Re: Class Default

Thanks Steve, that's what I thought.

Adam, I understand that the class-default always exists but as you
have shown, by default this has no fancy queueing methods applied, it
is just FIFO.

On 7 August 2010 01:31, Adam Booth <adam.booth_at_gmail.com> wrote:
> There is an implied class-default attached to a policy-map when you attach
> it to an interface even if you don't specifically assign it.
>
> R1#conf t
> Enter configuration commands, one per line. End with CNTL/Z.
> R1(config)#class-map voice
> R1(config-cmap)#match dscp ef
> R1(config-cmap)#exit
> R1(config)#policy-map LLQ
> R1(config-pmap)#class voice
> R1(config-pmap-c)#priority 83
> R1(config-pmap-c)#^Z
> R1#
> *Aug 7 10:28:35.255: %SYS-5-CONFIG_I: Configured from console by console
> R1#show policy-map
> Policy Map LLQ
> Class voice
> priority 83 (kbps)
>
> R1#conf t
> Enter configuration commands, one per line. End with CNTL/Z.
> R1(config)#int fa0/0
> R1(config-if)#service-policy output LLQ
> R1(config-if)#^Z
> *Aug 7 10:29:18.587: %SYS-5-CONFIG_I: Configured from console by console
> R1#show policy-map int fa0/0
> FastEthernet0/0
>
> Service-policy output: LLQ
>
> queue stats for all priority classes:
>
> queue limit 64 packets
> (queue depth/total drops/no-buffer drops) 0/0/0
> (pkts output/bytes output) 0/0
>
> Class-map: voice (match-all)
> 0 packets, 0 bytes
> 5 minute offered rate 0 bps, drop rate 0 bps
> Match: dscp ef (46)
> Priority: 83 kbps, burst bytes 2050, b/w exceed drops: 0
>
>
> Class-map: class-default (match-any)
> 7 packets, 1458 bytes
> 5 minute offered rate 0 bps, drop rate 0 bps
> Match: any
>
> queue limit 64 packets
> (queue depth/total drops/no-buffer drops) 0/0/0
> (pkts output/bytes output) 4/314
> R1#
>
>
> Cheers,
> Adam
>
>
>
> On Sat, Aug 7, 2010 at 6:05 AM, Steve Di Bias <sdibias_at_gmail.com> wrote:
>>
>> And maybe ask the proctor for clarification??
>>
>> On Fri, Aug 6, 2010 at 1:01 PM, Muzammil Malick <malickmuz_at_gmail.com>
>> wrote:
>>
>> > Guys
>> >
>> > If you were asked to create an LLQ policy in the lab and the question
>> > ONLY asked to give voice traffic a priority value,
>> > would you allocate the remaining bandwidth to the class-default or
>> > just leave it as it is?
>> >
>> > Im going for the, only do what they explicitly stated approach.
>> >
>> >
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>> >
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>> >
>> >
>> >
>> >
>> >
>> >
>>
>>
>> --
>> -Steve Di Bias
>>
>>
>> Blogs and organic groups at http://www.ccie.net
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Received on Sat Aug 07 2010 - 01:40:02 ART