Realization method of passive optical network (PON)device route forwarding table management

A forwarding table and routing table technology, applied in digital transmission systems, electrical components, transmission systems, etc., can solve the problem of not having to consider whether the access terminal host is reachable, so as to avoid unnecessary forwarding, improve refresh efficiency, Guaranteed a highly synchronized effect

Active Publication Date: 2016-06-22
FENGHUO COMM SCI & TECH CO LTD
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The technical problem to be solved by the present invention is that in the PONOLT equipment networking scenario, most of the conventional routing and forwarding table management methods on

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  • Realization method of passive optical network (PON)device route forwarding table management
  • Realization method of passive optical network (PON)device route forwarding table management
  • Realization method of passive optical network (PON)device route forwarding table management

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Embodiment Construction

[0046] The present invention utilizes the host routing table to record the host information table directly connected to the PON equipment, and in fact it is the feature of the three-layer forwarding next-hop exit of the PON equipment, as a function of judging whether each next hop in the network segment routing table is The basis of reachability, that is, whether each entry in the next hop table is reachable is determined by the host routing table. When the next hop IP does not find a consistent host IP in the host routing table, it means that the next hop The host corresponding to the IP is not directly connected to the PON device, and the next-hop egress corresponding to the next-hop IP is unreachable. According to the above principles, the present invention ensures the synchronous refresh of the routing table of the network segment and the routing table of the host, and enables only the next hop that is reachable to be written into the data forwarding plane, avoiding unneces...

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Abstract

The present invention discloses a realization method of a PON device route forwarding table management. The method comprises the steps of firstly issuing the generated network segment routing table and host routing table to a route management module; using the route management module to determine whether each skip in a next skip list of the network segment routing table is reachable according to the host routing table, and only writing the reachable next skip in a network segment route forwarding table of a data forwarding plane; if a host IP consistent with the IP of the next skip can be found out in the host routing table, determining the next skip is reachable, otherwise, determining the next skip is not reachable; using the route management module to update the host routing table real-timely according an APP message, and synchronously updating the next skip list of the network segment route forwarding table in the data forwarding plane and the host route forwarding table. According to the present invention, by only writing the reachable next skip in a data forwarding table of the data forwarding plane, the forwarding accuracy is improved, and the unnecessary forwarding is avoided, thereby improving the forwarding reliability and refreshing efficiency of the forwarding table.

Description

technical field [0001] The present invention relates to PON (Passive Optical Network, Passive Optical Network) access network equipment, in particular to a method for realizing routing and forwarding table management of PON equipment. Background technique [0002] In the communication network, there are a large number of access network devices, and most of the traditional access networks are connected by metal wires. FTTH (Fiber To The Home, fiber to the home) is the mainstream technology for the transformation of traditional access networks. Among them, PONOLT is the access aggregation device of FTTH, which is used to aggregate and transmit the traffic from users to the backbone network. [0003] Therefore, the PON access network equipment is characterized by a large number of access terminals of a single aggregation equipment, which can reach 10,000 households or more. Traditional PONOLT (optical line terminal) equipment is defined as Layer 2 forwarding equipment, which tr...

Claims

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Application Information

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IPC IPC(8): H04L12/733H04L12/741H04L12/751H04L45/122H04L45/02H04L45/74
CPCH04L45/02H04L45/20H04L45/54H04L45/745
Inventor 黄勇强亮
Owner FENGHUO COMM SCI & TECH CO LTD
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