[j-nsp] juniper / mx series fib usage information?

[Paul Stewart]

Unless I'm missing something you shouldn't have any issues at all...

Here is an MX480 running a pair of RE2000 routing engines.... this includes
the full IPv4 and IPv6 bogons list as well:

inet.0: 354429 destinations, 1571796 routes (354275 active, 1 holddown, 5659
hidden)
inet6.0: 36578 destinations, 82963 routes (36548 active, 0 holddown, 102
hidden)

Not remotely close to any limits that I'm aware of....;)

Paul


-----Original Message-----
From: juniper-nsp-bounces at puck.nether.net
[mailto:juniper-nsp-bounces at puck.nether.net] On Behalf Of Michael Hare
Sent: Tuesday, February 08, 2011 8:08 PM
To: juniper-nsp at puck.nether.net
Subject: [j-nsp] juniper / mx series fib usage information?

Hello-

A quick google didn't help; is there a way to tell how much space you 
have left in your FIB [absolute RAM, percentage, whatever], specifically 
for an MX with DPCs?

I am contemplating activating cymru fullbogons [v4/v6].  We currently 
carry about 350,000k v4 and 5000k v6 routes.

While initially I'm not worried, my gut tells me the v6 fullbogons feed 
will not be sustainable as it is already at 30k route for ~5k active v6 
announcements.  While their template doesn't suggest so, I plan to put 
in ingress prefix-limit maximum on their sessions to something 'reasonable'.

If I activate this, I'm hoping there is a better way to find out than 
the hard way [frantic syslogs when the FIB is full].

-Michael
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