Link Initialization Wwn Usage; Configuring A Secondary Mac Address; Displaying Wwn Information - Cisco DS-X9530-SF1-K9 - Supervisor-1 Module - Control Processor Configuration Manual

Configuring a Secondary MAC Address

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 .
Table 25-1
NAA Address
IEEE 48-bit address
IEEE extended
IEEE registered
Caution Changes to the world-wide names should be made by an administrator or individual who is completely
familiar with switch operations.

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 SAN-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:
•
•
Note As of Cisco SAN-OS Release 2.0(2b), the ELP is enhanced to be compliant with FC-SW-3.
Configuring a Secondary MAC Address
To allocate secondary MAC addresses, follow these steps:
Command
Step 1
switch# config t
switch(config)#
Step 2
switch(config)# wwn secondary-mac 00:99:55:77:55:55 range 64
This command CANNOT be undone.
Please enter the BASE MAC ADDRESS again: 00:99:55:77:55:55
Please enter the mac address RANGE again: 64
From now on WWN allocation would be based on new MACs.
Are you sure? (yes/no) no
You entered: no. Secondary MAC NOT programmed
switch(config)#

Displaying WWN Information

Use the show wwn commands to display the status of the WWN configuration. See Examples
25-5.
Cisco MDS 9000 Family Configuration Guide
25-6
Standardized NAA WWN Formats
NAA Type
Type 1 = 0001b
Type 2 = 0010b
Type 5 = 0101b
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 25 Advanced Features and Concepts
WWN Format
000 0000 0000b
Locally assigned
IEEE company ID: 24 bits
Purpose
Enters configuration mode.
Configures the secondary MAC
address. This command cannot
be undone.
OL-6973-03, Cisco MDS SAN-OS Release 2.x
48-bit MAC address
48-bit MAC address
VSID: 36 bits
25-3 to