From: Brian McGahan (bmcgahan@internetworkexpert.com)
Date: Wed Feb 25 2004 - 17:24:08 GMT-3
As long as you take this network traffic into account you are fine.
For example, on a GigE link, it's a little ridiculous to say that 250Mbps of
traffic will be network traffic. If you configure a class (i.e. not
class-default) which matches your routing traffic and network traffic and
reserve the appropriate bandwidth for it you are fine.
Depending on the platform the router may employ it's own queueing
strategy for essential network control traffic. For more info see this cco
doc:
http://www.cisco.com/warp/public/105/rtgupdates.html
HTH,
Brian McGahan, CCIE #8593
bmcgahan@internetworkexpert.com
Internetwork Expert, Inc.
http://www.InternetworkExpert.com
Toll Free: 877-224-8987 x 705
Outside US: 775-826-4344 x 705
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> SANCHEZ-MONGE,ANTONIO (HP-France,ex2)
> Sent: Wednesday, February 25, 2004 10:07 AM
> To: 'Michael Snyder'; ccielab@groupstudy.com
> Cc: alsontra@hotmail.com
> Subject: RE: MQC for bandwidth reservation (max-reserved-bandwidth 100)
>
> Hi Michael,
>
> -> Won't max-reserved-bandwidth 100 be a good default command to use with
> MQC interfaces?
>
> Reserving 100% of the total bandwidth may starve the router generated
> traffic and break routing protocols and other essential management
> traffic.
> That's why it is 75% by default and not 100%.
>
> Cheers,
> Ato.
>
> -----Original Message-----
> From: Michael Snyder [mailto:msnyder@revolutioncomputer.com]
> Sent: miircoles, 25 de febrero de 2004 16:52
> To: ccielab@groupstudy.com
> Cc: alsontra@hotmail.com
> Subject: RE: MQC for bandwidth reservation (max-reserved-bandwidth 100)
>
>
> Well, if you are using more that 75% of the bandwidth value (per the show
> int cmd) then you need to up the upper limit.
>
> R8(config-if)#max-reserved-bandwidth 100
>
> Which brings up a question,
>
> Won't max-reserved-bandwidth 100 be a good default command to use with MQC
> interfaces?
>
>
>
>
>
> -----Original Message-----
> From: alsontra@hotmail.com [mailto:alsontra@hotmail.com]
> Sent: Wednesday, February 25, 2004 11:08 AM
> To: SANCHEZ-MONGE,ANTONIO (HP-France,ex2); ccielab@groupstudy.com
> Subject: Re: MQC for bandwidth reservation
>
> Thank you Ato.
>
> My question was more in regards of whether or not you have to specify the
> command when reserving bandwidth. I've seen MQC configurations with and
> without the interface level bandwidth command. I think your saying that I
> only need to specify bandwidth if the reference bandwidth is different
> than
> the interface bandwidth.
>
>
> Thanks
> Alsontra
>
>
>
>
> ----- Original Message -----
> From: "SANCHEZ-MONGE,ANTONIO (HP-France,ex2)" <antonio.sanchez-
> monge@hp.com>
> To: <alsontra@hotmail.com>; <ccielab@groupstudy.com>
> Sent: Wednesday, February 25, 2004 2:29 AM
> Subject: RE: MQC for bandwidth reservation
>
>
> Hi Alsontra,
>
> Both bandwidth commands have very different meanings.
>
> Under the interface, it means the total reference bandwidth. Used for QoS
> but also for routing protocols, etc... Normally you need to change it in
> serial interfaces where the real bandwidth is different from T1, etc...
>
> Under the class in a policy map, it is the bandwidth you want to reserve
> for
> a particular class. The total reserved bandwidth cannot exceed by default
> 75% of the reference bandwidth.
>
> Cheers,
> Ato.
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> alsontra@hotmail.com
> Sent: miircoles, 25 de febrero de 2004 11:01
> To: ccielab@groupstudy.com
> Subject: MQC for bandwidth reservation
>
>
> When is the interface level bandwidth command used or needed with MQC?
>
> For example:
>
> class-map match-all ICMP
> match access-group 101
>
> policy-map ICMP_BW
> class ICMP
> bandwidth 128
>
> interface fa1/0/0
> bandwidth 1500 <-----------------------------When does this need to
> be
> specified?
> service-policy output ICMP_BW
>
>
>
> If I don't specify this, what value dose the interface policy use? The
> interface bandwidth rate? And if so why would I want to change it?
>
>
> Alsontra
>
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