[SIPForum-discussion] Flooding in SIP.
ayyanar.kalimuthu at wipro.com
ayyanar.kalimuthu at wipro.com
Wed Jun 23 02:52:20 UTC 2010
The T1*64 is nothing but Timer B which is INVITE transaction timeout
timer. On expiry of this timer, the UAC receives a
408 Request timeout response from the UAS since it is unable to process
the request within T1*64 (500 ms * 64 = 32 seconds).
Regards,
Ayyanar
________________________________
From: discussion-bounces at sipforum.org
[mailto:discussion-bounces at sipforum.org] On Behalf Of intesab hussain
Sent: Tuesday, June 22, 2010 5:07 PM
To: discussion at sipforum.org
Subject: [SIPForum-discussion] Flooding in SIP.
Hi everyone,
I have 2 Questions regarding to flooding attack.
1. When INVITE is forwarded to proxy upto what time it must be
get connected ? As I know it is 64*TI, whereas TI=500ms and in one
article I read 3 minutes. Please someone clarify the correct timing.
2. How UAC can receive multiple request at a time? At a time only
single person can talk and other may be in waiting. How Flooding effects
on UAC in case of multiple request at a time, As it is not possible to
talk with many persons at a time.
Thanks in advance.
INTESAB
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