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CCNP Routing and Switching ROUTE 300-101: Official Cert Guide by Kevin Wallace

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Network Traffic Types

Traffic can be sent to a single network host, all hosts on a subnet, or a select grouping of hosts that requested to receive the traffic. These traffic types include unicast, broadcast, multicast, and anycast.

Older routing protocols, such as RIPv1 and IGRP (the now-antiquated predecessor to EIGRP), used broadcasts to advertise routing information; however, most modern IGPs use multicasts for their route advertisements.

Note

BGP establishes a TCP session between peers. Therefore, unicast transmissions are used for BGP route advertisement.

Unicast

Most network traffic is unicast in nature, meaning that traffic travels from a single source device to a single destination device. Figure 1-8 illustrates an example of a unicast ...

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