Posts Tagged ‘pfr’
Monday May 6th at 11am PDT after the current 10 Day R&S CCIE Bootcamp here in Bellevue has concluded, I’ll be holding the second part of the PfR vSeminar. This second part will cover PfR in newer IOS versions. In particular I’ll be using the same topology but with a mixture of ISR G2′s, ASR1001′s and CSR1000v’s. The ISR G2′s are running 15.3T, the ASR1001′s are running 3.9S and the CSR1000v’s are also running 3.9S. Additionally I have two of the new 3850′s in my topology. They won’t be providing anything other than L2 switching for this vSeminar but if there is enough interest I can do 1 or 2 hour short vSeminar covering them. These are really nice switches and we’re starting to replace our current switches with them.
I’ll be making another post tomorrow in regards to doing another vSeminar the same week (May 6th week) before I head to my 10 Day R&S CCIE Bootcamp and 5 Day R&S CCIE Troubleshooting Bootcamp in San Jose, CA. I’m considering doing the vSeminar on IPv4 multicast, MPLS L3 VPNs or a full scale troubleshooting lab breakdown. If anyone has any ideas or preferences for a topic let me know.
I will start off with an introduction to PfR. Then I will cover the basics of PfR. Next I will cover advanced PfR configuration along with troubleshooting. The session will start off using 12.4(15)T to cover the basics and around the second break I will switch the IOS to 15.1T and lastly switch over to IOS XE 3.9 using the CSR1000v. I will cover how PfR is used in production and how PfR can be used in your network today.
A standard topology will be followed throughout the session and all of the scenario configurations, diagrams, etc will be available after the session for you to either do on your own rack or our rental racks. I’ll publish the topology on Friday in the event you want to follow along with the live session. I’ve structured this session differently in that when the recordings are released you’ll be able to follow along with the videos which I think is key to learning a technology like this.
The previous session that I did covering PfR will be replaced with this session. The new session will be available for download on the 25th of April. This PfR session will be better than my previous PfR session but the jokes maybe the same.
Lastly this vSeminar is a great chance for everyone to see the style of bootcamps we run here at INE if you are looking for a training solution.
Here is the link to the PfR/OER videos as promised.
This recording was taken during my 10 Day R&S Bootcamp here in our new Bellevue, WA classroom so if you ever wondered what one of my bootcamps were like, now you’ll know I did keep the jokes down since it was streamed live and being recorded. Also here is a picture of the bootcamp from the last day. A couple students had early flights and missed the picture but the gentleman on my right was the Bing employee that I was referring to in a couple of the jokes. Hopefully he’ll now be infamous
If anyone has any other topics they would like to see covered let me know. I want to do a session next week on how to prepare for the R&S CCIE Lab but I could also do an additional technical topic. Let me know what you all would like to see: IOS QoS, Layer 2 QoS, ZFW, Multicast Troubleshooting, MPLS VPN Troubleshooting, etc. I could take a lab from the new R&S CCIE Troubleshooting Bootcamp and walk through it. Here are a couple of the topologies we are using: Link
**** Update ****
The videos for the session will be available tomorrow. A link will be included in the newsletter that’s going out tomorrow along with that I’ll be posting the link here. Additionally I want to do a three or five day online class covering PfR with labs as even though the seminar ran a full day I felt pressured to get a lot covered in that time plus I want to cover some of the new features that aren’t available in 12.4(15)T. Someone could easily see more points in PfR than say OSPF or MPLS in the CCIE lab today so it’s not a topic to take lightly. If there is enough interest I’ll run the class. We could price it around the $499 price range for the live version to include rack time for the week to do the labs. Let me know what the level of interest is and we could get it on the schedule.
It’s 8:30pm here in Bellevue, WA and I just finished the PfR/OER section of the 10 Day R&S CCIE Bootcamp that was broadcast live online. The session started at 9:30am this morning with a break for lunch and we ended up with roughly 10 hours of video. We had over 5000 unique IP addresses connect during the session and at the peak we were pushing nearly 80GB with our content provider. If you didn’t attend the live session, the recording will be available at the end of this week or first part of next week. I covered everything from basic PfR/OER configurations using static routes and BGP to very advanced PfR/OER configurations using PBR with GRE tunnels. This should be what everyone needs to help them prepare for the CCIE lab and fully understand PfR/OER.
