There is a new EIGRP feature called EIGRP OTP. I heard about it for the 1st time at Cisco Live this year. It was a teaser because at the time it was announced, no public code version supported it (meaning I could not test it). I was fortunate enough to be able to use a demo setup (running IOU) where I was able to test it out.
Today Donnie Savage (the guy at Cisco behind EIGRP) announced that the OTP config guides were available on CCO. I ran to update my CSR1000vs to the latest release, and found to my surprise that its finally supported!
This is a really cool feature that uses LISP encapsulation for the data plane (no LISP control plane here).
CG-CSR1000v-3#show ip route eigrp | b Gateway
Gateway of last resort is not set
2.0.0.0/32 is subnetted, 1 subnets
D 2.2.2.2 [90/93994331] via 10.100.23.2, 00:10:55, LISP0
CG-CSR1000v-3#show run | s router eigrp
router eigrp ROCKS
!
address-family ipv4 unicast autonomous-system 100
!
topology base
exit-af-topology
neighbor 10.100.23.2 GigabitEthernet1 remote 2 lisp-encap
network 3.0.0.0
network 10.100.23.3 0.0.0.0
exit-address-family
I am running this version:
CG-CSR1000v-3#sh ver | i IOS
Cisco IOS XE Software, Version 03.10.00.S - Extended Support Release
Cisco IOS Software, CSR1000V Software (X86_64_LINUX_IOSD-UNIVERSALK9-M), Version 15.3(3)S, RELEASE SOFTWARE (fc1)
The purpose of this feature is get rid of redistribution between PE-CE devices, and basically allow the SP core to be "transparent" to the CE devices. The CE devices can peer EIGRP directly with each other, going accross the SP core, leveraging the LISP encap.
The concept of an EIGRP Route Reflector was also introduced for this design.
I am really happy being able to finally test this out and wanted to share =)
Pablo