Configuring Qos - Cisco WS-X6066-SLB-APC - Content Switching Module Software Manual

Configuring QoS

Table 41-3 QoS Default Configuration (continued)
Feature
CoS value/drop-threshold mapping
With QoS disabled
Runtime—Port based or VLAN based
Config—Port based or VLAN based
Port trust state
Receive-queue drop-threshold percentages
Transmit-queue drop-threshold percentages
Transmit-queue low-priority/high-priority
bandwidth allocation ratio
Transmit-queue size ratio
CoS value/drop-threshold mapping
1. COPS=Common Open Policy Service
2. QoS implements receive-queue drop thresholds only on ports configured with the trust-cos port keyword.
3. On 1p1q4t and 1p2q2t ports, QoS maps CoS 5 to the strict-priority queues.
Configuring QoS
These sections describe how to configure QoS on the Catalyst 6000 family switches:
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Catalyst 6000 Family Software Configuration Guide—Releases 6.3 and 6.4
41-30
Default Value
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VLAN based
Port based
trust-cos (Layer 2 switching engine)
trust-dscp (Layer 3 switching engine)
All thresholds set to 100%
All thresholds set to 100%
255:1
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Receive-drop threshold 1 and transmit-queue 1/drop threshold 1: CoS 0–7
Enabling QoS, page 41-31
Enabling Port-Based or VLAN-Based QoS, page 41-32
Configuring the Trust State of a Port, page 41-32
Configuring the CoS Value for a Port, page 41-33
Creating Policing Rules, page 41-34
Deleting Policing Rules, page 41-36
1q4t/2q2t and 1p1q4t/1p2q2t ports:
Receive queue 1/drop threshold 1 and
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transmit queue 1/drop threshold 1: CoS 0 and 1
Receive queue 1/drop threshold 2 and
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transmit queue 1/drop threshold 2: CoS 2 and 3
Receive queue 1/drop threshold 3 and
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transmit queue 2/drop threshold 1: CoS 4 and 5
Receive queue 1/drop threshold 4 and
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transmit queue 2/drop threshold 2: CoS 6 and 7
1p1q0t/1p3q1t ports:
– Receive queue 1 (standard) tail-drop threshold:
CoS 0, 1, 2, 3, 4, 6, and 7
– Receive queue 2 (priority): CoS 5
Low priority: 100%
High priority: Not used
Chapter 41 Configuring QoS
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