Npv Traffic Management Guidelines - HP Cisco MDS 9020 - Fabric Switch Configuration Manual

Chapter 13 Configuring N Port Virtualization
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

NPV Traffic Management Guidelines

When deploying NPV traffic management, follow theseguidelines:
•
•
•
•
•
•
Configuring NPV
When you enable NPV, your system configuration is erased and the system is rebooted with NPV mode
enabled.
We recommend that you save your current configuration either bootflash or a TFTP server before NPV
Note
(if the configuration is required for later use). Use the following commands to save either your non-NPV
or NPV configuration:
switch# copy running bootflash:filename
The configuration can be reapplied later using the following command:
switch# copy bootflash:filename running-config
SUMMARY STEPS
1.
2.
3.
4.
On the 91x4 platform, before you upgrade to 3.2(2b) or downgrade from 3.2(2b), shut the F-ports
Note
connected to NPIV capable hosts, and then disable the NPIV feature. After the upgrade or downgrade is
complete, enable the NPIV feature and up the F-ports.
OL-16184-01, Cisco MDS SAN-OS Release 3.x
Use NPV traffic management only when the automatic traffic engineering by the NPV device is not
sufficient for the network requirements.
Do not configure traffic maps for all the servers. For non-configured servers, NPV will use
automatic traffic engineering.
Configure the Persisten FC ID on the core switch. Traffic engineering directs the associated server
interface to external interfaces that lead to the core switch.
Server interfaces configured to a set of external interfaces cannot use any other available external
interfaces, even if the configured interfaces are not available.
Do not configure non-disruptive load balancing because this involves moving a device from one ex
external interface to another interface. Moving the device between external interfaces requires NPV
relogin to the core switch through F port leading to traffic disruption.
Link a set of servers to a core switch by configuring the server to a set of external interfaces that are
linked to the core switch.
Enable NPIV on the NPV core switch.Enable NPV on the NPV device.
Configure the interfaces connected to the NPV core switch as NP ports.
Configure NPV link as an F port on the NPV core switch.
Configure server link on the NPV device.
Cisco MDS 9000 Family CLI Configuration Guide
Configuring NPV
13-7