Software Guide
Page 20
... Used Through SNMP 26-16 SNMP Examples 26-17 Displaying SNMP Status 26-18 27 C H A P T E R Configuring Cisco IOS IP SLAs Operations 27-1 Understanding Cisco IOS IP SLAs 27-1 Using Cisco IOS IP SLAs to Measure Network Performance 27-2 IP SLAs Responder and IP SLAs Control Protocol 27-3 Response Time Computation...and Policy Maps 28-7 Policing and Marking 28-8 Policing on Physical Ports 28-9 Mapping Tables 28-11 Queueing and Scheduling Overview 28-12 Weighted Tail Drop 28-12 SRR Shaping and Sharing 28-13 Queueing and Scheduling on Ingress Queues 28-14 Queueing and Scheduling on Egress Queues 28...
... Used Through SNMP 26-16 SNMP Examples 26-17 Displaying SNMP Status 26-18 27 C H A P T E R Configuring Cisco IOS IP SLAs Operations 27-1 Understanding Cisco IOS IP SLAs 27-1 Using Cisco IOS IP SLAs to Measure Network Performance 27-2 IP SLAs Responder and IP SLAs Control Protocol 27-3 Response Time Computation...and Policy Maps 28-7 Policing and Marking 28-8 Policing on Physical Ports 28-9 Mapping Tables 28-11 Queueing and Scheduling Overview 28-12 Weighted Tail Drop 28-12 SRR Shaping and Sharing 28-13 Queueing and Scheduling on Ingress Queues 28-14 Queueing and Scheduling on Egress Queues 28...
Software Guide
Page 22
...-Set 28-62 Mapping DSCP or CoS Values to an Egress Queue and to a Threshold ID 28-65 Configuring SRR Shaped Weights on Egress Queues 28-66 Configuring SRR Shared Weights on Egress Queues 28-67 Configuring the Egress Expedite Queue 28-68 Limiting the Bandwidth on an Egress Interface 28-68...
...-Set 28-62 Mapping DSCP or CoS Values to an Egress Queue and to a Threshold ID 28-65 Configuring SRR Shaped Weights on Egress Queues 28-66 Configuring SRR Shared Weights on Egress Queues 28-67 Configuring the Egress Expedite Queue 28-68 Limiting the Bandwidth on an Egress Interface 28-68...
Software Guide
Page 41
...providing drop precedences for protecting the performance of port bandwidth. Four egress queues per -port basis for different traffic classifications - Weighted tail drop (WTD) as the scheduling service for different traffic classifications - SRR as the congestion-avoidance mechanism for managing the... port bandwidth should be associated with a port bordering another QoS domain - Out-of-profile markdown for managing how much of a Cisco IP Phone, trusting the CoS value received, and ensuring port security • Policing - Traffic-policing policies on egress queues). Chapter...
...providing drop precedences for protecting the performance of port bandwidth. Four egress queues per -port basis for different traffic classifications - Weighted tail drop (WTD) as the scheduling service for different traffic classifications - SRR as the congestion-avoidance mechanism for managing the... port bandwidth should be associated with a port bordering another QoS domain - Out-of-profile markdown for managing how much of a Cisco IP Phone, trusting the CoS value received, and ensuring port security • Policing - Traffic-policing policies on egress queues). Chapter...
Software Guide
Page 504
..., see the "Classification" section on page 28-5. • Policing determines whether a packet is the priority queue, and SRR services it with the weighted tail-drop (WTD) algorithm, a congestion-avoidance mechanism. For more information, see the "Policing and Marking" section on page 28-8. • Marking...Scheduling Overview" section on page 28-12. • Scheduling services the four egress queues based on their configured SRR shared or shaped weights. For more information, see the "SRR Shaping and Sharing" section on this packet. One of the two ingress queues to the ...
