[c-nsp] ME3400 DSCP EF bits stripped.

[Lee Starnes]

Thanks Marrias. Yep this works.

Thanks!

-Lee

On Sun, May 6, 2012 at 10:30 PM, Mattias Gyllenvarg <
Mattias.Gyllenvarg at bredband2.se> wrote:

> Try this
>
>
>
> policy-map trust
> class class-default
> set dscp dscp
>
>
> int fas0/24
> service-policy input trust
>
> //Mattias
>
> On 5 May 2012 01:07, Lee Starnes <lee.t.starnes at gmail.com> wrote:
>
>> Hello all,
>>
>> I have been banging my head against the wall for some time now trying to
>> figure out why the DSCP bits are being stripped and replaced with "0" on
>> all packets when coming from a customer connected to one of our ME3400
>> switches. The switch is not doing any routing for them. It is just acting
>> as a L2 transport between their gear and our network.
>>
>> Customer is connected to to port FA0/24 with that port being an access
>> switchport. The VLAN associated with it is not an interface on the switch.
>> The VLAN is simply just trunked via Gig0/1 to a 6509. The customer is
>> setting dscp bit EF on their voice traffic and when that traffic enters
>> the
>> ME3400, those bits change to 0. Is there something that needs to be set to
>> prevent this data from being stripped? We have monitored the traffic with
>> an RSPAN port and are not able to see anything other then dscp 0 on all
>> traffic for this interface. While I have not looked at other interfaces, I
>> suspect this is the same for all of them. Below is the config for this.
>>
>>
>>
>> vlan 800
>>  remote-span
>> !
>> vlan 936
>> !
>> interface FastEthernet0/24
>>  description  ETHERNET - Circuit ID: xxxxxxxxxxxxxx
>>  switchport access vlan 936
>> !
>> interface GigabitEthernet0/1
>>  description uplink to 6509
>>  port-type nni
>>  switchport trunk allowed vlan 32,500-520,800,936
>>  switchport mode trunk
>>  load-interval 30
>>  speed nonegotiate
>>  !
>> monitor session 3 source interface Fa0/24
>> monitor session 3 destination remote vlan 800
>>
>>
>> Any ideas would be greatly appreciated.
>>
>> Thanks,
>>
>> -Lee
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>>
>
>
>
> --
> *Med Vänliga Hälsningar - Best Regards*
>
> *Mattias Gyllenvarg*
> *Nätutveckling*
> Bredband2 - bara hårda paket
>
> Tel: +46 406219712
>
>