From: Thomwin Chen (thomwin_chen@yahoo.com)
Date: Mon Nov 14 2005 - 02:09:09 GMT-3
I'm not quite sure,
maybe GTS in MQC by using shape average ?
R1(config-pmap-c)#?
QoS policy-map class configuration commands:
bandwidth Bandwidth
exit Exit from QoS class action configuration mode
no Negate or set default values of a command
<cr>
fair-queue Flow-based Fair Queueing
police Police
priority Low Latency Queueing
queue-limit Queue Max Threshold for Tail Drop
random-detect Weighted Random Early Detect (Precedence based
service-policy Configure an hierarchical policy
set Set QoS values
shape Traffic Shaping
R1(config-pmap-c)#shape ?
adaptive Enable Traffic Shaping adaptation to BECN
average configure token bucket: CIR (bps) [Bc (bits) [Be (bits)]], send
out Bc only per interval
fecn-adapt Enable Traffic Shaping reflection of FECN as BECN
peak configure token bucket: CIR (bps) [Bc (bits) [Be (bits)]], send
out Bc+Be per interval
R1(config-pmap-c)#shape average ?
<8000-4000000000> Target Bit Rate (bits per second), the value needs to be
multiple of 8000
R1(config-pmap-c)#shape average
any other opinion ?
Rgds,
Thomwin
steven richards <ccie_2005@hotmail.com> wrote:
I see what you mean it looks like it requires a burst value. Is there
another way besides using policing and rate limiting to limit traffic to a
certain amount of bandwidth ? Using the bandwidth command only guarentees a
certain amount of bandwidth but you can go beyond it. The only other thing I
could think of is using the priority command but it looks like that has a
burst value.
Thanks,
R2#conf t
Enter configuration commands, one per line. End with CNTL/Z.
R2(config)# policy-map QOS
R2(config-pmap)# class PREC2
R2(config-pmap-c)#priority 128 ?
<32-2000000> Burst in bytes
R2(config-pmap-c)#priority 128
>From: Thomwin Chen
>To: steven richards , ccielab@groupstudy.com
>Subject: Re: Priority Queuing question
>Date: Sun, 13 Nov 2005 20:42:16 -0800 (PST)
>
>Steven,
>
> the burst interval is automatically set to 200 ms.
>
> you can adjust this burst interval manually.
>
> Rgds,
> Thomwin
>
>steven richards wrote:
> Hello,
>
>I am trying to use priority queueing beacuse I am interested in guarenteing
>a certain amount of bandwidth, withought going over the guereenteed
>bandwidth. One thing I noticed is that with configuring priority queueing
>there appears to be a burst automatically configured. Is there a way to
>just
>configure priority queueing withought that autoconfugred burst ?
>
>Thanks,
>
>
>
>R2#show policy-map interface e0/0
>Ethernet0/0
>
>Service-policy output: QOS
>
>Class-map: PREC2 (match-all)
>0 packets, 0 bytes
>5 minute offered rate 0 bps, drop rate 0 bps
>Match: ip precedence 2
>Queueing
>Strict Priority
>Output Queue: Conversation 264
>Bandwidth 128 (kbps) Burst 3200 (Bytes) <----- Burst automatically
>configured ?
>(pkts matched/bytes matched) 0/0
>(total drops/bytes drops) 0/0
>
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