SIGTRAN Plugtest Day 3

Greetings from Moscow! Here is the wrap-up report for Day 3 of the SIGTRAN
Plugtest.

Protocols tested:
M2PA - 5 implementations
M3UA - 6 implementations
M2UA - 2 implementations
SUA  - 2 implementations

There was one issue raised at the Day 3 wrap-up:

Some ASP implementations are not resending the ASP-Active msg, after not
receiving the ASP-Active-Ack from the SGP. This behaviour is of course
allowed by RFC 4666. The RFC states that:

<snip>
"If the ASP does not receive a response to an ASP Active message
within T(ack), the ASP MAY restart T(ack) and resend ASP Active
messages until it receives an ASP Active Ack message."
<snip>

However the consensus within the group is that such behaviour is not very
logical, and that it would be helpful if the "MAY"
in the text above would be replaced with "SHOULD".

Barry Nagelberg