Cisco Systems 3560 Manual De Usuario

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Catalyst 3560 Switch Software Configuration Guide
OL-8553-06
Chapter 34      Configuring QoS
Configuring Standard QoS
Default Ingress Queue Configuration
 shows the default ingress queue configuration when QoS is enabled.
 shows the default CoS input queue threshold map when QoS is enabled.
 shows the default DSCP input queue threshold map when QoS is enabled.
Default Egress Queue Configuration
 shows the default egress queue configuration for each queue-set when QoS is enabled. All 
ports are mapped to queue-set 1. The port bandwidth limit is set to 100 percent and rate unlimited.
Table 34-6
Default Ingress Queue Configuration 
Feature
Queue 1
Queue 2
Buffer allocation
90 percent
10 percent
Bandwidth allocation 
1
1.
The bandwidth is equally shared between the queues. SRR sends packets in shared mode only.
4
4
Priority queue bandwidth 
2
2.
Queue 2 is the priority queue. SRR services the priority queue for its configured share before servicing the other queue.
0
10
WTD drop threshold 1
100 percent
100 percent
WTD drop threshold 2
100 percent
100 percent
Table 34-7
Default CoS Input Queue Threshold Map
CoS Value
Queue ID–Threshold ID
0–4
11
5
21
6, 7
11
Table 34-8
Default DSCP Input Queue Threshold Map
DSCP Value
Queue ID–Threshold ID
0–39
11
40–47
21
48–63
11
Table 34-9
Default Egress Queue Configuration 
Feature
Queue 1
Queue 2
Queue 3
Queue 4
Buffer allocation
25 percent
25 percent
25 percent
25 percent
WTD drop threshold 1
100 percent
200 percent
100 percent
100 percent
WTD drop threshold 2
100 percent
200 percent
100 percent
100 percent
Reserved threshold
50 percent
50 percent
50 percent
50 percent