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Bug #6685

closed

LAGG groups get stuck with an unconfigurable 1400MTU with em NICs.

Added by Nick Zurku about 9 years ago. Updated about 6 years ago.

Status:
Closed
Priority:
Normal
Assignee:
-
Category:
Interfaces
Target version:
-
Start date:
08/08/2016
Due date:
% Done:

0%

Estimated time:
Plus Target Version:
Release Notes:
Affected Version:
2.3.2
Affected Architecture:
amd64

Description

I'm not sure of the exact scope of this issue, but I can at least say it happens when reproducing my environment.

Setup:
pfSense 2.3.2 x64
6x 1GbE Intel em interfaces.
2 1GbE interfaces combined into lagg0

Issue:
pfSense GUI shows that and the actual NICs are running at 1400MTU causing traffic issues on the LAN side downstream from the LAGG.
No interface changes can be made to increase the MTU on interfaces/VLANs involved in the LAGG.

I've attached the interfaces/vlans/lagg config XML that will start the issue.

Files

pfsense-lagg1440mtu-issue.xml (4.96 KB) pfsense-lagg1440mtu-issue.xml interfaces/vlans/lagg config XML that will start the issue Nick Zurku, 08/08/2016 10:52 AM
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 #1

Updated by Jim Pingle about 9 years ago

  • Status changed from New to Feedback

We don't have anything that would be forcing that to 1400 that I can see. I have a local setup here with LAGG and VLANs and it's running at 1500 MTU all-around but it's igb.

If there is something specific setting that for em, it would be a problem in FreeBSD directly and not a problem in pfSense.

Is there any way you could try to replicate this on plain FreeBSD 10.3 with the same hardware?

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 #2

Updated by Jim Pingle about 6 years ago

  • Status changed from Feedback to Closed

No feedback received.

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