%FIB-2-FIBDOWN: CEF has been disabled due to a low memory condition


Hi, our newest issue is regarding IP CEF on our customer device

Below are my box info:
PID: WS-C4948
OS : 12.2(46)SG

During the issue we saw the CPU on the switch was high due to IP input

 SW01#sh processes cpu sorted | ex 0.00 CPU utilization for five seconds: 99%/1%; one minute: 99%; five minutes: 99% PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process 95 192622440 589193965 326 66.93% 65.66% 64.66%… 46 32068271762086083734 1537 25.47% 24.96% 24.72% 0 Cat4k Mgmt HiPri 47 32647128041097909425 2973 4.31% 5.61% 6.09% 0 Cat4k Mgmt LoPri 178 56 109 513 0.39% 0.05% 0.01% 2 Virtual Exec 101 2594386241210181726 214 0.23% 0.20% 0.21% 0 Spanning Tree 35 710271072 183830969 3863 0.23% 0.27% 0.26% 0 IDB Work 90 147770642384385033 0 0.15% 0.17% 0.15% 0 HSRP Common 149 2742365804 618701850 4432 0.15% 0.19% 0.34% 0 OSPF-100 Router 154 74216241022734107 7 0.07% 0.06% 0.07% 0 RADIUS 88…

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The Master Plan


I like to play. I like to learn. To that end, I’ve decided to buy some equipment and build a lab. So far I’ve got a few pieces of Cisco hardware, and a server. Eventually I’ll get more equipment, though as it stands, I think I’ve spent enough money for now. (Though that opinion will likely change once I get the ISP and server up and running).

I’ve got a cloud server that I’m setting up for a VPN that I can use to connect my computers back into my lab/server from anywhere (a nice feature IMO). That’s currently running an OpenVPN setup, but I’m rebuilding it as an IPsec with NAT VPN server since that setup seems to be more common.

The server I built will serve as a test bed for whatever I want to play with at the time, and will have all the lab machines on…

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Crossing the “Cloud” Chasm

Avi Networks

— by Dhritiman Dasgupta (DD)


With any disruptive innovation, there will always be innovators and early adopters who eagerly jump on the bandwagon. Today, we’re seeing more and more businesses move to the cloud as users take advantage of its utility-based model and associated economic benefits. So why isn’t everyone “crossing the chasm” and what will it take to persuade the late majority and laggards to move to the cloud?

When I look at what businesses need to be cloud-ready, a lot of what’s needed is in place. But one big weak link is the service delivery model, which still requires too many pre-determined (i.e., slow and costly) decisions. This is a valid objection when moving to the public cloud.

Unlike in a traditional data center, service delivery in the cloud must operate like a utility, smoothly managing peaks and valleys of the demands users and apps produce. So the…

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