How many tcp ports does DB2 use?

[Hemant Shah]

Folks,

How many tcp ports does DB2 server use?

I installed UDB 8.2 on a AIX system and created several instances.
I used consecutive ports for each instance, but when I look at
/etc/services file, it seems that db2icrt command adds 4 ports for each
server.

Example:
I created several instances as follows:

Instance Name Port
----------------------
dbap11 50018
dba2test 60000
dba2prod 60001

[Ian]

Hemant Shah wrote:

Folks,

How many tcp ports does DB2 server use?

I installed UDB 8.2 on a AIX system and created several instances.
I used consecutive ports for each instance, but when I look at
/etc/services file, it seems that db2icrt command adds 4 ports for each
server.

[...]

I had created and instance, and decided that I need to change the name,
so I dropped it, but the entries in /etc/services file is still there.

DB2_dba2tst 60036/tcp
DB2_dba2tst_1 60037/tcp
DB2_dba2tst_2 60038/tcp
DB2_dba2tst_END 60039/tcp

These other ports are created if you have installed DB2 UDB ESE. They
are only used if you are using the database partitioning feature (DPF)
-- the fast communications manager uses these ports for inter-partition
communication.

[Hemant Shah]

While stranded on information super highway Ian wrote:

Hemant Shah wrote:

Folks,

How many tcp ports does DB2 server use?

I installed UDB 8.2 on a AIX system and created several instances.
I used consecutive ports for each instance, but when I look at
/etc/services file, it seems that db2icrt command adds 4 ports for each
server.

[...]
>
I had created and instance, and decided that I need to change the name,
so I dropped it, but the entries in /etc/services file is still there.

DB2_dba2tst 60036/tcp
DB2_dba2tst_1 60037/tcp
DB2_dba2tst_2 60038/tcp
DB2_dba2tst_END 60039/tcp

These other ports are created if you have installed DB2 UDB ESE. They
are only used if you are using the database partitioning feature (DPF)
-- the fast communications manager uses these ports for inter-partition
communication.

I do not use partitioning feature, so, I could modify the /etc/services file
and remove these entries so that I do not get confused reading output
of netstat, etc. commands.

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