Link Layer Discovery Protocol Media Endpoint Discovery (LLDP-MED) Network Policy Configuration on ESW2-350G Switches

Objective

Link Layer Discovery Protocol (LLDP) is a protocol that allows network managers to troubleshoot and modify network management in multi-vendor environments.

LLDP Media Endpoint Discovery (LLDP-MED) provides additional capabilities to support media endpoint devices such as enabling the advertisement of network polices for applications like voice or video, device location discovery, and troubleshooting information.

An LLDP-MED network policy is a set of configuration settings for a real-time application such as voice or video. A network policy is included in the outgoing LLDP packets to the attached media endpoint device. The MED then sends its traffic as specified in the network policy it receives.

This document explains how to set up an LLDP-MED network policy on ESW2-350G Switches.

Applicable Devices

• ESW2-350G
• ESW2-350G-DC

Software Version

• 1.3.0.62

Configure LLDP MED Network Policy

Step 1. Use the web configuration utility to choose Administration > Discovery - LLDP > LLDP MED Network Policy. The LLDP MED Network Policy page opens:

Step 2. (Optional) Check the Auto check box in the LLDP-MED Network Policy for Voice Application field if you would like the switch to automatically generate and advertise a network policy for the voice application.

Note: The user cannot manually configure a voice network policy when the Auto check box is checked.

Step 3. Click Apply to update this setting to the Running Configuration file.

Step 4. In order to define a new network policy, click Add. The Add LLDP MED Network Policy window appears.

Step 5. Choose the network policy number to be created from the Network Policy Number drop-down list.

Step 6. Choose the application traffic type that needs to be defined in the network policy from the Application drop-down list.

Step 7. Enter ID of the VLAN to which the traffic should be sent in the VLAN ID field.

Step 8. Click appropriate radio button based on whether VLAN traffic needs to be tagged or untagged in the VLAN Tag field.

• Tagged — The interface is a member of the chosen VLAN and packets sent from this interface destined to the chosen VLAN have the packet tagged with the VLAN ID.

• Untagged — The interface is a member of the chosen VLAN and packets sent from this interface destined to the chosen VLAN are not tagged with the VLAN ID. A port can be added as untagged only to one VLAN.

Step 9. Choose the traffic priority defined by the network policy from the User Priority drop-down list. This is a Class of Service value. CoS is a parameter used in data and voice protocols to differentiate between the payloads in the packets that is transmitted and to prioritize the packet. The highest priority is 7, and the lowest is 0.

Step 10. Choose the Differentiated Services Code Point (DSCP) value to be associated with the application data sent by neighbors of the switch from the DSCP Value drop-down list. This informs neighbors as to how they need to mark the application data that is sent to the switch.

Step 11. Click Apply. The newly configured LLDP-MED network policy is added to the LLDP MED Network Policy Table

Step 12. (Optional) Check the check box of the entry you wish to edit in the Network Policy Number column and click Edit to edit the policy. Follow Step 5 to Step 11 to edit the policy.

Step 13. (Optional) Check the check box of the unwanted entry in the Network Policy Number column and click Delete to delete the policy.

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