Method, device and network equipment for processing label transmitting path fault as well as network equipment
A label switching path and failure technology, applied in the computer field, can solve the problem that the main label switching path cannot be restored in time, achieve strong versatility, improve accuracy, and achieve simple effects
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Embodiment 1
[0039] The label switching path failure processing method provided in the first embodiment of the present invention is illustrated by taking the bidirectional forwarding detection BFD as an example, and the processing process after the failure is detected in other detection methods is similar. The method flow is as Figure 5 As shown, the execution steps are as follows:
[0040] Step S101: The BFD session is in a normal operating state.
[0041] That is, after the BFD session establishment process is completed, the ingress device and the egress device (which can be collectively referred to as network devices) enter the normal state of sending bidirectional forwarding detection packets to detect the LSP link failure. For example, equipment such as ingress LSR and egress LSR.
[0042] Step S102: It is detected that the LSP has a link failure.
[0043] When a link between two devices on the LSP fails, BFD can detect the failure.
[0044] Step S103: Change the BFD session state from the s...
Embodiment 2
[0064] The label switching path failure processing method provided in the second embodiment of the present invention realizes message forwarding based on the setting of the forwarding entry status in the first embodiment, and the process is as follows Image 6 As shown, the execution steps are as follows:
[0065] Step S201: Obtain the message to be forwarded.
[0066] The network device can receive messages that need to be forwarded sent by other devices or can also obtain messages that need to be forwarded to other devices that it has constructed.
[0067] Step S202: searching for a forwarding message in an active state or inactive state matching the message to be forwarded. Specifically, according to the different types of packets that need to be forwarded, the matching conditions are also different, including:
[0068] When a data message needs to be forwarded, an active forwarding entry that matches the message sending rule of the data message is found to forward the data message...
Embodiment 3
[0074] The method for processing label switching path failures provided in the third embodiment of the present invention describes in detail a specific implementation scheme for packet forwarding based on the setting of the forwarding entry status in the first embodiment, and the process is as follows Figure 7 As shown, the execution steps are as follows:
[0075] Step S301: Obtain the message to be forwarded.
[0076] Taking an MPLS network as an example, a network device can receive messages that need to be forwarded sent by other devices or can also obtain messages that need to be forwarded to other devices, including data messages and detection messages.
[0077] Step S302: Check whether there is a matching forwarding entry in the active state.
[0078] Among them, the forwarding entry adds an inactive state, and the data message cannot be forwarded through the inactive forwarding entry, while the detection message can.
[0079] Therefore, according to the message sending rules, it...
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