Re: Basic QoS config

SNMP also uses UDP 161,162 not TCP : )

On Wed, Mar 13, 2013 at 11:07 AM, ftt <femi0802_at_gmail.com> wrote:
> Hi
>
> Without labbing this up, it looks to me like method 1 does two things,
> restricts snmp traffic to 256k and restricts total bandwidth to 512k.
> Method 2 restricts snmp traffic to 256k, but doesn't control total traffic
> (i.e any other types of traffic).
>
> Therefore i will say, because your question was about restricting snmp
> traffic ONLY, both methods meet the requirement as there are no
> requirements about total traffic not exceeding 512k.
>
>
>
>
> On Sun, Mar 10, 2013 at 11:43 AM, Sarad <tosara_at_gmail.com> wrote:
>
>> Hi Guys,
>>
>> I came up with the bellow doubt in my mind while labing some QoS stuff,
>> appreciate if you can share your opinion on this
>> R1 & R2 connected with a 512 Kbps link, We need to gurantee snmp will get
>> 256Kbps in a congested scenario. Between two methods bellow what do you
>> think most appropriate method? Issue I see with method 2 is bandwidth
>> command on the interface will not limit the traffic as a result traffic can
>> go up to the physical interface rate. So I believe option 1 is more
>> accurate. Please let me know what your openion on this.
>>
>>
>>
>> *Methos 1*
>>
>> access-list extended SMTP_TO_SERVER
>> permit tcp any host any eq smtp
>>
>>
>> class-map match-all SMTP_TO_SERVER
>> match access-group name SMTP_TO_SERVER
>>
>> *policy-map CBWFQ
>> class class-default
>> shape-average 512000
>> class SMTP_TO_SERVER
>> bandwidth 256
>> *
>> interface Serial0/0/0
>> bandwidth 512
>> service-policy output CBWFQ
>>
>>
>>
>> interface Serial0/0/0
>> bandwidth 512
>> service-policy output CBWFQ
>>
>>
>>
>> ---------------------------------------------------------------------------------------
>> *Method 2*
>>
>> interface Serial0/0/0
>> bandwidth 512
>> service-policy output CBWFQ
>> ip access-list extended SMTP_TO_SERVER
>> permit tcp any host any eq smtp
>>
>>
>> class-map match-all SMTP_TO_SERVER
>> match access-group name SMTP_TO_SERVER
>>
>> *policy-map CBWFQ
>> class SMTP_TO_SERVER
>> bandwidth 256*
>>
>> interface Serial0/0/0
>> bandwidth 512
>> service-policy output CBWFQ
>>
>> Thanks
>> Sara
>>
>>
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