56 Sun Dual 10GbE XFP PCI Express Card User’s Guide • January 2009

▼To Enable Jumbo Frames in a Solaris

Environment Using nxge.conf
1. Enable Jumbo Frames for a port using the nxge.conf file. For example,
2. Reboot the system:
3. Set the maximum MTU for maximum performance:

▼To Check Layer 2 Configuration

●Viewthe maximum transmission unit (MTU) configuration of an nxge instance at
any time with the kstat command.
The kstat mac_mtu variable represents the complete size of the Ethernet frame,
which includes the Ethernet header,maximum payload, and crc. This value should
be equal to or less than the MTU configured on the switch.
name = "pciex108e,abcd" parent = "/pci@780/pci@0/pci@8/network@0"
unit-address = "0"
accept-jumbo=1;
%boot -r
#ifconfig nxge mtu 9194
#kstat nxge:0 | grep mac_mtu