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Labs / The Fabric

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Road 7 of 11

The Fabric

How data centres and clouds build networks out of software: containers, VPCs, VRFs, labels and overlays.

2 groups · 5 labs · builds on Internetwork , Under Load , Sealed Lines

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Containers & cloud

Containers on one host, then a cloud provider's network in miniature.

  1. 01 Container networking: namespaces, veth and a bridge Wire two containers with namespaces, veth and a bridge, then NAT them out. Free
  2. 02 A cloud VPC in miniature A cloud VPC explained in miniature: public and private subnets, gateways, security groups. Pro

VRF, MPLS & VXLAN

Labels, virtual routers and networks over a fabric.

  1. 01 VRF-lite: one router, two customers who must never meet Give two customers with the same addresses their own routing table on one router. Pro
  2. 02 MPLS: forwarding by label Forward packets by label instead of address, from push to pop. Pro
  3. 03 VXLAN: one tenant network across a routed fabric Stretch one tenant subnet across racks of a routed fabric with VXLAN. Pro

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