ExtremeWare XOS 11.5 supports only the Summit X450 family of switches and the BlackDiamond 8800 series switch.
configure vman ethertype
History
This command was first available in ExtremeWare XOS 11.0.
Platform Availability
This command is available on all platforms with an Advanced Edge, a Core, or an Advanced Core
license.
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ExtremeWare XOS 11.5 Command Reference Guide