> -----Original Message-----
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]
> Sent: Monday, August 20, 2001 5:37 PM
> To: [EMAIL PROTECTED]
> Subject: [Sip-implementors] retransmission time-out
>
>
>
> Hi,
>
> Suppose a UAC has a list of destination IP addresses resulted
> from DNS look
> up,
SRV lookup, I presume.
> and sends an INVITE to the first IP address. Consider the
> following
> failure cases.
>
> (1) The retransmission of INVITE times out after 32 seconds
> and no response
> has been received. Should the UAC try to send the INVITE to the next
> available IP address?
Yes.
>
> (2) The UAC determines that the IP address is not reachable via ICMP
> messages. Should the UAC try the next available IP address?
Yes.
> If so, the
> following statement from bis-04 means that the UAC should consider the
> server-unreachable failure as 400-class error response, only after
> determining that all the IP addresses are not reachable?
Thats right.
>
> In bis-04, Sectio 1.4.2, it states, "....If the client finds
> the server is not reachable at a particular address, it
> SHOULD behave as if it had
> received a
> 400-class error response to that request."
This text is confusing, since it would imply that you don't continue down
the SRV list, which is not true. I will remove that sentence.
Thanks,
Jonathan R.
---
Jonathan D. Rosenberg, Ph.D. 72 Eagle Rock Ave.
Chief Scientist First Floor
dynamicsoft East Hanover, NJ 07936
[EMAIL PROTECTED] FAX: (973) 952-5050
http://www.jdrosen.net PHONE: (973) 952-5000
http://www.dynamicsoft.com
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