AS, RK , RC concepts in SE model

Hello Folks,

According to the current definition of AS and RK there is 1:1
relationship between them. The AS is an Application Server that
process traffic routed according to the routing key, that is it
process traffic that comes from unidirectional signalling relations,
it does not process traffic that goes in the opposite direction, it
generates traffic in the opposite direction.

For example
The RK1=(OPC=2-200, DPC=2-100) is different from RK2=(OPC=2-100,
DPC=2-200). Each RK defines its own AS, in this case AS1, which
corresponds to RK1, sits in 2-200 signalling point and AS2, which
corresponds to RK2, is in 2-100, and each AS has its own RK.

Could you please clarify

Q1: What is correct 1) or 2)
1) In the described above configuration it is one AS = AS1=AS2, or otherwise
2) AS1 and AS2 are different ASes

I assume 2) is correct. Then Routing Context RC1 corresponding to RK1
is assigned in AS2 and Routing Context RC2 corresponding to RK2 is
assigned in AS1. RC1 and RC2 are different but may be the same by
chance.

Routing Context parameter is mandatory in SUA traffic messages.

In case of SE model could you please clarify

Q2: What Routing Context values will be used in traffic messages
between AS1 and AS2?
Q3: Does it depend on the direction of the message?

Q4: When RC1 is used and when RC2?

Q5: what RC shall be used by response messages?


Thank you in advance

Ilie