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Instant Business-Level Network Analysis Reports

Overall state of the network often must be presented in condensed form to managers and non-it personnel. How can you create the reports focusing mostly on the risk and impact of the network state to users and applications?

Network gateway redundancy verification

Each network with multiple users should have a redundant gateway implemented as an exit point. For the end users, some form of first-hop redundancy protocol such as VRRP, GLBP or HSRP should be implemented. But it that really true in your network?

Balancing traffic on aggregation channels

Since the invention of EtherChannels, link aggregation bundles provide a convenient way to increase capacity or […]

Keeping the L2 switching domains stable

Many problems in the current Ethernet layer 2 switched networks can come as a result of the behavior of the Spanning Tree Protocol and its derivatives. Its fail-open nature can render large parts of the network belonging to the same switching domain unusable. There are hints in STP operation before the major disruption happens which could be used as early warnings.

Live Network Documentation

Not only network documentation takes a lot of time and effort to create, but it also becomes outdated as soon as you hit save and seems to always require an update at the time you need it most. So how can you document your network effectively?

Evaluating network performance using loss and topology awareness

Monitoring loss in a specific flow or service is precise but has a number of inherent disadvantages, such as that it must be explicitly provisioned, that the resulting measurement only tells information about a single service path, and that there is no specific information of where the loss occurred or what caused it.
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