topic Re: TCPIP Service - can increase sb_max value? Any minimum requirement? in Operating System - OpenVMS

TCPIP Service - can increase sb_max value? Any minimum requirement?

Wee Chai — Fri, 11 Sep 2009 01:58:40 GMT

we found that sb_max default value for our system environment not enough, but I do not know what is the maximum value can be set for sb_max and what is the minimum requirement to increase sb_max value? Can I set to 2,000,000?
(OpenVMS)

Regards,

Re: TCPIP Service - can increase sb_max value? Any minimum requirement?

Duncan Morris — Fri, 11 Sep 2009 09:02:36 GMT

Wee Chai,

welcome to the OpenVMS ITRC forum!

You have not indicated which version of TCP/IP Services you are running, but the following link should give you the information you require to increease sb_max.

I did not see a maximum value indicated..

http://h71000.www7.hp.com/doc/732final/6631/6631pro_005.html

Duncan

Re: TCPIP Service - can increase sb_max value? Any minimum requirement?

Wee Chai — Sat, 12 Sep 2009 13:05:05 GMT

Hi Duncan,

Thanks for your reply. So far, I can't find any document about the limit of sb_max. There's a worry whether they server cannot serve the higher value of sb_max. :(

Regards,
Wee Chai

Re: TCPIP Service - can increase sb_max value? Any minimum requirement?

Hoff — Sat, 12 Sep 2009 14:46:33 GMT

AFAICT, no limit is documented here.

I don't know that it's tied into this particular area, but also check the setting of MAXBUF system parameter and the process BYTLM quota.

Try setting sb_max to a big number, and see what happens. Or contact the HP TCP/IP Services support folks directly, and ask for the official (supported) limit.