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ONT - Epic WIN!

2010-04-08 ·3 min read

Two down, two to go. After much groaning and moaning, I’ve finally passed my ONT test. The path to this point has been full of road blocks and covered in potholes, but I finally managed to power …

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ONT - Epic Fail Part 3

2010-03-26 ·3 min read

It’s not what you think. I was talking with a buddy online last night, and he made a good point. If you keep putting off taking a test, you’ll never make any progress. I took that to …

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ONT - Epic Fail Part 2

2010-03-19 ·2 min read

I took the ONT again today. The stench of failure is upon me for a second time, and I’m beginning to think I’m not the god-like person that everyone thinks I am. I went into the test very …

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ONT - Epic Fail

2010-02-16 ·2 min read

I failed the ONT test today. It was an utter lack of subject matter knowledge that did me in from the beginning. When the first three questions mention things that I’ve never even heard, …

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Elements of Cisco Unified Wireless Network Client devices - Cisco compatible extensions on WLAN clients Mobility platform - allows configuration of LWAPs through WLCs Network unification - integration …

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ONT Notes - 802.1x and Encryption on LWAPs

2010-02-12 ·2 min read

Traditional WLAN weaknesses SSID for security Vulnerable to rogue APs MAC filtering for security WEP WEP weaknesses Disribution of static keys is not scalable WEP keys can be cracked easily …

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ONT Notes - QoS On Wireless Networks

2010-02-11 ·2 min read

Wireless LANs (WLANs) Extensions to wired LANs Carrier sense multiple access collision avoidance (CSMA/CA) as media access method Uses distributed coordinated function (DCF) for collision avoidance …

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ONT Notes - AutoQoS

2010-02-10 ·2 min read

AutoQoS benefits Automates QoS for most deployments Protects business-critical apps to maximize availability Simplifies QoS deployments Reduces configuration errors Cheaper, faster, and simpler …

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ONT Notes - Pre-classify and End-to-end QoS

2010-02-04 ·2 min read

VPNs (Didn’t ISCW cover this?) Provide Confidentiality Integrity Authentication Types Remote-access Client-initiated NAS-initiated Site-to-site LAN-to-LAN Extranet L3 Tunneling protocols GRE …

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ONT Notes - Congestion Avoidance, Policing, Shaping, and Link Efficiency

2010-02-03 ·2 min read

Tail drop drawbacks TCP synchronization - Dropping TCP packets from different flows can cause them all to window down and back up again at the same time in cycles. TCP starvation - Non-TCP or …

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