Posts tagged “OSPF”
A Little OSPF Story
Here is an exert from Aaron’s OSPF Story: Right in the middle of the config, I see “area 50 nssa”. Yes, this single non-backbone area with no real costs being advertised was configured as a not-so-stubby area. Not only did they go out of their way to make it a non-backbone area but they also wanted it [...]
10 Things You Must Know About Link-State Routing Protocols
Routing protocols are able to dynamically update and talk to each other about changes that may occur in a network, such as a link going down. The beauty of this is that, if designed properly, redundant links can quickly be found with out the network going down or users even knowing there is an issue. [...]
How to Properly Use Wildcard Masks
You will need to become familiar with how wildcard masks work in order to properly configure many different Cisco IOS commands. Mostly you will encounter wildcard masks with access control lists and when configuring the dynamic routing protocol OSPF. ACL’s are also used when configuring NAT and PAT settings. Because wildcard masks come up often they are a very important topic to understand for your ICND2 and CCNA Exam.
Router OSPF – Part 2
This is Part 2 of the Router OSPF Series which will cover topics about OSPF Areas and OSPF LSA’s. Before continuing on I recommend reading Part 1 of the Router OSPF Series which gives an introduction on the topic.
For the ICND2 and CCNA exam you will only need to configure a single area OSPF implementation, but you will still be required to know many different things about a full multi-area OSPF network.