US 8,798,079 B2 · Method and apparatus for fast passing through services for synchronous digital hierarchy device

Abstract

The present invention provides a method for fast passing through services in a SDH device including: a protection switching module compresses first pass-through time slots between adjacent protection ports to a second pass-through time slot; when an action of pass-through is triggered, the protection switching module sending the second pass-through time slot to a time slot configuration module to parse, and the time slot configuration module sending a parsing result to a time slot register to perform a process of a time slot pass-through. The present invention provides an apparatus for fast passing through services in a SDH device, including a protection switching module, a time slot configuration module and a time slot register. With the method and apparatus in the present invention, the processing time for the pass-through configuration is reduced obviously, which benefits to fast completion of protection switching and achieves fast recovery of ring protection network services.

Claims12

Dependent claims

A method for fast passing through services in a synchronous digital hierarchy device, comprising:

a protection switching module compressing plural first pass-through time slots between adjacent protection ports to one second pass-through time slot, wherein, the step of the protection switching module compressing the plural first pass-through time slots between the adjacent protection ports to the one second pass-through time slot comprises:
when compressing the plural first pass-through time slots to the one second pass-through time slot, taking an input position and an output position of a first one of the plural first pass-through time slots as an input position and an output position of the one second pass-through time slot, resetting a cross level of the one second pass-through time slot, and taking the number of the plural first pass-through time slots to-be-compressed as a cascade number of the one second pass-through time slot;
and
when an action of pass-through is triggered, the protection switching module sending the one second pass-through time slot to a time slot configuration module to parse, and the time slot configuration module sending a parsing result to a time slot register to perform a process of a time slot pass-through.

1 more element

An apparatus for fast passing through services in a synchronous digital hierarchy device, comprising:

a protection switching device, wherein the protection switching device searches first pass-through time slots between adjacent protection ports and compresses plural first pass-through time slots to one second pass-through time slot, and wherein the protection switching device, when compressing the plural first pass-through time slots to the one second pass-through time slot:
takes an input position and an output position of a first one of the plural first pass-through time slots as an input position and an output position of the one second pass-through time slot, resets a cross level of the one second pass-through time slot, and takes the number of the plural first pass-through time slots to-be-compressed as a cascade number of the one second pass-through time slot;
a time slot configuration device, wherein the time slot configuration device connects to the protection switching module and parses the one second pass-through time slot to acquire the plural first pass-through time slots;
and
a time slot register, connected to the time slot configuration module and adapted to configure the one second pass-through time slots parsed by the time slot configuration module, so as to fulfill a process of passing through services.

2 more elements

Dependencies are inferred from the claim text.

Method and apparatus for fast passing through services for synchronous digital hierarchy device

Life of this patent

Method and apparatus for fast passing through services for synchronous digital hierarchy device

Life of this patent

Abstract

Claims12