The performance of synchronous digital network on the network can work normally is very important, the introduction of SDH network on network synchronization has put forward higher requirements. When the network working in normal mode, each network element synchronous to a reference clock, between network nodes and clock exists only phase difference does not appear the frequency difference, and therefore will only appear accidental pointer justification event (network synchronization, pointer adjustment not very often). When a network element node lost synchronous reference clock and enters a hold mode or modes of free oscillations, the element local node clock and clock network will the frequency difference, and lead to the continuation pointer adjustment, affect the business of network normal transmission.


More blog:
[url=http://www.thunder-link.com/support/U2000V100R006C02SPC301-Installation-Introduction_Part%201.html]U2000V100R006C02SPC301 Installation Introduction_Part 1[/url]