Configuring Bandwidth Share for the Flows With Dedicated Ring Group

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You can set the bandwidth share for a flow only if the underlying datalink supports offloading of SLAs and the flow has a dedicated ring group. You can specify the bandwidth share by using the bw-share property while creating the flow. All the hardware resource consumers of the physical datalink such as VF VNIC, ring group VNIC, and hardware flows share the total bandwidth of the datalink.

Note - Datalinks such as i40e support only the transmit side of the hardware SLA offloading.

Example 87 Setting Bandwidth Share for the Flows With Dedicated Ring Groups

The following examples show how to set the bandwidth share for the hardware flows with dedicated ring groups.

Check whether the underlying datalink support offloading of hardware SLAs by using the dladm show-linkprop command.

$ dladm show-linkprop -H -pbw-share net3
LINK     PROPERTY        MODE HWPOSSIBLE    HWFLAGS SWPOSSIBLE    SWFLAGS
net3     bw-share        none 1-100         o       --            --
$ dladm show-linkprop -H -pmax-bw net3
LINK     PROPERTY    MODE   HWPOSSIBLE    HWFLAGS SWPOSSIBLE    SWFLAGS
net3     max-bw      sw     50-10000:50   o       0-10000:0.001 oi

Set the bandwidth share for the flow while creating the flow by using the bw-share property.

$ flowadm add-flow -lnet3 -a transport=tcp,local_ip=203.0.113.2/27, \ 
local_port=5002,remote_ip=203.0.113.35/27,remote_port=5001 -p hw-flow=on,bw-share=10 tcpflow1

You can set the bandwidth share for the existing flows by using the flowadm set-flowprop command.

$ flowadm set-flowprop -p bw-share=10 tcpflow1

 $ flowadm set-flowprop -p bw-share=40 udpflow1

$ flowadm show-flowprop -p bw-share
FLOW        PROPERTY   PERM VALUE        EFFECTIVE    DEFAULT   POSSIBLE
tcpflow1    bw-share    rw   10           20%           --        1-100
udpflow1    bw-share    rw   40           80%           --        1-100