I’ll post an update once the video is available. Additionally I’ll publish the diagrams, initial configurations and some lab scenarios with final configuration so you can follow along with the video.
Lastly I’ll ensure that this video is made available to our customers free of charge. Unlike some vendors who want to nickel and dime you to death by charging you for material that should be included in their main products, I’m going to ensure if you’re an INE customer you get access to the video free of charge.
This blog post is the first in a series covering Performance Routing (PfR) formerly known as Optimized Edge Routing (OER) that I will be publishing over the coming weeks. I decided to cover PfR in a series of blog posts contrary to a single post as PfR is a very powerful and useful feature that leverages the power of Cisco’s IOS but at the same time PfR is potentially very complicated and often confusing feature to configure and troubleshoot. Trying to cover PfR in a single blog post would be the equivalent of trying to cover OSPF in a single blog post. In fact if you compare the IOS 12.4T OSPF Configuration Guide against the Optimized Edge Routing (OER) Configuration Guide you will notice that OER documentation is nearly 35% larger.
In this blog post the term PfR will be used in place of OER wherever possible as Cisco has started to depricate the OER terminology and commands as of IOS 15.0.
The primary focus of these blog posts will be how PfR relates to the Routing and Switching CCIE Lab Exam (PfR v2.2). The first couple posts will cover basic scenarios (static routing and BGP) with PfR, while introducing the reader to the PfR specific terminology and features as we use then and/or run across them. After we cover the basic scenarios I will get into more complicated scenarios using PfR to optimize routing based upon DSCP values, inbound routing optimization using BGP, routing based upon application response time and voice call quality. A final post will cover PfR in IOS 15.1 (PfR v3.0) and will focus on some of the newer PfR features. I will try to keep the details and complexities of PfR out of the first couple blog posts so that the reader can gain a solid grasp of PfR before moving forward. I spend roughly half a day in my new Routing and Switching CCIE 10 Day Bootcamp covering PfR as it’s important for the R&S CCIE candidate has a solid understanding before attempting the CCIE Lab exam. Additionally, I personally believe that in the future the concept of centralized route control and/or route manipulation as with PfR could become more common, similar to the concept of OpenFlow. With that being said lets get started.
Performance Routing (PfR), previously called Optimized Edge Routing (OER), introduces a new concept into IP routing. With traditional routing, path selection decisions do not consider a particular path’s traffic characteristics be it throughput, actual delay, packet loss, voice mean opinion score (MOS), monetary cost of a given path, or jitter. PfR enhances the classic destination-based routing concept centered on the shortest path (lowest-cost metric) by adding into the routing selection process, network performance and/or application performance aware intelligence. In the past when routing protocols were implemented in large-scale networks, routers did not have the resources to calculate the best path based upon anything other than a simple metric. Additionally, many of these networks would be considered simplistic in regard to the number of primary and redundant links compared to today’s networks. With the increase in CPU power and memory available in routers today, routing based solely upon a simple metric (hop count, cost, as-path length, etc.) is not the best use of these available resources. PfR will leverage these available resources to allow routing decisions based upon additional factors namely the networks performance and/or application performance across the network. Getting the most out of your network’s available bandwidth and/or the best possible performance for your applications across the network should be one of the primary goals of any network implementation. Let’s look at an example of how we can do this using PfR.
As you have probably noticed, OER (or PfR for PerFormance Routing as they call it now) is the part of the new CCIE RS blueprint, which becomes effective as of October 2009. In short, OER is the technology that enables selecting a best exit/entry point in the network for various classes of traffic (e.g. VoIP, HTTP, streaming video and so on) based on traffic performance metrics. We are already working on the new updates, and now presenting you with a free sample of our IEWB-RS VOL1 product (technology-focused labs). The sample covers all five phases of OER, including OER profiling, measuring, policy application, control and verification. You can download the sample here VOL1 OER Sample along with the initial configuration files suited for Rack1 of our RS topology OER Initial Configuration. All scenarios are designed to be working on existing racks running IOS version 12.4. Advanced features introduced in 12.4T are to be covered in further VOL1 updates. Even if you are not interested in OER, you may still want to download the sample just to get the feeling of VOL1 tasks and upcoming new updates.