Section 1: Pure L3 Data Center
In this section, we will design a spine-leaf IPv6 fabric with unnumbered BGP, ECMP, BFD.
Discuss the protocols and topology of the underlying network to build a .
- How the Data Center has evolved, and how to make it scale: Discuss Pure Layer 3 Underlay and how BFD is used for sub-second link failover to meet high availability SLAs
- IPv6 is used for easy management of IP addresses. Using Neighbor Discovery Protocol and Link-Local Addresses, we can achieve Route Advertisement without any configuration.
- Spine and Leaf Topology is used to avoid the overhead of Layer 2 networking.
- Border Gateway Protocol (BGP) is used for load balancing and advertising routes to all servers, routers, and switches. In terms of scalability, BGP is currently handling ~700,000 routes of the public internet. BGP can use link-local addresses to exchange information about IP addresses configured in a data center.
- BIG TCP: Extends TCP's window-scaling and congestion control, improving performance and throughput as packets enter the networking stack.
- BBRv3 is used for
- Stateless Address Autoconfiguration is used for
- Case Study - Nokia Kubernetes Service