Cisco Systems 2960-S, 2960 Default Egress Queue Configuration

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Catalyst 2960 and 2960-S Switch Software Configuration Guide
OL-8603-09
Chapter 33 Configuring QoS
Configuring Standard QoS
Table 33-8 shows the default DSCP input queue threshold map when QoS is enabled.
Default Egress Queue Configuration
Table 33-9 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 lim it is set to 100 percent and rate unlimited.
Table 33-10 shows the default CoS output queue threshold map when QoS is enabled.
Table 33-8 Default DSCP Input Queue Threshold Map
DSCP Value Queue ID–Threshold ID
0–39 1–1
40–47 2–1
48–63 1–1
Table 33-9 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
Maximum threshold 400 percent 400 percent 400 percent 400 percent
SRR shaped weights
(absolute) 1
1. A shaped weight of zero means that this queue is operating in shared mode.
25 0 0 0
SRR shared weights 2
2. One quarter of the bandwidth is allocated to each queue.
25 25 25 25
Table 33-10 Default CoS Output Queue Threshold Map
CoS Value Queue ID–Threshold ID
0, 1 2–1
2, 3 3–1
4 4–1
5 1–1
6, 7 4–1