Forum Discussion

giltjr's avatar
giltjr
Icon for Nimbostratus rankNimbostratus
Apr 12, 2023

Hardware platform and TSO (TCP Segmentation Offoload) support

Is there any documentation that shows what hardware platforms support TCP Sementation Offload? Specifically trying to see if the 2000s supported this.
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PSilva's avatar
PSilva
Ret. Employee
Apr 12, 2023

While I'm also not sure about the hardware, I did find this about the feature: 

K15609: Overview of TCP Segmentation Offload and Large Receive Offload

In addition, this is about VE and about 2/3 of the way down is the TSO info: https://techdocs.f5.com/kb/en-us/products/big-ip_ltm/manuals/product/bigip-ve-setup-vmware-esxi-11-6-0/1.html

About TCP Segmentation Offloading support

If you want to disable support for TCP Segmentation Offloading (TSO), you must submit a tmsh command, because the TSO feature is enabled by default. Note that enabling TSO support also enables support for large receive offload (LRO) and Jumbo Frames.

Configuring a hypervisor for TSO support

You must have the Admin user role to enable or disable TSO support for a hypervisor.

Using the tmsh command sys db, you can turn TSO support on, off, or check to see whether support is currently enabled.
  1. To determine whether TSO support is currently enabled, use the tmsh show command.
    show sys db tm.tcpsegmentationoffload
  2. To enable support for TSO, use the tmsh enable command.
    sys db tm.tcpsegmentationoffload enable
  3. To disable support for TSO, use the tmsh disable command.
    sys db tm.tcpsegmentationoffload disable