article on this:

http://blog.ine.com/2008/07/08/8023x-flow-control/


--
Garry L. Baker

"There is no 'patch' for stupidity." - www.sqlsecurity.com


On Sun, Sep 19, 2010 at 4:55 PM, Jason Maynard <[email protected]>wrote:

> I was thinking that maybe auto qos would help me determine whether it was
> needed or not.
>
> 3560
> ____
>
> Tried "auto qos voip trust" on a GIG interface after disabling QOS, there
> were no changes in regards to flowcontrol
>
> interface GigabitEthernet0/1
>  shutdown
>  srr-queue bandwidth share 10 10 60 20
>  queue-set 2
>  priority-queue out
>  mls qos trust cos
>  auto qos voip trust
>
>
> So I am thinking that you do not need to turn off flowcontrol on 3560. Time
> to do the same test on 3550
>
>
> 3550
> ____
>
> Tried "auto qos voip trust" on a GIG interface after disabling QOS, there
> were no changes in regards to flowcontrol
>
> interface GigabitEthernet0/2
>  description R2 - Gi0/0
>  switchport access vlan 222
>  switchport mode access
>  switchport nonegotiate
>  mls qos trust cos
>  auto qos voip trust
>  wrr-queue bandwidth 10 20 70 1
>  wrr-queue queue-limit 50 25 15 10
>  wrr-queue cos-map 1 0 1
>  wrr-queue cos-map 2 2 4
>  wrr-queue cos-map 3 3 6 7
>  wrr-queue cos-map 4 5
>  priority-queue out
>  spanning-tree portfast trunk
>
> :(
>
> Well I am off to find it in the 3560 guide but at first glance there is not
> references regarding flowcontrol
>
>
>
> http://www.cisco.com/en/US/docs/switches/lan/catalyst3560/software/release/12.2_25_se/configuration/guide/swqos.html#wp1231112
>
>
>
> -----Original Message-----
> From: Marko Milivojevic [mailto:[email protected]]
> Sent: September-19-10 5:34 PM
> To: Jason Maynard
> Cc: [email protected]
> Subject: Re: [OSL | CCIE_RS] QOS - Flow Control
>
> I think the manual says something about it having to be disabled for
> proper operation.
>
> --
> Marko Milivojevic - CCIE #18427
> Senior Technical Instructor - IPexpert
>
> FREE CCIE training: http://bit.ly/vLecture
>
> Mailto: [email protected]
> Telephone: +1.810.326.1444
> Web: http://www.ipexpert.com/
>
> On Sun, Sep 19, 2010 at 23:19, Jason Maynard <[email protected]>
> wrote:
> > Do you need to turn off “flowcontrol” on 3560?
> >
> >
> >
> > When you enable “mls qos” on 3550 you get the following message
> >
> >
> >
> > Cat1(config)#mls qos
> >
> > QoS: ensure flow-control on all interfaces are OFF for proper operation.
> >
> >
> >
> > On 3560 no message in displayed
> >
> >
> >
> > Cat2(config)#mls qos
> >
> >
> >
> > Thoughts? .....
> >
> >
> >
> >  I know I could have looked it up but I thought I would share this so
> > everyone becomes aware.
> >
> > _______________________________________________
> > For more information regarding industry leading CCIE Lab training, please
> > visit www.ipexpert.com
> >
> >
>
> _______________________________________________
> For more information regarding industry leading CCIE Lab training, please
> visit www.ipexpert.com
>
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