Cisco Hands On Training Podcast
By Darrell Root
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These podcasts include recordings of hands-on Cisco exercises. I recommend you scrounge or buy 3 routers, build a triangle, and follow along.
|1||CleanVideoIPv6 RIPng dynamic routing||The linked video demonstrates RIPng, our first dynamic routing protocol for IPv6. This is a simple but inefficient routing protocol. The metric is based on number of router hops, with no provision for differentiating between links with drastically diffe||3/14/2010||Free||View in iTunes|
|2||CleanVideoIPv6 Static Routing||In this hands-on exercise, we configure IPv6 addresses on 3 routers in a triangle. Then we configure IPv6 static routes to allow the 6 IPv6 subnets (3 loopback, 3 P2P links) to be accessible on all 3 routers.Static routes are easy to understand. At firs||3/14/2010||Free||View in iTunes|
|3||CleanVideoThe need for QOS versus Net Neutrality||In 2003, I made a VOIP call from home while downloading a large email attachment. The DSL line saturated and my audio quality became horrible while VOIP packets (and email packets) were being dropped. Doubling the bandwidth to my home would not have sol||3/14/2010||Free||View in iTunes|
|4||CleanVideoIPv6 theory||The linked video introduces IPv6 theory. IPv6 is the 128-bit address replacement for IPv4. The Internet is expected to run out of it's 4-billion IPv4 addresses in 2012. IPv6 will replace IPv4 at the network-layer of the OSI stack. By replacing one layer||3/14/2010||Free||View in iTunes|
|5||CleanVideoIOS Version Selection Tactics||The linked video provides guidance for optimal IOS version selection.The large number of IOS versions makes choosing the best version for your router or switch difficult. You must pick the most reliable version which includes the features you need. Diff||3/14/2010||Free||View in iTunes|
|6||CleanVideoIOS Access Control Lists||In this video demonstration, we show an example of writing IOS Access Control Lists (ACL's) on a home router. We use the revision control system (RCS) to maintain the master ACL file and push the ACL's to the router via TFTP. This is similar to many pro||3/14/2010||Free||View in iTunes|
|7||CleanVideoIOS DHCP and NAT||IOS routers can act as DHCP clients and DHCP servers. They can also function as Network Address Translation (NAT) devices. In this video we show a demonstration using a 2621 as a DHCP client, server, and NAT translation device for my home network.It's i||3/14/2010||Free||View in iTunes|
|8||CleanVideoHot Standby Router Protocol||In this episode we show a video demonstration of the hot standby router protocol. This is a Cisco proprietary redundancy protocol. The purpose is to allow two routers to share one virtual IP address on an access subnet/vlan. Hosts on the subnet can use||3/14/2010||Free||View in iTunes|
|9||CleanVideoRapid Spanning Tree 802.1w||This video demonstrates layer-2 convergence in less than 2 seconds thanks to rapid spanning-tree.Rapid per-vlan spanning-tree is configured with "spanning-tree mode rapid-pvst".The rapid spanning tree protocol, 802.1w, is the answer to the slow converge||3/14/2010||Free||View in iTunes|
|10||CleanVideoEtherchannels and the port aggregation protocol||When you have two different links between the same two switches, normally spanning tree will forward on one and block on the other. This means half of your bandwidth is sitting idle. An etherchannel is a way to bind two links into one logical link with||3/14/2010||Free||View in iTunes|
|11||CleanVideoVTP Vlan Trunking Protocol||VTP is the VLAN trunking protocol. It's used to disseminate uniform vlan information between switches over 802.1q or ISL trunks. It can also "prune" vlans, dynamically removing unneeded VLANs from trunks. This decreases unneeded frame flooding.VTP can e||3/14/2010||Free||View in iTunes|
|12||CleanVideo802.1q and ISL trunks||Switches can have multiple vlans. When we connect switches together we use 802.1q trunks (or older ISL trunks) to run multiple vlans over one physical link. With either trunking protocol, a tag is added to the ethernet frame with the vlan information. I||3/14/2010||Free||View in iTunes|
