Re: [PWE3] Flow Label in fat-pw

[Stewart Bryant <stbryant at cisco.com>]

Lucy is correct, we need to turn off s/n or we will have problems.

This is because the s/n is defined per pw not per flow.

Stewart

Yaakov Stein wrote:
> Lucy
>
>  
>
> Can you explain why you believe there will be misordering ?
>
>  
>
> Y(J)S
>
>  
>
> *From:* pwe3-bounces at ietf.org [mailto:pwe3-bounces at ietf.org] *On 
> Behalf Of *Lucy Yong
> *Sent:* Friday, March 27, 2009 03:39
> *To:* pwe3 at ietf.org
> *Subject:* [PWE3] Flow Label in fat-pw
>
>  
>
> Hi Bryant,
>
>  
>
> One comment about using flow label over a pseudowire is:  if the 
> control word is used in a pseudowire and non-zero sequence number is 
> inserted, when using flow labels, it may cause the egress PE burden to 
> perform packet sequencing and increase the possibility of packet out 
> of order. Therefore, it is better to mention in the draft that when 
> the control word presents and non-zero sequence number is used, the 
> flow label should not be used or if it is used, the constant flow 
> label should be used.
>
>  
>
> Regards,
>
> Lucy
>
>  
>
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