[j-nsp] Routing-Instance Removal Memory Savings

[Jose Madrid]

Hello everyone,

I have a customer who is using a routing-instance per provider on an
M7i.  There is no real reason for this doing this and he only has it
this way due to a previous consultant who decided that would be best.
The box is running hot and sits at 93% memory utilization.  I am
trying to calculate the memory savings from removing the
routing-instance and just incorporating the routes into the main
instance, which is being done by policy anyway.  Any idea how I can
find out a real number savings or a percentage? Here is the output of
a "show route instance".  Any help would be much appreciated.  Thank
you.

> show route instance
Instance             Type
         Primary RIB                                     Active/holddown/hidden
master               forwarding
         inet.0                                          314403/0/0
         mpls.0                                          0/0/0
         inet6.0                                         0/0/0
         l2circuit.0                                     0/0/0
__juniper_private1__ forwarding
         __juniper_private1__.inet.0                     2/0/0
         __juniper_private1__.inet6.0                    4/0/0
__juniper_private2__ forwarding
         __juniper_private2__.inet.0                     0/0/1
isp-a                 virtual-router
         ispa.inet.0                                     310054/0/0
         ispa.iso.0                                      0/0/0
         ispa.inet6.0                                    0/0/0
isp-b               virtual-router
         ispb.inet.0                                   309416/0/0
         ispb.iso.0                                    0/0/0
         ispb.inet6.0                                  0/0/0


-- 
It has to start somewhere, it has to start sometime.  What better
place than here? What better time than now?