[asterisk-users] sip show peers

[Andrew Kirch]

Response below 
> -----Original Message-----
> From: asterisk-users-bounces at lists.digium.com [mailto:asterisk-users-
> bounces at lists.digium.com] On Behalf Of Eric Rousse
> Sent: Thursday, September 14, 2006 10:44 AM
> To: asterisk-users at lists.digium.com
> Subject: [asterisk-users] sip show peers
> 
> Hello guys,
> 
> Is there anyone who could explain me some stuff about sip show peers ?
> 
> 108/108                    10.1.1.40                   5060     OK (1
ms)
> 107/107                    10.1.1.246       D          51074    OK
(101
> ms)
> 
> The port seems different here, and the main difference is that the
> extension 108, is a server with a fixed IP
> 107, is a client with a softphone (X-Lite) and a dynamic IP.
> 
> Why the diffrence in the port ?
> And why the difference in the reponse time ?
> 
> We are on the same physical network, a ping is giving me a response of
> 1ms for each.
> Is it because the softphone is with a dynamic IP and Asterisk is
> treating this differently ?
> 
> Thanks,
> <SNIP>

A SIP ping and an ICMP ping are two different entities.  The SIP ping
operates at a higher level in the OSI stack than a simple ICMP ping.
This means that whatever is receiving the ping has to do more work to
decode it, and respond.  I wouldn't worry about the latency difference
as the SIP Ping is prioritized a bit more by a computer which is
multitasking than by a hard phone which is not.  As for the port, they
simply chose to negotiate on a higher port.  You might check your X-Lite
settings, but I don't think this will break anything!

Andrew