Product Documentation

Jumbo Frames on NetScaler VPX Appliances

Jan 31, 2011

NetScaler VPX appliances support receiving and transmitting jumbo frames containing up to 9216 bytes of IP data. Jumbo frames can transfer large files more efficiently than it is possible with the standard IP MTU size of 1500 bytes.

A NetScaler appliance can use jumbo frames in the following deployment scenarios:
  • Jumbo to Jumbo. The appliance receives data as jumbo frames and sends it as jumbo frames.
  • Non-Jumbo to Jumbo. The appliance receives data as regular frames and sends it as jumbo frames.
  • Jumbo to Non-Jumbo. The appliance receives data as jumbo frames and sends it as regular frames.
Jumbo Frames support is available on NetScaler VPX appliances running on the following virtualization platforms:
  • VMware ESX
  • Linux-KVM Platform

Jumbo frames on VPX appliances works similar to Jumbo frames on MPX appliances. For more information on Jumbo Frames and its use cases, see Configuring Jumbo Frames on MPX appliances. The use cases of Jumbo Frames on MPX appliances also apply to VPX appliances.

Configuring Jumbo Frames for VPX running on VMware ESX

Perform the following tasks for configuring Jumbo Frames on a NetScaler VPX appliance running on VMware ESX server:
  • Set the MTU of the interface or channel of the VPX appliance to a value in the range 1501-9000. Use the NetScaler command line interface or the configuration utility of the VPX appliance to set the MTU size. Note that NetScaler VPX appliances running on VMware ESX support receiving and transmitting jumbo frames containing up to only 9000 bytes of IP data.
  • Set the same MTU size on the corresponding physical interfaces of the VMware ESX server by using its management applications. For more information about setting the MTU size on the physical interfaces of VMware ESX, see http://vmware.com/.

Configuring Jumbo Frames for VPX running on Linux-KVM Server

Perform the following tasks for configuring Jumbo Frames on a NetScaler VPX appliance running on a Linux-KVM Server:
  • Set the MTU of the interface or channel of the VPX appliance to a value in the range 1501-9216. Use the NetScaler command line interface or the configuration utility of the VPX appliance to set the MTU size.
  • Set the same MTU size on the corresponding physical interfaces of a Linux-KVM Server by using its management applications. For more information about setting the MTU size on the physical interfaces of Linux-KVM, see http://www.linux-kvm.org/.