<div>
<div class="content wysiwyg-content">
I just bough a couple of Cisco 3900 series routers and I see that it has 3 gig ports. But for gig0/1 and 0/2, I see that it is either copper or fiber. I have 2 SX transceivers plug into it. My question is I can use those 2 ports either copper or fiber. Correct? Can I use one with fiber and the other one for copper? <br />
Also, is there a command to see the hardware connection to the ports. On the switch, I use sh int status and I can see the spec for the ports, either copper or fiber. But that command does not seem to work on the router. Thanks
</div>
</div>


I just bough a couple of Cisco 3900 series routers and I see that it has 3 gig ports. But for gig0/1 and 0/2, I see that it is either copper or fiber. I have 2 SX transceivers plug into it. My question is I can use those 2 ports either copper or fiber. Correct? Can I use one with fiber and the other one for copper? 
Also, is there a command to see the hardware connection to the ports. On the switch, I use sh int status and I can see the spec for the ports, either copper or fiber. But that command does not seem to work on the router. Thanks

cisco 3900 series router LAN ports

A router is a networking device that forwards data packets between computer networks. Routers perform the "traffic directing" functions on the Internet. The most familiar type of routers are home and small office cable or DSL routers that simply pass data, such as web pages, email, IM, and videos between computers and the Internet. More sophisticated routers, such as enterprise routers, connect large business or ISP networks up to the powerful core routers that forward data at high speed along the optical fiber lines of the Internet backbone. Though routers are typically dedicated hardware devices, use of software-based routers has grown increasingly common.

Routers

Networking is the process of connecting computing devices, peripherals and terminals together through a system that uses wiring, cabling or radio waves that enable their users to communicate, share information and interact over distances. Often associated are issues regarding operating systems, hardware and equipment, cloud and virtual networking, protocols, architecture, storage and management.

Networking

Networking hardware includes the physical devices facilitating the use of a computer network. Typically, networking hardware includes gateways, routers, network bridges, modems, wireless access points, networking cables, line drivers, switches, hubs, and repeaters. But it also includes hybrid network devices such as multilayer switches, protocol converters, bridge routers, proxy servers, firewalls, network address translators, multiplexers, network interface controllers, wireless network interface controllers, ISDN terminal adapters and other related hardware.