Sun Microsystems Gigabit Ethernet MMF/UTP Adapter Modify the MaxFrameSize value, Plumb, # reboot

Refer to the documentation that came with your switch for exact commands to configure Jumbo Frames support.

▼To Configure Jumbo Frames in a Solaris x86 Environment

1.Edit the /kernel/drv/e1000g.conf file:

#cd /kernel/drv/e1000g.conf

2.Modify the MaxFrameSize value:

MaxFrameSize=0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;

^ ^ ^

e1000g2 e1000g1 e1000g0

#0 is for normal ethernet frames.

#1 is for upto 4k size frames.

#2 is for upto 8k size frames.

#3 is for upto 16k size frames.

#These are maximum frame limits, not the actual ethernet frame

#size. Your actual ethernet frame size would be determined by

#protocol stack configuration (please refer to ndd command man pages)

#For Jumbo Frame Support (9k ethernet packet)

#use 3 (upto 16k size frames)

3.Reboot for the change to take effect:

#reboot

4.Plumb:

#ifconfig eth2 xxx.xxx.xx.xxx up

#ifconfig eth2 mtu 8170

Chapter 4 Configuring e1000g Driver Parameters 55