Hey, > is there any recent study about how many IGP (isis or ospf, I don't > really care right now) routes are "too many" with current generations of > route processors? Think RSP880, NCS55xx and so on on the cisco side and > PTX1000, PTX10002, etc on the juniper side.
SPF complexity doesn't scale with routes, routes are leaves to the node. You can approximate complexity with O(ElogN) where E is edges (links) and N is nodes (routers). I've done this before IGP migration and got net1 and net2 complexity numbers separately and with summed edge+link counts, got relative difference between summed and separate and multiplied SPF time with the relative difference number to get estimated migrated network SPF aggregate time, and it's been spot-on. At any rate tens of thousands of routes is fine and normal, but if you'd try in a lab, I'd not be particularly surprised if millions work. Of course you should not really want to carry anything else but loop0 and NMS networks in IGP. -- ++ytti _______________________________________________ juniper-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/juniper-nsp
