No relevant resource is found in the selected language.

This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies. Read our privacy policy>Search


To have a better experience, please upgrade your IE browser.


NE40E-M2 V800R010C10SPC500 Feature Description - LAN Access and MAN Access 01

This is NE40E-M2 V800R010C10SPC500 Feature Description - LAN Access and MAN Access
Rate and give feedback:
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).
Application of Eth-Trunk

Application of Eth-Trunk

Service Overview

As the volume of services deployed on networks increases, the bandwidth provided by a single P2P physical link working in full-duplex mode cannot meet the requirements of service traffic.

To increase bandwidth, existing interface boards can be replaced with interface boards of higher bandwidth capacity. However, this would waste existing device resources and increase upgrade expenditure. If more links are used to interconnect devices, each Layer 3 interface must be configured with an IP address, wasting IP addresses.

To increase bandwidth without replacing the existing interface boards or wasting IP address resources, bundle physical interfaces into a logical interface using Eth-Trunk to provide higher bandwidth.

Networking Description

As shown in Figure 3-11, traffic of different services is sent to the core network through the user-end provider edge (UPE) and provider edge-access aggregation gateway (PE-AGG). Different services are assigned different priorities. To ensure the bandwidth and reliability of the link between the UPE and the PE-AGG, a link aggregation group, Eth-Trunk 1, is established.

Figure 3-11 Networking diagram of the Eth-Trunk

Feature Deployment

In Figure 3-11, Eth-Trunk interfaces are created on the UPE and PE-AGG, and the physical interfaces that directly connect the UPE and PE-AGG are added to the Eth-Trunk interfaces. Eth-Trunk offers the following benefits:
  • Improved link bandwidth. The maximum bandwidth of the Eth-Trunk link is three times that of each physical link.
  • Improved link reliability. If one physical link fails, traffic is switched to another physical link of the Eth-Trunk link.
  • Network congestion prevention. Traffic between the UPE and PE-AGG is load-balanced on the three physical links of the Eth-Trunk link.
  • Prompt transmission of high-priority packets, with quality of service (QoS) policies applied to Eth-Trunk interfaces.
You can select the operation mode for the Eth-Trunk as follows:
  • If devices at both ends of the Eth-Trunk link support the Link Aggregation Control Protocol (LACP), Eth-Trunk interfaces in static LACP mode are recommended.

  • If the device at either end of the Eth-Trunk does not support LACP, Eth-Trunk interfaces in manual load balancing mode are recommended.

Updated: 2019-01-02

Document ID: EDOC1100058405

Views: 18327

Downloads: 26

Average rating:
This Document Applies to these Products
Related Version
Related Documents
Previous Next