[j-nsp] CoS Implementation/Monitoring

[Bostjan Fele]

I guess you are not filling up interface. During your capture you had
approximately 2Mbps traffic on 100Mbps interface. So packets do not get
queued in buffers and since thresholds are not reached RED does not kick
in...

Try with limiting bandwidth for data traffic with schedulers...

Regards,
Bostjan 

-----Original Message-----
From: juniper-nsp-bounces at puck.nether.net
[mailto:juniper-nsp-bounces at puck.nether.net] On Behalf Of Blake van
Eekeren
Sent: Monday, October 09, 2006 3:51 PM
To: juniper-nsp at puck.nether.net
Subject: [j-nsp] CoS Implementation/Monitoring

Hello:

I have been attempting to apply a basic CoS implementation on an M40. 
The appropriate traffic is classified properly, however something does
not jive.  Even with a pegged interface the RED-dropped packets counter
never increments.  I have a data drop profile implemented in the
scheduler for that interface, which applies a rather generous drop
schema.

This makes me think that I do not have the profile applied to the
interface properly, yet all the documentation I read proves otherwise. 
I have passed this issue through numerous people, yet nobody can seem to
explain it.  I would greatly appreciate any input at all.

Thanks.

data-drop-profile {
     interpolate {
         fill-level [ 60 70 80 90 95 ];
         drop-probability [ 70 80 90 97 100 ];
     }
}


blake at NEWJUNIPER> show interfaces queue fe-0/0/3 forwarding-class data
Physical interface: fe-0/0/3, Enabled, Physical link is Up
   Interface index: 131, SNMP ifIndex: 138
   Description: Wireless - To 2950 Switch Forwarding classes: 4
supported, 4 in use
Queues: 4 supported, 4 in use
Queue: 0, Forwarding classes: data
   Queued:
     Packets              :              11498867                   200
pps
     Bytes                :            8378457872               2318584
bps
   Transmitted:
     Packets              :              11498867                   200
pps
     Bytes                :            8526295072               2341096
bps
     Tail-dropped packets :                     0                     0
pps
     RED-dropped packets  :                     0                     0
pps
      Low, non-TCP        :                     0                     0
pps
      Low, TCP            :                     0                     0
pps
      High, non-TCP       :                     0                     0
pps
      High, TCP           :                     0                     0
pps
     RED-dropped bytes    :                     0                     0
bps
      Low, non-TCP        :                     0                     0
bps
      Low, TCP            :                     0                     0
bps
      High, non-TCP       :                     0                     0
bps
      High, TCP           :                     0                     0
bps



--
Blake van Eekeren
Apps Communications