Port conflict for Portal installation on AIX

[SandipAgarwalla]

Hi All,

We are trying to install WAS & Portal on AIX 5.3 with Oracle as the DB..

As per as the pre-requirement checks for AIX, it has been recomended to

a. Comment out all entries in /etc/services, that collide with the general SAP ports before starting SAPINST

b. Comment out the entries referring to the following ports (xx is the SAP Instance Number):

- 32xx

- 33xx

- 36xx

- 48xx

When we did a check on the AIX OS, many of the ports mentioned above are being used by the OS by default & can not be commented out.

For requirement no A: Which are the general SAP ports need to be commented? Please provide

me the numbers, so that i can give it to my system admin people, if possible to free them up.

If its not possible to free up the ports, then how to resolve this port confliction?

Please help me.Would appreciate a quick reply.

Regards,

Sandip

[Former Member · Accepted solution]

Hello Sandip,

Can you give a listing of a couple of ports that are used default by AIX that collide with SAP ports?

Kind regards,

Alexander

[SandipAgarwalla · Accepted solution]

Hi Alexander,

i just checked for port 3601, its being used by the OS..

Also system admin people told me that many of the ports in the range of 32XX / 33XX / & so on...where XX - instance number..

I have a list of around 20-25 ports that being used by a SAP system..

So is there a way to solve this port conflict, apart from going for manual checking of each port??

Best Regards,

Sandip

[Former Member · Accepted solution]

Ok i just verified on one of our AIX systems.

Just # out the ports with the xx substituted by your system number.

The entries are in /etc/services bacause AIX classifies them as well known services. That does not neccesarily mean that these are running on your system as a process.

If you are just installing one instance on your system then you will only need to comment out about 4 ports.

Kind regards,

Alexander

[SandipAgarwalla · Accepted solution]

Hi,

Yah i will be installing only one instance. So commenting out only the following entries will do ??

- 32xx

- 33xx

- 36xx

- 48xx

XX- instance number

Then how about the

1) port numbers being used by by J2EE dispatcher,5XX00 to 5XX20...

2)POrt numbers 4NN00....4NN99, used by IGS

3)Port numbers 3NN00..3NN06, used by TREX

and so on..

Does it mean that all these ports have to be checked manually, before assigining a suitable instance number?

Or some other way of assigning the instance number is there

Please help me out.

Regards,

Sandip

[Former Member · Accepted solution]

Hi Sandip,

In practice it is not a problem if multiple service name point to the same port.

If you have the same name with different portnumbers then it will resolve the first one it finds. (top to bottom)

So for example if you have

sapmsDEV  3600/tcp
sapmsQAS  3600/tcp

that is ok.

The problem comes when you have

sapmsDEV  360<b>0</b>/tcp
sapmsDEV  360<b>1</b>/tcp

Then it will always find port 3600 and never 3601.

I hope this answers your question.

Best regards,

Alexander Webster

[SandipAgarwalla · Accepted solution]

Hi,

Thanks for your reply. I just checked the services file..

Strangely all in the range of 3200-3299 are being used.

Also i found, there are two entries for each of the ports

example---

apparenet-tps 3237/tcp # appareNet Test Packet Sequencer

apparenet-tps 3237/udp # appareNet Test Packet Sequencer

apparenet-as 3238/tcp # appareNet Analysis Server

apparenet-as 3238/udp # appareNet Analysis Server

apparenet-ui 3239/tcp # appareNet User Interface

apparenet-ui 3239/udp # appareNet User Interface

triomotion 3240/tcp # Trio Motion Control Port

triomotion 3240/udp # Trio Motion Control Port

sysorb 3241/tcp # SysOrb Monitoring Server

sysorb 3241/udp # SysOrb Monitoring Server

sdp-id-port 3242/tcp # Session Description ID

sdp-id-port 3242/udp # Session Description ID

timelot 3243/tcp # Timelot Port

timelot 3243/udp # Timelot Port

onesaf 3244/tcp # OneSAF

onesaf 3244/udp # OneSAF

vieo-fe 3245/tcp # VIEO Fabric Executive

vieo-fe 3245/udp # VIEO Fabric Executive

dvt-system 3246/tcp # DVT SYSTEM PORT

dvt-system 3246/udp # DVT SYSTEM PORT

dvt-data 3247/tcp # DVT DATA LINK

dvt-data 3247/udp # DVT DATA LINK

procos-lm 3248/tcp # PROCOS LM

procos-lm 3248/udp # PROCOS LM

ssp 3249/tcp # State Sync Protocol

ssp 3249/udp # State Sync Protocol

hicp 3250/tcp # HMS hicp port

hicp 3250/udp # HMS hicp port

sysscanner 3251/tcp # Sys Scanner

sysscanner 3251/udp # Sys Scanner

dhe 3252/tcp # DHE port

How to choose the required port for the dispatcher port?

I just checked for instace number 06,

the entry in services file says,

ironmail 3206/tcp # IronMail POP Proxy

ironmail 3206/udp # IronMail POP Proxy

Please help me out .

Regards,

sandip

[Former Member · Accepted solution]

Hi Sandip,

These entries are not really strange.

AIX has them in there as so called "well known" services.

Please note that there is a difference between the entries. 1 is tcp and the other udp.

I would just pick system number 00. That shouldn't be a problem.

Kind regards,

Alexander Webster

[SandipAgarwalla · Accepted solution]

Thanks a lot for your help, alex.

Regards,

sandip