[c-nsp] 7600 ES20 first questions

[Saku Ytti]

On (2008-02-08 19:51 +0200), Tassos Chatzithomaoglou wrote:

Hello Tassos,

> vlan 3500/x -------------- vlan 3600/x
>         6500 ---- 7600 ---- 6500
> 
> 1) Will the following work?
Should work. If not, it's config error, but what you want to do
is supported.
 
> 2) If i want to terminate locally on the 7600 an inner vlan, can i use the following along with the above translation:
Will work as is.

> 3) What kind of egress QoS can i use on the main interface and on the subinterface? I did some tests but i wasn't successful.

On egress you can only shape, policer is possible in hardware but
not supported today. On ingress you can only police, shaper is not
supported in hardware.
So change police to shape. This should work in subinterface.

> 7609#sh policy-map TR2
> 
>    Policy Map TR2
>      Class class-default
>        Average Rate Traffic Shaping
>        cir 50000000 (bps)
> 
> 7609(config-if)#service-policy output TR2
> Service-policy can not be applied to main interface when service-instances are configured.

Apply it under the EVC instance configration, it should work as-is.
Matching in EVC is very limited, only CoS so far, it's software not
hardware limitation.


I was extremely disappointed to notice that ES20 does not support
locally signifacant VLAN subinterfaces when using single tags,
when using double tags it does. This however should be fixable
in unknown time frame (I'd recommend to wait if this is
important requirement and tell your account team it's stopping
you from investing in this card).

Thanks,
-- 
  ++ytti