|13||CleanVideoIntermediate spanning tree||We cover intermediate spanning tree concepts. The importance of specifying your root bridge and backup root bridge with spanning-tree priority. Using portfast to allow host ports to start forwarding without waiting for 30 seconds. Using bpduguard to dis||3/14/2010||Free||View in iTunes|
|14||CleanVideoVLANs and spanning tree||VLANs are a feature of ethernet switches which makes them act like multiple "virtual switches". Each VLAN is a separate broadcast domain and could be configured with a separate subnet. That way could could have separate subnets for separate purposes (IT||3/14/2010||Free||View in iTunes|
|15||CleanVideoHow ARP and Ethernet Work||So far we've talked about how IPv4 encodes data into a packet, and how routers learn which direction to forward those IPv4 packets based on the destination IP address and the route table. But in the end, routers and hosts need to encode the IPv4 packet||3/14/2010||Free||View in iTunes|
|16||CleanVideoBGP route selection with MEDs||In BGP, MED stands for Multi Exit Discriminator. It is a well-known optional attribute which allows one autonomous system to inject it's IGP route metrics into its BGP advertisements to another BGP autonomous system. This allows the second autonomous sy||3/14/2010||Free||View in iTunes|
|17||CleanVideoBGP route filtering||We filter BGP routes in 4 different ways.||3/14/2010||Free||View in iTunes|
|18||CleanVideoeBGP and iBGP||We put together what we learned about eBGP, iBGP, and OSPF.||3/14/2010||Free||View in iTunes|
|19||CleanVideoiBGP||An iBGP example with 1 autonomous system with 3 routers.||3/14/2010||Free||View in iTunes|
|20||CleanVideoeBGP||An eBGP example with 3 autonomous systems with 1 router each.||3/14/2010||Free||View in iTunes|
|21||CleanVideoIntroduction to BGP theory||An introduction to BGP theory.||3/14/2010||Free||View in iTunes|
|22||CleanVideoOSPF route filtering and area border routers||OSPF routes should be filtered or summarized at area border routers.||3/14/2010||Free||View in iTunes|
|23||CleanVideoOSPF distribute-list problems||OSPF's fundamental design is that all routers in an area have the same exact view of the network topology. This is fundamentally incompatible with filtering routes within an area. As a result OSPF distribute lists do not have the same effect as RIP dist||3/14/2010||Free||View in iTunes|
|24||CleanVideoTotally stubby and not-so-stubby OSPF areas||OSPF totally stubby areas and not-so-stubby areas are ways to improve OSPF scalability. But they can be very confusing.||3/14/2010||Free||View in iTunes|
|25||CleanVideoOSPF stub areas and neighbor synchronization||We cover OSPF stub areas and neighbor synchronization.||3/14/2010||Free||View in iTunes|
|26||CleanVideoOSPF Redistribution||We redistribute from RIPv2 into OSPF and introduce autonomous system boundry summary LSAs and external summary LSAs.||3/14/2010||Free||View in iTunes|
|27||CleanVideoOSPF Areas and Network Summary LSA's||We introduce multiple OSPF areas and network summary LSA's.||3/14/2010||Free||View in iTunes|
|28||CleanVideoIntroduction to OSPF||We show a single area OSPF network and go into router and network link state advertisements (LSA's) in detail.||3/14/2010||Free||View in iTunes|
|29||CleanVideoShortest Path First Algorithm||A brief tutorial on Dijkstra's Shortest Path First Algorithm. This algorithm is used by most link state routing protocols, including OSPF and IS-IS.||3/14/2010||Free||View in iTunes|
|30||CleanVideoRIPv2||RIP version 2 includes subnet information in the route advertisement. It also improves efficiency by multicasting to RIPv2 routers instead of broadcasting to all hosts.||3/14/2010||Free||View in iTunes|
|31||CleanVideoMigrating from RIPv1 to IGRP via route redistribution||If you run two different routing protocols in two different parts of your network, you need to redistribute routes between the two routing protocols. This session is an introduction to route redistribution by example. In production you must be cautious||3/14/2010||Free||View in iTunes|
