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2025-03-31 Update From: SLTechnology News&Howtos shulou NAV: SLTechnology News&Howtos > Network Security >
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A company has two core computer rooms in a city for disaster recovery and backup. The two rooms are interconnected with bare optical fiber in the same city, and they rent MPLS L3 × × × with operators respectively. In fact, they are connected to different PE (double PE) respectively, but they all belong to AS4809. The branch office also rents MPLS L3 × × × to access AS4809.
There is an EBGP connection between data center 1 and data center 2, and both data centers announce routes to AS4809. The branch structure receives the routing table of data center 1 and 2, and the business process:
Shenzhen visits computer room 1RU 65522 à 4809 à 64560
Shenzhen visits computer room 2RU 65522 à 4809 à 64554
If the link between core data center 1 and the corresponding PE is disconnected, core computer room 2 simultaneously announces to AS4809 the routing table and business process of the AS of server room 2:
Shenzhen visits computer room 1VU 65522 à 4809 à 64554 à 64560
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