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

 
Wee Chai
Occasional Visitor

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

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,
3 REPLIES 3
Duncan Morris
Honored Contributor

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

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
Wee Chai
Occasional Visitor

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

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
Hoff
Honored Contributor

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

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.