350-001

CCIE R&S Written -- Epic Fail (Again Again)

2013-08-07 ·3 min read

On Friday, and for the fourth time, I took the CCIE R&S Written exam (350-001). For the third time, though, I failed. Let me tell you, I am absolutely devastated. I worked my buns off for the past …

350-001 ccie exam written

CCIE R&S Written - Epic WIN!

2011-08-24 ·3 min read

The wife and I had a romantic day driving several hours to a small town to take Cisco exams. If this doesn’t get me some action, I don’t know what else to try. I’ve already used the …

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CCIE R&S Written - Epic Fail

2011-07-19 ·2 min read

It’s been a long time, eh? I’ve spent the last month or so with my nose down in a book and my mouse in a Google+ Hangout window studying my rear off for the CCIE R&S Written. Too bad I …

350-001 ccie exam rs written

Frame Relay Notes - DE, FECN, and BECN

2011-06-23 ·2 min read

All are part of the frame relay congestion management suite. Frame relay switches monitor links for CIR or oversubscription congestion on links. If the VC has a CIR of 256k, the switch knows there is …

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Frame Relay Notes - LMI, Headers, and Encapsulation

2011-06-23 ·1 min read

Local Management Interface Manages link between the router and frame relay switch Routers send Status Enquiry to the switch The switch responds with a Status message informing the router of the DLCIs …

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PPP Notes - LFI

2011-06-23 ·1 min read

Link Fragmentation and Interleaving A QoS tool to prevent smaller, higher-priority packets from waiting on larger packets to transmit For example, VoIP packets and FTP packets Fragments the larger …

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Redistribution Notes - AD Manipulation

2011-06-22 ·1 min read

Manipulating administrative distance (AD) is another way to help with a mutual redistribution scenario. EIGRPs has different ADs for internal and external (redistributed) routes OSPF and RIP have the …

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Redistribution Notes - Tagging

2011-06-20 ·2 min read

Tagging provides a way to mark common or similar routes to manipulate later. In redistribution scenarios with mutual redistribution on two different routers, any routes that gets redistributed from …

350-001 ccie notes redistribution route tag written

CCIE R&S Written Materials

2011-06-13 ·2 min read

I’m scheduled to take the CCIE R&S Written exam on 10 July at Cisco Live, and I’ve been asked by a handful of people on Twitter exactly what materials I’m using. I figured it …

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BGP Notes - Backdoor Routes

2011-06-11 ·1 min read

The fact that eBGP has an AD of 20 can be a problem. You may have a very short path via EIGRP (or OSPF or RIP or whatever other IGP), but the longer eBGP path will be preferred. For God’s sake, …

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