Cisco SR224T Administration Guide - Page 114

Port Management Configuring Green Ethernet 9 Availability of 802.3az EEE Please check the release notes for a complete listing of products that support EEE. Default Configuration By default, 802.3az EEE and EEE LLDP are enabled globally and per port. Interactions Between Features The following describe 802.3az EEE interactions with other features: • If auto-negotiation is not enabled on the port, the 802.3az EEE operational status is disabled. The exception to this rule is that if the link speed is 1gigabyte, EEE still be enabled even though Auto-Negotiation is disabled. • If 802.3az EEE is enabled and the port is going Up, it commences to work immediately in accordance with the maximum wake time value of the port. • On the GUI, the EEE field for the port is not available when the Short Reach Mode option on the port is checked. • If the port speed on the GE port is changed to 10Mbit, 802.3az EEE is disabled. This is supported in GE models only. 802.3az EEE Configuration Workflow This section describes how to configure the 802.3az EEE feature and view its counters. STEP 1 Ensure that auto-negotiation is enabled on the port by opening the Port Management > Port Settings page. a. Select a port and open the Edit Port Setting page. b. Select Auto Negotiation field to ensure that it is Enabled. STEP 2 Ensure that 802.3 Energy Efficient Ethernet (EEE) is globally enabled in the Port Management > Green Ethernet > Properties page (it is enabled by default). This page also displays how much energy has been saved. STEP 3 Ensure that 802.3az EEE is enabled on a port by opening the Green Ethernet > Port Settings page. a. Select a port, open the Edit Port Setting page. b. Check the 802.3 Energy Efficient Ethernet (EEE) mode on the port (it is enabled by default). Cisco Small Business 200 Series Smart Switch Administration Guide 115