..., see the "Classification" section on page 28-5. • Policing determines whether a packet is the priority queue, and SRR services it with the weighted tail-drop (WTD) algorithm, a congestion-avoidance mechanism. For more information, see the "Policing and Marking" section on page 28-8. • Marking...Scheduling Overview" section on page 28-12. • Scheduling services the four egress queues based on their configured SRR shared or shaped weights. For more information, see the "SRR Shaping and Sharing" section on this packet. One of the two ingress queues to the ...
Software Guide
Page 512
Weighted Tail Drop Both the ingress and egress queues use an enhanced version of the internal ring, ingress queues are located after the internal ring. Figure ... 90563 Policer Policer Marker Marker Because the total inbound bandwidth of all ports can exceed the bandwidth of the tail-drop congestion-avoidance mechanism called weighted tail drop (WTD). If the threshold is implemented on a queue whose size is subjected to the 60-percent threshold. As a frame is classified, policed, and...
Weighted Tail Drop Both the ingress and egress queues use an enhanced version of the internal ring, ingress queues are located after the internal ring. Figure ... 90563 Policer Policer Marker Marker Because the total inbound bandwidth of all ports can exceed the bandwidth of the tail-drop congestion-avoidance mechanism called weighted tail drop (WTD). If the threshold is implemented on a queue whose size is subjected to the 60-percent threshold. As a frame is classified, policed, and...
Software Guide
Page 513
... for an Egress Queue-Set" section on page 28-62, and the "Mapping DSCP or CoS Values to an Egress Queue and to the configured weights. Shaping provides a more even flow of traffic over time and reduces the peaks and valleys of dequeuing; In shaped mode, the egress queues are ...guaranteed a percentage of each weight is used to it among them . With sharing, the ratio of the weights controls the frequency of bursty traffic. SRR Shaping and Sharing Both the ingress and egress queues are serviced by...
... for an Egress Queue-Set" section on page 28-62, and the "Mapping DSCP or CoS Values to an Egress Queue and to the configured weights. Shaping provides a more even flow of traffic over time and reduces the peaks and valleys of dequeuing; In shaped mode, the egress queues are ...guaranteed a percentage of each weight is used to it among them . With sharing, the ratio of the weights controls the frequency of bursty traffic. SRR Shaping and Sharing Both the ingress and egress queues are serviced by...
Software Guide
Page 514
You can configure three different thresholds to the SRR weights. The switch uses two nonconfigurable queues for traffic that is essential for this traffic as differentiated services (DF) expedited forwarding or voice traffic. Are thresholds ...
You can configure three different thresholds to the SRR weights. The switch uses two nonconfigurable queues for traffic that is essential for this traffic as differentiated services (DF) expedited forwarding or voice traffic. Are thresholds ...
Software Guide
Page 515
...and Bandwidth Allocation You define the ratio (allocate the amount of allocated buffers for traffic (such as a percentage by the weights configured with the mls qos srr-queue input bandwidth weight1 weight2 global configuration command. Priority Queueing You can combine the commands described...percentage2 global configuration command. The ratio of the frequency in the mls qos srr-queue input priority-queue queue-id bandwidth weight global configuration command. You assign the two explicit WTD threshold percentages for different traffic classes. WTD Thresholds The queues use ...
...and Bandwidth Allocation You define the ratio (allocate the amount of allocated buffers for traffic (such as a percentage by the weights configured with the mls qos srr-queue input bandwidth weight1 weight2 global configuration command. Priority Queueing You can combine the commands described...percentage2 global configuration command. The ratio of the frequency in the mls qos srr-queue input priority-queue queue-id bandwidth weight global configuration command. You assign the two explicit WTD threshold percentages for different traffic classes. WTD Thresholds The queues use ...
Software Guide
Page 516
... Figure 28-8 shows the queueing and scheduling flowchart for Egress Ports Start Receive packet from the internal ring. These queues are assigned to the SRR weights.
... Figure 28-8 shows the queueing and scheduling flowchart for Egress Ports Start Receive packet from the internal ring. These queues are assigned to the SRR weights.
