Does the short lease/long lease scenario scale the DHCP server load
by more than a factor of two?
- Ralph
On Nov 5, 2007, at Nov 5, 2007,8:50 PM, Richard Pruss wrote:
Should this conversation not move to the int-area?
Alper Yegin wrote, around 6/11/07 5:19 AM:
1. CPE configures a pre-PANA IP address using DHCP
2. CPE runs PANA
3. CPE configures "session IP address" using DHCP
The PANA idea if using short lease/long lease DHCP address
switching in DSL deployments is simply not feasible. BRAS's with
over 60K subscribers are common and many providers have central
city pops of more than a million subscribers.
During a pop restart the 60 second lease on a million subscribers
would at best result in a sustained load of more than 16000 DHCP
requests / second smashing through the relays and into the DHCP
servers until the users had gradually authenticated.
- Ric
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