Brian,
ECMP and LAG (often same code) in most cases indeed use 5 tuples to populate hashing buckets for per flow load balancing.
Cheers,
Jeff
On 4/11/17, 19:26, "ietf on behalf of Brian E Carpenter" <ietf-bounces@xxxxxxxx on behalf of brian.e.carpenter@xxxxxxxxx> wrote:
On 12/04/2017 06:54, Nick Hilliard wrote:
> Brian E Carpenter wrote:
>> BTW I don't see ECMP or load balancing listed in section 3. Those
>> seem to be major applications of transport layer snooping.
>
> no, any load balancing which needs to scale needs to be stateless, so
> you don't want session based mechanisms handling this.
Server load balancing is often stateful, and even stateless SLB
usually includes transport info in the hash. Or so I learned while
working on RFC 7098. People who know also informed me that ECMP
sometimes (not always) uses transport info (see RFC 6438).
Brian