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# Megaco mib

## Intro

The Megaco mib is as of yet not standardized and our implementation is based on
_draft-ietf-megaco-mib-04.txt_. Almost all of the mib cannot easily be
implemented by the megaco application. Instead these things should be
implemented by a user (of the megaco application).

So what part of the mib is implemented? Basically the relevant statistic
counters of the _MedGwyGatewayStatsEntry_.

## Statistics counters

The implementation of the statistic counters is lightweight. I.e. the statistic
counters are handled separately by different entities of the application. For
instance our two transport module(s) (see [megaco_tcp](`megaco_tcp:get_stats/0`) and
[megaco_udp](`megaco_udp:get_stats/0`)) maintain their own counters and the
application engine (see [megaco](`megaco:get_stats/2`)) maintain its own counters.

This also means that if a user implement their own transport service then it has
to maintain its own statistics.

## Distribution

Each megaco application maintains its own set of counters. So in a large
(distributed) MG/MGC it could be necessary to collect the statistics from
several nodes (each) running the megaco application (only one of them with the
transport).