Mailing List Archive

George Yalamov wrote:

> I'm new in Foundry yet but plan tu use FastIron Edge X Series. And I'm
> wondering how to rewrite VLAN ID on egress and ingress to one trunk
> port. let say that I have trunk port with multiple VLANs A, B, C and
> etc. Also have vlan D configured on the swtich. I want to bridge vlan B,
> C and D. Is it possible to do that ? Or to rewrite vlan ID C on ingress
> to D and on egress change vlan ID D to original ID C. My be there is a
> way to do that?
>
> Apologize if you find this guestion stupid.

AFAIK, it is not possible atm, you will have to change all your VLAN :(

A few ISP (myself included and at least one IX) have asked for this feature but
it would seems that it can/will not be implemented with the current ASIC. I
think the feature is "under consideration" at Foundry (if someone knows better
please stand up).

Thomas
--
Exa Networks Limited - UK - AS30740 - www.exa-networks.co.uk
nic-handle : MANG-RIPE website : thomas.mangin.me.uk
GPG key ID : 0xFB8B81A1 PGP key : /pgp.html
Inoc-DBA # : 30740*TOM Office # : +44 (0) 845 145 1234

http://www.ispaawards.org.uk/categories/broadl_business.htm
http://www.ispaawards.org.uk/categories/BestBusiness.htm
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 189 bytes
Desc: OpenPGP digital signature
Url : https://puck.nether.net/pipermail/foundry-nsp/attachments/20060523/04b73d4d/attachment.bin

Hi George/Thomas,

On Tue, 2006-05-23 at 14:11 +0100, Thomas Mangin wrote:
> George Yalamov wrote:
>
> > Is it possible to do that ? Or to rewrite vlan ID C on ingress
> > to D and on egress change vlan ID D to original ID C. My be there is a
> > way to do that?
> >
> > Apologize if you find this guestion stupid.
>
> AFAIK, it is not possible atm, you will have to change all your VLAN :(

Or, alternatively (and ghettotastic but practical), if you've got ports
to spare and it's not a whole lot of VLANs you need to rewrite, just
physically bridge and connect an untagged port in one of the VLANs you'd
like to rewrite with an untagged port in the new VLAN. It's not pretty
and a pain in the neck to have to do it that way, but can get the job
done if needed. It's about time Foundry started including a CLI-based
solution though..

Cheers,

--
---
Erik Haagsman
Network Architect
We Dare BV
Tel: +31(0)10-7507008
Fax: +31(0)10-7507005
http://www.we-dare.nl

Dear George:


To rewrite VLAN ID, you need Foundry BigIron MG Series or NetIron. This feature is called VLAN Translation.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: https://puck.nether.net/pipermail/foundry-nsp/attachments/20060524/903c9cee/attachment.html