Mailing List Archive: nsp: foundry

help on QOS for ip phones

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francois.viau at rrsss16

Oct 13, 2009, 1:02 PM

Post #1 of 9 (2423 views)
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help on QOS for ip phones

Hi all

We have juste added some ip phones on our network and I'm trying to set
the qos with a priority of 1 on the ip phones vlan.
I see that I can do it by port but this is not really convenient has the
port is in dual-mode with a pc I rather do it by vlan because my pc is in
vlan 10 and my phones are in vlan 30 .
Si if I can set the priority of 1 in vlan 30 that would be great but I
dont see the option on how to do it anyone have an idea that would be
really great

Also if i'm reading correctly foundry by default assign the qos has
weighted fair queuing and I think changing that to qos mechanism strict
would be better ? am I right ..

thanks

francois

helmwork at ruraltel

Oct 13, 2009, 3:14 PM

Post #2 of 9 (2342 views)
Permalink

Re: help on QOS for ip phones [In reply to]

francois.viau [at] rrsss16 wrote:
> Hi all
>
> We have juste added some ip phones on our network and I'm trying to set
> the qos with a priority of 1 on the ip phones vlan.
> I see that I can do it by port but this is not really convenient has the
> port is in dual-mode with a pc I rather do it by vlan because my pc is in
> vlan 10 and my phones are in vlan 30 .
> Si if I can set the priority of 1 in vlan 30 that would be great but I
> dont see the option on how to do it anyone have an idea that would be
> really great
>
> Also if i'm reading correctly foundry by default assign the qos has
> weighted fair queuing and I think changing that to qos mechanism strict
> would be better ? am I right ..
>
Diffserv would be a more preferred way to provide QoS here. Do the
phones mark the IP header with DSCP bits?

What model are your switches? Depending on the switch model(s), there
are a couple different configurations. If they are FGS or FCX, are they
in a stack configuration?

/Eric
_______________________________________________
foundry-nsp mailing list
foundry-nsp [at] puck
http://puck.nether.net/mailman/listinfo/foundry-nsp

francois.viau at rrsss16

Oct 14, 2009, 5:01 AM

Post #3 of 9 (2342 views)
Permalink

Re: help on QOS for ip phones [In reply to]

Most of it are FES-4802-POE

Francois Viau

Eric Helm <helmwork [at] ruraltel>
2009-10-13 18:14

A
francois.viau [at] rrsss16
cc
foundry-nsp [at] puck
Objet
Re: [f-nsp] help on QOS for ip phones

francois.viau [at] rrsss16 wrote:
> Hi all
>
> We have juste added some ip phones on our network and I'm trying to set
> the qos with a priority of 1 on the ip phones vlan.
> I see that I can do it by port but this is not really convenient has
the
> port is in dual-mode with a pc I rather do it by vlan because my pc is
in
> vlan 10 and my phones are in vlan 30 .
> Si if I can set the priority of 1 in vlan 30 that would be great but I
> dont see the option on how to do it anyone have an idea that would be
> really great
>
> Also if i'm reading correctly foundry by default assign the qos has
> weighted fair queuing and I think changing that to qos mechanism strict
> would be better ? am I right ..
>
Diffserv would be a more preferred way to provide QoS here. Do the
phones mark the IP header with DSCP bits?

What model are your switches? Depending on the switch model(s), there
are a couple different configurations. If they are FGS or FCX, are they
in a stack configuration?

/Eric

mrxlazuardin at gmail

Oct 14, 2009, 9:57 AM

Post #4 of 9 (2342 views)
Permalink

Re: help on QOS for ip phones [In reply to]

Hi Francois,

On FES4802, there is Voice VLAN. I think you can use it on your case and
setting the suitable DSCP value for Voice VLAN. With CDP your IP Phones can
request the Voice VLAN ID configured on the connected port automatically.

Best regards,

> From: francois.viau [at] rrsss16
> To: Eric Helm <helmwork [at] ruraltel>
> Date: Wed, 14 Oct 2009 08:01:23 -0400
> Subject: Re: [f-nsp] help on QOS for ip phones
>
> Most of it are FES-4802-POE
>
>
>
>
>
> Francois Viau
>

helmwork at ruraltel

Oct 14, 2009, 10:28 AM

Post #5 of 9 (2328 views)
Permalink

Re: help on QOS for ip phones [In reply to]

francois.viau [at] rrsss16 wrote:
> Most of it are FES-4802-POE
>
>
>
>
>

On the FES switches, basic ToS-based QoS is enabled by default, but if
it has been disabled:
sw(config)# port-priority
sw(config)# write memory
*requires reload

To set the trust level for an interface to IP Precedence, enter the
following command at the configuration level for
the interface:
sw(config-if-1/1)# qos-tos trust dscp

To change the DSCP –> internal forwarding priority mappings:
sw(config)# qos-tos map dscp-priority 46 to 6

If you have any L3 interfaces on the switch, then there are some
additional config lines to add.

