[c-nsp] 6500 series, FIB exception @ dfc

Drew Weaver drew.weaver at thenap.com
Tue May 14 09:28:11 EDT 2019


Quick related question.

Can you not reduce the number of MPLS routes on this platform?

User configured :-
---------------
 IPv4                - 768k  
 MPLS                - 1k  
 IPv6 + IP multicast - 120k (default)

Upon reboot :-
-----------
 IPv4                - 768k  
 MPLS                - 16k (default)
 IPv6 + IP multicast - 120k (default)

Notice that it appears to want to still allocate 16K for MPLS even though it's configured to 1k.



-----Original Message-----
From: cisco-nsp <cisco-nsp-bounces at puck.nether.net> On Behalf Of Gert Doering
Sent: Thursday, May 2, 2019 1:40 PM
To: Adrian Minta <adrian.minta at gmail.com>
Cc: cisco-nsp at puck.nether.net
Subject: Re: [c-nsp] 6500 series, FIB exception @ dfc

Hi,

On Thu, May 02, 2019 at 08:32:56PM +0300, Adrian Minta wrote:
> It appear you were hit by the "768k day":

"according to documentation", 2T/6T should be able to do 1M, and no TCAM carving needed...

With IPv6 at ~70k today, there *should* be sufficient headroom... (or, in other words, even a Sup720-XL would be fine if carved at 800k/100k)

gert
--
"If was one thing all people took for granted, was conviction that if you  feed honest figures into a computer, honest figures come out. Never doubted  it myself till I met a computer with a sense of humor."
                             Robert A. Heinlein, The Moon is a Harsh Mistress

Gert Doering - Munich, Germany                             gert at greenie.muc.de


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