|
| Chapter 19 Quality of Service (QoS) |
| Table 107 QoS Policer Setup: Add | |
| LABEL | DESCRIPTION |
| Meter Type | Select a traffic metering algorithm used in this policer. |
|
| The Simple Token Bucket algorithm uses tokens in a bucket to control |
|
| when traffic can be transmitted. Each token represents one byte. The |
|
| algorithm allows bursts of up to b bytes which is also the bucket size. |
|
| The Single Rate Three Color Marker (srTCM) is based on the token |
|
| bucket filter and identifies packets by comparing them to the Committed |
|
| Information Rate (CIR), the Committed Burst Size (CBS) and the Excess |
|
| Burst Size (EBS). |
|
| The Two Rate Three Color Marker (trTCM) is based on the token bucket |
|
| filter and identifies packets by comparing them to the Committed |
|
| Information Rate (CIR) and the Peak Information Rate (PIR). |
|
| See Section 19.8 on page 324 for more information. |
|
|
|
| Committed | Specify the guaranteed rate at which packets are admitted to the network. |
| Rate | This is to specify how many bytes of tokens are added to a bucket every |
|
| |
|
| second. |
|
|
|
| Committed | Specify the guaranteed amount of bytes that are admitted at the |
| Burst Size | committed rate. |
|
| This is the maximum size of the (first) token bucket in a traffic metering |
|
| algorithm. |
|
|
|
| Excess Burst | Specify the additional amount of bytes that are admitted at the committed |
| Size | rate besides the committed burst size. |
|
| This is the maximum size of the second token bucket in the srTCM. |
|
|
|
| Peak Rate | Specify the maximum rate at which packets are admitted to the network. |
|
| The peak rate should be greater than or equal to the committed rate. This |
|
| is to specify how many bytes of tokens are added to the second bucket |
|
| every second in the trTCM. |
|
|
|
| Peak Burst | Specify the maximum amount of bytes that are admitted at the committed |
| Size | rate. |
|
| This is the maximum size of the second token bucket in the trTCM. |
|
|
|
| Conforming | Specify the action that the |
| Action | packets. |
|
| Select Pass to forward the packets. |
|
| Select DSCP Mark to assign a specified DSCP number (between 0 and 63) |
|
| to the packets and forward them. The packets are dropped if there is |
|
| congestion on the network. |
|
|
|
| Partial | Specify the action that the |
| Conforming | packets. |
| Action | Select Pass to forward the packets. |
|
| |
|
| Select Drop to discard the packets. |
|
| Select DSCP Mark to assign a specified DSCP number (between 0 and 63) |
|
| to the packets and forward them. The packets are dropped if there is |
|
| congestion on the network. |
|
|
|
| 321 |
|
|