Configuring QoS Rules With the CLI
To configure QoS rules with the CLI, you need to be in QoS Rule configuration mode. Enter configure terminal, then specify a QoS rule with the command qosrule <rule-id>. See the chart below for the options for these two commands.
| Command | Purpose |
| configure terminal | Enter global configuration mode. |
| qosrule rule-id netprotocol {6|17|protocolnumber} qosprotocol {H323|sip|none|other|sccp} | Enter QoS Rule configuration for the specified rule ID. Use show qosrules to obtain a list of rule IDs. The required parameters are:
netprotocol: The network protocol is a standard network protocol number such as 6 for TCP or 17 for UDP. It can be any valid protocol number such as 119 for the SVP protocol, used with Spectralink phones. [Full listing at: http://www.iana.org/ assignments/ protocol-numbers] qosprotocol: The QoS protocol. This can be one of the following: H.323 sip (SIP – Session Initiation Protocol) none (Used to denote all other protocols) |
| … commands … | Enter the QoS rule configuration commands here (see the following table). |
| end | Return to privileged EXEC mode. |
| copy running-config startup-config | This is an optional step to save your entries in the configuration file. |
Commands for QoS Rule CLI Configuration
Once you are in QoS rule configuration mode (see directions above), you can issue any of these QoS rule configuration commands:
Configuring QoS Rules With the CLI
| Command | Purpose |
| dstip ip | Destination IP in the format 255.255.255.255. |
| dstmask ipmask | Destination netmask in the format 255.255.255.255 |
| dstport port | Destination port number from 0 to 65535. |
| srcip ip | Source IP in the format 255.255.255.255. |
| srcmask ipmask | Source netmask in the format 255.255.255.255. |
| srcport port | Source port number from 0 to 65535. |
| action {forward | capture | drop} | Action to take for packets matching the rule. This can be one of the following:
forward—A flow is given an explicit resource request, bypassing the QoS protocol detector and regardless of whether a QoS protocol was specified. capture—The flow is passed through the QoS protocol detector, using the specified QoS protocol. This is the recommended action for static QoS rules that are H.323/SIP based. drop—The flow is dropped. |
| dscp class | The DiffServ codepoint class. This lets you choose a per-hop forwarding behavior for the packets in the flow. It is recommended that you be familiar with RFCs 2475 and 2597 before changing these values. |
| priority rate | The number (0-8) that specifies best effort priority queue, where 0 is default (best-effort) and 8 is highest priority. Priority may be turned on (non-zero) or the average packet rate and TSpec token bucket rate may be specified, but not both. Defaults to 0. |
| avgpacketrate rate | Average packet rate: from 0 to 200 packets per second. If this is a nonzero value, then the TSpec token bucket rate must also be a non-zero value, and priority cannot be set to a non-zero value. Defaults to 0. |
| tokenbucketrate rate | TSpec token bucket rate, from 0 to 1000 Kbps or 1-64 Mbps, depending on the box checked. If this is a non-zero value, then the average packet rate must also be non-zero, and the priority cannot be set to a non-zero value. Defaults to 0. |
| trafficcontrol-enable | Turns traffic control policing on. When traffic control is on, traffic assigned a priority will travel at the assigned rate and no faster. |
| no trafficcontrol | Turns traffic control policing off. This is the default setting. |
Configuring QoS Rules With the CLI
QoS Rule CLI Configuration Example
The following commands configure QoS rule 10 for the set of IP phones whose server is at the IP address 10.8.1.1:
controller (config)# qosrule 10 netprotocol 17 qosprotocol none controller (config‐qosrule)# srcip 10.8.1.1 controller (config‐qosrule)# srcmask 255.255.255.0 controller (config‐qosrule)# srcport 0 controller (config‐qosrule)# dstip 10.8.1.1 controller (config‐qosrule)# dstmask 255.255.255.0 controller (config‐qosrule)# dstport 0 controller (config‐qosrule)# action forward controller (config‐qosrule)# tokenbucketrate 9400 controller (config‐qosrule)# avgpacketrate 35 controller (config‐qosrule)# end
When SCCP phones are used, we recommend that you create a separate VLAN for the SCCP phones and create the following qosrules for G.711 (20ms) codec to handle qosflow traffic:
controller (config)# qosrule 123 netprotocol 17 qosprotocol none controller (config‐qosrule)# srcmask subnet_mask (for example, 255.255.192.0) controller (config‐qosrule)# srcip subnet_IP_addr (for example,172.27.128.0) controller (config‐qosrule)# action forward controller (config‐qosrule)# avgpacketrate 50 controller (config‐qosrule)# tokenbucketrate 10000 controller (config‐qosrule)# exit
controller (config)# qosrule 124 netprotocol 17 qosprotocol none
controller (config‐qosrule)# dstip subnet_IP_addr (for example,172.27.128.0) controller (config‐qosrule)# dstmask subnet_mask (for example, 255.255.192.0) controller (config‐qosrule)# action forward controller (config‐qosrule)# avgpacketrate 50 controller (config‐qosrule)# tokenbucketrate 10000 controller (config‐qosrule)# exit
The following example configures a QoS rule for a 1 Mbps CBR-encoded video streamed from Windows Media Server 9 over UDP transport.
The following lists the example’s configuration parameters:
- Rule ID: 11
- Network protocol: 17 (UDP)
- QoS protocol: None
- Source IP address: 0.0.0.0
- Source subnet mask: 0.0.0.0
- Source port: 0
Configuring QoS Rules With the CLI
- Destination IP address:10.10.43.100 (This is the IP address of the wireless station receiving the video stream.)
- Destination subnet mask: 255.255.255.255
- Destination port: 5004
- Action to take if packets match rule: Forward
- Drop policy: Head
- Token bucket rate: 128 kbytes/second
- Average packet rate: 10 packets/second
The following commands configure the QoS rule for the video streamed from Windows Media Server 9 over UDP transport:
controller (config)# qosrule 11 netprotocol 17 qosprotocol none controller (config‐qosrule)# srcip 0.0.0.0 controller (config‐qosrule)# srcmask 0.0.0.0 controller (config‐qosrule)# srcport 0 controller (config‐qosrule)# dstip 10.10.43.100 controller (config‐qosrule)# dstmask 255.255.255.255 controller (config‐qosrule)# dstport 0 controller (config‐qosrule)# action forward controller (config‐qosrule)# tokenbucketrate 128000 controller (config‐qosrule)# avgpacketrate 10 controller (config‐qosrule)# end