16 Apr
2010
16 Apr
'10
10 a.m.
2010/4/14 Klaus Darilion <klaus.mailinglists(a)pernau.at>at>:
Hi!
Kamailio does not forward the received 503 response but instead generates a
new 500 response. Failure routes are not activated.
Is this a feature or a bug?
A RFC 3261 feature:
16.7 Response Processing
6. Choosing the best response (page 110)
A proxy which receives a 503 (Service Unavailable) response
SHOULD NOT forward it upstream unless it can determine that any
subsequent requests it might proxy will also generate a 503.
In other words, forwarding a 503 means that the proxy knows it
cannot service any requests, not just the one for the Request-
URI in the request which generated the 503. If the only
response that was received is a 503, the proxy SHOULD generate
a 500 response and forward that upstream.
--
Iñaki Baz Castillo
<ibc(a)aliax.net>