Displaying Wwn Information; Link Initialization Wwn Usage; Configuring A Secondary Mac Address - Cisco AP775A - Nexus Converged Network Switch 5010 Configuration Manual

World Wide Names
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
Changes to the world-wide names should be made by an administrator or individual who is completely
Caution
familiar with switch operations.
This section includes the following topics:
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Displaying WWN Information

To display WWN information using Device Manager, choose FC > Advanced > WWN Manager. You
see the list of allocated WWNs.

Link Initialization WWN Usage

Exchange Link Protocol (ELP) and Exchange Fabric Protocol (EFP) use WWNs during link
initialization. The usage details differ based on the Cisco NX-OS software release.
Both ELPs and EFPs use the VSAN WWN by default during link initialization. However, the ELP usage
changes based on the peer switch's usage:
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As of Cisco SAN-OS Release 2.0(2b), the ELP is enhanced to be compliant with FC-SW-3.
Note

Configuring a Secondary MAC Address

To allocate secondary MAC addresses using Device Manager, follow these steps:
Step 1 Choose FC > Advanced > WWN Manager.
You see the list of allocated WWNs as shown in
Cisco MDS 9000 Family Fabric Manager Configuration Guide
37-6
Displaying WWN Information, page 37-6
Link Initialization WWN Usage, page 37-6
Configuring a Secondary MAC Address, page 37-6
If the peer switch ELP uses the switch WWN, then the local switch also uses the switch WWN.
If the peer switch ELP uses the VSAN WWN, then the local switch also uses the VSAN WWN.
Chapter 37
Figure 37-4.
OL-17256-03, Cisco MDS NX-OS Release 4.x
Advanced Features and Concepts