Server Fault is a question and answer site for system and network administrators. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I'm trying to depreciate usage of VLAN 1 on my ProCurve switches; 1 is unused. I understand that VLAN 1 must exist, but I want to remove it from all ports, especially trunks between switches.

The problem I have is that stacking does not seem to work without VLAN 1.

I have changed the primary VLAN and management VLAN on all the switches:

(config)# primary-vlan 42
(config)# management-vlan 42
(config)# no vlan 1 untagged 25

Port 25 is the link between the 2 switches I'm testing with; the stack master and a member switch; I only want tagged traffic between the switches, no untagged frames.

show stacking on the master shows all members as "UP" but I can not telnet any of them:

Telnet failed: Connection timed out.

All switches have manually assigned (static) IP addresses on VLAN 42, and all exist in the same /25 subnet, as does my desktop. I can telnet the switches directly from my desktop to the individual switch IP addresses, just not from the master switch.

Do I need to reboot the switches to have the primary-vlan change take effect? Or is there something else I'm missing?

EDIT: show vlans output:

Status and Counters - VLAN Information

Maximum VLANs to support : 16                   
Primary VLAN : ADM   
Management VLAN : ADM   

802.1Q VLAN ID Name         Status      
-------------- ------------ ------------
1              LEGACY       Port-based  
12             PRD          Port-based  
14             IDMZ         Port-based  
15             LAN          Port-based  
16             WLS          Port-based  
17             PUB          Port-based  
18             SPW          Port-based  
20             PABX         Port-based  
42             ADM          Port-based  
share|improve this question
Which HP ProCurve switch model(s) are you using? – ewwhite Dec 17 '12 at 3:51
Sorry, I did forget that. The stack master is a 2510G-48, the member I'm testing with is a 2510-24. The other members in the stack are 2510G-24, 2510-48 and 2520-8-PoE. All show the same behaviour, and all are running latest available firmware. – fukawi2 Dec 17 '12 at 4:13
I'm just a bit rusty on procurve but try to mark the primary vlan as untagged. – eldblz Dec 17 '12 at 7:31
Can you also provide a exibit of command "show vlans" please? – eldblz Dec 17 '12 at 7:41
When setting up our 5400zl's we had to set one vlan as untagged and tag everything else. It just wouldn't work with all set to tagged. – kormoc Jan 29 '13 at 0:36
up vote 3 down vote accepted

When setting up our 5400zl's we had to set one vlan as untagged and tag everything else. It just wouldn't work with all set to tagged.

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.