Forum Discussion
Gorf_33479
Nimbostratus
NimbostratusLTM1600 - How to alter the default 'external' VLAN tag
Greetings all, for quite some time now I have used the default 'external' VLAN that came setup on our 1600's for the external VIPs. We are making some infrastructure changes, and the problem is that I want to alter that VLAN's tag from the default of 4093 to something else so that I can actually begin using it as a tagged interface (right now it is untagged on the switch).
When I go to alter the VLAN, it won't let me. Both the command line and web interface won't let me make that change. I don't want to have to delete it since it would require me to go through and alter all our Virtual Servers that use it. Is there any kind of work around for this?
Thanks!
- Chris_Miller
Altostratus
I'll wait for others who have done so to comment here, but I would expect the right thing would be to manually edit the config file 
hooleylistCirrostratus
I think Chris is correct. The simplest solution should be to edit the bigip_base.conf and reload the config.
Aaron
Gorf_33479HYeah I tried that as well. When I try to load the new config I get:[gorf@lb2:Standby] config vi bigip_base.conf [gorf@lb2:Standby] config b load Reading configuration from /defaults/config_base.conf. Reading configuration from /config/bigip_base.conf. Reading configuration from /config/bigip_sys.conf. Reading configuration from /usr/bin/monitors/builtins/base_monitors.conf. Reading configuration from /config/profile_base.conf. Reading configuration from /config/daemon.conf. Reading configuration from /config/bigip.conf. Reading configuration from /config/bigip_local.conf. Loading the configuration ... BIGpipe VLAN operation error: 01070290:3: Unsupported change to the vlan tag for vlan external. Please delete and recreate instead.
Hence the question about work arounds.- hooleylistBefore I posted, I tested on 10.2.1 and it worked. Which version are you testing on? I'll see if I can find info on this.
Thanks, Aaron - Gorf_33479And for reference, I am changing bigip_base from:
vlan external { tag 4093 interfaces 1.2 }
to:vlan external { tag 2 interfaces tagged 1.1 } - Gorf_33479Posted By hoolio on 02/23/2011 04:17 PM
Before I posted, I tested on 10.2.1 and it worked. Which version are you testing on? I'll see if I can find info on this.
Thanks, Aaron
BIG-IP 9.4.7 Build 320.1 Final - hooleylistI think changing the VLAN tag was supported starting in 10.0 as noted in CR33990 and the 10.0.0 release notes.
10.0.0 release notes:
http://support.f5.com/kb/en-us/products/big-ip_ltm/releasenotes/product/relnotes10_0_0.html
Editable VLAN tags
With this release, you can now change the VLAN tag that you initially assigned to a VLAN without having to delete and then recreate the VLAN.
Until then you'll need to remove references to the VLAN, delete it and recreate it with the updated tag. You could simplify this process slightly by renaming the bigip.conf, loading the config, editing the bigip_base.conf, renaming the bigip.conf back and reloading the config. Note I haven't tested this, but it seems like it should work.
Aaron - Gorf_33479lame. Well maybe this is just a good excuse to consider updating to the 10.x firmware.
- hooleylistYep... the request was around for ages and was finally implemented. There are a lot of great reasons to upgrade to 10.2.1. This is one of them.
Aaron