/Eric
_______________________________________________
foundry-nsp mailing list
foundry-nsp [at] puck
http://puck.nether.net/mailman/listinfo/foundry-nsp

mrxlazuardin at gmail

Oct 15, 2009, 12:55 AM

Post #6 of 9 (2322 views)
Permalink

Re: help on QOS for ip phones [In reply to]

Hi Francois,

You still have to define the priority. VLAN Voice feature is only for
separating the Voice traffic automatically on the interface without 802.1Q

Best regards,

On Thu, Oct 15, 2009 at 12:22 AM, <francois.viau [at] rrsss16> wrote:

>
> Thanks but by setting that vlan to voice vlan will it set the priority to
> the highest ? or I should add an access-list with the proper dscp value ?
>
> thanks
>
>
>
>
>
>
> Francois Viau
>
>
> *Lazuardi Nasution <mrxlazuardin [at] gmail>@puck.nether.net*
> Envoy� par : foundry-nsp-bounces [at] puck
>
> 2009-10-14 12:57
> A
> foundry-nsp [at] puck cc
> Objet
> Re: [f-nsp] help on QOS for ip phones
>
>
>
>
>
>
>
> Hi Francois,
>
> On FES4802, there is Voice VLAN. I think you can use it on your case and
> setting the suitable DSCP value for Voice VLAN. With CDP your IP Phones can
> request the Voice VLAN ID configured on the connected port automatically.
>
> Best regards,
>
>
> From: *francois.viau [at] rrsss16*<francois.viau [at] rrsss16>
> To: Eric Helm <*helmwork [at] ruraltel* <helmwork [at] ruraltel>>
> Date: Wed, 14 Oct 2009 08:01:23 -0400
> Subject: Re: [f-nsp] help on QOS for ip phones
>
> Most of it are FES-4802-POE
>

francois.viau at rrsss16

Oct 15, 2009, 5:15 AM

Post #7 of 9 (2322 views)
Permalink

Re: help on QOS for ip phones [In reply to]

Thanks but can I define the priority by vlan or I still have to do it by
port or by access-list ?

Francois Viau

Lazuardi Nasution <mrxlazuardin [at] gmail>
2009-10-15 03:55

A
foundry-nsp [at] puck
cc
francois.viau [at] rrsss16
Objet
Re: [f-nsp] help on QOS for ip phones

Hi Francois,

You still have to define the priority. VLAN Voice feature is only for
separating the Voice traffic automatically on the interface without 802.1Q

Best regards,

On Thu, Oct 15, 2009 at 12:22 AM, <francois.viau [at] rrsss16>
wrote:

Thanks but by setting that vlan to voice vlan will it set the priority to
the highest ? or I should add an access-list with the proper dscp value ?

thanks

Francois Viau

Lazuardi Nasution <mrxlazuardin [at] gmail>@puck.nether.net
Envoy� par : foundry-nsp-bounces [at] puck
2009-10-14 12:57

A
foundry-nsp [at] puck

cc

Objet
Re: [f-nsp] help on QOS for ip phones

Hi Francois,

On FES4802, there is Voice VLAN. I think you can use it on your case and
setting the suitable DSCP value for Voice VLAN. With CDP your IP Phones
can request the Voice VLAN ID configured on the connected port
automatically.

Best regards,

From: francois.viau [at] rrsss16
To: Eric Helm <helmwork [at] ruraltel>
Date: Wed, 14 Oct 2009 08:01:23 -0400
Subject: Re: [f-nsp] help on QOS for ip phones

Most of it are FES-4802-POE

helmwork at ruraltel

Oct 15, 2009, 6:59 AM

Post #8 of 9 (2320 views)
Permalink

Re: help on QOS for ip phones [In reply to]

If your phones already mark the TOS field, then you don't have to do
anything except trust the markings at the port level. Diffserv QOS is on
by default in the FES switches. You may want to change the DSCP to
internal forwarding priority mapping for EF:
qos-tos map dscp-priority 46 to 6

francois.viau [at] rrsss16 wrote:
> Thanks but can I define the priority by vlan or I still have to do it by
> port or by access-list ?
>
>

If your phones already mark the TOS field, then you don't have to do
anything except trust the markings at the port level. Diffserv QOS is on
by default in the FES switches. You may want to change the DSCP to
internal forwarding priority mapping for EF:
FES4802(config)# qos-tos map dscp-priority 46 to 6

If you really prefer to do 802.1p QOS, then you can assign priority on a
per VLAN basis like this:

FES4802(config)# vlan 20
FES4802(config-vlan-20)# priority 7

TOS-based QOS may override the 802.1p priority, so you may have to
disable it:
FES4802(config)# no port-priority

/Eric
_______________________________________________
foundry-nsp mailing list
foundry-nsp [at] puck
http://puck.nether.net/mailman/listinfo/foundry-nsp

francois.viau at rrsss16

Oct 15, 2009, 11:08 AM

Post #9 of 9 (2317 views)
Permalink

Re: help on QOS for ip phones [In reply to]

Thank you very much for your explanation , then I will make an
access-list something like qos-tos map dscp-priority 46 to 2

But for vlan priority I dont have the option ?

FES-4802POE(config)#vlan 20
by VLAN type
name VLAN name
<cr>

Francois Viau

Eric Helm <helmwork [at] ruraltel>
2009-10-15 09:59

A
francois.viau [at] rrsss16
cc
Lazuardi Nasution <mrxlazuardin [at] gmail>, foundry-nsp [at] puck
Objet
Re: [f-nsp] help on QOS for ip phones

If your phones already mark the TOS field, then you don't have to do
anything except trust the markings at the port level. Diffserv QOS is on
by default in the FES switches. You may want to change the DSCP to
internal forwarding priority mapping for EF:
qos-tos map dscp-priority 46 to 6

francois.viau [at] rrsss16 wrote:
> Thanks but can I define the priority by vlan or I still have to do it by

> port or by access-list ?
>
>

If your phones already mark the TOS field, then you don't have to do
anything except trust the markings at the port level. Diffserv QOS is on
by default in the FES switches. You may want to change the DSCP to
internal forwarding priority mapping for EF:
FES4802(config)# qos-tos map dscp-priority 46 to 6

If you really prefer to do 802.1p QOS, then you can assign priority on a
per VLAN basis like this:

FES4802(config)# vlan 20
FES4802(config-vlan-20)# priority 7

TOS-based QOS may override the 802.1p priority, so you may have to
disable it:
FES4802(config)# no port-priority

/Eric

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