Maximum number of updates in a single transaction

Gustavo Lozano glozano at
Fri Feb 10 16:30:25 UTC 2006


We are implementing a new service that requires a substantial number 
of dynamic updates to be performed on a zone. We are talking of 2K 
updates in a single dynamic update transaction.

We made some tests with Bind 9.3.2 by sending 60 domain updates in a 
single transaction (TCP) and everything works correctly.

RFC2136 specify a 16 bit limit to UPCOUNT section in the header, so I 
assume that the limit of updates that I can send on a single 
transaction is 2^16.

What is your recommendation of the maximum number of updates in a 
single transaction?

I believe that ISC makes validation tests with each BIND release. How 
many dynamic updates are sent in the ISC's validation tests?

Thank you.

Gustavo Lozano
NIC Mexico (ccTLD .mx)

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