[altq 904] RSVP dataflow queuing

[Koji Nishi <k-nishi@cw.jp.nec.com>]

Hi

Do IP packets of an rsvp dataflow queue at both dynamically created rsvp class
and default class? In my network environment, a sender application sends about
3 Mbps streaming data flow to a receiver. When an rsvpd daemon is activated,
an upper side of cbqmonitor window shows that throughput of class-2(rsvp-class)
is about 300 Kbps and throughput of default-class is about 3 Mbps. The two graph
lines go up at the same time. A /etc/altq.conf configuration is shown in the
following. What is wrong?

/etc/altq.conf
interface fxp1 bandwidth 10000000 cbq-wrr
class cbq-wrr fxp1 root_class NULL priority 0 admission none pbandwidth 100
class cbq-wrr fxp1 def_class root_class borrow root_class priority 0 
pbandwidth 25 default
class cbq-wrr fxp1 f_ag3_t_steve_class root_class borrow root_class 
priority 0 pbandwidth 25 packetsize 156
filter fxp1 f_ag3_t_steve_class 192.168.20.3 0 192.168.10.3 0 0
class cbq-wrr fxp1 rsvp_class root_class priority 7 pbandwidth 50 
packetsize 1476 admission cntlload


I describe delailed information including OS version, network topology and so on.
a) Software
FreeBSD-4.2 RELEASE, ALTQ-3.0 and rsvpd.rel4.2a4-1
b) Network topology
             path->
            <-resv
sender AP	   	     receiver AP
h1 ----------> r1 ----------> h2
                 fxp1(10BaseT/UTP)
                 ^CBQ

c) procedure of operations
(1) rsvpd is activated.
(2) A sender application(AP) and a receiver AP are activated and path and resv
messages are exchanged between them.
(3) Streaming data flow is transfered from the sender AP to the receiver AP.

d) Result of the procedure (3)
At the same time, class-2(rsvp-class) and default(default-class) appears on the
cbqmonitor window.
Why does the streaming data flow queue at the default class?

Throughput (upper side of a cbqmonitor window)
         control
                 about 0 Mbps
         default class
                 MAX: 4.25 Mbps, min: 2.0 Mbps, average: 3.0 Mbps
         class-2 (child class of admission ctlld?)
                 about 300 Kbps
Packet Drop (lower side of cbqmonitor window)
         No class is displayed.

d) rsvpd dump
20:48:36.935 >>>>>>>>>>  Internal STATE: <<<<<<< 146165 <<<<<<
  Sess: 192.168.20.1/1100[17]    Refresh intervals: Path R= 30000  Resv R=30000
    Sender: 192.168.30.1/1100   PHOP: <192.168.30.1 LIH=0>   TTD: 296744
      In_if 2=>fxp2  Outlist <1,3>   flags *E  ip_ttl 128
      T=[509K(509K) 562KB/s 1.51K 1.51K]   Adspec( 0 hop 2.5MBW 4.29Gus 1500B, CL={})

    WF Resv:   Iface 1=>fxp1 Nhop <192.168.20.1 LIH=1>  TTD 303665
       Flowspec [CL T=[509K(509K) 562KB/s 1.5K 1.5K] ]
    Kernel reservation: Iface 1 (192.168.20.2) Rhandle 80fe160
       Flowspec [CL T=[509K(509K) 562KB/s 1.5K 1.5K] ]
    ------------- End of Dest state dump ---------------

Regards.

K. Nishi