Configuring Jumbo Frames on ESXi Server


1. SSH into ESXi Server

2. Set the MTU for the vSwitch

~ # esxcfg-vmknic -m 9000 VMkernel
[2011-11-18 03:01:47 'NotifyDCUI' warning] Notifying the DCUI of configuration change
~ # 

3. Verify vSwitch’s MTU

~ # esxcfg-vmknic -list
Interface  Port Group/DVPort   IP Family IP Address                              Netmask         Broadcast       MAC Address       MTU     TSO MSS   Enabled Type
vmk0       135                 IPv4      192.168.24.30                           255.255.255.0   192.168.24.255  88:43:e1:c3:19:e8 1500    65535     true    STATIC
vmk1       VMkernel            IPv4      20.0.0.1                                255.255.255.0   20.0.0.255      00:50:56:73:a1:42 9000    65535     true    STATIC
~ #
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