You want to enable or disable Jumbo Frame Support on the PacketShaper S-Series.
By default, the PacketShaper S-Series NIC driver supports standard frames that have a Maximum Transmission Unit (MTU) of 1500 bytes and will drop packets that exceed this size. The PacketShaper S-Series NIC driver now supports Jumbo Frames that have a Maximum Transmission Unit (MTU) of 9000 bytes.
To enable Jumbo Frames support (MTU = 9000 bytes) on your PacktShaper S-Series:
To disable Jumbo Frames and default the PacketShaper to Standard Frames support (MTU = 1500 bytes).
Some PacketShaper S-Series appliances may require a memory grade, available directly from Symantec. Use the command version verbose to confirm the amount of memory installed on your PacketShaper S-Series. See below for the minimum memory requirements for your PacketShaper S-Series to support the Jumbo Frames feature:
Note: The Jumbo Frames feature is only available on PacketShaper S-Series software image versions 220.127.116.11 and later. The setup variable enableJumboFrame command is not supported on PacketShaper S-Series software image versions earlier than 18.104.22.168.