Basic Concepts VST

Virtual Switching Domain

The virtual switching domain is formed by one or multiple member devices. The domain number configurations of the member devices in one virtual switching domain should be the same. The domain number uniquely determines one virtual switching domain. When the MAC address of the virtual switching domain uses the virtual MAC address mode to get, the number of the virtual switching domain uniquely decides the MAC address, so in one LAN, the domain numbers between multiple stacking systems cannot be the same.

Virtual Switching Member Device

Each physical device in the virtual switching domain is also called virtual switching member device. In one stacking domain, the member number uniquely determines one member device.

VSL Interface and Member Ports

Bind multiple physical ports with the stacking capability to form one virtual switching link channel (VSL-Channel). The VSL-Channel is the logical link channel of exchanging the protocol packets and forwarding service data between member devices. The physical port is called virtual switching link member port.

The member devices are added to one virtual switching domain and they are interconnected via the VSL-Channel, forming one virtual device.

LMP

LMP (Link Manage Protocol) is used to manage the VSL channel and the member ports.

RRP

RRP (Role Resolution Protocol) is used to elect the member device role in the stacking system.

TDP

TDP (Topology Discovery Protocol) is used to advertise the member device information in the stacking system, ensuring the consistency of all member device information in the stacking system.