Imagine you need to send traffic from point-A to point-Z, IGP (routing protocol) provides reachability information and when a circuit breaks IGP need to re-converge, causing traffic to drop until new routing information is distributed to all nodes.
Traffic Engineering works on "make before break" concept, with help of IGP, TE Tunnels will be pre-signaled, thus convergence is typically (industry-accepted value) under 50ms
Good luck with your studies here is the starting point
6PE OverviewThe Cisco 6PE solution enables IPv6 domains to communicate with each other over an MPLS IPv4 core network. MP-BGP in the IPv4 network is used to exchange IPv6 reachability information along with a label for each IPv6 prefix announced. 6PE rout...
This document summarises various health checks that can be done on a Cisco VIM pod.
Cloud sanity checks the health status of network, storage and various openstack infrastructure components like mariadb, rabbitmq etc....
Hi - Can somebody point me to the technical details on how ASR9k refreshes the ARP cache as the cache timeout is about to expire? We are trying to understand the exact process and timing of what happens to an IP to MAC mapping in the ARP cache when ...
I'm trying to reset ASR9901, but the options (2 & 3) doesn't seem to work.When I reset after change, it boots as normal, ignoring nothing. Also I have to give the option -s (soft) -h (hard) for the reset command. Is there a different procedure for ASR...
This document and the accompanying script helps users of 64-bit IOS XR identify unnecessary files on file systems, that can lead over time to disk space shortage. A high number of showtechs or coredumps, SW packages copied to a disk are...