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Archive for the ‘Networking’ Category

Cisco IPS Inline Bypass Mode

On occasion, you may need to put your Cisco IPS into bypass mode. Bypass mode allows the IPS to pass traffic without inspecting it. This may be useful if you suspect the IPS is causing a problem, if you are going to run a one-time scan that would set the IPS off, or you need […]

Categories: Networking

Enabling Stateful Switchover in the Cisco ASR1000

When you get your brand new Cisco ASR1000 series router, Stateful Switchover (SSO) is disabled by default.

Categories: Networking

What are BGP Update-Groups?

You've certainly noticed when look at individual BGP routes on your Cisco routers that the route is advertised to specific update-groups. It isn't obvious from that output just what those update-groups are.

Categories: Networking

Cisco Catalyst NVRAM Corruption

Cisco Catalyst switches simulate NVRAM on their flash. Once in a blue moon, this simulated NVRAM will become corrupted. In order to clear up the corruption, I changed the size of the NVRAM and rebooted.

Categories: Networking

QM FSM Error? Check Your Transform-Set

If you see an error like the one below in your Cisco ASA log files, check with the other end and make sure your transform-set matches.

Categories: Networking