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The EX9200 also raises questions on the status and future of the EX8200 core campus switch, the QFabric Interconnect data center fabric switch and even the EX6200 "Simply Connected" core switch. Juniper has not disclosed or even hinted at any meaningful upgrade plans for the EX8200, such as 40/100G Ethernet or any next-generation switch fabric cards to support high density, high speed interfaces.
Juniper is also cagey on whether there will be a next-generation QFabric and if it will incorporate custom ASICs instead of merchant silicon. That QFabric sales have been slow -- and now that the EX9200 is imminent -- might be a signal that Juniper plans to go in another direction in fabric switching, specifically in the core, or spine.
Sources have said that QFabric has essentially been placed in maintenance mode: that significant development has ceased and only incremental features and fixes are currently planned, such as the possibility of fabric extenders. They also said that Juniper determined QFabric to be too complex and cost too much to build added features onto.
Some sources labeled the EX9200 as a "gap filler," or "MX paint job" until Juniper sorts out its campus and data center switching strategy. Juniper declined to comment on these issues.
Read more about lans & wans in Network World's LANs & WANs section.