|32||CleanVideoMigrating from RIPv1 to IGRP via "ships in the night" routing||"Ships in the night" routing refers to two routing protocols which do not interact with each other. We can migrate from one routing protocol to a more believable one by simply turning on the new protocol then turning off the old protocol. Bug be careful||3/14/2010||Free||View in iTunes|
|33||CleanVideoIGRP: Interior Gateway Routing Protocol||IGRP is a Cisco-proprietary routing protocol. It is a classful distance vector protocol with a metric based on bandwidth and delay. This is superior to RIP, whose metric is based on hop-count. IGRP's classfulness makes it a bad choice for new deployment||3/14/2010||Free||View in iTunes|
|34||CleanVideoRIPv1 distribute lists and offset-lists||RIP distribute lists deny specific route advertisements. RIP offset-lists increase the metric (hopcount) for specific route advertisements.||3/14/2010||Free||View in iTunes|
|35||CleanVideoProblems with RIP Version 1||RIP version 1 route advertisements do not include a field for the netmask. This means receiving routers have to gess the netmask based on whatever information they have available. That includes the "natural" netmask of that classful network. That also i||3/14/2010||Free||View in iTunes|
|36||CleanVideoRIP Version 1||RIP version 1 is a classful routing protocol. We cover the RIP packet format and configuration. We see examples of split horizon and triggered updates using the RIP debug commands.||3/14/2010||Free||View in iTunes|
|37||CleanVideoStatic routing and introduction to CEF||Routing protocols (and static routing) update the route table. The route table is used to forward packets. Cisco Express Forwarding (CEF) is a special route table optimized to forward packets more efficiently.||3/14/2010||Free||View in iTunes|
|38||CleanVideoSerial and ethernet point-to-point links||We cable and configure ethernet and synchronous serial point-to-point links. In the next session these will be the "legs" of our triangle.||3/14/2010||Free||View in iTunes|
|39||CleanVideoClassful IP addressing||Routers route packets based on the destination IP address: a 32-bit number included in the header of every IP packet. Historically, "large" sites were allocated IP address blocks starting with 0 (binary). Medium sites were allocated address blocks start||3/14/2010||Free||View in iTunes|
|40||CleanVideoCisco 2500 password recovery||Every network engineer needs to be able to deal with a router with an unknown password. Whether you are taking over a site where the previous engineer was "hit by a bus", or scrounging routers from the storage closet, good network engineers can deal wit||3/14/2010||Free||View in iTunes|
|41||CleanVideoScrounging Cisco Gear and Using the Console||You can best take advantage of the Cisco training podcast series by getting routers and following along. First you need to scrounge or buy routers and cables. This episode helps you decide what to get. This episode also explains how to access the consol||3/14/2010||Free||View in iTunes|
Good l learning while on the road!
Love listening to this while on the road. Hands free learning and very detail oriented.
Certs- CCDA, CCNA, JNCIA - Junos, Sec +. I know these videos will help with getting my CCNP!!!
I am currently studying for my CCNA test in July and will also be studying further to have my CCNP by EOY. I love these videos man! After reading through that 800+ page study guide and a cram guide it really helps to SEE it being done in addition to practicing. It really helps you put it all together and there is no better way of memorizing these commands than DOING them yourself and getting them under your fingers and watching it being done. After all in the end thats what these certifications are all about and what makes them so valuable is they make you PROVE you know what you're doing to hold these Certs, not just memorize answers to a test. These videos are great to get a firsthand view of everything we are learning in action as we listen to him explain what he's doing and why he's doing it, etc.
Keep it up!!
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