08-23-2010 08:18 PM
My customer wants to span his virtual chassis across two data centres 15 km apart. What is the maximum distance you can have between members of a virtual chassis?
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08-23-2010 08:39 PM
Few lines from the Best practices guide regarding the Maximum Distance between members in Virtual chassis..
Interconnecting Members in a Virtual Chassis Configuration
A Virtual Chassis configuration consists of between two and 10 EX 4200 series switches connected together through Virtual Chassis ports. Configurations can range from a deployment in which each switch is physically collocated, to a deployment in which switches are separated by up to 70 km and connected via fiber optics. Each switch within a Virtual Chassis configuration is a member of that Virtual Chassis configuration.
08-23-2010 08:49 PM
It looks like there are multiple answers in the guides. One says 50km while the other states 70km. A Virtual Chassis can be created over the SFP/SFP+ ports up to the maximum transmission distance catered for by the SFP or SFP+ optic.