NETWORK SYSTEM AND RELAY DEVICE

• Main Authors: MURAKAMI TOSHIHIKO, KUWATA HITOSHI
• Format: Patent
• Language: English; Japanese
• Published: 31.08.2017
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION

PROBLEM TO BE SOLVED: To reduce a load in multicast between VTEPs in a VXLAN area, in a wide area network to which a VXLAN is applied.SOLUTION: A network system composed of a VXLAN area, connected to a vEPC virtual network 44, in which encapsulation is performed using a VXLAN and a PBB area in which encapsulation is performed using PBB includes: an edge router 31c that belongs to the VXLAN area and connects with an edge switch in the PBB area; and the edge switch 21c that belongs to the PBB area and connects with the edge router 31c. The edge router 31c performs conversion between a VNID of data on which encapsulation is performed using the VXLAN and an intermediate CVID of non-encapsulated data to be transmitted/received to/from the edge switch 21c. The edge switch 21c performs conversion between an ISID of data on which encapsulation is performed using the PBB and the intermediate CVID.SELECTED DRAWING: Figure 1 【課題】ＶＸＬＡＮを適用した広域ネットワークにおいて、ＶＸＬＡＮ領域でのＶＴＥＰ間のマルチキャストの負荷を低減する。【解決手段】ｖＥＰＣ仮想ネットワーク４４と接続され、ＶＸＬＡＮによりカプセル化が行われるＶＸＬＡＮ領域と、ＰＢＢによりカプセル化が行われるＰＢＢ領域とからなり、ＶＸＬＡＮ領域に属してＰＢＢ領域のエッジスイッチと接続するエッジルーター３１ｃと、ＰＢＢ領域に属してエッジルーター３１ｃと接続するエッジスイッチ２１ｃとを有し、エッジルーター３１ｃは、ＶＸＬＡＮのカプセル化がされたデータのＶＮＩＤと、エッジスイッチ２１ｃとの間で授受される非カプセル化データの中間ＣＶＩＤとの間で変換を行い、エッジスイッチ２１ｃは、ＰＢＢのカプセル化がされたデータのＩＳＩＤと、中間ＣＶＩＤとの間で変換を行う。【選択図】図１