Red Hat Bugzilla – Bug 465794
problem setting MTU > 1500 to bridge devices
Last modified: 2008-10-07 10:39:05 EDT
Created attachment 319552 [details]
set MTU on interface before adding to bridge.
Description of problem:
When bringing up interface (with ifup or service network start) which has MTU>1500 set in ifcfg-ethX file, but is also a part of some bridge device (BRIDGE=br0), MTU on ethX is not set to specified value. As a result, MTU of whole bridge device remains 1500.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. Configure ethX interface (file /etc/sysconfig/network-scripts/ifcfg-ethX) with
ethX has to be GigE interface in order to increase MTU.
2. Configure br0 interface (file /etc/sysconfig/network-scripts/ifcfg-br0)
3. bring up ethX and br0
MTU on ethX and br0 is 1500
MTU on ethX and br0 should be 8000
Attached patch solves this problem - MTU is explicitly set to specified value before adding ethX to bridge.
Not exactly a duplicate of 463014, but the patch there will solve it. Marking as a duplicate.
*** This bug has been marked as a duplicate of bug 463014 ***