[c-nsp] ASR9k Bundle QoS in 6.0.1

[Saku Ytti]

On 13 May 2016 at 03:13, Mark Tinka <mark.tinka at seacom.mu> wrote:

Hey,

> I'd have thought that the Trio will look deeper into the Ethernet frames and
> extract IP- and TCP/UDP-level entropy to use as a hashing mechanism to spray
> bits across the member links of the LAG, but no joy. We tried several
> combinations of the hash keys (including the
> "gtp-tunnel-endpoint-identifier", just for giggles), all under "adaptive"
> mode, and nothing worked.

Trio by default does MPLS payload and Ethernet payload based hashing,
even IP in QinQ in ETH in MPLS by default would be balanced by IP, so
really curious why it didn't work.

> In our case, per-packet load balancing is the only solution for single-flow
> use-cases, primarily because of how policers are programmed for LAG member
> links; but also because single-flow situations need a solution.

You're not worried about reordering, some amount of it seems like it's
guaranteed to happen?

-- 
  ++ytti