Not able to create more than 256 VLAN in N5k

Answered Question
Jun 24th, 2012
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I am not able to create more than 256 VLAN in Cisco Nexus 5010 switch. While creating I am getting "No VLAN resources available for VLAN creation" Details below -



Switch model - 5010

Software : NX OS 4.0 (1a)


Error Message:

Nexus_5010(config)# vlan 417

ERROR: No VLAN resource available for VLAN creation


Nexus_5010(config)#



VLAN resource command output -


Nexus_5010# sh resource vlan



     Resource               Min       Max      Used    Unused     Avail

    -----------            -----     -----    ------  --------   -------

     vlan                    16       256       256         0         0


Nexus_5010#



Sh  version of the switch -


Nexus_5010# sh ver

Cisco Nexus Operating System (NX-OS) Software

TAC support: http://www.cisco.com/tac

Copyright (c) 2002-2008, Cisco Systems, Inc. All rights reserved.

The copyrights to certain works contained herein are owned by

other third parties and are used and distributed under license.

Some parts of this software are covered under the GNU Public

License. A copy of the license is available at

http://www.gnu.org/licenses/gpl.html.



Software

  BIOS:      version 1.2.0

  loader:    version N/A

  kickstart: version 4.0(1a)N1(1)

  system:    version 4.0(1a)N1(1)

  BIOS compile time:       06/19/08

  kickstart image file is: bootflash:/n5000-uk9-kickstart.4.0.1a.N1.1.bin

  kickstart compile time:  12/3/2008 5:00:00 [12/03/2008 18:38:37]

  system image file is:    bootflash:/n5000-uk9.4.0.1a.N1.1.bin

  system compile time:     12/3/2008 5:00:00 [12/03/2008 19:14:18]





Hardware

  cisco Nexus5010 Chassis ("20x10GE/Supervisor")

  Intel(R) Celeron(R) M CPU    with 2074308 kB of memory.

  Processor Board ID JAF1423EBLE



  Device name:Nexus_5010 

bootflash:    1003520 kB



Kernel uptime is 613 day(s), 14 hour(s), 46 minute(s), 30 second(s)



Last reset

  Reason: Unknown

  System version: 4.0(1a)N1(1)

  Service:



plugin

  Core Plugin, Ethernet Plugin

Nexus_5010#

Correct Answer by Ivan Shirshin about 5 years 1 month ago

Hi,


Yes, it seems the limit was increased in later releases. I have done a quick search and limit was bumped up to 512 vlans in 4.1(2)E1(1)  and later.


Kind Regards,
Ivan

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Ivan Shirshin Sun, 06/24/2012 - 22:28
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  • Cisco Employee,

Hi,


This switch tested limit is of 256 vlans. This includes 5 reserved vlans and 251 user configured vlans.

NX-OS enforces this limit and you cannot create more than that. Looking at your resources, you have already used up all of them:


Nexus_5010# sh resource vlan


     Resource               Min       Max      Used    Unused     Avail

    -----------            -----     -----    ------  --------   -------

     vlan                    16       256       256         0         0




Kind Regards,
Ivan

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netops044 Sun, 06/24/2012 - 22:54
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Cisco Nexus 5000 Series Configuration Limits for Cisco NX-OS Release 5.0(3)N1(1b) - http://www.cisco.com/en/US/docs/switches/datacenter/nexus5000/sw/configuration_limits/limits_503/nexus_5000_config_limits_503_n1_1b.html


The above document saysmaximm limit is 507..


Table 1     Cisco NX-OS Release 5.0(3) Layer 2 Topology Configuration Limits

Feature

Cisco Nexus 5000 Platform

Cisco Nexus 5500 Platform

Verified Topology1

Maximum Limits2

Verified Topology1

Maximum Limits2

Active VLANs/VSANs per switch

504

507

(504 when FCoE is enabled)

31 are set aside for VSANs and the remaining are for VLANs.

4013

(31 are set aside for VSANs and the remaining are for VLANs)

4013

(31 are set aside for VSANs and the remaining are for VLANs)


Though it s for different software. My questions are -


1. Does max vlan dpends on software ?

2. Will I be getting 507 supported VLAN if i upgrade the software of my switch from 4.0 to 5.0 ?

Correct Answer
Ivan Shirshin Sun, 06/24/2012 - 23:06
User Badges:
  • Cisco Employee,

Hi,


Yes, it seems the limit was increased in later releases. I have done a quick search and limit was bumped up to 512 vlans in 4.1(2)E1(1)  and later.


Kind Regards,
Ivan

**Please grade this post if you find it useful.

netops044 Mon, 06/25/2012 - 02:04
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Yes Ivan, I have used 4.1 and now VLAN limit increased to 507.


Thanks.

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