multiplex one ethernet cable into two? Networking & Security

In situation where I have access to one ethernetcable between two end points, is there a way to
cable between two end points, is there a way tomultiplex so it functions like two independent
multiplex so it functions like two independent(lower bandwidth) ethernet cables? Perhaps some
(lower bandwidth) ethernet cables? Perhaps somesort of multiplexer sitting at both end points, each
sort of multiplexer sitting at both end points, eachwith three ethernet ports, one goes to the cable,
with three ethernet ports, one goes to the cable,two others are the virtual cable end points.
two others are the virtual cable end points.A network switch is a broad and imprecise
A network switch is a broad and imprecisemarketing term for a computer networking
marketing term for a computer networkingdevice that connects network segments.The
device that connects network segments.Theterm commonly refers to a Network bridge that
term commonly refers to a Network bridge thatprocesses and routes data at the Data link layer
processes and routes data at the Data link layer(layer 2) of the OSI model. Switches that
(layer 2) of the OSI model. Switches thatadditionally process data at the Network layer
additionally process data at the Network layer(layer 3 and above) are often referred to as
(layer 3 and above) are often referred to asLayer 3 switches or Multilayer switches.Not
Layer 3 switches or Multilayer switches.Notnecessarily. You can buy physical cable splitters
necessarily. You can buy physical cable splitterswhich enable you to run two 10/100 Mbps
which enable you to run two 10/100 MbpsEthernet links (each link only needs two pairs) on
Ethernet links (each link only needs two pairs) onone regular four pair Ethernet cable. No switch, no
one regular four pair Ethernet cable. No switch, nopower needed. Caveats: Obviously will not work
power needed. Caveats: Obviously will not workfor GigE, which uses all four pairs. May or may
for GigE, which uses all four pairs. May or maynot work for 10/100 Mbps Ethernet, depending on
not work for 10/100 Mbps Ethernet, depending ondistance, cable quality
distance, cable qualityA network switch is a broadA network switch is a broad and imprecise
and imprecise marketing term for a computermarketing term for a computer networking
networking device that connects networkdevice that connects network segments.The
segments.The term commonly refers to aterm commonly refers to a Network bridge that
Network bridge that processes and routes dataprocesses and routes data at the Data link layer
at the Data link layer (layer 2) of the OSI model.(layer 2) of the OSI model. Switches that
Switches that additionally process data at theadditionally process data at the Network layer
Network layer (layer 3 and above) are(layer 3 and above) are often referred to as
In situation where I have access to one ethernetLayer 3 switches or Multilayer switches.