Users Guide

29 Dell EMC Networking with Isilon Front-End Deployment and Best Practices Guide | version 1.0
S4048-ON Leaf 1
S4048-ON Leaf 2
interface ethernet1/1/49
description “Spine 1”
no shutdown
no switchport
mtu 9216
ip address 192.168.1.1/31
interface ethernet1/1/50
description “Spine 2”
no shutdown
no switchport
mtu 9216
ip address 192.168.2.1/31
interface loopback0
description “Router ID”
no shutdown
ip address 10.0.2.1/32
interface ethernet1/1/49
description “Spine 1”
no shutdown
no switchport
mtu 9216
ip address 192.168.1.3/31
interface ethernet1/1/50
description “Spine 2”
no shutdown
no switchport
mtu 9216
ip address 192.168.2.3/31
interface loopback0
description “Router ID”
no shutdown
ip address 10.0.2.2/32
Configure a route map and IP prefix list to redistribute all loopback addresses and leaf networks via BGP.
The command ip prefix-list spine-leaf seq 10 permit 10.0.2.0/24 ge 32 includes all
addresses in the 10.0.2.0/24 address range with a mask greater than or equal to 32. This includes all
loopback addresses used as router IDs.
The command ip prefix-list spine-leaf seq 20 permit 172.16.0.0/16 ge 24 includes the
172.16.2.0/24 network used on Leaf switches 3 and 4 as shown in Figure 17.
S4048-ON Leaf 1
S4048-ON Leaf 2
route-map spine-leaf permit 10
match ip address prefix-list spine-leaf
ip prefix-list spine-leaf seq 10 permit 10.0.2.0/24
ge 32
ip prefix-list spine-leaf seq 20 permit 172.16.0.0/16
ge 24
route-map spine-leaf permit 10
match ip address prefix-list spine-leaf
ip prefix-list spine-leaf seq 10 permit 10.0.2.0/24 ge
32
ip prefix-list spine-leaf seq 20 permit 172.16.0.0/16
ge 24
Uplink Failure Detection (UFD) is configured next. UFD is a feature that shuts down specified downstream
interfaces when all specified uplinks become disabled.