Cisco ME 3800X User Manual

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Cisco ME 3800X and ME 3600X Switch Command Reference
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Chapter 2 Cisco ME 3800X and ME 3600X Switch Cisco IOS Commands
network-clock-select
network-clock-select
To configure the Synchronous Ethernet (SyncE) input clock and priority, use the network-clock-select
command in global configuration mode. To remove the priority, use the no form of this command.
network-clock-select priority [BITS | SYNCE port-number]
no network-clock-select priority
Syntax Description
Defaults The SyncE network clock is not configured.
Command Modes Global configuration
Command History
Usage Guidelines During normal operation, the reference clock is selected based on an algorithm that uses the priority
rankings that you assign to the input clocks by using the network-clock-select priority priority global
configuration command.
The reference clock source can be the BITS input or a PHY-recovered clock from one of the uplink ports.
The ME 3800X and ME 3600X switch supports a BITS port through an RJ45 connector.
Examples This example shows how to set the priority of a device to 2 and configure BITS as the clock input source.:
Switch(config)# network-clock-select 2 BITS
Switch(config)# exit
Related Commands
priority Sets the priority of the device as a network clock. The range is from 1 to 15,
with 1 being the highest priority. Unused network clocks are given a priority
value of 0.
BITS Selects the Building Integrated Timing Supply (BITS) clock input.
SYNCE port-number Selects the clock input uplink port. For port number:
• Enter 0 for input from TenGigabitEthernet 0/1.
• Enter 1 for input from TenGigabitEthernet 0/2.
Release Modification
12.2(52)EY This command was introduced.
Command Description
show network-clocks Displays network clock configuration.
controller BITS commands Configures the BITS clock controller characteristics.

Cisco ME 3800X Specifications

General

Brand	Cisco
Model	ME 3800X
Category	Switch
Language	English