HP AA979A - StorageWorks SAN Switch 2/8V, Administrator'S Manual, Page: 237 / 465

Fabric OS 5.3.0 administrator guide 239
The
fcrFabricShow
command displays the static IPv6 addresses for each FC router and each edge
fabric switch connected to the EX_Ports.
fcr:admin> fcrfabricshow
FCR WWN: 10:00:00:05:1e:13:59:00, Dom ID: 2, Info: 10.32.156.52
1080::8:800:200C:1234/64,
"fcr_mars_9"
EX_Port FID Neighbor Switch Info (WWN, enet IP, name)
-------------------------------------------------------------------
7 10 10:00:00:05:1e:34:11:e5 10.32.156.33 "mojo_10"
1080::8:8FF:FE0C:417A/64
4 116 10:00:00:05:1e:37:00:44 10.32.156.34 "mojo_11"
FCR WWN: 10:00:00:05:1e:12:e0:00, Dom ID: 100, Info:10.32.156.50
1080::8:60F:FE0C:456A/64
"fcr_mars_8"
EX_Port FID Neighbor Switch Info (WWN, enet IP, name)
-------------------------------------------------------------------
4 95 10:00:00:05:1e:37:00:45 10.32.156.31 "mojo_5"
Configuring the FC Router port cost (optional)
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 1000 or 10,000. The router module
chooses the router port path based on the lowest cost per FID connection. If exchanged based routing has
not been disabled and multiple paths exist with the same lowest cost, there will be load sharing over these
paths.
Implementing the router port cost feature optimizes the usage of the router port links by directing the traffic
to a link with a smaller cost. For example, if there are EX- and VEX_Port connections to the same edge
fabric, the traffic will be directed through the EX_Port link.
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.
Using router port cost
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
Manual .
In order to make any changes to an EX- and VEX_Port, the
-a
admin option must be enabled using the
portcfgexport
or
portcfgvexport
command. However, to make changes to the router port cost, the
port must be disabled using
portdisable
.
To set the cost of an EX_Port:
switch:admin> fcrrouterportcost 7/10 10000