technology, networking, virtualization and IP telephony
About six months ago we started looking at replacing our aging Cisco 4500 chassis switches that were over 11 years old and starting to show their age with PoE issues, line card failures and numerous bad ports. We had a simple campus network design … [Continue reading]
I honestly wasn't planing a desktop upgrade, but you know what happens when hardware dies... time for an upgrade.Unfortunately the wife's computer recently died so I gave her my desktop (swapping SSDs and hard drives) and went about putting … [Continue reading]
I just recently had two HA pairs of Cisco ASA firewalls just stop communicating. A reboot of both the primary and secondary firewall in each HA pair resolved the problem. I had never observed such odd behavior from two pairs of Cisco ASA firewalls so … [Continue reading]
I recently stumbled over an interesting problem with Verizon's FiOS Internet service while doing some consulting. In an effort to protect the innocent and prevent and ass hattery, I've changed the IP addressing to use something from RFC5737.A … [Continue reading]
I've recently started deploying the Juniper EX4300 in a large campus rollout (more on that in a future post) and during an forklift upgrade last night we ran into an interesting issue. We have some Wattstopper lighting control systems that require … [Continue reading]