On Fri, 30 Aug 2013, "Rolf Hanßen" wrote:
Hello,
just for my interest: what amount of routes are we discussing ?
show platform hardware capacity:
L3 Forwarding Resources
FIB TCAM usage: Total Used
%Used
72 bits (IPv4, MPLS, EoM) 1048576 460874
44%
144 bits (IP mcast, IPv6) 524288 14178
3%
288 bits (IPv6 mcast) 262144 1
1%
Do you expect to have more than 1M IPv4 / 512k IPv6 routes or is there
some other limitation I do not see ?
Is that a Sup-2T with PFC4XL? Everything I'd read about it said it had
the same FIB as the PFC3XL. i.e.
http://www.cisco.com/en/US/prod/collateral/switches/ps5718/ps708/white_paper_c11-676346.html
The FIB in the PFC4 contains 256 K entries, while the FIB in the PFC4XL
contains 1 million entries. These are the same as their PFC3x forwarding
engine counterparts. The FIB in the PFC4 contains prefix entries for IPv4
and IPv6 global address, IPv4 and IPv6 multicast addresses and MPLS label
entries. There is a level of partitioning that exists to ensure there is
always some space available for different types of forwarding entries.
There is some flexibility from a user configuration standpoint that allows
these partition boundaries to be changed to accommodate more of one type
of forwarding entry. For example, in the PFC4XL, the default setting
provides for 512 K IPv4 entries, and this can be increased through
configuration control to support up to 1 M entries if required.
----------------------------------------------------------------------
Jon Lewis, MCP :) | I route
| therefore you are
_________ http://www.lewis.org/~jlewis/pgp for PGP public key_________
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