dcb-maxrate(8) - man - phpman

DCB-MAXRATE(8)                                  Linux                                 DCB-MAXRATE(8)



NAME
       dcb-maxrate  - show / manipulate port maxrate settings of the DCB (Data Center Bridging) sub‐
       system

SYNOPSIS
       dcb [ OPTIONS ] maxrate { COMMAND | help }


       dcb maxrate show dev DEV [ tc-maxrate ]

       dcb maxrate set dev DEV [ tc-maxrate RATE-MAP ]

       RATE-MAP := [ RATE-MAP ] RATE-MAPPING

       RATE-MAPPING := { TC | all }:RATE

       TC := { 0 .. 7 }

       RATE := { INTEGER[bit] | INTEGERKbit | INTEGERMib | ... }


DESCRIPTION
       dcb maxrate is used to configure and inspect maximum rate at which traffic is allowed to
       egress from a given traffic class.


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 value of a given parameter. When no parameters are given,
       the tool shows the complete maxrate configuration.


       tc-maxrate RATE-MAP
              RATE-MAP uses the array parameter syntax, see dcb(8) for details. Keys are TC indices,
              values are traffic rates in bits per second.  The rates can use the notation docu‐
              mented in section PARAMETERS at tc(8).  Note that under that notation, "bit" stands
              for bits per second whereas "b" stands for bytes per second. When showing, the command
              line option -i toggles between using decadic and ISO/IEC prefixes.


EXAMPLE & USAGE
       Set rates of all traffic classes to 25Gbps, except for TC 6, which will have the rate of
       100Gbps:


       # dcb maxrate set dev eth0 tc-maxrate all:25Gbit 6:100Gbit

       Show what was set:


       # dcb maxrate show dev eth0
       tc-maxrate 0:25Gbit 1:25Gbit 2:25Gbit 3:25Gbit 4:25Gbit 5:25Gbit 6:100Gbit 7:25Gbit


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


SEE ALSO
       dcb(8)


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


AUTHOR
       Petr Machata <me AT pmachata.org>



iproute2                                  22 November 2020                            DCB-MAXRATE(8)