Figure 3-14 SQA association
3.7.3 VSC
VSC( Virtual Switch Cluster) system can virtualize multiple independent devices into one
device to dynamically add or delete members. These VSC members that linked by VSC
port can select one main device by a certain selection mechanism. And others work as
forwarding devices. It’s like one device is expanded to support more interface cards,
more interfaces, more services, provide equipment-level redundancy backup, and
improve the reliability of the equipment and network.
VSC can make a simple network without complicated and slow STP or VRRP. Multiple
devices only need one configuration to make the network more reliable to support
Multi-chassis link aggregation, to implement protocol-level and equipment-level cross-
chassis hot standby, and to make the network more effective. Multiple devices constitute
VSC system to effectively improve the system capacity, to implement load balancing, and
to fully utilize network bandwidth.
Figure 3-15 VSC system logic connection diagram
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