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)