Netgear GS716Tv2 - ProSAFE 16-Port Gigabit Managed Switch Guia Do Administrador

802.1AS

1

The IEEE 802.1AS standard specifies the protocol and procedures used to ensure that the 
QoS requirements are guaranteed for time-sensitive applications, such as audio and video. 
The IEEE 1588 Precision Time Protocol (PTP) forms the basis of the IEEE 802.1AS 
standard. PTP specifies a precise clock synchronization protocol that relies on time-stamped 
packets. The PTP protocol is applicable to distributed systems consisting of one or more 
nodes communicating over some set of communication media. The distribution of 
synchronous time information is performed in a hierarchical manner with a grandmaster clock 
at the root of the hierarchy. The grandmaster provides a common and precise time reference 
for one or more directly-attached slave devices by periodically exchanging timing information. 
In other words, all slave devices synchronize their clocks with the grandmaster clock. The 
slave devices can, in-turn, act as master devices for further hierarchical layers of slave 
devices. 

802.1AS Configuration

Use the 802.1AS Configuration page to enable the 802.1AS mode on the switch and 
configure local clock priorities. The 802.1AS feature calculates the time delay between 
devices on a given link and maintains an accurate view of a network clock.The page also 
displays various global 802.1AS information. 

To display the 802.1AS Configuration page click the Switching tab, then click 802.1AS 

 

Basic 

 802.1AS Configuration.

\