US 2006/0133266 A1 · Method of constituting and protecting control channel in IP-based network and status transition method therefor

Abstract

Provided is a method of constituting a highly reliable control network in an IP-based network environment and, more particularly, a protocol technology for automatic control channel constitution and protection. The method includes functions of protection group (PG)-1/3 control channel identification, detour control channel identification, an automatic switchover, a forced switchover, a control channel unavailability notice, a protection/switchover properties information inquiry, an Hello, a protocol error notice, and re-transmission. This invention provides a protection mechanism of control channels without additional overhead and with higher level of resilience capability to improve shortcomings of the LMP and MPLS based schemes.

Claims18

Dependent claims

A method of constituting and protecting a control channel in an IP-based network, the method comprising:

(a) allowing two adjacent nodes to configure the communication environment of PG-1 and PG-3 control channels, and to identify active and standby control channels between two adjacent nodes;
(b) to configure a more powerful control network after the identification of PG-1 and PG-3 control channels, establishing a detour route using PG-1 or PG-3 control channels over one or more transit nodes between adjacent nodes;
(c) when a failure on the ACC in use occurs, a switchover to a control channel that first responds to the switchover request.

Dependencies are inferred from the claim text.

Method of constituting and protecting control channel in IP-based network and status transition method therefor

Life of this patent

Method of constituting and protecting control channel in IP-based network and status transition method therefor

Life of this patent

Abstract

Claims18