Question & Answer
Question
What is the maximum MTU size that can be set for Emulex 10GbE NIC?
Answer
Emulex 10GbE NIC uses be2net network driver. The hardware supports up to 9000 MTU size. You cannot set it any higher than 9000.
[root@host1 ~]# ifconfig eth2 mtu 9001
SIOCSIFMTU: Invalid argument
[root@host1 ~]# ifconfig eth2 mtu 9000 ==> this works
[root@host1 ~]# ifconfig eth2 mtu 8999 ==> this works
[root@host1 ~]#
In order to identify Emulex 10GbE NIC, you can use ethtool command.
[nz@host1 ~]$ ethtool -i eth2
driver: be2net
version: 10.2.261.44
firmware-version: 10.2.261.36
bus-info: 0000:1a:00.0
supports-statistics: yes
supports-test: yes
supports-eeprom-access: yes
supports-register-dump: no
supports-priv-flags: no
[nz@host1 ~]$
If the driver is be2net, it is an Emulex 10GbE NIC.
[{"Product":{"code":"SSULQD","label":"IBM PureData System"},"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Component":"--","Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"1.0.0","Edition":"","Line of Business":{"code":"LOB10","label":"Data and AI"}}]
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Document Information
Modified date:
17 October 2019
UID
swg21973874