A router is a networking device that forwards data packets between computer networks. Routers perform the traffic directing functions on the Internet. ... A packet is typically forwarded from one router to another router through the networks that constitute an internetwork until it reaches its destination node. We use Cisco to connect our three remote offices using WAN technology. We have put some basic routes on the router to enable failover when a WAN link is down.
- Segments the network.
- Provides security through the use of Access Control Lists.
- Makes routing decisions using routing protocols such as OSPF, RIP, BGP etc ...
- Provides fault tolerance.
- Cisco Routers are more expensive than other competitors.
- Cisco Routers require leaning of the command line interface, complicated stuff for non-technical people.
- Interchangeability is limited with some other manufacturers because Cisco sometimes uses proprietary protocols.
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Cisco Routers do well at everything from small home office networks that require basic security to large scale service provider implementations that include SD_WAN security. Their routers scale well and they have everything from small 4 port access routers to large enterprise Core routers that function as the backbone of very large networks.