VxLAN is becoming de facto standard for the Data Center networking envitoments. In current and future implementations, VxLAN provides an overlay over a Data Center Spine-Leaf networks. It is decoupled from the Underlay which is static and robust. In the early implementations of Data Center Networks, there was no such a thing that applications are …
VXLAN allows us to create layer 2 networks over layer 3 infrastructure. The VXLAN base use case is to connect two or more layer three network domains and make them look like a common layer two domain. In the Data center environment this allows virtual machines on different networks to communicate as if they were …
VXLAN allows us to create a logical topologies in the Data Center for our virtual machines. With VxLAN we are able to create a layer 2 network on top of layer 3 infrastructure. In the Data Centers VMs needs to be deployed in a specific segment of the network. These VMs can be moved from …
EVPN is a standards-based BGP control plane to advertise MAC addresses, MAC and IP bindings and IP Prefixes. It can be used for both layer 2 services including p2p services and p2mp services and layer 3 services. First standards for EVPN defined to usage over MPLS (including SR-MPLS) data plane but it is also possible …
MLAG can be used at various places in the network to eliminate bottlenecks and provide resiliency, including the spine layer and leaf layer. But the most common use case for M-LAG is using this feature at the Leaf layer. At the leaf of the network, servers with multiple interfaces connect to the switches using NIC …
In the new generation data center networking design, we have “clos” topologies which is based on network–based spine-and-leaf architecture. CLOS topology basically have 2 tier, Spine (Core) and Leaf (Access). Every leaf switch is connected to all Spine switches. The spine layer is the backbone of the network and is responsible for interconnecting all leaf …
With the rapid evolution of SDN, industry have started to separate networks as Underlay and Overlay. An overlay is a virtual network that is built on top of an underlying network infrastructure, underlay. It is the underlying network responsibility to deliver packets across networks. Here are summary of Underlay and its characteristics; – Physical infrastructure which …
A new data center design called the Clos network–based spine-and-leaf architecture was developed to overcome these limitations. This architecture has been proven to deliver the high-bandwidth, low-latency, non-blocked links etc. CLOS topology basically have 2 tier, Spine (Core) and Leaf (Access). Every leaf switch is connected to all Spine switches. The spine layer is the …