Forum Discussion
- anthonymaw_com_Nimbostratus
We were doing web site performance capacity testing using a virtual server on a f5 Big-IP 1600 with 2 node back end, SSL pass through, round-robin algorithm, auto SNAT, using synthetic load generator. The default "Connection Limit" values for the virtual server, pool and nodes were found to be 0 but that appears to be a default connection limit of 200 before the software load generator reported dropped connection attempts so the default 0 value definitely not mean unlimited. Your results with other hardware models may vary.
- Hannes_RappNimbostratus
Yes, the platform itself/available memory determines the max number of records that can be held in the connection table. F5 has the estimate limits available in hardware datasheets.
There's another TCP/IP protocol-related limitation that you should consider if you explicitly translate client source IP addresses (Source NAT), before the requests are routed to BigIP.
The TCP/IP protocol has a limitation of 64k unique sessions
. There's a dedicated 64k-unit-size range for TCP source ports that can be used by the client.from a single IP client (i.e. 1.1.1.1), to the same Server IP/Port listener (i.e 2.2.2.2:443)
Hi DR2016,
its only limited by the system memory. You will find an overview of the estimated L4 concurrent connections of each plattform here...
https://www.f5.com/pdf/products/big-ip-platforms-datasheet.pdf
Cheers, Kai