CCNA Security

I have found myself using the Cisco ASA more and more in the day job. This is mainly due to me changing jobs back in March and looking after customers who have ASA deployed (and some PIX :-)) for both firewalls and VPN’s, as a result I really need…

UDLD

Unidirectional Link Detection (UDLD) is a Cisco proprietary extension that lives to detect miss-configured and broken links between Cisco switches. It verifies that they can both send and receive data on a point-to-point link. This can be used to assist spanning-tree and compliments things like ‘loop guard’ and ‘bridge assurance’…

CCIE R&S v4.0 Blueprint

The CCIE Routing & Switching blueprint can be see below, the topics that I have covered as part of my study will have hyper-links off to the corresponding post.  This is very much work in progress so therefore is far from complete. [table id=4 /]…