A method for implementing routing and forwarding table management of pon equipment

A routing table and forwarding table technology, applied in digital transmission systems, data exchange networks, electrical components, etc., can solve the problem of whether the access terminal host is reachable without more consideration, avoid unnecessary forwarding, and improve forwarding accuracy. performance, improve refresh efficiency

Active Publication Date: 2019-01-15
FENGHUO COMM SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is that in the PON OLT equipment networking scenario, most of the conventional routing and forwarding table management methods only consider the router application, without more consideration of whether the access terminal host is reachable, and the change of the access host Issues such as event processing efficiency

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  • A method for implementing routing and forwarding table management of pon equipment
  • A method for implementing routing and forwarding table management of pon equipment
  • A method for implementing routing and forwarding table management of pon equipment

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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 invention discloses a method for implementing routing and forwarding table management of PON equipment, which includes: first sending the generated network segment routing table and host routing table to the routing management module; Whether each next hop in the hop table is reachable, and only write the reachable next hop into the network segment routing forwarding table of the data forwarding plane; determine whether the next hop is reachable based on: in the host routing table Finding the host IP consistent with the next hop IP means that the next hop is reachable, otherwise, it is unreachable; the routing management module updates the host routing table in real time according to the ARP message, and synchronously updates the network segment routing forwarding table in the data forwarding plane Next hop table and host routing forwarding table. The present invention improves forwarding accuracy and avoids unnecessary forwarding by only writing the reachable next hop into the data forwarding table of the data forwarding plane, thereby improving 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) is the mainstream technology for transforming traditional access networks. Among them, PON OLT 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 device, which can reach 10,000 households or more. Traditional PON OLT (optical line terminal, optical line terminal) equipment is defined as Layer 2 forwarding equipment. To transmit u...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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