Dell PowerEdge R730xd - Page 39

39 Dell EMC Networking with Isilon Front-End Deployment and Best Practices Guide | version 1.0
S4048-ON Leaf 3
S4048-ON Leaf 4
route-map spine-leaf permit 10
match ip address spine-leaf
ip prefix-list spine-leaf
description Redistribute loopback and leaf
networks
seq 10 permit 10.0.2.0/24 ge 32
seq 20 permit 172.16.0.0/16 ge 24
route-map spine-leaf permit 10
match ip address spine-leaf
ip prefix-list spine-leaf
description Redistribute loopback and leaf
networks
seq 10 permit 10.0.2.0/24 ge 32
seq 20 permit 172.16.0.0/16 ge 24
Include the point-to-point interfaces to each leaf pair in an ECMP group. Enable link bundle monitoring to
report when traffic is unevenly distributed across multiple links.
Note: ECMP is not enabled until BGP or OSPF is configured.
S4048-ON Leaf 3
S4048-ON Leaf 4
ecmp-group 1
interface fortyGigE 1/49
interface fortyGigE 1/50
link-bundle-monitor enable
ecmp-group 1
interface fortyGigE 1/49
interface fortyGigE 1/50
link-bundle-monitor enable
Uplink Failure Detection (UFD) is configured next. UFD shuts down all downstream interfaces if all uplinks
fail.
S4048-ON Leaf 3
S4048-ON Leaf 4
uplink-state-group 1
downstream port-channel1
downstream port-channel3
downstream port-channel5
downstream port-channel101
downstream port-channel102
upstream fortyGigE 1/49
upstream fortyGigE 1/50
uplink-state-group 1
downstream port-channel1
downstream port-channel3
downstream port-channel5
downstream port-channel101
downstream port-channel102
upstream fortyGigE 1/49
upstream fortyGigE 1/50
Use these commands to configure BGP.
First, enable BGP with the router bgp ASN command. The ASN is from Figure 14.
The bgp bestpath as-path multipath-relax enables ECMP. The maximum-paths ebgp 2
command specifies the maximum number of parallel paths to a destination to add to the routing table. This
number should be equal to or greater than the number of spines, up to 64.