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Error #422

tancat

802.1AD have small MTU value

Afegit per Roger Pueyo Centelles fa més de 6 anys. Actualitzat fa casi 4 anys.

Estat:
Tancat
Prioritat:
Normal
Categoria:
Network
Versió prevista:
Inici:
30-08-2017
Data de venciment:
% realitzat:

100%

Temps previst:
1:00 h
Temps invertit:

Descripció

802.1Q allows to me for use MTU value over 1500 on fragment and network functions normally, transperent. But in 802.1AD this value is 'jammed' on 1430 for me, I tested this with 'ping -s'
Thus, the network doesn't work between two nodes connected over ethernet. I just backed to 802.1Q in config files.

Actions #1

Actualitzat per Roger Pueyo Centelles fa més de 5 anys

  • Categoria s'ha establert a Network
  • Assignat a s'ha establert a Roger Pueyo Centelles
  • Versió prevista s'ha establert a v5.0.0

Suggestion: remove VLANs for routing?

Actions #2

Actualitzat per guifi pedro fa aproximadament 4 anys

Roger Pueyo Centelles va escriure:

Suggestion: remove VLANs for routing?

I agree that removing VLANs is better, we had a discussion on libremesh mailing list where there was a problem with a specific device

https://lists.libremesh.org/pipermail/lime-dev/2019-August/thread.html

Actions #3

Actualitzat per Roger Pueyo Centelles fa aproximadament 4 anys

  • Estat ha canviat de Nou a Resolt
  • % realitzat ha canviat de 0 a 100
  • Temps previst s'ha establert a 1:00 h

Hi Pedro,

Thanks for your comment and the links. Yes, using different VLANs for the routing protocol[s] was cool back when all interfaces were physical (eth0, eth1...) but started to become a mess with eth0.1 and so. 802.1ad VLANs was a good attempt, but drivers support was varied and mostly bad.

I took the decision of not using VLANs (neither 802.1q nor 802.1ad) for routing by default, as you can see in http://dev.qmp.cat/projects/qmp/repository/revisions/a9e636957d1d5b333759e9e647590a6f51d2ae3f . So, I guess, from qMp v5.0 on, they won't be there anymore.

Actions #4

Actualitzat per Roger Pueyo Centelles fa casi 4 anys

  • Estat ha canviat de Resolt a Tancat
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