Fujitsu SPARC Enterprise T5120 Product Notes page 90

3. Run ifconfig -a again to verify that there are no active nxge interfaces.
Example:
# ifconfig -a
lo0: flags=2001000849<UP,LOOPBACK,RUNNING,MULTICAST,IPv4,VIRTUAL>
mtu 8232 index 1
inet 127.0.0.1 netmask ff000000
bge0: flags=201000843<UP,BROADCAST,RUNNING,MULTICAST,IPv4,CoS>
mtu 1500 index 2
inet 129.153.54.82 netmask ffffff00 broadcast 129.153.54.255
It is now safe to unload the nxge driver.
Jumbo Frames Throughput of nxge Drops to 30
Mbps Due to Packet Dropping (CR 6554478)
This issue is resolved for servers running the Solaris 10 5/08 OS and later. If you are
running Solaris 10 8/07, you can fix this issue with patch ID 127127-11 or later.
Receive-side performance of the nxge driver drops significantly if the following two
conditions are true:
Jumbo Frames are enabled because the following line is present and not
■
commented out in the nxge.conf file:
The nxge.conf file is in the /platform/sun4v/kernel/drv directory on
sun4v systems, and it is in the /platform/sun4u/kernel/drv directory on
sun4u systems.
Maximum Transmission Unit (MTU) is set to a value larger than 8172. When
■
Jumbo Frames are enabled, the MTU size defaults to 9194.
Note – Refer to the Sun Quad GbE UTP x8 PCIe ExpressModule User's Guide, the Sun
Dual 10GbE XFP PCIe ExpressModule User's Guide, the Sun x8 Express Dual 10 Gigabit
Ethernet Fiber XFP Low Profile Adapter User's Guide, or the Sun x8 Express Quad Gigabit
Ethernet UTP Low Profile Adapter User's Guide for details.
78 SPARC Enterprise T5120 and T5220 Servers Product Notes • April 2010
ether 0:14:4f:2a:9f:6a
accept_jumbo=1