link connection ?

[kim yong sin <dragon@dcn.soongsil.ac.kr>]

S ----- R ------ K


By ns, in fact,

(TCP agent)                          (TCP sink agent)
  S -------------- R --------------- K
     --------------    ---------------

link_ (S,R)
link_ (R,S)

link_ (R,K)
link_ (K,R)

I want process packets in Node (R)  before send to K or S.
-- > i.e before link_::recv (R,K) and after link_::recv (K,R)
So, i extended 'linkDelay' class.
But, two link's process is isolated.
What can I do???

STEP

<<TCP packet send>>
1. link_(S,R) :: recv  --> process = Node(R) save packet in 'DropTail
queue'(It's ok)
2. link_(R,K) :: recv  or Agent :: recv.

<<TCP ack send>>
3. link_(K,R) :: recv (???) --> process = Node(R) delete saved packet in
'that (step 1) queue'
( can't insert delay and can't share 'saving buffer')

I can't find method to solve it. What's your idea?

--------------------------------------
  Yong-sin Kim. DCN-SSU-KOREA.     
  Lab:02-820-0823 Pager:015-101-3904                      
--------------------------------------