QoS Commands
ExtremeWare XOS 11.5 supports only the Summit X450 family of switches and the BlackDiamond 8800 series switch.
ExtremeWare XOS 11.5 Command Reference Guide
916
enable diffserv examination port
enable diffserv examination port [<port_list> | all]
Description
Enables the DiffServ field of an IP packet to be examined in order to select a QoS profile.
Syntax Description
Default
Disabled.
Usage Guidelines
The diffserv examination feature is disabled by default.
If you are using DiffServ for QoS parameters, Extreme Networks recommends that you also configure
802.1p or port-based QoS parameters to ensure that high-priority traffic is not dropped prior to reaching
the MSM on modular switches.
BlackDiamond 10808 and 12804 switch only.
If a port is in more than one virtual router, you cannot use
the DiffServ feature. The default VLAN DiffServ examination mappings apply on ports in more than
one VR. If you attempt to configure DiffServ information on a port that is in more than one virtual
router, the system returns the following message:
Warning: Port belongs to more than one VR. Port properties related to diff serv and
code replacement will not take effect.
Example
The following command enables DiffServ examination on selected ports:
enable diffserv examination ports 1:1,5:5,6:2
History
This command was first available in ExtremeWare XOS 10.1.
Platform Availability
This command is available on all platforms.
port_list
Specifies a list of ports or slots and ports to which the parameters apply.
all
Specifies that DiffServ examination is enabled for all ports.
