https://a996c8ee.aww-3cz.pages.dev/tags/cisco-asa-conversion-upgrade-5555x-5520/ Recent content in Cisco-Asa-Conversion-Upgrade-5555x-5520 on Aaron's Worthless Words Hugo en Thu, 20 Jun 2013 00:00:00 +0000 https://a996c8ee.aww-3cz.pages.dev/posts/2013/06/a-simple-firewall-upgrade-a-true-story/ Thu, 20 Jun 2013 00:00:00 +0000 https://a996c8ee.aww-3cz.pages.dev/posts/2013/06/a-simple-firewall-upgrade-a-true-story/ <p>I just got through a big weekend.  We upgraded our main production firewall, but the process had a few twists.</p> <p>The old firewalls, a pair of ASA 5520s, were running at about 80% CPU during the day.  That’s high enough that even I cringe when I saw the utilization in ASDM.  It was obviously time to upgrade to something with more beef, but we also wanted something that will last for years.  After looking around and getting some quotes (that made me jump back in my seat), we finally decided to go with a pair of 5555Xs.  These guys give about 10 times the throughput of the 5520 with about 8 times the memory.  Seems to match the requirements.  Now for the complications we had to work through.</p>