Deployment Guide

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ScaleIO/VxFlex OS IP Fabric Best Practice and Deployment Guide with OS10EE | version 1.0
Loopback IP addressing
Each leaf connects to each spine, but note that the spines do not connect to one another. In a Leaf-Spine,
topology there is no requirement for the spines to have any interconnectivity. Given any single-link failure
scenario, all leaf switches retain connectivity to one another.
Table 2 shows loopback addressing and BGP ASN numbering associations. Building BGP neighbor
relationships require this information along with the point-to-point information in Table 3 the next section.
Loopback interfaces and ASN associations
Switch Name
Loopback
BGP ASN
Spine 1
10.0.1.1/32
64601
Spine 2
10.0.1.2/32
64602
Leaf 1A
10.0.2.1/32
64701
Leaf 1B
10.0.2.2/32
64702
3.2.4 Point-to-point interfaces
Below Table 3 lists physical connection details from each Leaf-Spine switch. The table presents the switch
name, source interface, source IP network and network IP addresses. The IP scheme below easily extends to
account for additional Leaf-Spine switches.
All addresses come from the same base IP prefix, 192.168.0.0/16 with the third octet representing the spine
number. For instance, 192.168.1.0/31 is a two-host subnet that ties to Spine 1 while 192.168.2.0/31 ties to
Spine 2.