Multipoint Seamless Bi-Directional Forwarding Detection

Multipoint seamless Bi-directional Forwarding Detection (BFD) may be provided. First, a discriminator and data identifying a headend device may be received by a node from the headend device. The discriminator may be received over a point-to-multipoint pseudowire between the node and the headend devi...

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Bibliographische Detailangaben
Hauptverfasser:	Nainar, Nagendra Kumar, Pignataro, Carlos M, Sowinski, Pawel Piotr, Govindan, Vengada Prasad
Format:	Patent
Sprache:	eng
Schlagworte:	ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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Beschreibung
Zusammenfassung:	Multipoint seamless Bi-directional Forwarding Detection (BFD) may be provided. First, a discriminator and data identifying a headend device may be received by a node from the headend device. The discriminator may be received over a point-to-multipoint pseudowire between the node and the headend device. Next, the node may start a reflector session in response to receiving the discriminator. The reflector session may correspond to the discriminator and the data identifying the headend device. The reflector session may then receive a control packet from the headend device and determine that the control packet includes the discriminator. The control packet may be received over the point-to-multipoint pseudowire. Next, the reflector session on the node may send a reply packet to the headend device in response to determining that the control packet includes the discriminator. The reply packet may be sent over a unicast pseudowire between the node and the headend device.