topic Re: Enabling Jumbo Frames on Dl385p Gen8 running Solaris 10 8/11 (u10) with HP 331FLR Adapter in ProLiant Servers (ML,DL,SL)

Enabling Jumbo Frames on Dl385p Gen8 running Solaris 10 8/11 (u10) with HP 331FLR Adapter

ScreechOwl — Mon, 29 Jul 2013 18:50:11 GMT

Hi,

I am having trouble enabling Jumbo Frames on my NICs. I don't know what it is that I am doing wrong. My setup:

ProLiant DL385p Gen 8 Server (Product Part# 686853-S01)
. It has a HP Ethernet 1Gb 4-port 331FLR Adapter. I've installed Solaris 10 8/11 (u10) on this server. I have also installed patch 147441-21 as recommended.

I installed HP's BRCMbge-15.2.3(a) driver as recommended.

I cannot set an MTU size greater than 1500 using 'ifconfig'.

bash-3.2# ifconfig bge0 mtu 9000

ifconfig: setifmtu: SIOCSLIFMTU: bge0: Invalid arguement

Can this HP adapter support jumbo frames?

Re: Enabling Jumbo Frames on Dl385p Gen8 running Solaris 10 8/11 (u10) with HP 331FLR Adapter

BSeklecki — Tue, 30 Jul 2013 19:23:41 GMT

Try:

% sudo ndd /dev/qfe \?

Look for default_mtu.

% sudo ndd -set /dev/qfe default_mtu=9000

You might need to set it in /kernel/drv/bge.conf or $(find /kernel -name bge.conf) location

Re: Enabling Jumbo Frames on Dl385p Gen8 running Solaris 10 8/11 (u10) with HP 331FLR Adapter

BSeklecki — Fri, 02 Aug 2013 13:52:03 GMT

Err replace /dev/qfe with /dev/bge in your platform. ~BAS

Re: Enabling Jumbo Frames on Dl385p Gen8 running Solaris 10 8/11 (u10) with HP 331FLR Adapter

ScreechOwl — Mon, 05 Aug 2013 16:08:23 GMT

Found the answer. The issue is with the driver supplied by HP. Instead I downloaded the driver from Broadccom's website (version 15.6.3)

Once the driver is installed I modified /kernel/drv/bge.conf to say default_mtu = 9000;

Now, all NICs are set an mtu value of 9000. I can then say ifconfig bge0 mtu 1500 on NICs that don't need jumbo frames.