Quantcast
Channel: Sophos User Bulletin Board
Viewing all articles
Browse latest Browse all 14361

Jumbo frames cannot be enabled when both receive checksum offload and receive hashing

$
0
0
I'm trying to get Jumbo Frames running on my network, but UTM9 complains when I set MTU to 9000:

Code:

2013:01:20-16:39:26 fw01 kernel: [ 4937.886462] 8021q: adding VLAN 0 to HW filter on device lag0
2013:01:20-16:39:26 fw01 kernel: [ 4937.921404] e1000e 0000:01:00.0: eth1: Jumbo frames cannot be enabled when both receive checksum offload and receive hashing are enabled.  Disable one of the receive offload features before enabling jumbos.
2013:01:20-16:39:37 fw01 kernel: [ 4949.200642] 8021q: adding VLAN 0 to HW filter on device lag0
2013:01:20-16:39:37 fw01 kernel: [ 4949.262578] e1000e 0000:01:00.0: eth1: Jumbo frames cannot be enabled when both receive checksum offload and receive hashing are enabled.  Disable one of the receive offload features before enabling jumbos.
2013:01:20-16:55:15 fw01 kernel: [ 5887.447083] e1000e 0000:01:00.0: eth1: Jumbo frames cannot be enabled when both receive checksum offload and receive hashing are enabled.  Disable one of the receive offload features before enabling jumbos.

Anyone know where I can disable one of the offload features? And which one would be best to disable?

Is this possibly a bug?
I found this thread discussing that rxhash should be disabled with mtu larger than 1500 on e1000 driver

Viewing all articles
Browse latest Browse all 14361

Trending Articles