Neighbor Discovery and Recovery

Using reliable updates produces two new problems: ? The router needs to know how many other routers exist, so it knows how many acknowledgements to expect. ? The router needs to know whether a missing advertisement should be interpreted as "no new information" or "neighbor disconnected." EIGRP ...

Types of Identity

To start the integration process for your identity systems, you first must understand the different forms identity can take in an organization. Some should be obvious to you; others you might not have considered. Physical Access Several mechanisms provide security for the physical access point...

Technical Overview of Cisco IOS Frame Relay Compression Schemes

This section introduces the different compression schemes for Frame Relay that are supported by the Cisco IOS software. In general, users select a compression scheme that falls under either the payload compression scheme or packet header compression scheme.   Data Payload Comp...

Routing Multicast Traffic with PIM-SM and Auto-RP

This recipe accomplishes the same basic, but using a different method. If you are unfamiliar with PIM-SM, please read that recipe first. There are two different types of router configurations for Auto-RP configuration, just as there are for BSR. Router1 represents a regular multicast-enabled router...

EIGRP Authentication Configuration Checklist

The EIGRP authentication configuration process requires several commands, which are summarized as follows: Step 1.    Create an (authentication) key chain: Create the chain and give it a name with the key chain name global command (also puts the user into key chain config mode). T...

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