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S9300, S9300E, and S9300X V200R012C00 Configuration Guide - Ethernet Switching

This document describes the configuration of Ethernet services, including configuring MAC address table, link aggregation, VLANs, VLAN aggregation, MUX VLAN, VLAN termination, Voice VLAN, VLAN mapping, QinQ, GVRP, STP/RSTP/MSTP, VBST, SEP, RRPP, ERPS, LBDT, HVRP, and Layer 2 protocol transparent transmission.
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Switches Are Directly Connected

Switches Are Directly Connected

As shown in Figure 3-13, traffic of services with different priorities is sent to the core network through the UPE and PE-AGG. To ensure the bandwidth and reliability of the link between the UPE and PE-AGG, a LAG, Eth-Trunk 1, is established.

Figure 3-13  Link aggregation networking

You can determine the working mode for the Eth-Trunk according to the following situations:

  • If devices at both ends of the Eth-Trunk support LACP, the LACP mode is recommended.

  • If the device at either end of the Eth-Trunk does not support LACP, you must use the manual mode.

QoS can be implemented on an Eth-Trunk as a common interface. At both ends (UPE and PE-AGG) of Eth-Trunk 1, traffic shaping, congestion management, and congestion avoidance can be performed for outgoing traffic, ensuring that packets of high priorities are sent in a timely manner.

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Updated: 2019-01-18

Document ID: EDOC1100038290

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