Most critical network components nowadays have some sort of failover mechanism for redundancy purposes. For obvious reasons, if all your network traffic pass through a proxy or firewall, and that node fails, ideally the traffic would be handed over seamlessly to another (similar) unit to avoid any network interruption. There are usually two implementations of … Continue reading Heartbeats and failovers
Cisco Flexible Packet Matching
While reading for my CCNA security exam I ran across an interesting link from cisco (You have to admit, if you dig deep enough some of cisco’s documentation is excellent) http://www.cisco.com/en/US/prod/collateral/iosswrel/ps6537/ps6586/ps6723/prod_white_paper0900aecd80633b0a.pdf It describes their Flexible Packet Matching (FPM) engine, available on certain routers and switches. To me this seems a fancy way of saying that … Continue reading Cisco Flexible Packet Matching
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