From: Gopal@xxxxxxxxxxxxxxxxxx
Date: Fri Jan 26 2001 - 08:44:17 GMT-3
>Server1 used up 10M, can server2 use another 10M? or combined server1 and
>server2 will be 10M and more traffic is getting dropped.
or combined server1 and server2 will be 10M and more traffic is getting
dropped.-------This is is correct.
Server1 used up 10M, can server2 use another 10M? -----this is incorrect.
basically, it is not meaningful to say server1 used up 10M. CAR defines the
traffic-rate(bps-bits per sec) but not the amount of traffic. CAR sees hw
what bps the access-group is pushing. (not caring for individual ip
addresses). It starts droping after exceeding min/avg burst. And, drops
everything that goes above max burst.
Hope this helps.
gopal
-----Original Message-----
From: zheng yi <drnszgy@hotmail.com>
To: madhu_nk@hotmail.com <madhu_nk@hotmail.com>; dgoldsmi@cisco.com
<dgoldsmi@cisco.com>
Cc: ccielab@groupstudy.com <ccielab@groupstudy.com>
Date: Friday, January 26, 2001 1:30 AM
Subject: Re: CAR question
>
>Probably I didn't make my question clear. Let me rephase this way.
>
>Server1 (1.1.1.1), server2 (1.1.1.2), server3 (1.1.1.3).
>
>Server1 used up 10M, can server2 use another 10M? or combined server1 and
>server2 will be 10M and more traffic is getting dropped.
>
>tks
>Alan
>
>
>
>
>>From: "Madhu NK" <madhu_nk@hotmail.com>
>>To: drnszgy@hotmail.com, dgoldsmi@cisco.com
>>CC: ccielab@groupstudy.com
>>Subject: Re: CAR question
>>Date: Fri, 26 Jan 2001 06:10:51
>>
>>Hi,
>>I think it should be like this:
>>
>>a) Traffic from 1.1.1.0 at rate less than 10Mbps go through and anything
>>more will be dropped.
>>b) Traffic from 2.2.2.0 at rate less than 20Mbps ( i.e within contract)
>>will go through after getting precedence remarked to 5.
>>Traffic out of contract ie above 20M will be dropped.
>>c)Remaining traffic at rate less than 8 Mbps ( i,e within contract)
>>will go throught after remarked to precedence 5 and out of contract will
be
>>dropped.
>>
>>hope this helps
>>madhu
>>
>>
>>From: "zheng yi" <drnszgy@hotmail.com>
>>Reply-To: "zheng yi" <drnszgy@hotmail.com>
>>To: dgoldsmi@cisco.com
>>CC: ccielab@groupstudy.com
>>Subject: Re: CAR question
>>Date: Fri, 26 Jan 2001 04:33:20
>>
>>Hi Dave:
>>
>> >No, in the example below the users on segment 1.1.1.0 will get 10M
>>COMBINED
>> >any amount over is dropped.
>>
>>Do you mean all users on 1.1.1.0 can only have combined 10M? Or each
>>individual user will have 10M?
>>
>>tks
>>Alan
>>
>>
>>
>> >From: Dave Goldsmith <dgoldsmi@cisco.com>
>> >Reply-To: Dave Goldsmith <dgoldsmi@cisco.com>
>> >To: zheng yi <drnszgy@hotmail.com>
>> >CC: ccielab@groupstudy.com
>> >Subject: Re: CAR question
>> >Date: Thu, 25 Jan 2001 23:15:17 -0500
>> >
>> >Zheng Yi,
>> >
>> >No, in the example below the users on segment 1.1.1.0 will get 10M
>>combined
>> >any amount over is dropped. The users on segment 2.2.2.0 will get 20M
of
>> >data marked with prec 5 anything over is dropped. Other
>> >traffic gets 8M of data, past that it is dropped.
>> >
>> >dave
>> >
>> >interface Serial0/0
>> > description 45Mbps to R2
>> > rate-limit input access-group 10 10000000 24000 32000 conform-action
>> > transmit exceed-action drop
>> > rate-limit input access-group 12 20000000 24000 32000 conform-action
>> > set-prec-transmit 5 exceed-action drop
>> > rate-limit input 8000000 16000 24000 conform-action set-prec-transmit
>>5
>> >exceed-action
>> > drop
>> > ip address 200.200.14.250 255.255.255.252
>> >!
