[reSIProcate] RRVIP and white list

[kaiduan xie <kaiduanx@xxxxxxxx>]

Some  quesitons,

1) Can anyone explain the rationale behind RRVIP and whitelist?

2) In DnsInterface, it seems that if we do not define USE_DNS_VIP, then RRVIP 
and whitelist will not come into play. Then the question comes, why not define 
USE_DNS_VIP?

3) What is the reason for the following action?

TransactionState::sendToTU()
{
....
     // !bwc! Debatable.
     DnsResult->whitelistLast()
}

4) In TransactionState::sendToTU()
         case 408:
            if(sipMsg->getReceivedTransport() == 0 && mState == Trying)  // 
only blacklist if internally generated and we haven't received any responses yet
            {
               // blacklist last target.
               // ?bwc? How long do we blacklist this for? Probably should make
               // this configurable. TODO
               mDnsResult->blacklistLast(resip::Timer::getTimeMs() + 32000);
            }

            break;

We miss the case where the INVITE client transaction is in Calling state.

BTW, I am referring to 1.1 version.

Thanks,

kaiduan


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