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routeing table size gotcha (IPv6 ?)
I am assuming that this is the result of the IPv6 integration, but tell me
otherwise. Having innocently tried to upgrade our router kernel to
2.6-current (to support the if_dc driver for performance) I suddenly found
that the kernel was running out of memory.
Where in the past, carrying 72,000 odd routes (145,000 entries) used about
11M of routetbl entries (150 byes or so each), with the new kernel I got to
60,000 routes (120,000 routetbl entries) for 16M of space (about 260 bytes
With the growth of addresses from 4 to 16 bytes, is this major size increase
due to (a) alignment issues, (b) prefix/netmask/etc. additions or (c) me not
knowing what is going on ?
If there is someway to optimise the FIB for full-Internet route carrying
routers, I think that this would be well received.
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