[c-nsp] 12.2SX vlan-mapping

[Reuben Farrelly]

On 5/04/2011 7:33 PM, Daniel Holme wrote:
> On 5 April 2011 09:51, Phil Mayers<p.mayers at imperial.ac.uk>  wrote:
>> On 04/05/2011 09:23 AM, Daniel Holme wrote:
>>>
>>> Hello folks
>>>
>>> Does anybody have any experience of poor performance (very low
>>> throughput limitation) when using vlan-mapping in 12.2SX?
>>>
>>>   switchport vlan mapping enable
>>>   switchport vlan mapping 70 770
>>>   switchport vlan mapping 71 771
>>
>> We've used it with no problems on a fairly well-loaded 6704/10gig port,
>> under 12.2(33)SXI. We had well over 30 vlans mapped.
>>
>> What does "poor performance" mean?
>
> Approximately 200kbit/s throughput.

Sounds somewhat like the translation is being punted to software/CPU 
rather than done in hardware.  I was seeing similar figures when I was 
working the CPU hard to do a similar setup, until I figured out the 
right way to configure it on the switch...
I'm using 12.2(33)SXI5 (soon to be SXI6) on an ME6524.

Reuben