Re: Is there any data on packet duplication?

On 23/Jun/20 07:21, Saku Ytti wrote:

Metro: S1-S2-S3-S1 PE1: S1 PE2: S2 Customer: S3 STP blocking: ANY

S3 sends frame, it is unknown unicast flooded, S1+S2 both get it (regardless of which metro port blocks), which will send it via PE to Internet.

STP doesn't help, at all. Hope this helps.

In the above, is S3 part of the Metro-E ring, or simply downstream of S1 and S2? Mark.