Cisco 3845 Software Guide - Page 135

Chapter 6 Configuring Synchronous Ethernet Configuring SyncE Command Step 4 network-clock-select mode {nonrevert | revert} Step 5 Step 6 Step 7 end show network-clocks copy running-config startup config Purpose (Optional) Configure the reference switching mode to determine the action to be taken if an input clock with a higher priority than the selected reference becomes valid. • nonrevert-The new clock does not immediately become valid but is selected only if the current reference becomes invalid. • revert- The higher priority reference is immediately selected as the reference clock. This is the default. Return to privileged EXEC mode. Verify the configuration. (Optional) Save your entries in the switch startup configuration file. Enter the no network-clock-select priority or network-clock-select output to remove the selected priority. Enter the no network-clock-select mode revert or the no network-clock-select mode nonrevert to select the other mode. This example configures the BITS clock with a priority of 2 and the SyncE input port as 10 Gigabit Ethernet port 0/1 with the switching mode as nonrevertive. Switch (config)# network-clock-select priority 2 BITS Switch (config)# network-clock-select output 2 SYNCE 0 Switch (config)# network-clock-select mode nonrevert Switch (config)# end Configuring the BITS Interface Beginning in privileged EXEC mode, follow these steps to configure the BITS interface. The Ethernet Equipment Clock (EEC) mode of operation is based on the area of deployment. Step 1 Step 2 Command configure terminal network-clock-select option {option1 | option2} Purpose Enter global configuration mode. Configure the EEC option.: • option1-Select E1 as the input clock rate. • option2-Select T1 as the input clock rate OL-23400-01 Cisco ME 3800X and 3600X Switch Software Configuration Guide 6-7