[c-nsp] ME3600X Output Drops

Ivan cisco-nsp at itpro.co.nz
Sat Sep 15 19:02:46 EDT 2012


Hi Warris,

Running me360x-universalk9-mz.152-2.S1.bin


Thanks

Ivan

On 16/Sep/2012 12:20 a.m., Waris Sagheer (waris) wrote:
> Hi Ivan,
> The policy should work on EFP regardless of bridge or xconnect.
> Which image are you using?
>
> Regards,
> Waris
>
>
> -----Original Message-----
> From: Ivan [mailto:cisco-nsp at itpro.co.nz]
> Sent: Wednesday, September 12, 2012 7:30 PM
> To: Waris Sagheer (waris)
> Cc: Ivan; cisco-nsp
> Subject: RE: [c-nsp] ME3600X Output Drops
>
> Hi Warris,
>
> Thanks again for your answers.  The requirement to match at vlan level is because I understood from your examples to apply a policy at the EVC level this was required "<<<<< Using vlan level confirms it is the second level and the child policy is the third level"
>
> I have found that a policy such as the following seems to work and handle both tagged and untagged traffic and can be applied to a EVC.  (I wish to apply the same policy to all EVCs regardless of whether the traffic is tagged or not unless customisation is required)
>
> class-map match-any vlan
>   match vlan  1-4094
>
> policy-map EVC-LEAF
>   class class-default
>    queue-limit 491520 bytes
>
> policy-map EVC-VLAN
>   class vlan
>     service-policy EVC-LEAF
>   class class-default
>     service-policy EVC-LEAF
>
> ################
>
> Separate to this, and partly why I was confused, is that I have found the polices applied to the EVC seem to work when bridging but not for a xconnect.  Can you confirm this is expected behavior?  I would prefer to avoid having to bridge and xconnect on the vlan interface.
>
> interface GigabitEthernet0/5
>   switchport trunk allowed vlan none
>   switchport mode trunk
>   service instance 60 ethernet
>    encapsulation dot1q 60
>    service-policy output EVC-VLAN
>    bridge-domain 60   <--------------- bridged
>   service instance 70 ethernet
>    encapsulation dot1q 70
>    service-policy output EVC-VLAN
>    xconnect 1.2.3.4 70 encapsulation mpls <--------------- xconnect
>
> Switch#show policy-map interface gi0/5 service instance 60
>    GigabitEthernet0/5: EFP 60
>
>    Service-policy output: EVC-VLAN
>
>      Class-map: vlan (match-any)
>        0 packets, 0 bytes
>        5 minute offered rate 0000 bps
>        Match: vlan  1-4094
>
>        Service-policy : EVC-LEAF
>
>          Class-map: class-default (match-any)
>            0 packets, 0 bytes
>            5 minute offered rate 0000 bps, drop rate 0000 bps
>            Match: any
>            Queue-limit 491520 bytes
>            Queue-limit current-queue-depth 0 bytes
>                Output Queue:
>                  Tail Packets Drop: 0
>                  Tail Bytes Drop: 0
>
>      Class-map: class-default (match-any)
>        0 packets, 0 bytes
>        5 minute offered rate 0000 bps, drop rate 0000 bps
>        Match: any
>
>        Service-policy : EVC-LEAF
>
>          Class-map: class-default (match-any)
>            0 packets, 0 bytes
>            5 minute offered rate 0000 bps, drop rate 0000 bps
>            Match: any
>            Queue-limit 491520 bytes <----------------------------queue-limit
>            Queue-limit current-queue-depth 0 bytes
>                Output Queue:
>                  Tail Packets Drop: 0
>                  Tail Bytes Drop: 0
>
> Switch#show policy-map interface gi0/5 service instance 70
>    GigabitEthernet0/5: EFP 70
>
>    Service-policy output: EVC-VLAN
>
>      Class-map: vlan (match-any)
>        0 packets, 0 bytes
>        5 minute offered rate 0000 bps
>        Match: vlan  1-4094
>
>        Service-policy : EVC-LEAF
>
>          Class-map: class-default (match-any)
>            0 packets, 0 bytes
>            5 minute offered rate 0000 bps, drop rate 0000 bps
>            Match: any
>
>      Class-map: class-default (match-any)
>        0 packets, 0 bytes
>        5 minute offered rate 0000 bps, drop rate 0000 bps
>        Match: any
>
>        Service-policy : EVC-LEAF
>
>          Class-map: class-default (match-any)
>            0 packets, 0 bytes
>            5 minute offered rate 0000 bps, drop rate 0000 bps
>            Match: any
>
>
>> Hi Ivan,
>> There is no difference in terms of queue depth in case of policy at
>> the port level vs policy at the EVC from hardware programming perspective..
>> Port level policy would consume less queues as compare to queues per EVC.
>> Policy at EVC has separate queues per service instance. However policy
>> at the port level, queues are shared by the all the service instances
>> under that port.
>> Selection of the policy depends on the requirement. If there are
>> separate customers on the EVC then per EVC policy should be used.
>> For you last question, shouldn't untagged means no tag then why is
>> there a requirement to match on the VLAN level? What kind of traffic
>> is there in case of "default"? Is it tagged or untagged?
>> If tagged, is there a range?
>>
>> Regards,
>> Waris
>>
>>
>



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