>> Here are the figures given by H. Gredler on p.266 of "The Complete IS-IS >> Routing Protocol" for a Cisco GRP 1200: >> >> Routers Links SPF time (ms) >> 100 250 4,80 >> 200 500 12,42 >> 400 1000 31,22 >> 600 1500 52,94 >> 800 2000 76,67 >> 1000 2500 101,94
> Cisco 12000 with the original GRP (I guess this is what the book is > referring to) sees to have used a 200Mhz R5000 processor with 512KB L2 > cache. Since SPF makes random memory accesses, that's probably 10-100 times faster than a MIPS 4KEc at 250 MHz with its 8KB data cache. So Homenet probably can afford to make one SPF every second, assuming a carefully crafted, native-code implementation of SPF. Which is probably achievable, but would seem to argue in favour of some smart rate limiting. You're almost tempting me into trying my hand at it ;-) -- Juliusz _______________________________________________ homenet mailing list homenet@ietf.org https://www.ietf.org/mailman/listinfo/homenet
