Rejecting Duplicate Pwwns; About Name Server Database Entries; Displaying Name Server Database Entries - Cisco AJ732A - MDS 9134 Fabric Switch Configuration Manual
Cisco nexus 5000 series switch cli software configuration guide, nx-os 4.0(1a)n1 (ol-16597-01, january 2009)
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Chapter 41
Managing FLOGI, Name Server, FDMI, and RSCN Databases
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
Rejecting Duplicate pWWNs
To reject duplicate pWWNs, perform this task:
Command
Step 1
switch# configuration terminal
switch(config)#
Step 2
switch(config)# fcns reject-duplicate-pwwn vsan
vsan-id
switch(config)# no fcns reject-duplicate-pwwn
vsan vsan-id
About Name Server Database Entries
The name server stores name entries for all hosts in the FCNS database. The name server permits an Nx
port to register attributes during a PLOGI (to the name server) to obtain attributes of other hosts. These
attributes are deregistered when the Nx port logs out either explicitly or implicitly.
In a multiswitch fabric configuration, the name server instances running on each switch shares
information in a distributed database. One instance of the name server process runs on each switch.
Displaying Name Server Database Entries
The following example shows how to display the name server database for all VSANs:
switch# show fcns database
--------------------------------------------------------------------------
FCID
--------------------------------------------------------------------------
0x010000
0x010001
0x010002
0x010100
0x020000
0x020100
0x020200
The following example shows how to display the name server database and statistical information for a
specified VSAN:
switch# show fcns database vsan 1
VSAN 1:
--------------------------------------------------------------------------
FCID
--------------------------------------------------------------------------
0x030001
0x030101
0x030200
0xec0001
Total number of entries = 4
The following example shows how to display the name server database details for all VSANs:
switch# show fcns database detail
OL-16597-01
TYPE
PWWN
N
50:06:0b:00:00:10:a7:80
N
10:00:00:05:30:00:24:63 (Cisco)
N
50:06:04:82:c3:a0:98:52 (Company 1)
N
21:00:00:e0:8b:02:99:36 (Company A)
N
21:00:00:e0:8b:08:4b:20 (Company A)
N
10:00:00:05:30:00:24:23 (Cisco)
N
21:01:00:e0:8b:22:99:36 (Company A)
TYPE
PWWN
N
10:00:00:05:30:00:25:a3 (Cisco)
NL
10:00:00:00:77:99:60:2c (Interphase)
N
10:00:00:49:c9:28:c7:01
NL
21:00:00:20:37:a6:be:14 (Seagate)
Cisco Nexus 5000 Series Switch CLI Software Configuration Guide
Purpose
Enters configuration mode.
Logs out devices when they log into the
fabric if the pWWNs already exist.
Overwrites the first device's entry in the
name server database with the new device
having the same pWWN (default).
(VENDOR)
FC4-TYPE:FEATURE
scsi-fcp fc-gs
ipfc
scsi-fcp 250
scsi-fcp
ipfc
scsi-fcp
(VENDOR)
FC4-TYPE:FEATURE
ipfc
scsi-fcp
Name Server Proxy
41-3
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