Verifying Wwn Information; Link Initialization Wwn Usage; Configuring A Secondary Mac Address - Cisco N5010P-N2K-BE Software Configuration Manual

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S e n d f e e d b a c k t o n x 5 0 0 0 - d o c f e e d b a c k @ c i s c o . c o m

Verifying WWN Information

Use the show wwn commands to display the status of the WWN configuration. The following example
displays the status of all WWNs:
switch# show wwn status
Type
----
1
2,5
The following example displays the information for block ID 51:
switch# show wwn status block-id 51
WWNs in this block: 21:00:ac:16:5e:52:00:03 to 21:ff:ac:16:5e:52:00:03
Num. of WWNs:: Configured: 256 Allocated:
Block Allocation Status: FREE
The following example displays the WWN for a specific switch:
switch# show wwn switch
Switch WWN is 20:00:ac:16:5e:52:00:00

Link Initialization WWN Usage

Exchange Link Protocol (ELP) and Exchange Fabric Protocol (EFP) use WWNs during link
initialization. ELPs and EFPs both use the VSAN WWN by default during link initialization. However,
the ELP usage changes based on the peer switch's usage:
•
•

Configuring a Secondary MAC Address

To allocate secondary MAC addresses, perform this task:
Command
Step 1
switch# configuration terminal
Step 2
switch(config)# wwn secondary-mac wwn-id
range value
The following example shows how to configure the secondary MAC address:
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
Cisco Nexus 5000 Series Switch CLI Software Configuration Guide
43-6
Configured Available
---------- --------------
64 48 ( 75%)
524288 442368 ( 84%)
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 43 Advanced Fibre Channel Features and Concepts
Resvd. Alarm State
------ -----------
16 NONE
73728 NONE
0 Available: 256
Purpose
Enters configuration mode.
Configures the secondary MAC address. This
command cannot be undone.
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