As of the version 4.0 blueprint OER/PfR is now being tested in the CCIE Routing & Switching lab exam. Since IOS release 12.4T Cisco renamed the technology previously called OER (Optimized Edge Routing) to PfR (Cisco Performance Routing). In the rest of this article and series the term PfR is used. The current command set is still using ‘oer’ but Cisco announced that this will become deprecated at some time.

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CCIE R&S 4.0 Clients!

We’re pleased to announce that 8 new Mock Labs (and Detailed Solution Guides) have been released (8 of the 15 labs for Volume 2). These new lab scenarios have been through a major overhaul and have been updated to include new 4.0 topics and technologies. These labs will be added to your account today if you’re an existing customer – if you do not see them, please contact our support team at support@ipexpert.com.

Thanks! – Wayne

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Cell Mode MPLS

One of the scariest topics on the SP Lab exam, right? I know for me it is a challenge because I do not feel as comfortable with ATM as I do with Frame Relay. Throw in MPLS with some completely different modes of operation than we are used to and you can smell trouble! Well if it’s one thing I learned while studying for CCIE, it is best to just face your fears and attack them. So here we go.

Our topology is as follows:

R6—-ATM—-R7—-R4

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Congratulations to:

• Atul K.Dalvi CCIE #23155 (R&S, Security)
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Today we look an issue that often leads to some head scratching. For example, you redistribute OSPF into EIGRP and have reachability into the OSPF cloud.  Next, you redistribute a loopback into EIGRP and all of a sudden you can’t reach part of the OSPF network! Here is the topology:

R1—OSPF—R2—EIGRP—R3

OSPF: 192.168.12.0/24

EIGRP: 172.16.23.0/24

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