Gatekeeper Hardware Platform Statistics
Maximum Calls per Second for
Approximately 50 percent CPU
Gatekeeper Platform Memory Utilization
Cisco 2600 56MB 7
Cisco 3620 56MB 10
Cisco 3640 128MB 24
Cisco 3660 256MB 35
Cisco 7200/NPE300 256MB 50
Although it will likely be difficult to estimate the number of calls per second
that will occur in your network, this table can be used in a more relative way.
That is, going from a 2600 to a 3620 increases gatekeeper performance by
approximately 50 percent. Likewise, going to a 3640 with 128MB of memory
increases gatekeeper performance by more than 100 percent compared to a 3620
with 56MB of memory, and so on.
If the H.323 network is being deployed as an organized project where
funding is available for the initial purchase but not necessarily for follow-on purchases,
it may be safer to jump to a 3600 router as the gatekeeper. If the H.323
network is being deployed where funding is limited, a spare or lightly loaded
2600 should suffice as your gatekeeper.