I'm about to turn on "mls qos" for the first time on a 6509E.
I would like some background information from the QoS experts on this list.
Last time I turned on "mls qos" it was a 3560 which has certain
undesirable defaults when "mls qos" is turned on. I want avoid the same
result with the 6509 which is our Internet edge device. What I want to
accomplish is to mark all incoming traffic from our transit link to CS0.
I don't want to inadvertently get clobbered by a default limit of x% for
egress queue bandwidth that I'm not expecting.
If I understand what I've found out so far:
On the WS-X6724-SFP:
Seems all possible CoS values are mapped to queue 1 for ingress and
egress. The WRR queue ratios are 100,0,0 for queues 1,2,3 (4 is
priority?) So Queue can utilize 100% of the interface bandwidth. So by
default I shouldn't seem traffic getting bottlenecked where it wasn't
before because of some default config?
Is the simplest configuration to turn on mls qos globally and use a
service policy to set all input to dscp cs0?
Thanks
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