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5 votes

STP packets and QoS

There's an excellent post by a Cisco employee on Cisco support forums covering this: The QoS value is not part of BPDU frame, but an internal value assigned on the RBUS (assuming 6500 platform) ...
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  • 1,700
3 votes

QOS - CPU CoS Weight- pluribus switches

Can it be traffic hampering if I change the cos-weight? The Class of Service (not Server) allows you to give priority to some traffic over other, based on the CoS value. What is important is the ...
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3 votes
Accepted

QoS Classification and Drop Rate

Does WRED only make sense if there is more than 1 dscp marking in a queue ? Not really. The point of Weighted RED is to assign different weights to different traffic classes. Doesn't make much ...
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2 votes
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Bandwidth hogging on managed switched network 17 users

QoS mechanisms only come into effect when there is congestion on the link. If you have a 20M circuit but connected to a 1G interface, your device will never recognize the congestion because the ...
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  • 949
2 votes
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QoS (802.1p) for iSCSI Traffic on Cisco Nexus 3048

If the clasification isn't available on the switch model, then you need to look at something like ACL-based QoS classification (Layers 2, 3, and 4) so that you can mark what traffic, by IP address ...
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2 votes
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Match cos is not supported for this interface in the output direction

i find a success method to policy a traffic of Specify ip's or else on CISCO ASR 903 IOS XE 3.18S for example i have ip's 74.0.0.0/8 for some serivce (Like google) 1-subnet a full range from 1.0.0....
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1 vote

QoS - Add DSCP EF tag with L2 switches?

More than likely, packets from the phone have the correct DSCP values: EF for the data, and something like AF31 for the control traffic (you really do not want the control traffic marked as EF). Your ...
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1 vote
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How do you schedule traffic that exits via a bridge-domain?

So I just came up with a hideous hack that gives the desired result: firewall { family inet { filter DSCP-CLASSIFIER { term MATCH-EF { from { ...
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