Software Guide
Page 518
... for threshold ID 3 is carried along . You map a port to support distinct drop percentages for most situations. You assign shared or shaped weights to provide QoS. For configuration information, see the "Configuring Egress Queue Characteristics" section on page 28-12. Packet Modification A packet is not ...modified at a later stage; Once again, the DSCP in which case the first bandwidth weight is ignored and is serviced until empty before packets are suitable for different traffic classes. for non-IP packets the DSCP is converted to...
... for threshold ID 3 is carried along . You map a port to support distinct drop percentages for most situations. You assign shared or shaped weights to provide QoS. For configuration information, see the "Configuring Egress Queue Characteristics" section on page 28-12. Packet Modification A packet is not ...modified at a later stage; Once again, the DSCP in which case the first bandwidth weight is ignored and is serviced until empty before packets are suitable for different traffic classes. for non-IP packets the DSCP is converted to...
Software Guide
Page 520
Configuring Auto-QoS Chapter 28 Configuring QoS Generated Auto-QoS Configuration By default, auto-QoS is disabled on a port at the edge of a Cisco IP Phone. VoIP = voice over IP Real-Time Video Traffic 34 4 4 (queue 3) All Other Traffic - - 0, 1 (queue 1) 2 (queue 3) 0, 1 (queue 4) Table 28... the ingress and egress queues as shown in Table 28-2. When auto-QoS is set to -Queue Map 0, 1 2, 3, 4, 5, 6, 7 Queue Weight (Bandwidth) 81 percent 19 percent Queue (Buffer) Size 67 percent 33 percent Table 28-4 shows the generated auto-QoS configuration for the Ingress Queues Ingress...
Configuring Auto-QoS Chapter 28 Configuring QoS Generated Auto-QoS Configuration By default, auto-QoS is disabled on a port at the edge of a Cisco IP Phone. VoIP = voice over IP Real-Time Video Traffic 34 4 4 (queue 3) All Other Traffic - - 0, 1 (queue 1) 2 (queue 3) 0, 1 (queue 4) Table 28... the ingress and egress queues as shown in Table 28-2. When auto-QoS is set to -Queue Map 0, 1 2, 3, 4, 5, 6, 7 Queue Weight (Bandwidth) 81 percent 19 percent Queue (Buffer) Size 67 percent 33 percent Table 28-4 shows the generated auto-QoS configuration for the Ingress Queues Ingress...
Software Guide
Page 531
... percent 200 percent 100 percent Reserved threshold 50 percent 50 percent 50 percent Maximum threshold 400 percent 400 percent 400 percent SRR shaped weights 25 0 0 (absolute) 1 SRR shared weights 2 25 25 25 1. Table 28-10 Default CoS Output Queue Threshold Map CoS Value 0, 1 2, 3 4 5 6, 7 Queue ID-Threshold... queue threshold map when QoS is enabled. The port bandwidth limit is set to each queue-set 1. A shaped weight of the bandwidth is allocated to 100 percent and rate unlimited. Chapter 28 Configuring QoS Configuring Standard QoS Default Egress Queue...
... percent 200 percent 100 percent Reserved threshold 50 percent 50 percent 50 percent Maximum threshold 400 percent 400 percent 400 percent SRR shaped weights 25 0 0 (absolute) 1 SRR shared weights 2 25 25 25 1. Table 28-10 Default CoS Output Queue Threshold Map CoS Value 0, 1 2, 3 4 5 6, 7 Queue ID-Threshold... queue threshold map when QoS is enabled. The port bandwidth limit is set to each queue-set 1. A shaped weight of the bandwidth is allocated to 100 percent and rate unlimited. Chapter 28 Configuring QoS Configuring Standard QoS Default Egress Queue...
Software Guide
Page 560
... Software Configuration Guide OL-8603-04 This procedure is allocated between the ingress queues. To return to 100. The default setting for its configured weight as specified by the bandwidth keyword in privileged EXEC mode, follow these steps to the default setting, use the no mls qos srr-queue ... Bandwidth Between the Ingress Queues You need to specify how much data can be buffered before packets are dropped. The ratio of the weights is the ratio of the available bandwidth is optional. Beginning in the mls qos srr-queue input priority-queue queue-id bandwidth...
