dcbtool

NAME

SYNOPSIS

DESCRIPTION

OPTIONS

-h

show the dcbtool usage message

-v

shows dcbtool version information

-r

display the raw lldpad client interface messages as well as the readable output.

-R

display only the raw lldpad client interface messages

COMMANDS

help

shows the dcbtool usage message

ping

test command. lldpad responds with "PPONG" if the client interface is operational.

license

displays dcbtool license information

quit

exit from interactive mode

The following commands interact with lldpad to manage the daemon and DCB features on DCB capable interfaces.

dcbtool general configuration commands:

<gc|go> dcbx

get the configured or operational version of the DCB capabilities exchange protocol. If different, the configured version will take effect (and become the operational version) after lldpad is restarted.

sc dcbx v:[1|2]

set the version of the DCB capabilities exchange protocol which will be used the next time lldpad is started. Information about version 1 can be found at:
<http://download.intel.com/technology/eedc/dcb_cep_spec.pdf> Information about version 2 can be found at:
<http://www.ieee802.org/1/files/public/docs2008/az-wadekar-dcbx-capability-exchange-discovery-protocol-1108-v1.01.pdf>

DCB per-interface commands:

gc <ifname> <feature>

get configuration of feature on interface ifname.

go <ifname> <feature>

get operational status of feature on interface ifname.

gp <ifname> <feature>

get peer configuration of feature on interface ifname.

sc <ifname> <feature> <args>

set the configuration of feature on interface ifname.

feature may be one of the following:

dcb

DCB state of the port

pg

priority groups

pfc

priority flow control

app:<subtype>

application specific data

ll:<subtype>

logical link status

subtype can be:

0|fcoe

Fiber Channel over Ethernet (FCoE)

args can include:

e:<0|1>

controls feature enable

a:<0|1>

controls whether the feature is advertised via DCBX to the peer

w:<0|1>

controls whether the feature is willing to change its operational configuration based on what is received from the peer

[feature specific args]

arguments specific to a DCB feature

Feature specific arguments for dcb:

on|off

enable or disable DCB for the interface. The go and gp commands are not needed for the dcb feature. Also, the enable(e), advertise(a) and willing(w) arguments are not required.

Feature specific arguments for pg:

pgid:xxxxxxxx

Priority group ID for the 8 priorities. From left to right (priorities 0-7), x is the corresponding priority group ID value, which can be 0-7 for priority groups with bandwidth allocations or f (priority group ID 15) for the unrestricted priority group.

pgpct:x,x,x,x,x,x,x,x

Priority group percentage of link bandwidth. From left to right (priority groups 0-7), x is the percentage of link bandwidth allocated to the corresponding priority group. The total bandwidth must equal 100%.

uppct:x,x,x,x,x,x,x,x

Priority percentage of priority group bandwidth. From left to right (priorities 0-7), x is the percentage of priority group bandwidth allocated to the corresponding priority. The sum of percentages for priorities which belong to the same priority group must total 100% (except for priority group 15).

strict:xxxxxxxx

Strict priority setting. From left to right (priorities 0-7), x is 0 or 1. 1 indicates that the priority may utilize all of the bandwidth allocated to its priority group.

up2tc:xxxxxxxx

Priority to traffic class mapping. From left to right (priorities 0-7), x is the traffic class (0-7) to which the priority is mapped.

Feature specific arguments for pfc:

pfcup:xxxxxxxx

Enable/disable priority flow control. From left to right (priorities 0-7), x is 0 or 1. 1 indicates that the corresponding priority is configured to transmit priority pause.

Feature specific arguments for app:<subtype>:

appcfg:xx

xx is a hexadecimal value representing an 8 bit bitmap where 1 bits indicate the priorities which frames for the applications specified by subtype should use. The lowest order bit maps to priority 0.

Feature specific arguments for ll:<subtype>:

status:[0|1]

For testing purposes, the logical link status may be set to 0 or 1. This setting is not persisted in the configuration file.

EXAMPLES

Enable DCB on interface eth2

dcbtool sc eth2 dcb on

Assign priorites 0-3 to priority group 0, priorites 4-6 to priority group 1 and priority 7 to the unrestricted priority. Also, allocate 25% of link bandwidth to priority group 0 and 75% to group 1.

dcbtool sc eth2 pg pgid:0000111f pgpct:25,75,0,0,0,0,0,0

Enable transmit of Priority Flow Control for priority 3 and assign FCoE to priority 3.

dcbtool sc eth2 pfc pfcup:00010000
dcbtool sc eth2 app:0 appcfg:08

COPYRIGHT

hostapd-0.5.7

Copyright

(c) 2004-2008, Jouni Malinen <j@w1.fi>

LICENSE

This program is distributed in the hope it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.

The full GNU General Public License is included in this distribution in the file called "COPYING".  

SUPPORT