We have one Customer with two distributed locations (SW1, R1 and SW2, R2) connected over Provider backbone. What we want to create is something like this:
If Provider support 802.1q and L2 tunneling we can achieve a nice Etherchannel between our 2 remote locations with direct CDP visibility. Also STP and VTP is supported, just like when these SW1 and SW2 switches are directly connected.
Lately I’m playing a lot with virtualization features and for this I needed a rapid way to deploy from scratch new instances. First I had the virtual machines converted to templates, but then I had to rebuild from zero the entire ESXi environment and those images were gone.
Let’s assume that I have a port open in my Cisco switch for guest users and I would like to keep track of the new mac-addresses that are added or existing mac-addresses that are removed from that port.
Today I wanted to try and see how many IPv4 prefixes can a Cisco 2600 accommodate in BGP table both global and in VRF table. I have lying around a Cisco 2621XM with 64MB of RAM, so I said to stress it a bit like in the old days when it was productive.
I already explained in an older post my home lab for CCIE preparation. My BB1-BB3 routers are Cisco 2600 series and the rest of R1-R6 are emulated with Dynamips. The only problem is that one of the C2600 has too little Flash space to hold the required IOS. Memory is sufficient, but Flash not.
Imagine that you have two or more sites which you want to connect together using MPLS technology. You cannot afford dark fiber and your Service Provider cannot offer you L2 connections of any kind. The only thing your SP can offer is L3 transport. Still, you want to build your own MPLS environment and there is no way to convince your SP to enable CsC.
Let’s assume that you have an IPv4 core backbone on which you did enable MPLS. Your customers are connected to your PE routers and they need to have IPv6 reachability between their sites. To have things more clear, please have a look to the following network topology:
If you are in routing and switching industry, it’s almost impossible not to hear words like MSFC, PFC and DFC in relation with Cisco Catalyst 6500 series, chassis, supervisor and modules. If you didn’t yet, you’re not almost there, working with large enterprise environments.
“Anthony Sequeira, CCIE, CCSI educates students on four key cornerstones for success in the journey to CCIE. These cornerstones include technical knowledge, study and lab strategies, proper mindset, and physical wellness.”
I can tell you it’s not essentially a technical knowledge session, and Anthony Sequeira mention this couple of times during presentation. Nevertheless this it’s damn good for your CCIE preparation and exam itself. What Anthony Sequeira does, he tries to “educate” the attendant behavior pre and during the exam so he or she won’t go crazy. If you have a Cisco Live 365 account (it’s free to subscribe) I would recommend this presentation.