7 Jul
2000
7 Jul
'00
2:47 p.m.
Someone from the maker of BIND company for DNS came here, and he told us that he's using OSPF to load balance the server, I don't know how he did it. Unless he's using the small routers to do it for servers.
There are two servers that provide f.root-servers.net service; each has the f.root-servers.net address configured as an alias on the loopback interface. The servers and the two upstream routers run OSPF; the servers each inject f.root-servers.net/32 into OSPF, and the routers see two "offers" of f.root-servers.net/32 with equal cost. The routers do CEF per-destination load-splitting, which winds up splitting the load roughly 60/40 between the two servers. Stephen