When router is booted up and running the image and config is loaded in DRAM so even if you format the flash and till the time you do not reload the router everything will be ok.
But there are some old routers like 2500 where the IOS is booted directly from flash so in that case it can be a problem.
But I will always recommend you to have a downtime arrange if his is a live network router and also make sure when you format th flash in running router you have a proper UPS system installed because by any chance if you formatted the flash and because of any problem is router get reloaded you will find yourself in rommon.
Question We run asr9001 with XR 6.1.3, and we have a very long delay to
login w/ SSH 1 or 2 to the device compare to IOS device. After
investigation, the there is 1s delay between the client KEXDH_INIT and
the server (XR) KEXDH_REPLY. After debug ssh serv...
Introduction The purpose of this document is to demonstrate the Open
Shortest Path First (OSPF) behavior when the V-bit (Virtual-link bit) is
present in a non-backbone area. The V-bit is signaled in Type-1 LSA only
if the router is the endpoint of one or ...
Hi, I am seeing quite a few issues with patch install and wanted to
share my experience and workaround to this. Login to admin via CLI, then
access root with the “shell” command Issue “df –h” and you’ll probably
see the following directory full or nearly ...