I have a pair of 515e devices configured in failover. The system has been working fine, however I tried to upgrade from 6.3(5) to 7.2(2) using Monitor mode, as I have PDM installed.
The problem is that whenever I enter monitor mode and apply an IP address to the inside interface, I have problems keeping a reliable connection to the TFTP server.
From Montior mode I enter the folowing commands:
At this point, I try to ping the TFTP server at 192.168.10.137 and my results are varied. Return success rate is typically 20-60%. On a rare attempt I can get 100%.
Since this is a failover configuration, I don't want to enter the IP address for this interface that it would normally use while in service, as this IP is now running on the standby PIX. Normally, I would think that there were some network issues happening, however the same network cable, switch port and switch port settings are in use during the upgrade attempt as are in use during production. Is there something different going on with the network connection in monitor mode vs normal mode? During the upgrade attempt, I noticed that the switch port this interface connects to starts getting Receive Drop errors that don't occur while the device is in production.