Add Queues Statistics on SFE/SGE Managed Switches

Objective

Queue management is a discipline used in Quality of Service (QoS) internetwork architecture. Queuing is a technique used in network devices like routers and switches to handle congestion. Packets are held in queues for processing. After processing they are sent to the destination.

The objective of this article is to guide you on how to add Queues statistics.

Applicable Devices

• SFE/SGE Managed Switches.

Software Version

• v3.0.2.0

Add Queues Statistics

Note: To access the Queue Statistics page the QoS must be in Advanced mode. For more information refer to the article Class of Service (CoS) Configuration on SFE/ SGE Stackable Managed Switches.

Step 1. Log in to the Web Configuration utility and choose Quality of Service > QoS Statistics > Queues Statistics. The Queues Statistics page opens up:

Note: Total packets is the number of packets forwarded or tail dropped. %TD packets represents the percentage of packets that are tail dropped.

Step 2. Click the Add button. The Add Queues Statistics page opens up:

Step 3. Choose the particular counter set value from the Select Counter Set drop-down list. All Interfaces and queues with high drop precedence belong to Set 1 and Set 2 contains all interfaces and queues with low drop precedence.

Step 4. Select the interface port for which you want to add queues statistics. Click the Port radio button to select a port and then choose a particular port from the drop-down list next to it or you can click the All Ports radio button to select all ports.

Step 5. Choose the queue from the Queue drop-down list for which you want to add the statistics. The range of queue values is 1-4. Choose All from the drop-down list if you want all the queues.

Step 6. Choose a particular drop precedence value from the Drop Precedence drop-down list. Drop precedence helps decide which packets have to be discarded during congestion. Packets with higher drop precedence are dropped earlier than the packets with low drop precedence value.

Step 7. Click Apply. The required queue statistics are added. Click Close to return to the Queue Statistics page.

Caution: This only saves your configuration to the running configuration file. This means any changes made will be lost if the device is rebooted. If you wish to save these changes even after a system reboot, you need to copy the running configuration file to the startup configuration file. See Copy Configuration File on SFE/SGE Series Managed Switches for more information on how to do this.