Good question to bring up. I don't anticipate a problem though, but admit I may be making invalid assumptions. I know flash lasts usually between 1-2 million read/write cycles. Start with a 24 port switch and assume each device R/W's to one spot on the flash 10 times per day. That would equal 240 R/W cycles per day on that set of sectors. Or yearly, 87600 times. This would roughly equate to 11.4 years before flash gives out at the 1 million R/W spec.
How did I come up with 10 R/W per day? I looked at the DHCP snoop DB, and the only thing that I could see changing often was the lease timeout. Most DHCP scopes run at least 3 days and machine tries to renew after 1.5 days, which means probably another read/write cycle. This means about 1 time per day of R/W, and add in 10x for overhead. So I think I have the worst case scenario x 10 for R/W cylces. This is my assumption though!
In any case, I think the flash be able to take it! Any cisco insiders have the scoop on snoop?
