Are you running your virtual machine with the tool additions/vmware tools
or other? You have to be sure that your vm is running in paravirtualized
mode... in other case your vm will not work properly. I think it is your
issue
El 04/01/2014 00:29, "ilkin" <[email protected]> escribió:

> Hi Dima,Emilio,
>
>
>
> Our concurrent connections are about 790 when we face the situation.
>
>
>
> Yes, I also agree that for putting SSL offloading in LB shoulders. BUT I
> want to get xforward parameter on servers behind the LB. When I use TCP
> farm, servers behind dthe LB only see ZEN’s interface IP as Xforward.
>
>
>
> The topology is like that; client open connection to ZEN, ZEN open
> connection to LB, LB sends to server. In that situation I have to use HTTPS
> farm to decrypt http traffic and send xforward parameter to the servers.
>
>
>
> @Dima you said à To raise this limit you will need to split traffic
> between interfaces: load balance (l4xnat) your load balancer (with SSL
> offload).
>
>
>
> Do you mean to use TCP farm and do SSL offloading in LB?
>
>
>
> Our zen is virtual machine.
>
>
>
> *From:* Emilio Campos [mailto:[email protected]]
> *Sent:* Friday, January 03, 2014 11:10 PM
> *To:* [email protected]
> *Subject:* Re: [Zenloadbalancer-support] HTTPS Farm Capacity
>
>
>
> Hi Ilkin, consider the Dima's indications, and also It would be very
> interesting to know how many  concurrent connections are you managing and
> the hardware (physical or virtual) that you have.
>
>
>
> 2014/1/3 Dima Polyakov <[email protected]>
>
> Well, this is how it goes:
>
> 1)      any HTTPS farm has predefined limit due to TCP ports (ZLB will
> accept traffic at port 443 and will use its any free port to connect to
> port 80). So making HTTPS farm you already limit yourself. To raise this
> limit you will need to split traffic between interfaces: load balance
> (l4xnat) your load balancer (with SSL offload).
>
> 2)      offload SSL – you put ALL traffic encryption/decryption on LB
> shoulders. It is a lot of extra work and you do need fast server for that.
>
>
>
> IMHO, for any farm that is not L4 you need to have a really good reason
> why to use it due to limited connections, cannot get source IP and higher
> hardware requirements.
>
>
>
> Dima
>
>
>
>
>
> *From:* ilkin [mailto:[email protected]]
> *Sent:* Friday, January 3, 2014 10:51 AM
>
>
> *To:* [email protected]
> *Subject:* Re: [Zenloadbalancer-support] HTTPS Farm Capacity
>
>
>
> Hi Dima,
>
>
>
> 1-) What did you mean by conenctions use l4Xnat ? I have to offload SSL
> and thus I want to use HTTPS farm.
>
>
>
> 2-) High CPU only on farm level, there is no CPU/memory problem at
> hardware level.
>
>
>
>
>
> Thank you very much.
>
>
>
> *From:* Dima Polyakov [mailto:[email protected] <[email protected]>]
> *Sent:* Friday, January 03, 2014 5:46 PM
> *To:* [email protected]
> *Subject:* Re: [Zenloadbalancer-support] HTTPS Farm Capacity
>
>
>
> There are few options you can do:
>
> 1)      Connections: use l4xnat – virtually unlimited connections (as
> much as you have memory).
>
> 2)      High CPU load: throw hardware at the problem. Basically use
> faster computer and network cards.
>
>
>
> Dima
>
>
>
> *From:* ilkin [mailto:[email protected]<[email protected]>]
>
> *Sent:* Friday, January 3, 2014 10:17 AM
> *To:* [email protected]
> *Subject:* [Zenloadbalancer-support] HTTPS Farm Capacity
> *Importance:* High
>
>
>
> Hi All,
>
>
>
> Are there any mechanism to increase the connection number / capacity to
> increase in HTTPS Farm?
>
>
>
> As you know, it is possible in TCP Farms.
>
>
>
> I see from Global view on web page that the Load of CPU is %133 on HTTPS
> farm.
>
>
>
> There are also another farms in ZEN that do not suffer from capacity.
>
>
>
> How can I arrange this?
>
>
>
> Thank you.
>
>
>
> *İlkin Turkoğlu (Mr.)*
> Network Admin
>
> ITU Ayazaga Kampusu, Koru Yolu, ARI2 A Blok
> Maslak, Istanbul, Turkiye
> p: (+90) 212-276-1500 | f: (+90) 212-276-1517
> m: (+90) +90 530 822 59 51 | w: www.hititcs.com
>
>
> [image: Hitit Computer Systems] <http://www.hititcs.com/>
>
>
>
>
>
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