You turn off flow control for the individual physical ports, not the trunked interface:

hostname toasterA

ifconfig e2b flowcontrol none

ifconfig e1b flowcontrol none

ifgrp create lacp nfs_ifgrp -b mac e2b e1b

vlan create -g off nfs_ifgrp 100

ifconfig e0M 192.168.1.100 flowcontrol none netmask 255.255.255.0 partner e0M up

ifconfig nfs_ifgrp-100 192.168.0. netmask 255.255.255.0 mtusize 1500 partner nfs_ifgrp-100 trusted up nfo

route add default 192.168.0.1

--rdp

From: toasters-bounces@teaparty.net [mailto:toasters-bounces@teaparty.net] On Behalf Of Jordan Slingerland
Sent: Wednesday, January 22, 2014 2:28 PM
To: <Toasters@teaparty.net> (Toasters@teaparty.net)
Subject: flow control and 10g interfaces - ifgrps and vlans

Can flow control be disabled on a vlan interface?

I tried in a simulator and It spits back “SIOCSFLOWCONTROL - Operation not supported by device” In the same simulator I can enable or disable it directly on the interface. 

Example RC:

hostname toasterA

ifgrp create lacp nfs_ifgrp -b mac e2b e1b

vlan create -g off nfs_ifgrp 100

ifconfig e0M 192.168.1.100 flowcontrol none netmask 255.255.255.0 partner e0M up

ifconfig nfs_ifgrp-100 192.168.0.100 flowcontrol none netmask 255.255.255.0 mtusize 1500 partner nfs_ifgrp-100 trusted up nfo

route add default 192.168.0.1

--Jordan

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