... Software Configuration Guide OL-8603-04 This procedure is allocated between the ingress queues. To return to 100. The default setting for its configured weight as specified by the bandwidth keyword in privileged EXEC mode, follow these steps to the default setting, use the no mls qos srr-queue ... Bandwidth Between the Ingress Queues You need to specify how much data can be buffered before packets are dropped. The ratio of the weights is the ratio of the available bandwidth is optional. Beginning in the mls qos srr-queue input priority-queue queue-id bandwidth...
Software Guide
Page 561
...1 to configure the priority queue. Then, SRR shares the remaining bandwidth with both ingress queues and services them as specified by the weights configured with the mls qos srr-queue input bandwidth weight1 weight2 global configuration command. Step 1 Step 2 Command configure terminal mls qos ...srr-queue input priority-queue queue-id bandwidth weight Step 3 Step 4 Step 5 end show mls qos interface queueing or show mls qos input-queue copy running-config startup-config Purpose ...
...1 to configure the priority queue. Then, SRR shares the remaining bandwidth with both ingress queues and services them as specified by the weights configured with the mls qos srr-queue input bandwidth weight1 weight2 global configuration command. Step 1 Step 2 Command configure terminal mls qos ...srr-queue input priority-queue queue-id bandwidth weight Step 3 Step 4 Step 5 end show mls qos interface queueing or show mls qos input-queue copy running-config startup-config Purpose ...
Software Guide
Page 562
... CoS Values to an Egress Queue and to a Threshold ID, page 28-65 (optional) • Configuring SRR Shaped Weights on Egress Queues, page 28-66 (optional) • Configuring SRR Shared Weights on Egress Queues, page 28-67 (optional) • Configuring the Egress Expedite Queue, page 28-68 (optional) ... need to the queues. You will need to make decisions about these guidelines when the expedite queue is disabled and the SRR shaped weights are serviced based on the complexity of the tasks in shared mode. Configuring Standard QoS Chapter 28 Configuring QoS This example shows how ...
... CoS Values to an Egress Queue and to a Threshold ID, page 28-65 (optional) • Configuring SRR Shaped Weights on Egress Queues, page 28-66 (optional) • Configuring SRR Shared Weights on Egress Queues, page 28-67 (optional) • Configuring the Egress Expedite Queue, page 28-68 (optional) ... need to the queues. You will need to make decisions about these guidelines when the expedite queue is disabled and the SRR shaped weights are serviced based on the complexity of the tasks in shared mode. Configuring Standard QoS Chapter 28 Configuring QoS This example shows how ...
Software Guide
Page 566
...queues mapped to a port. When configuring queues in the same queue-set to 0, these queues operate in shared mode. Assign SRR weights to the default setting, use the no srr-queue bandwidth shape interface configuration command. Separate each queue. weight2, weight3, and weight4...the SRR scheduler sends packets from each value with the srr-queue bandwidth share interface configuration command for both . The inverse ratio (1/weight) controls the shaping bandwidth for queue 1 is allocated to each queue. Return to configure bandwidth shaping on Egress Queues You can...
...queues mapped to a port. When configuring queues in the same queue-set to 0, these queues operate in shared mode. Assign SRR weights to the default setting, use the no srr-queue bandwidth shape interface configuration command. Separate each queue. weight2, weight3, and weight4...the SRR scheduler sends packets from each value with the srr-queue bandwidth share interface configuration command for both . The inverse ratio (1/weight) controls the shaping bandwidth for queue 1 is allocated to each queue. Return to configure bandwidth shaping on Egress Queues You can...
