AS Java Ports

The default AS Java ports enable you to establish communication to an AS Java instance as part of the SAP NetWeaver cluster. The ports are generated at installation time and when new cluster elements have to be created.

AS Java Ports

For AS Java, 20 ports are available for the ICMelement and 80 are available for the server elements, since five is the maximum number of ports for a server process. Therefore, no more than 16 server cluster elements can be created on one instance.

The default AS Java ports meet the following requirements:

The port value is a number over 50000.
For each cluster element, the ports begin with 50000+100*<instance_number> , where <instance_number> is a two-digit number from 00 to 99 specifying the number of central instance and dialog instances.
Note
You can see the instance number from the directory, where the AS Java is installed. Under /usr/sap/<SID>, there is a directory whose name contains the instance name including the instance number. For example, JC40 (where 40 is the instance number).

Dispatcher <port_index> Values

Index	Port Name
0	HTTP port
1	HTTP SSL port
2	IIOP Initial Context port
3	IIOP SSL port
4	P4 and JMS port
5	P4 SSL port
6	IIOP port
7	Telnet port

For server cluster elements the ports are created from 50000+100*<instance_number>+20+n*5+<port_index>, where n is the number of server elements from 0 to 15 and <port_index> is from 0 to 4 .

You can see the number of the server element from the installation directory of the AS Java. Under <Drive>:\usr\sap\<SAPSID>\<Instance_Name>\j2ee\cluster, there are server<Server_Number> directories representing the server processes in the AS Java. Their number depends on the number specified at installation time.

The ports for AS Java server3 with <instance_number>=15 are from 51535 ( 50000+100*15+20+3*5+0 ) to 51539 ( 50000+100*15+20+3*5+4 ).

Server <port_index> Values

Index	Port Name
0	Join port
1	Debug port

According to the formula mentioned above and the <port_index> values, the server ports for the AS Java are as follows:

AS Java Server Ports

Internal Port	Value
Server Join Port	For s0 = 5NN20; for s1 = 5NN25; for s2 = 5NN30; etc. For s15 = 5NN95, where s0, s1, s2,…, s15 shows the number of server processes, and NN is the instance number.
Server Debug Port	For s0 = 5NN21; for s1 = 5NN26; for s2 = 5NN31; etc. For s15 = 5NN96, where s0, s1, s2,…, s15 shows the number of server processes, and NN is the instance number.
DSR Infrastructure	For s0 = 5NN22; for s1 = 5NN27; for s2 = 5NN32; etc. For s15 = 5NN97, where s0, s1, s2,…, s15 shows the number of server processes and NN is the instance number.

Internal Port

Value

Server Join Port

For s0 = 5NN20; for s1 = 5NN25; for s2 = 5NN30; etc.

For s15 = 5NN95, where s0, s1, s2,…, s15 shows the number of server processes, and NN is the instance number.

Server Debug Port

For s0 = 5NN21; for s1 = 5NN26; for s2 = 5NN31; etc.

For s15 = 5NN96, where s0, s1, s2,…, s15 shows the number of server processes, and NN is the instance number.

DSR Infrastructure

For s0 = 5NN22; for s1 = 5NN27; for s2 = 5NN32; etc.

For s15 = 5NN97, where s0, s1, s2,…, s15 shows the number of server processes and NN is the instance number.

Example

The port for P4 on a dispatcher element with <instance_number>=15 is:

P4 port=50000+100*15+4=51504

Administrative Services for AS Java Ports

There are additional administrative services used by the AS Java. The corresponding ports are shown in the table below.

Administrative Service Ports

Service	Port	Default	Range
Start service HTTP	5NN13	50013	50013-59913
Start service HTTPS	5NN14	50014	50014-59914
SL Controller	5NN17 5NN18 5NN19	50017 50018 50019	Not applicable

Service

Port

Default

Range

Start service HTTP

5NN13

50013

50013-59913

Start service HTTPS

5NN14

50014

50014-59914

SL Controller

5NN17

5NN18

5NN19

50017

50018

50019

Not applicable