NX9K Extended VLANs

[zekebashi]

Hello,

I have been trying to configure some extended VLANs on a  Nexus9000 93180YC-EX but with no luck. I need to create these two vlans 4089 and 4091, which are system reserved VLANs. We do have 2 NX5Ks where these VLANs were defied and are in production. Does anyone know how to create extended VLANs on the NX9Ks?

Thanks in advance,

~zK

[balaji.bandi]

have you tried below :

• The no system vlan vlan-id reserve command changes the range for reserved VLANs to the default range of 3968-4095 after the device is reloaded.

• Use the show system vlan reserved command to verify the range of the current and future reserved VLAN ranges.

this guide for reference :

https://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus9000/sw/7-x/layer2/configuration/guide/b_Cisco_Nexus_9000_Series_NX-OS_Layer_2_Switching_Configuration_Guide_7x/b_Cisco_Nexus_9000_Series_NX-OS_Layer_2_Switching_Configuration_Guide_7x_ch...

[zekebashi]

Yes, I've tried that but that sill didn't work.

[balaji.bandi]

Can you post the output which requested to see what you have in the configuration.

[paul driver]

Hello

Not so sure you can utilize the internal Vlans? - My understanding you cannot do this. and when you apply no system vlan xx internal reserve it will just default back to the original internal range 

[zekebashi · Accepted solution]

I was able to change the default reserved VLANs on the NX9K. This is how I was able to accomplish that:

1- Removed the existing reserved VLANs, which is a block of 128 vlan-ids (3968-4096)

2- Saved the config (copy running-config startup-config/ wr)

3- Reloaded the switch (this is a must do step)

4- Specified a new block of 128 (I specified this range 3771-3898)

5- Reloaded the switch (this is a must do step) 

Thanks for your input everyone!

Here are the commands I used:

show vlan internal usage

no system vlan 3968 reserved

wr

reload

sh vlan internal us

system vlan 3771 reserved

wr

reload

[Reza Sharifi]

Thanks for the feedback and the steps!