dcb-maxrate(8)

1DCB-MAXRATE(8)                       Linux                      DCB-MAXRATE(8)
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NAME

6       dcb-maxrate  - show / manipulate port maxrate settings of the DCB (Data
7       Center Bridging) subsystem
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SYNOPSIS

10       dcb [ OPTIONS ] maxrate { COMMAND | help }
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13       dcb maxrate show dev DEV [ tc-maxrate ]
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15       dcb maxrate set dev DEV [ tc-maxrate RATE-MAP ]
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17       RATE-MAP := [ RATE-MAP ] RATE-MAPPING
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19       RATE-MAPPING := { TC | all }:RATE
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21       TC := { 0 .. 7 }
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23       RATE := { INTEGER[bit] | INTEGERKbit | INTEGERMib | ... }
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DESCRIPTION

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

32       The following describes only the write direction, i.e. as used with the
33       set command. For the show command, the parameter name is to be used as
34       a simple keyword without further arguments. This instructs the tool to
35       show the value of a given parameter. When no parameters are given, the
36       tool shows the complete maxrate configuration.
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39       tc-maxrate RATE-MAP
40              RATE-MAP uses the array parameter syntax, see dcb(8) for de‐
41              tails. Keys are TC indices, values are traffic rates in bits per
42              second.  The rates can use the notation documented in section
43              PARAMETERS at tc(8).  Note that under that notation, "bit"
44              stands for bits per second whereas "b" stands for bytes per sec‐
45              ond. When showing, the command line option -i toggles between
46              using decadic and ISO/IEC prefixes.
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EXAMPLE & USAGE

50       Set rates of all traffic classes to 25Gbps, except for TC 6, which will
51       have the rate of 100Gbps:
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54       # dcb maxrate set dev eth0 tc-maxrate all:25Gbit 6:100Gbit
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56       Show what was set:
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59       # dcb maxrate show dev eth0
60       tc-maxrate 0:25Gbit 1:25Gbit 2:25Gbit 3:25Gbit 4:25Gbit 5:25Gbit
61       6:100Gbit 7:25Gbit
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EXIT STATUS

65       Exit status is 0 if command was successful or a positive integer upon
66       failure.
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REPORTING BUGS

74       Report any bugs to the Network Developers mailing list <net‐
75       dev@vger.kernel.org> where the development and maintenance is primarily
76       done.  You do not have to be subscribed to the list to send a message
77       there.
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AUTHOR

81       Petr Machata <me@pmachata.org>
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85iproute2                       22 November 2020                 DCB-MAXRATE(8)