Cluster router routing control method and device, and cluster router
A control method and router technology, applied in the field of communication, can solve problems such as multicast failure of control packets of cluster routers, loss of multicast entries, complex routing, etc., so as to avoid loss of multicast entries and unicast temporary loop road effect
Active Publication Date: 2017-06-20
NEW H3C TECH CO LTD
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However, this will make the routing of the internal control packets of the cluster router very complicated. When an LCC inside the cluster router fails and loses connection with other chassis, the multicast entries of other chassis that are multicast sources may be lost. As a result, the multicast failure of the control packet of the cluster router
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[0039] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0040] In order to improve the reliability of the system, each frame of the cluster router is equipped with two MPUs, and the two MPUs are mutually backed up. The control channel of the cluster router also improves reliability by adding redundant physical links, and each MPU in the chassis has at least two ports connected to the outside. In a cluster connected through a central chassis, one of the two ports of each MPU is connected to the CCU, and the other is...
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The invention provides a cluster router routing control method and device, and a cluster router. The method is applied to a cluster router including an FCC and at least two LCCs, and includes that when the first MPU of the first LCC of the cluster router receives the route unreachable message of the second LCC sent by the CCU in the FCC, if the first MPU determines the only unicast route reaching the second LCC via a first port connecting the first MPC with the second MPU of the first LCC except the optimal unicast route, the first MPU deletes the optimal unicast route from the first MPU to the second LCC and starts a delay switching timer, the outlet port of the optimal unicast route is a second port connecting the first MPC with the CCU; when the delay switching timer is time out and the first MPU doesn't receive the route unreachable message of the second LCC at the first port, the first MPU modifies the outlet port of the optimal unicast route to the first port.
Description
technical field [0001] The present invention relates to the field of communication technology, in particular to a cluster router routing control method, device and cluster router. Background technique [0002] With the continuous development of the Internet, routers, as the core equipment of the network, are also facing new challenges. Stand-alone routers can no longer meet the capacity requirements of data exchange. A cluster router is a system composed of multiple stand-alone routers directly connected to each other, and the main processing units (Main Process Units, MPUs) of the multiple stand-alone routers are connected to each other through optical fibers to realize mutual communication. [0003] Like a stand-alone router, a cluster router is also divided into two parts: the control screen and the data plane. The control plane is responsible for managing and controlling devices, and the data plane is responsible for forwarding user data. The two use completely independe...
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IPC IPC(8): H04L12/18H04L12/26H04L12/725
CPCH04L12/1845H04L43/08H04L43/0823H04L45/306
Inventor 王剑鸣
Owner NEW H3C TECH CO LTD