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Hideki,

see my comments below.

Best regards
Michael

On Thursday, March 28, 2002, at 01:48 PM, Hideki Kishida wrote:

Hi,
I want to execute the same application plural on one machine.
However, I not know whether or not the following is possibility.


1. case same IP(address), different Port

HOST 1 HOST 2
+------+ +------+
|UA 1 |association|UA 1 |
|IP=1 |-----------|IP=2 |
|Port=1| |Port=1|
+------+ +------+ same NIC
|UA 2 |association|UA 2 |
|IP=1 |-----------|IP=2 |
|Port=2| |Port=2|
+------+ +------+

This is possible ny registering two instance with different port numbers.

2.a case same Port, different IP (different NIC)

HOST 1 HOST 2
+------+ +------+
|UA 1 |association|UA 1 |
|IP=1 |-----------|IP=2 | NIC 1
|Port=1| |Port=1|
+------+ +------+
|UA 2 |association|UA 2 |
|IP=2 |-----------|IP=2 | NIC 2
|Port=1| |Port=1|
+------+ +------+

This is also possible by registering two instance with a disjoint set of
IP-addresses. But the forwarding must be in tune with this setup. If that
is not the case you may experience difficulties.

2.b case same Port, different IP (same NIC)(IP alias)

HOST 1 HOST 2
+------+ +------+
|UA 1 |association|UA 1 |
|IP=1 |-----------|IP=2 |
|Port=1| |Port=1|
+------+ +------+ same NIC
|UA 2 |association|UA 2 |
|IP=2 |-----------|IP=2 |
|Port=1| |Port=1|
+------+ +------+

Same as 2a. The SCTP engine only deals with IP-addresses, not with NICs.
Using alias addresses brings some OS dependency into the game. This will
work on *BSD, but I experienced problems on Linux systems (some time ago).

Best Regards,

--
Hideki (Japan)

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Michael.Tuexen AT micmac.franken.de

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• [SCTP-Discussion] multiple UA excecution on one machine, Hideki Kishida, 03/28/2002
  • Re: [SCTP-Discussion] multiple UA excecution on one machine, Michael Tuexen, 03/28/2002

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