MQC Low Latency Queueing
Scenario: You are the VoIP specialist at the ISP you are working for. To ensure all VoIP traffic has enough bandwidth and low delay you have to implement some Quality of Service settings. It’s time to classify and…
Read More »MQC Class-Based Weighted Fair Queueing
Scenario: As the senior network engineer you are always looking for methods to improve your network. To ensure all traffic in your network has a fair share of bandwidth you decide to implement class based weighted fair queueing…
Read More »MQC Classification and Marking
Scenario: You are the VoIP specialist at the ISP you are working for. To ensure all VoIP traffic has enough bandwidth and low delay you have to implement some Quality of Service settings. It’s time to classify and…
Read More »Frame Relay DE Marking
Scenario: You are the owner of a small ISP company located in The Netherlands. Most of the equipment you have running is fairly old and you have multiple different serial links in use. Bandwidth is an issue and…
Read More »Link fragmentation and Interleaving for Multilink PPP
Scenario: Your VoIP network is a little problematic to say the least. VoIP calls sound choppy and users are complaining all over the place. You look into the datastreams and it seems large data frames are preventing VoIP…
Read More »TCP and RTP Header Compression
Scenario: You are responsible for the WAN links at the company you work for. Your routers have a very low CPU load and the serial interfaces you have are pretty slow. You decide one day to run TCP…
Read More »Payload Compression Serial Links
Scenario: You are the owner of a small ISP company located in The Netherlands. Most of the equipment you have running is fairly old and you have multiple different serial links in use. Bandwidth is an issue and…
Read More »BGP Allow AS In
Scenario: An international toy store company needs your help. They use BGP to exchange routing information between their sites but everytime one of their IBGP routers fails they have connectivity issues. Let’s see if you can help them…
Read More »BGP TTL Security
Scenario: After years of plumbing work you switched your career to become a network engineer. Besides being good at routing & switching you are very security-minded. One of your routers is connected to your brother’s network and you…
Read More »BGP Soft Reconfiguration
Scenario: You are a network engineer responsible for the network for a local fighting tournament. Two of the fighters exchange tactics using BGP to advertise the networks. They don’t want to exchange everything they know so they are…
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