[altq 1110] Re: ingress traffic RED?

["thkang" <thkang@adams.kwangwoon.ac.kr>]

Thank you for reply my help.
I thought that I mistake to send mail in cut & paste. sorry.

+-------+                 +----------------+                 +---------+
+ Server +----------+RED router(ALTQ)+-----------+ Client      + 
+-------+  100Base  +-------+--------+  100Base    +---------+
                             (ti0)                     (ti1)      
RED tuning parameter (min_th, max_th or so)
interface ti0 bandwidth 100M red
interface ti1 bandwidth 100M red

I'm debuging in RED queue management in real network that focus in fairness.
but always fail. then I found that RED only work one-way direction in altq.  
 
If I adapt RED in interface ti0 and not ti1, in RED router,
RED works only outgoing packet from interface ti0 to Server.
Or, if I adapt RED in interface ti1 and not ti0, in RED router,
RED works only outgoing packet from interfce ti1 to Client.

For simpility, in below nework topology. 
If Server send traffic to cleint RED queue built in RED queue, OK. RED do work.
But, if Client send traffic to Server bulit in RED queue Fail. RED do not work.

+-----------------+                  +---------+
+     Server             +-----------+  Client    + 
+ (installed ALTQ)   + 100BaseT   +              +
+-----------------+                  +---------+
                 (ti0)

How can I do makeing RED for receive packet from Client to Server, or bi-directionally? 

    thank for reading.
        by thkang