From: Pierre-Alex Guanel (pierreg@planetkc.com)
Date: Wed Jul 28 2004 - 08:02:25 GMT-3
SETUP:
Server1 and Workstation1 are connected to the Cat3350
Server1 provides the following services:
a) file transfer
b) streaming media
c) ftp
d) Web
Server1 is on port fa 0/24
Workstation is on port fa 0/1
REQUIREMENT: I want to make sure that Workstation 1 receives all the traffic
from Server1 and that nothing is dropped between the two.
Based on observation of data flow I have created the following policy:
a) file transfer = 5 % bandwidth
b) streaming media = 10 % bandwidth
c) ftp = 30 % bandwidth
d) Web = 50% bandwidth
e) Rest= 5% bandwidth
MY SOLUTION:
inbound:
1) Use nbar to classify traffic
2) Set DSCP values and police for bandwidth
3) Apply configurations to fa 0/24 inbound
outbound:
1) Set DSCP to COS map and Cos to Queue map
2) Set Queue bandwidth and buffer size on fa 0/1
MY QUESTION:
Should I add a mirror mirror configuration for return traffic?
That is :
inbound
1) Use nbar to classify traffic
2) Set DSCP values and police for bandwidth
3) Apply configurations to fa 0/1 inbound -----> was fa 0/24 previously
outbound
1) Set DSCP to COS map and Cos to Queue map
2) Set Queue bandwidth and buffer size on fa 0/24 -----> was fa 0/1 above
My gut feeling is that this is not necessary because the server is limited in
its ability to PUSH data to the workstation.
All that the workstation is doing is sending the TCP Acknowledgement back to
the Server (except for streaming).
Could the CCIE Gurus or QoS experts in the group confirm that my assumption
is correct?
Thank you,
Pierre
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