PATH CONSTRUCTION METHOD AND RELATED DEVICE

Disclosed are a path construction method and a related device. One of the methods comprises: a second PE node issuing a first VPN route to a first PE node by means of an MP-BGP signalling channel, so that the first PE node determines, according to a first transmission path descriptor (TPD) carnied i...

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Bibliographische Detailangaben
Hauptverfasser:	ZHAO, Detao, PENG, Shaofu
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
Online-Zugang:	Volltext bestellen
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Beschreibung
Zusammenfassung:	Disclosed are a path construction method and a related device. One of the methods comprises: a second PE node issuing a first VPN route to a first PE node by means of an MP-BGP signalling channel, so that the first PE node determines, according to a first transmission path descriptor (TPD) carnied in the received first VPN route, a label forwarding path reaching a first VPN Prefix, wherein the first TPD is used for identifying a label forwarding path for a first VPN message to reach a BGP next hop. Therefore, a bottom-layer transmission path satisfying a service requirement can be selected for a VPN service.