>> >access-list 10 permit ip 1.1.1.0 0.0.0.255
>> >access-list 12 permit ip 2.2.2.0 0.0.0.255
>> >
>> >zheng yi wrote:
>> >
>> > > <html><DIV>
>> > > <P>Hi Dave:</P>
>> > > <P>I don't quite understand, do you mean "the router will allocate
10M
>> >for all users if I define the network"? If so, does it means
>> >user1 used up 5M and user2 can only use another 5M?<BR><BR>tks</P>
>> > > <P>Alan</P></DIV>
>> > > <DIV></DIV>
>> > > <DIV></DIV>>From: Dave Goldsmith <DGOLDSMI@CISCO.COM>
>> > > <DIV></DIV>>Reply-To: Dave Goldsmith <DGOLDSMI@CISCO.COM>
>> > > <DIV></DIV>>To: zheng yi <DRNSZGY@HOTMAIL.COM>
>> > > <DIV></DIV>>CC: ccielab@groupstudy.com
>> > > <DIV></DIV>>Subject: Re: CAR question
>> > > <DIV></DIV>>Date: Thu, 25 Jan 2001 22:29:30 -0500
>> > > <DIV></DIV>>
>> > > <DIV></DIV>>Zheng Yi,
>> > > <DIV></DIV>>
>> > > <DIV></DIV>>No, assuming you defined a network for the CAR
>>statement.
>> >You could set it up to give 10 to each, but the router doesn't allocate
>>10M
>> >for each user if you define the network.
>> > > <DIV></DIV>>
>> > > <DIV></DIV>>Dave
>> > > <DIV></DIV>>
>> > > <DIV></DIV>>zheng yi wrote:
>> > > <DIV></DIV>>
>> > > <DIV></DIV>> >
>> > > <DIV>Hi: </DIV>
>> > > <DIV></DIV>> >
>> > > <DIV></DIV>
>> > > <DIV></DIV>> >
>> > > <P>This is a question on CAR.</P>
>> > > <DIV></DIV>> >
>> > > <P>Say if I limit a group of user's traffic to 10M (I can do this by
>> >defining an access list and control the IP address of this group users),
>> >the question is if the rate control is aggregate. </P>
>> > > <DIV></DIV>> >
>> > > <DIV></DIV>
>> > > <DIV></DIV>> >
>> > > <DIV></DIV>e.g. (control 1.1.1.0 to have only 10M BandWidth)
>> > > <DIV></DIV>> >
>> > > <DIV></DIV>User1 (at 1.1.1.1) first requesting traffic, and used up
5M
>> >BandWidth.
>> > > <DIV></DIV>> >
>> > > <DIV></DIV>Meanwhile, User2 (at 1.1.1.2) requesting traffic, will
>>User2
>> >get another 10M or only get 5M?
>> > > <DIV></DIV>> >
>> > > <DIV></DIV>
>> > > <DIV></DIV>> >
>> > > <DIV></DIV>
>> > > <DIV></DIV>> >
>> > > <P>As my understanding, for user1, IOS allocate 10M for
him since
>> >user1 IP falls in network 1.1.1.0 </P>
>> > > <DIV></DIV>> >
>> > > <P>For user2, IOS will allocate another 10M for him as user2 IP is at
>> >network 1.1.1.0. </P>
>> > > <DIV></DIV>> >
>> > > <P>And as the result, 2 user will get 20M Bandwidth. </P>
>> > > <DIV></DIV>> >
>> > > <P>any commends?</P>
>> > > <DIV></DIV>> >
>> > > <P>tks </P>
>> > > <DIV></DIV>> >
>> > > <DIV></DIV>Alan<BR clear=all>
>> > > <HR>
>> > > Get Your Private, Free E-mail from MSN Hotmail at <A
>> >href="http://www.hotmail.com/">http://www.hotmail.com>.<BR>
>> > > <P></P>
>> > > <DIV></DIV>> >
>> > > <DIV></DIV>> >
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