EIGRP Load Balancing

EIGRP allows for up to six equal-metric routes to be installed into the IP routing table at the same time. However, because of the complex EIGRP metric calculation, metrics may often be close to each other, but not exactly equal. To allow for metrics that are somewhat close in value to be considered...

BGP Neighbor Relationships

BGP neighbor relationships, often called peering, are usually manually configured into routers by the network administrator, according to certain rules and to logically follow the overall network topology. Each neighbor session runs over TCP (port 179) to ensure reliable delivery and incremental, ra...

Implementing Banners

The following commands configure various types of banners on a router: Router1#configure terminal Enter configuration commands, one per line.  End with CNTL/Z. Router1(config)#banner exec  # This is an exec banner # Router1(config)#banner login # This is a login banner # Router1(co...

VLAN Trunks

At the access layer, end-user devices connect to switch ports that provide simple connectivity to a single VLAN each. The attached devices are unaware of any VLAN structure and simply attach to what appears to be a normal physical network segment. Remember, sending information from an access link on...

EIGRP Neighborships

Like OSPF, EIGRP uses three major steps to achieve its goal of learning the best available loop-free routes: Step 1. Establish EIGRP neighbor relationships

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