On 2012-02-04 15:00, Nick Hilliard wrote:
On 04/02/2012 12:33, Mark Tinka wrote:
But the ESP5 isn't modular. It is a fixed ESP in the ASR1002
and ASR1001. I confirmed with our SE a while back - the
documentation on those tables is somewhat misleading.
Can someone from Cisco clarify this? The URL is quite specific.
Those are numbers from the control-plane point of view with 8GB of
RAM installed, so up to 1M routes. The Table 3 on the link you
provided shows forwarding-level perspective on the ASR1001 and
the ESP5 that is sitting inside of it:
http://www.cisco.com/en/US/prod/collateral/routers/ps9343/data_sheet_c78-450070.html
ASR1001 can be a fine RR for your network, and has features that
limit number of FIB-installed entries, while the RIB can hold a lot
of them.
ESP5 on the other hand can store approx. 512k IPv4 routes *OR* 128k
IPv6 routes. For a mix of these, rule of thumb is pretty obvious - you
take 4 IPv4 routes for each 1 IPv6 route installed. Please note however
hardware specific checks like the one found on for example 6500/7600
units with carving of TCAM space are not present here - the mix will
be dynamic.
--
"There's no sense in being precise when | Łukasz Bromirski
you don't know what you're talking | jid:[email protected]
about." John von Neumann | http://lukasz.bromirski.net
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