Monday, May 11, 2020

What If... There Would Be an Easy Way to Run Your Network

Imagine a life where you would be able to…

  • Find all interfaces that have VRRP configured but no useful VRRP neighbor;
  • Find all OSPF adjacencies that should be up but are not;
  • Get an alert every time the default IP route is lost;
  • Find all MTU mismatches in your network;
  • List all VXLAN-to-VLAN mappings across your data center, and find if two different VLANs map into the same VXLAN VNI;
  • Compare IP routes in your data center to those you had yesterday;
  • Verify that IP routing tables on all spine switches contain the same prefixes;
  • Do the same comparison before and after a software upgrade;
  • Identify changes in IP routing tables or ARP tables that happened between yesterday evening and this morning;

… and be able to do all that in a multi-vendor environment without writing tons of Ansible playbooks or Python code.

Thanks to (see source)

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