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Hi,

Each SCTP endpoint considers each of the addresses of the peer as on path. Therefore a
path is a remote IP address. It is not a pair of a local and remote address.

The decision which of the multiple IP addresses of the peer is considered as the primary path is up to the end point. In the ADD-IP extension there is a way to tell the peer which address to use as the primary.

The source address is chosen by the kernel based on the forwarding table (at least in our implementation).

We provide a primitive (sctp_setprimary) to set the primary path.

Best regards
Michael

On Saturday, Jul 27, 2002, at 19:08 Europe/Budapest, Shigeru Kashihara wrote:

Hello.

I have two questions.

For example, there are host A and host B.
They have each two interfaces.
If host A connect host B,
How do they decide Primary Path ?
How do they connect paths between them ?

ex.)
hostA_if0 -- hostB_if0
hostA_if1 -- hostB_if1
or
hostA_if0 -- hostB_if1
hostA_if1 -- hostB_if0
or
hostA_if0 -- hostB_if1
hostA_if1 -- hostB_if1
or
hostA_if0 -- hostB_if0
hostA_if1 -- hostB_if0

thank you.


--
Shigeru Kashihara
shigeru AT nrd.jp

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• [SCTP-Discussion] Primary Path and paths between hosts, Shigeru Kashihara, 07/27/2002
  • Re: [SCTP-Discussion] Primary Path and paths between hosts, Michael Tuexen, 07/27/2002

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