Cisco Systems EA6500 Manual De Usuario

The explanations in this section use default values. You can configure many of the parameters (see the 

). All LAN ports of the same type use the same 

drop-threshold configuration.

 illustrates the drop thresholds for a 1q4t ingress LAN port. Drop thresholds in other 

configurations function similarly.

To mark untrusted traffic without policing in Release 12.1(12c)E1 and later releases, use the set ip 
dscp or set ip precedence policy map class commands (see the 

).

To mark untrusted traffic without policing in earlier releases, create a policer that only marks and 
does not police.

These sections describe PFC marking and policing:

CoS

0

an

d

1

CoS

2

an

d

3

Co

S

4

an

d

5

C

oS

6

an

d

7

Traffic is dropped

Drop threshold 4: 100%

Drop threshold 3: 80%

Drop threshold 2: 60%

Drop threshold 1: 50%

Available for
traffic with any
CoS value

Reserved for

CoS 6 and 7

Reserved for
CoS 4 and higher

Reserved for
CoS 2 and higher

Receive queue

(Default values shown)

100% available for CoS 6 and 7

80% available for CoS 4 and 5

60% available for CoS 2 and 3

50% available for CoS 0 and 1

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