This article was written after migrating 3 sites with a virtual FMC at each site controlling a pair of FTD firewalls at each site, down to a single virtual FMC controlling all 6 firewalls at the 3 sites. The version of code running on FMC at the time of migration was 22.214.171.124 (build 42). Prior to this migration, we had migrated from Cisco Defense Center controlling a single Firepower ASA/IDS to Cisco Firepower Management Center and FTD(s). During this initial migration, we took several things into consideration;
According to F5, 41% of the outages in data centers are related to DNS. Today at around 12:19PM CST, we took an outage. The first thing we noticed were VDI desktops locked up. After troubleshooting a bit, I found that DNS was not resolving. So, the green text on the Umbrella VA...
First project of 2018... implementing a new web proxy company wide using Cisco Umbrella. I have to admit, I had already stood up most of the configuration and one site during a trial. Jiyon Ruffin with Cisco Umbrella was kind enough to wait for our executive process and extend our trial until we could fulfill a purchase order. Thanks Jiyon!!
The first week of January 2018, I had the pleasure of sitting in on a 2 day course, ACI Test Drive, that Cisco hosted at their Overland Park, KS office. This course was put on by Firefly and presented by Neill Craven. Neill was an excellent instructor and I must say that I was very impressed with his knowledge and sense of humor. This was a great opportunity and I highly suggest anyone who has the opportunity to take this 2 day top down approach to the current state of Cisco ACI, to take full advantage of it.