Packet transport network (PTN) protection method and device

A technology of packet transmission network and protection device, applied in the field of communication, can solve problems such as technical solutions for protection of UNI side and PE nodes without PTN network, and achieve the effect of improving network security and stability
CN102468977AInactive Publication Date: 2012-05-23ZTE CORP
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
ZTE CORP
Publication Date
2012-05-23
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a packet transport network (PTN) protection method and device. The PTN protection method comprises the following steps: detecting that whether a main pseudo-line has a fault or not through the operation management and the maintenance information of the main pseudo-line which bears a service currently, and switching the service to a standby pseudo-line from the main pseudo-line if the main pseudo-line has a fault. According to the PTN protection method and device, the problem that the UNI (user network interface) side and the PE (provide edge) node of the PTN can not be protected in the prior art is solved, thus the service of the PTN is protected, and the safety and the stability of the PTN are improved.
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Description

technical field

[0001] The present invention relates to the field of communications, in particular to a method and device for protecting a packet transport network (Packet Transport Network, PTN). Background technique

[0002] With the wide application of PTN networks, the reliability requirements for customer services are getting higher and higher, and major operators are paying more and more attention to protection requirements. At present, the protections that are widely used in PTN networks are mainly the 1+1 and 1:1 linear protection of the TMP (T-MPLS Path) path layer, and the ring network protection (wrapping and steering) of the TMS (T-MPLS Section) layer. Protect). These protections are mainly for the protection of the NNI (Network Node Interface, network node interface) side in the PTN network, without the protection of the UNI (User Network Interface, user network interface) side and PE (Provider Edge, operator edge equipment) Node protection. As operators have...

Claims

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