Cisco Catalyst 3750-E User Manual

37-38
Catalyst 3750-E and 3560-E Switch Software Configuration Guide
OL-9775-08
Chapter 37 Configuring QoS
Configuring Standard QoS
Default Egress Queue Configuration
Table 37-9 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 limit is set to 100 percent and rate unlimited.
Table 37-10 sho
ws the default CoS output queue threshold map when QoS is enabled.
Table 37-11 sho
ws the default DSCP output queue threshold map when QoS is enabled.
Ta b l e 37-9 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
Ta b l e 37-10 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
Ta b l e 37-11 Default DSCP Output Queue Threshold Map
DSCP Value Queue ID–Threshold ID
0–15 2–1
16–31 3–1
32–39 4–1
40–47 1–1
48–63 4–1

Cisco Catalyst 3750-E Specifications

General

Series	Catalyst 3750-E
Switching Capacity	32 Gbps
Stacking Bandwidth	32 Gbps
StackWise Plus	Yes
Layer Support	Layer 3
MAC Address Table Size	12, 000 entries
RAM	256 MB
Flash Memory	64 MB
Memory	256 MB DRAM, 64 MB Flash
Operating Temperature	32 to 113°F (0 to 45°C)
Ports	48 10/100/1000 Ethernet ports
Form Factor	Rack-mountable
Jumbo Frame Support	Yes
Input Voltage	100 to 240 VAC
Storage Temperature	-25 to 70 °C
Relative Humidity	10 to 90% non-condensing