This is a single context active/ standby pair. The standard procedure for upgrade is download image to both units and reload the primary and then the secondary before primary comes back. My concern is that if a problem occurs (say corrupt image) or something else, which means neither device comes back, we will have extended outage before we can down grade and roll back the configs.
Is it possible to do one unit at a time by setting "no failover" on both devices and then upgrading individually. If so, should we do the active or standby first. Also, will the reload cause failover to re-enable thus making this method not possible.
Many thanks in advance for any assistance and clarification - Steve
Table of ContentsIntroductionVersion HistoryPossible Future
UpdatesDocuments PurposeNAT Operation in ASA 8.3+ SectionsRule Types
Network Object NATTwice NAT / Manual NATRule Types used per SectionNAT
Types used with Twice NAT / Manual NAT and Network Obje...
Table of Contents Introduction:This document describes details on how
NAT-T works. Background: ESP encrypts all critical information,
encapsulating the entire inner TCP/UDP datagram within an ESP header.
ESP is an IP protocol in the same sense that TCP an...