TRILL is just one example of how networking pros have gone data center network fabric crazy. Data center fabrics aim to enable better management of network traffic in a virtual environment, allowing engineers to manage multiple physical and virtual network components as one. So who wouldn't love a fabric?
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OpenFlow developer and Nicira co-founder, Martin Casado isn't necessarily a fan. In his Fast Packet blog “With edge software overlays, is network fabric just for raw bandwidth?” Casado admits that network fabrics free up bandwidth, but says “in a world of edge software overlays, it's possible that network fabrics don't necessarily need to be so feature rich.” Instead, he says network fabrics should offer “dumb -- but unified – bandwidth,” in addition to support of packet replication hardware, multi-cast management and QoS to avoid congestion. Other features like VLAN isolation and support for mobility should be left to edge software.
Read more about what Casado and co-writer Andrew Lambeth have to say about network fabric.
Next up, will OpenFlow controllers really change the way we run networking?