Your browser failed to load CSS style sheets. Your browser or web proxy might not support elliptic-curve TLS

Building network automation solutions

6 week online course

reserve a seat
back to overview

Building a L3-Only Data Center with Cumulus Linux

Dinesh Dutt was the guest speaker in the second Leaf-and-Spine Fabric Design session. After I explained how you can use ARP/ND information to build a layer-3-only data center fabric that still support IP address mobility Dinesh described the details of Cumulus Linux redistribute ARP functionality and demoed how it works in a live data center.

3 comments:

  1. Cracked my mind, but can someone point me to the answers for two questions:
    1. how Linux accepts two interfaces with the same IP /32 addresses? Here it's mentioned like the matter of known fact, but I still wonder, never seen it before https://support.cumulusnetworks.com/hc/en-us/articles/204339077-Redistribute-Neighbor
    2. By what standard Linux will send ARP request on interface with /32 IP address? I'm talking here about Dual-connected Host configuration via the web-link I provided before. From my perspective static mac record for default gateway should be manually provisioned

    Andrey

    ReplyDelete
  2. I'm curious about how they handle intra-vlan traffic for hosts connected on different ToR switches. Proxy-arp/nd for unresolved addresses?

    ReplyDelete
    Replies
    1. Proxy arp for everything or vMotion breaks

      Delete

You don't have to log in to post a comment, but please do provide your real name/URL. Anonymous comments might get deleted.

Sidebar