通信方法及装置
By distinguishing multicast traffic types and performing pruning in multicast VPN services, the packet loss problem caused by multicast traffic switching in MDT mode is solved, achieving stable transmission and efficient utilization of multicast traffic.
CN116319528BActive Publication Date: 2026-07-17NEW H3C TECH CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- NEW H3C TECH CO LTD
- Filing Date
- 2023-03-16
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
The existing MDT mode cannot distinguish the type of multicast traffic in multicast VPN services, resulting in packet loss during multicast tree switching.
Method used
By receiving multicast messages and obtaining their corresponding multicast group information, pruning is performed according to the established multicast tree to distinguish multicast traffic types and encapsulate different public network multicast groups, and network device branches that do not meet the forwarding conditions are removed.
Benefits of technology
It enables the deployment of multicast VPN services in both high-end and low-end routers, ensuring uninterrupted multicast traffic, especially effective in demanding zero-packet-loss scenarios, and improving bandwidth utilization.
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Figure CN116319528B_ABST
Abstract
本申请提供一种通信方法及装置，所述方法应用于路由器，所述方法包括：接收第一组播报文；若所述第一组播报文为组播数据报文，则获取与所述组播数据报文对应的第一组播组信息，所述第一组播组信息包括第一组播组地址；根据已建立的第一组播树，向对应的第二网络设备发送第二组播报文，所述第二组播报文包括所述第一组播组地址，以使得所述第二网络设备在确定第三网络设备未满足转发条件时，向所述第一组播树包括的汇集点发送剪枝请求，所述汇集点在所述第一组播树中剪除表示通过所述第二网络设备到达所述第三网络设备的分支；所述第二网络设备在确定所述第三网络设备满足所述转发条件时，向所述第三网络设备转发所述第二组播报文。
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