCfgVEXPort command.
switch:admin> portcfgexport 7/10 -a 1
3. Issue the fcrRouterPortCost command to display the router port cost for each EX_Port.
switch:admin> fcrrouterportcost
Port
------------------------
7/3
7/4
7/9
7/10
7/13
10/0
You can also use the fcrRouteShow command to display the router port cost.
4. Issue the fcrRouterPortCost command with a port and slot number, to display the router port cost
for a single EX_Port.
switch:admin> fcrrouterportcost 7/10
Port
------------------------
7/10
5. Issue the fcrRouterPortCost command with a port and slot number and a specific cost, to set the
router port cost for a single EX_Port.
switch:admin> fcrrouterportcost 7/10 10000
Issue the fcrRouterPortCost command, to set the cost of the EX_Port back to the default.
6.
switch:admin> fcrrouterportcost 7/10 0
7. Issue the portEnable command to enable the ports that you disabled in step 1.
switch:admin> portenable 7/10

Upgrade, downgrade, and HA considerations

For HA, the router port cost is synchronized to the standby CP.
Cost
1000
1000
1000
1000
1000
1000
Cost
1000
Fabric OS 6.1.x administrator guide 325