7 Jul
2006
7 Jul
'06
11:30 a.m.
Following lines are an extract from the SIPit preliminary report regarding
supported DNS features in current implementations:
160 people from 16 countries attended SIPit 18 with
*73* different SIP
implementations:
Full 3263 25
3263 (no naptr,SRV on) 13
A only 22
IP only (no DNS) 9
Which gives a percentage of 38/73 supporting SRV records, so more or less
half of the implementations supports this type of load balancing.
This value should be used with care because implementations include both UAs
and proxies/redirect/* servers.
I can also say that a higher percentage of desktop SIP phones supports DNS
SRVs, but since it's just my impression from the ones I have touched I can
not assure nor give a percentage...
Hope it helps,
Samuel.
2006/7/6, G.Jacobsen < g_jacobsen(a)yahoo.co.uk>gt;:
Samuel,
Do you happen to know what percentage of UAs out there are really "Compliant"
UAs ?
My impression so far regarding SRV DNS records is that they are
theoretically a nice feature but unfortunately almost useless since one
needs to cater for those non-compliant UAs anyway. I would love to be
convinced of the contrary.
Can anyone supply real usage figures regarding compliant/non-compliant UAS
?
TIA
Gerry
-----Original Message-----
*From:* serusers-bounces(a)lists.iptel.org [mailto:
serusers-bounces(a)lists.iptel.org]*On Behalf Of *samuel
*Sent:* Donnerstag, 6. Juli 2006 14:52
*To:* Ritesh Jalan
*Cc:* seruser List
*Subject:* [Bulk] Re: [Serusers] Global Failover Server
Look at RFC 3623.
Cofigure two SRV entries in
your DNS, one pointing to the UAS SERver and another to the UK server.
"Compliant" UAs will try to contact the other proxy upon failure of their
current one.
Samuel.
2006/7/5, Ritesh Jalan <ritesh.j(a)net4.in>in>:
Hi All
Pls. guide me how can we implement failover on SIP Server located
globally, Like one server in USA another in UK.
Ritesh Jalan
Mobile: 91-9818616329
MSN: ritesh_jalan(a)hotmail.com
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