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Feature Description - VPN 01

NE05E and NE08E V300R003C10SPC500

This is NE05E and NE08E V300R003C10SPC500 Feature Description - VPN
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Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
Overview of IP Hard Pipe

Overview of IP Hard Pipe

Definition

IP hard pipe is an IP-network-based access technology that strictly isolates soft and hard pipes by reserving hardware on routers. The hard pipe can preempt the bandwidth resources of the soft pipe while not being affected by soft pipe congestion. The hard pipe can provide guaranteed bandwidth and low delay for the leased line services of high-value customers.

In the IP hard pipe solution, the U2000 is used to manage bandwidth resources network-wide. The physical interface bandwidth on the public network is divided and allocated to hard and soft pipes. For example, on a 10G Ethernet interface, 2 Gbit/s bandwidth is allocated to the hard pipe, and the remaining 8 Gbit/s is allocated to the soft pipe. The hard and soft pipes are isolated. The hard pipe can preempt the bandwidth resources of the soft pipe, but the soft pipe cannot preempt the bandwidth of the hard pipe.

Figure 7-1 IP hard pipe networking

Purpose

Customers that have high requirements on bandwidth, low delay, and high security prefer synchronous digital hierarchy (SDH) networks. To retain these customers, carriers must keep both IP and SDH networks, which costs a lot in maintenance. Therefore, carriers expect to migrate the customer network to the IP network to reduce maintenance costs and facilitate user management.

IP hard pipe has been developed to meet up with this expectation. It provides bandwidth guarantee and low delay on IP networks, allowing the IP networks to provide access services with SDH service quality. It also provides service-specific granular OAM and SLA monitoring, which will accelerate the migration of SDH networks to IP leased line networks.

Benefits

IP hard pipe offers the following benefits to carriers:
  • Deployment of high-quality leased lines for VIP customers on newly deployed or existing routers, reducing SDH network construction and costs for maintaining both SDH and IP networks

  • Rapid service protection, ensuring high-reliability service quality

  • Granular service quality measurement using IP FPM, providing flexible and effective maintenance and management means to leased lines of VIP customers

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Updated: 2019-01-14

Document ID: EDOC1100058940

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