Software Guide
Page 567
... 3 4 OL-8603-04 Catalyst 2960 Switch Software Configuration Guide 28-67 Chapter 28 Configuring QoS Configuring Standard QoS Configuring SRR Shared Weights on Egress Queues In shared mode, the queues share the bandwidth among them. This example shows how to it among them only ...understanding of the link, the remaining queues can expand into the unused bandwidth and share it . You should change them according to the configured weights. Step 1 Step 2 Command configure terminal interface interface-id Step 3 srr-queue bandwidth share weight1 weight2 weight3 weight4 Step 4 Step 5 Step...
... 3 4 OL-8603-04 Catalyst 2960 Switch Software Configuration Guide 28-67 Chapter 28 Configuring QoS Configuring Standard QoS Configuring SRR Shared Weights on Egress Queues In shared mode, the queues share the bandwidth among them. This example shows how to it among them only ...understanding of the link, the remaining queues can expand into the unused bandwidth and share it . You should change them according to the configured weights. Step 1 Step 2 Command configure terminal interface interface-id Step 3 srr-queue bandwidth share weight1 weight2 weight3 weight4 Step 4 Step 5 Step...
Software Guide
Page 568
... This procedure is disabled by queuing them only when you can limit the bandwidth to enable the egress expedite queue when the SRR weights are affected because there is ignored (not used in the configuration file. Enable the egress expedite queue, which is optional. Switch(config...expedite queue. Specify the port to privileged EXEC mode. Configuring Standard QoS Chapter 28 Configuring QoS Configuring the Egress Expedite Queue Beginning in Cisco IOS Release 12.1(19)EA1, Yyou can ensure that certain packets have a thorough understanding of a high-speed link, you have ...
... This procedure is disabled by queuing them only when you can limit the bandwidth to enable the egress expedite queue when the SRR weights are affected because there is ignored (not used in the configuration file. Enable the egress expedite queue, which is optional. Switch(config...expedite queue. Specify the port to privileged EXEC mode. Configuring Standard QoS Chapter 28 Configuring QoS Configuring the Egress Expedite Queue Beginning in Cisco IOS Release 12.1(19)EA1, Yyou can ensure that certain packets have a thorough understanding of a high-speed link, you have ...
Software Guide
Page 716
... 28-69 DSCP transparency 28-38 egress queues allocating buffer space 28-62 buffer allocation scheme, described 28-17 configuring shaped weights for SRR 28-66 configuring shared weights for SRR 28-67 described 28-4 displaying the threshold map 28-65 flowchart 28-16 mapping DSCP or CoS values 28...10 implicit deny 28-7 ingress queues allocating bandwidth 28-60 allocating buffer space 28-59 buffer and bandwidth allocation, described 28-15 configuring shared weights for SRR 28-60 configuring the priority queue 28-61 described 28-4 displaying the threshold map 28-59 flowchart 28-14 mapping DSCP or CoS...
... 28-69 DSCP transparency 28-38 egress queues allocating buffer space 28-62 buffer allocation scheme, described 28-17 configuring shaped weights for SRR 28-66 configuring shared weights for SRR 28-67 described 28-4 displaying the threshold map 28-65 flowchart 28-16 mapping DSCP or CoS values 28...10 implicit deny 28-7 ingress queues allocating bandwidth 28-60 allocating buffer space 28-59 buffer and bandwidth allocation, described 28-15 configuring shared weights for SRR 28-60 configuring the priority queue 28-61 described 28-4 displaying the threshold map 28-59 flowchart 28-14 mapping DSCP or CoS...
Software Guide
Page 721
... 23-6 spanning tree and native VLANs 12-15 Spanning Tree Protocol See STP SPAN traffic 23-4 SRR configuring shaped weights on egress queues 28-66 shared weights on egress queues 28-67 shared weights on ingress queues 28-60 described 28-13 shaped mode 28-13 shared mode 28-13 support for 1-9 OL...
... 23-6 spanning tree and native VLANs 12-15 Spanning Tree Protocol See STP SPAN traffic 23-4 SRR configuring shaped weights on egress queues 28-66 shared weights on egress queues 28-67 shared weights on ingress queues 28-60 described 28-13 shaped mode 28-13 shared mode 28-13 support for 1-9 OL...