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) subsys-
tem.
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.ker-
nel.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)
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