Ccie

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

QoS Notes - IPP and DSCP Values

2013-07-30 ·3 min read

This is a study note post, so please don’t take this as written. I’m not the authority on the subject, so please correct me if needed. Back in the day, somebody decided that we all needed …

dscp ipp mapping qos tos

CCIE R&S Written - Epic Fail (Again)

2013-07-07 ·2 min read

Yes, I failed. I think it’s pretty typical when you’re at Cisco Live, you stay out drinking and smoking cigars until 01:00, then you sit the exam at 08:00 the next morning. Considering the …

ccie fail routing switching 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 …

350-001 ccie cisco rs routing switching written

I was studying via Google+ Hangout the other day with CJ and Rob, and one of the topics that came up was that OSPFv2 advertises all loopbacks as 32-bit no matter what the configured mask is. I rarely …

ipv6 loopback ospf ospfv2 ospfv3 route

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 …

350-001 becn ccie de fecn frame frts lapf relay written

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 …

350-001 ansi ccie encapsulation frame header ietf lmi q933a relay written

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 …

350-001 ccie fragmentation interleaving lfi link multilink ppp written

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 …

350-001 ad ccie manipulation notes redistribution written