Service retention method and device when attribute being switched
A dual-homing and service technology, applied in the communication field, can solve problems such as service interruption, lower user satisfaction, and inability to realize smooth service switching, and achieve the effect of resource hanging
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[0042] see figure 1 , figure 1 It is a schematic diagram of networking of a dual-homing system according to an embodiment of the present invention. In a dual-homing system, two softswitches are set, namely, a master-home softswitch and a slave-home softswitch. Between the two softswitches Status maintenance and negotiation can be performed, as well as non-real-time data backup or data backup through maintenance commands.
[0043] The two softswitches are similar entities and provide the same functions; otherwise, they will not support the dual-homing function due to inconsistent functions. Each softswitch covers and controls a certain area, such as: metropolitan area 1 and metro area 2. In this embodiment, the primary home softswitch is the primary home softswitch of metropolitan area 1, and the secondary home softswitch of metropolitan area 2; similarly, the secondary home softswitch is the primary home softswitch of metropolitan area 2 , which is the slave softswitch of m...
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