DCB-APPTRUST(8)                      Linux                     DCB-APPTRUST(8)

NAME
       dcb-apptrust - show / configure per-selector trust and trust order of
       the application priority table of the DCB (Data Center Bridging)
       subsystem.

SYNOPSIS

       dcb [ OPTIONS ]  apptrust { COMMAND | help }


       dcb apptrust show dev DEV [ order ]

       dcb apptrust set dev DEV [ order SEL-LIST ]

       SEL-LIST := [ SEL-LIST ] SEL

       SEL := { ethtype | stream-port | dgram-port | port | dscp | pcp }


DESCRIPTION
       dcb apptrust is used to configure per-selector trust and trust order of
       the Application Priority Table, see dcb-app(8) for details on how to
       configure app table entries.

       Selector trust can be used by the software stack, or drivers (most
       likely the latter), when querying the APP table, to determine if an APP
       entry should take effect, or not. Additionally, the order of the
       trusted selectors will dictate which selector should take precedence,
       in the case of multiple different APP table selectors being present.


COMMANDS
       show   Display all trusted selectors.


       set    Set new list of trusted selectors. Empty list is effectively the
              same as removing trust entirely.


PARAMETERS
       The following describes only the write direction, i.e. as used with the
       set command. For the show command, the parameter name is to be used as
       a simple keyword without further arguments. This instructs the tool to
       show the values of a given parameter.


       order SEL-LIST
              SEL-LIST is a space-separated list of selector names. Possible
              selector values are: ethtype, stream-port, dgram-port, port,
              dscp, and pcp



EXAMPLE & USAGE
       Set trust order to: dscp, pcp for eth0:

       # dcb apptrust set dev eth0 order dscp pcp

       Set trust order to: port (stream or dgram), pcp, ethtype for eth1:

       # dcb apptrust set dev eth1 order port pcp ethtype

       Show what was set:


       # dcb apptrust show dev eth0
       order: port pcp ethtype


EXIT STATUS
       Exit status is 0 if command was successful or a positive integer upon
       failure.


SEE ALSO
       dcb(8), dcb-app(8)


REPORTING BUGS
       Report any bugs to the Network Developers mailing list
       <netdev@vger.kernel.org> where the development and maintenance is
       primarily done.  You do not have to be subscribed to the list to send a
       message there.


AUTHOR
       Daniel Machon <daniel.machon@microchip.com>

iproute2                       22 November 2022                DCB-APPTRUST(8)