Supported Platforms
Related Documentation
Understanding Virtual Chassis Port Link Aggregation in an EX8200 Virtual Chassis
In an EX8200 Virtual Chassis, physical 10–GigabitEthernet ports that are configured as Virtual Chassis port (VCP) links that connect member switches together automatically form a logical point-to-point link, known as a link aggregation group (LAG) or bundle. A LAG provides more bandwidth than a single Ethernet link can provide. Additionally, link aggregation provides network redundancy by load-balancing traffic across all available links. If one link fails, the system automatically load-balances traffic across all remaining links.
VCP links between member switches in the Virtual Chassis are automatically connected into a single LAG; no user configuration is required to configure the LAG. You can configure up to 12 Ethernet ports as VCPs to form a LAG between two member switches in a Virtual Chassis.
The 12 Ethernet links as VCP LAG restriction is between member switches. Each member switch in an EX8200 Virtual Chassis can have a VCP LAG to every other member switch in the Virtual Chassis. For instance, in a Virtual Chassis with four member switches, the switch configured as member Id 0 can have one VCP LAG to the switch configured as member id 1, another VCP LAG to the switch configured as member id 2, and another VCP LAG to the switch configured as member id 3. Each VCP LAG must have no more then 12 links. Only one VCP LAG is permitted between the same member switches in the Virtual Chassis.
LAGs are also useful for connecting the network ports of directly-connected devices into an EX8200 Virtual Chassis. See Understanding Link Aggregation into an EX8200 Virtual Chassis.
