Patent ID: 8532114
Filing Date: 2013-09-10
Classification: H04L

Abstract:
1. A cluster router, comprising: at least one control apparatus and at least two forwarding apparatuses, wherein: the at least two forwarding apparatuses comprise a first forwarding apparatus and a second forwarding apparatus; the control apparatus is connected to the at least two forwarding apparatuses, and the at least two forwarding apparatuses are connected with each other; the control apparatus is configured to generate and distribute a routing table of each forwarding apparatus and a packet processing information conversion table of each forwarding apparatus, and the packet processing information conversion table comprises a corresponding relationship between local frame packet processing information and cluster packet processing information; and the first forwarding apparatus is configured to: receive the routing table of the first forwarding apparatus and the packet processing information conversion table of the first forwarding apparatus comprising a corresponding relationship between local frame packet processing information of the first forwarding apparatus and cluster packet processing information of the first forwarding apparatus, which are delivered by the control apparatus; according to the packet processing information conversion table of the first forwarding apparatus, convert the local frame packet processing information of the first forwarding apparatus into the cluster packet processing information of the first forwarding apparatus; carry the cluster packet processing information of the first forwarding apparatus in a first data packet and send the first data packet to the second forwarding apparatus; or according to the packet processing information conversion table, convert the cluster packet processing information of the first forwarding apparatus into the local frame packet processing information of the first forwarding apparatus; carry the local frame packet processing information of the first forwarding apparatus in a second data packet and transfer the second data packet inside the forwarding apparatus; the first forwarding apparatus comprises a cascading card module and a switching module, the switching module being connected to the cascading card module; the cascading card module is configured to connect the first forwarding apparatus with the second forwarding apparatus through a cascading line, to receive and store the packet processing information conversion table of the first forwarding apparatus, according to the packet processing information conversion table of the first forwarding apparatus, to implement mutual conversion between the local frame packet processing information of the first forwarding apparatus and the cluster packet processing information of the first forwarding apparatus, and to implement data exchange with the cascading line; the switching module is configured to receive and store the routing table of the first forwarding apparatus and the local frame packet processing information of the first forwarding apparatus converted by the cascading card module and, according to the routing table and the local frame packet processing information of the first forwarding apparatus, to perform data exchange between the cascading card modules; the first forwarding apparatus further comprises a line card module connected to the switching module; the line card module is configured to receive an outside data packet from outside of the cluster router and to process the received outside data packet to generate the local frame packet processing information of the first forwarding apparatus; and the switching module is further configured to execute, according to the routing table and the local frame packet processing information of the first forwarding apparatus, data exchange between the line card module and one or more other line card modules or between the line card module and the cascading card module.