Re: Bandwidth Percent

Thanks Bob

I was trying this out on GNS3 using a 7206 with 12.4T running.
I tried again with a 3725 running 12.4(15)T9 and i got the same result as
you and was warned about the reservation.
Thanks for clarifying that I wasn't going mad.

On 13 June 2010 15:56, Bob Sinclair <bob_at_bobsinclair.net> wrote:

> Muzammil,
>
> Your understanding is correct. When I paste your configs into my routers I
> do get the expected warning message.
>
> R1(config-pmap-c)#int f0/1
> R1(config-if)#bandwidth 128
> R1(config-if)# no ip address
> R1(config-if)# duplex auto
> R1(config-if)# speed auto
> R1(config-if)# service-policy output CBWFQ
> I/f FastEthernet0/1 class HTTP requested bandwidth 10%, available only 0%
>
> And the policy is not applied.
>
> Perhaps there is something else in your config or IOS version that is
> affecting this (though I do not know what it could be).
>
> R1#sh ver
> Cisco IOS Software, 2800 Software (C2800NM-ADVENTERPRISEK9-M), Version
> 12.4(21)
>
> Hope that Helps,
>
> -Bob Sinclair
>
> > -----Original Message-----
> > From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On Behalf Of
> > Muzammil Malick
> > Sent: Sunday, June 13, 2010 6:24 AM
> > To: Cisco certification
> > Subject: Bandwidth Percent
> >
> > Hi All
> >
> > I created the following configuration and expected IOS to warn me that
> > I had
> > exceeded the reservable bandwidth but it did not warn me:
> >
> >
> > interface FastEthernet1/0
> > bandwidth 128
> > no ip address
> > duplex auto
> > speed auto
> > service-policy output CBWFQ
> >
> > class-map match-all TELNET
> > match protocol telnet
> > class-map match-all HTTP
> > match protocol http
> > class-map match-all FTP
> > match protocol ftp
> > class-map match-all VOICE
> > match protocol rtp audio
> > !
> > policy-map CBWFQ
> > class VOICE
> > bandwidth percent 25
> > class TELNET
> > bandwidth percent 25
> > class FTP
> > bandwidth percent 25
> > class HTTP
> > bandwidth percent 10
> >
> > 25% of the interface bandwidth gives 32Kb. Therefore after making 3
> > reservations of 25% I had already achieved 96Kb.
> > I have left the max-reserved-bandwidth to default of 75%. therefore I
> > should
> > not be able to reserve more than 96Kb.
> > However I was able to reserve an additional 10% for HTTP traffic.
> >
> > Is it on the administrator to ensure that the bandwidth percent values
> > do
> > not exceed the max-res bandwidth?
> > What would happen now in my situation where I have more reservations
> > than
> > reservable bandwidth?
> >
> > Service-policy output: CBWFQ
> >
> > Class-map: VOICE (match-all)
> > 0 packets, 0 bytes
> > 5 minute offered rate 0 bps, drop rate 0 bps
> > Match: protocol rtp audio
> > Queueing
> > queue limit 64 packets
> > (queue depth/total drops/no-buffer drops) 0/0/0
> > (pkts output/bytes output) 0/0
> > bandwidth 25% (32 kbps)
> >
> > Class-map: TELNET (match-all)
> > 0 packets, 0 bytes
> > 5 minute offered rate 0 bps, drop rate 0 bps
> > Match: protocol telnet
> > Queueing
> > queue limit 64 packets
> > (queue depth/total drops/no-buffer drops) 0/0/0
> > (pkts output/bytes output) 0/0
> > bandwidth 25% (32 kbps)
> >
> > Class-map: FTP (match-all)
> > 0 packets, 0 bytes
> > 5 minute offered rate 0 bps, drop rate 0 bps
> > Match: protocol ftp
> > Queueing
> > queue limit 64 packets
> > (queue depth/total drops/no-buffer drops) 0/0/0
> > (pkts output/bytes output) 0/0
> > bandwidth 25% (32 kbps)
> >
> > Class-map: HTTP (match-all)
> > 0 packets, 0 bytes
> > 5 minute offered rate 0 bps, drop rate 0 bps
> > Match: protocol http
> > Queueing
> > queue limit 64 packets
> > (queue depth/total drops/no-buffer drops) 0/0/0
> > (pkts output/bytes output) 0/0
> > bandwidth 10% (12 kbps)
> >
> > Thanks
> >
> >
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Received on Sun Jun 13 2010 - 20:31:41 ART