CatOS to Native IOS Config Conversion Question

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Jun 28th, 2007
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Sorry for this OT post. I'm working to convert a CatOS configuration on a 4000 to IOS for a newer series switch (3700). My question is about a few QoS commands that I'm finding on the CatOS which I can't find enough documentation about to convert to IOS. The commands are as follows:


#qos

set qos enable

set qos map 2q1t 2 1 cos 2-3

set qos map 2q1t 2 1 cos 4-5

set qos map 2q1t 2 1 cos 6-7


I see that we are setting transmit and queuing thresholds for the various CoS. I can't find an equivalent command in IOS that will do this or for that matter is the queuing structure even the same. Can anyone help me to solve this puzzle?


Thanks!


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jgagznos Thu, 06/28/2007 - 11:07
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Thanks, Amit. Very good information. Since this other queue is being used for video conferencing, I need to be 100% sure that I get it configured the same as before.


I see on the 4000 series switch the commands are enabled for the entire switch. It looks like the wrr-queue commands can only be enabled on gigabit interfaces. The only gigabit interfaces I have are uplinks to the core.


Reading the link you posted, it looks like I need to configure something like:


# mls qos

# interface range g1/0/1, g2/0/1 !only 2 gigabit interfaces are used on the switch

# wrr-queue cos-map 2 2 7 !maps cos 2-7 to queue 2

# wrr-queue threshold 2 70 100 ! I have no idea from the last config what these parameters should be set to. These are watermark % for tail drop. Is this what I want?


Thanks,

Joe



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