Search the Community
Showing results for tags 'EIGRP'.
Found 4 results
Introduction - I've been out of it for a while now, 1.5 years or so by now. So I'm starting fairly fresh. I started last night by setting up some gear - 19 4500/4700 Routers to be my MPLS/Service Provider Core and edge - also serves as a nice foundation for the troubleshooting section of the CCIE RS Labs. I've got a literal army of 1700/2500/2600/3640 Routers to service my Troubleshooting Sections - various configurations - this is another 60+ routers in total. I have to count them but I know I have 30+ 2600 XM/Non-XM's, almost 20 or so 1700's, and at least a dozen 3640's so that is literally enough for mostly anything. The location I'm using is power-full - over 400amps of power and ample cooling. The idea is to use 3 VoIP Routers for my Voice Lab, and then 3 more routers as the remaining routers for the primary CCIE RS Lab. L2 Routers - 2950's connect the RS Routers, Security, SP, VoIP, WLAN, SAN, and CCDP/E, racks of gear together - to the backbone itself. This may sound overly complex but hey... it just is. It's my skillsets and I've CCNP/CCDP level in all of the above skillsets and so I have my reasons - I'm also a practicing Enterprise-Level Network Architect/Engineer/Manager so... It works for me. I have a slew of Firewalls, IPS/IDS, Load Balances, WLAN Gear, Authentication, Network Management/Analysis, Domain and Workstations of various types to do as I please for my little network. I know its overkill and Mark will be the first to remind me. It's what's on my plate and this is how it is going to work. I cannot afford to constantly rebuild/re-design the lab so I'm doing it up front and in a scalable manner. I'll supply some pictures as I go and of course will answer any questions as best I can and if they are practical I can lab them up on this gear. I said some pictures - I meant a lot of pictures - this is meant to be a practical and very visual journey. I've purchased mostly every work book by now and I have access to every book there is in print - so I can work with mostly anyone on any problem as I go. My primary goal is experience and expertise and of course if I'm doing all this correctly a CCIE or two may come of it eventually. No rush for me. I already command a CCIE Plus's salary and benefits and am bombarded daily by so many offers it is nothing less than incredible - so I don't have the need to rush it or need a vendor to validate what I don't know yet. Anyone reading what I'm writing can make that distinction clearly enough. So I guess this is sort of my own little onlineportfolio of what my own capabilities are and are not. I do have to take the exam and I am due to re-take the CCIE RS Written again and it will renew several of my lower-level certifications at the same time. I have to admit that I get books and perform book reviews for Cisco Press so I may sideline publicly to demonstrate some labs or concepts I find interesting along the way. As of now: 1. I stacked some 4500/4700 routers. 2. I started reading the old Chesapeake class on BGP from the 1990's. After I complete my refresher reading, I'll take on the labs included in this course. OSPF is the next course from the same training course of the period and I'll be working on it next. Sounds old but I like them and they work for me. Anyone intersted is welcome to follow along. I'll probably use Visio and Adobe PDF's to illustrate the lab scenarios I am working on for a more visual representation of my work. Expect a lot of output from the Routers in each lab. Might be boring to some people. Maybe not to everyone. This is all just to warm up for more things to come.
I made a simple lab on Cisco packet tracer 5.33 to try to make a mutual redistribution between EGRP and Rip V2(see attached picture). Router 0 <-------->Router 1 <-------->Router 2 Router1 is running both EIGRP and RIP V2 and is used for mutual redistribution. Router 1 sees all routes, and they are properly showed in its routing table. Router 2 also sees all routes, but Router 0 doesn't see the 172.20.2.0/24 network which is connected to Router 2. No matter what parameters I change I couldn't make Router 0 to see this particular network. Redistribution on Router 1 was done correctly with all metrics included. Can you provide some help?
Hi I am new to CCNP. I studied a lot about redistribution in RIP and EIGRP. And I found that offset-list command is usually used to avoid slow link when chosing best route to the destination. I want to know what is the offset value mean. In examples in CCNP book, offset-list 21 in 2 serial 0/0 to avoid serial link and to use other ethernet link instead using access list 21 and offset value 2 . I want to know how the routing algorithms RIP or EIGRP calculate the route based on the offset value. How should I choose the best offset value based on the network design. Thank in advanced . nythu
Is there ever really a reason to change the K values or the bandwidth and delay of the interface, as far as eigrp metric is concerned? It seems like an offset list is really the best way to manipulate the metric. Cisco book says: "In practice the most reasonable and commonly used methods are to set the interface delay and bandwidth" But then they say it’s not such a good idea to set the BW as it affects other things, especially WAN links as the BW is usually set in relation to the CIR and all that. They also mention that changing the delay can affect other thing, but they don’t mention what that is.... Why would anyone want to bother with that horrid K value calculation changing those looks like the most complicated way to manipulate the metric, why even do it at all? So it really seems like an offset list would be the simplest/cleanest way. The only thing I can think is that using an offset list would cause some extra CPU usage, and that’s why Cisco doesn’t say it’s the most reasonable and commonly used method to change the metrics.