Forum Discussion
NimbostratusHow to determine if LTM 1600 can handle decrypting and encrypting for exchange2016
Is there any documentation that will tell if our LTM 1600 can handle ssl offloading for our exchange environment. We have about 7400 clients that will be connecting to the VIP. the VIP will decrypt then re-encrypt before sending to back end servers.
2 Replies
Chris_GrantEmployee
The authoritative answer to this would be to talk to your account team. They can look at your actual traffic (7400 clients could be 74000 connections, potentially) and the ciphers you are using and determine whether this will be a problem for you.
This doesn't sound like a tremendous load, but if you are using a cipher that is not hardware accelerated or are using an exceptionally large key you could run into problems. Also be aware that the 1600 is end of sale and will be end of Software Development next month.
- Stanislas_Piro2
Cumulonimbus
Hi,
I have a customer with 20000 users connecting to Exchange 2013 / sharepoint 2013 / Office Web App / Skype on 2 Datacenters with GTM, LTM and APM
the max connection on each DC is:
(tmos) show sys performance connections Sys::Performance Connections --------------------------------------------------------------------------- Active Connections Current Average Max(since 09/22/17 13:27:10) --------------------------------------------------------------------------- Connections 8.8K 9.5K 10.2K --------------------------------------------------------------------------- Total New Connections(/sec) Current Average Max(since 09/22/17 13:27:10) --------------------------------------------------------------------------- Client Connections 86 93 109 Server Connections 74 79 95 --------------------------------------------------------------------------- HTTP Requests(/sec) Current Average Max(since 09/22/17 13:27:10) --------------------------------------------------------------------------- HTTP Requests 167 237 335average SSL TPS is:
(tmos) show sys performance throughput historical Sys::Performance Throughput ---------------------------------------------------------------------- Throughput(bits)(bits/sec) Current 3 hrs 24 hrs 7 days 30 days ---------------------------------------------------------------------- In 75.6M 53.1M 23.5M 21.9M 22.1M Out 77.3M 54.9M 24.0M 22.5M 22.7M ---------------------------------------------------------------------- SSL Transactions Current 3 hrs 24 hrs 7 days 30 days ---------------------------------------------------------------------- SSL TPS 34 38 19 19 32 ---------------------------------------------------------------------- Throughput(packets)(pkts/sec) Current 3 hrs 24 hrs 7 days 30 days ---------------------------------------------------------------------- In 11.0K 8.3K 3.8K 3.7K 3.8K Out 12.9K 9.8K 4.4K 4.3K 4.4Kthe max of last hours is :
(tmos) show sys performance throughput Sys::Performance Throughput ----------------------------------------------------------------------------- Throughput(bits)(bits/sec) Current Average Max(since 09/22/17 13:24:59) ----------------------------------------------------------------------------- In 67.5M 53.7M 124.3M Out 69.4M 55.5M 125.8M ----------------------------------------------------------------------------- SSL Transactions Current Average Max(since 09/22/17 13:24:59) ----------------------------------------------------------------------------- SSL TPS 35 38 52 ----------------------------------------------------------------------------- Throughput(packets)(pkts/sec) Current Average Max(since 09/22/17 13:24:59) ----------------------------------------------------------------------------- In 9.3K 8.4K 16.7K Out 11.2K 9.9K 19.5K
