On 6/27/13 8:14 PM, Giuliano Medalha wrote:
People,

Thinking about configuring 2 Logical Systems in a MX480 box with RE1800X4,
how can we provide control for memory allocation ?

The box has the following configuration:

2 x RE1800X4-16GB
1 x MPC-3D-16XGE-SFPP-R-B
2 x SCBE-MX

Is it possible to control the RIB and the FIB size using JUNOS for each
Logical System ?
you can control was get's installed in the fib directly using policy...

my lab logical system route reflectors use something like this to limit what they install in the fib

routing-options {
...
forwarding-table {
export [ logical-system-fib-compress reject-all ];
}
}

policy-options {

policy-statement logical-system-fib-compress {
from protocol [ direct static isis ];
then accept;
}
policy-statement reject-all {
then reject;
}

}

which means the bgp rib can grow to fairly outlandish size and not crap up the fib associated with that logical system.

obviously you can be a little more fine grained.

Or is it automatic by the system ?

How much routes is possible in FIB for MX480 ?  2.5M ?  For this board when
create logical system it divide by two ?

Thanks a lot,

Giuliano
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