Saturday, June 19, 2010

Enabling Jumbo frames on nxge interface or on T5140 server

To enable jumbo frames on the nxge interface you need to edit the below file. There is option to enable frames per interface, but this didnt work out for me so I enable on all the interface.

/platform/sun4v/kernel/drv/nxge.conf

#------- Jumbo frame support ---------------------------------
# To enable jumbo support for all nxge interfaces,
 accept_jumbo = 1;
#
# To disable jumbo support for all nxge interfaces,
# accept_jumbo = 0;
#
# Default is 0.  See the example at the end of this file for
# enabling or disabling jumbo for a particular nxge interface.
#
#

root@husky # dladm show-link
nxge0           type: non-vlan  mtu: 9194       device: nxge0
nxge1           type: non-vlan  mtu: 9194       device: nxge1
nxge2           type: non-vlan  mtu: 9194       device: nxge2
nxge3           type: non-vlan  mtu: 9194       device: nxge3

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