How to change the format of MAC address strings in Ansible.
Why parsing display commands with Ansible can often provide a 100% hit rate
A lesson I learnt the hard way about sending commands to a network device and parsing the result.
Upgrading comware IRF stacks with no downtime (kind of)
Upgrading a stack of comware switches is easy. Upload the file and reboot. If you serve users who might notice 10-15 minutes down time you need to read this article to understand how to perform an (almost) zero downtime upgrade.
Enabling Traceroute on Comware Switches
Unlike any other vendor I've worked on, comware switches and routers do not reply to traceroute attempts by default. If you traceroute through a router you'll get no response on that hop: C:\>tracert switch1 Tracing route to switch1 [10.4.228.2] over a maximum of 30 hops: 1 <1 ms <1 ms <1 ms router2 [188.8.131.52] 2... Continue Reading →