Types of
Routers
Firstly we understand
the concept of what is broadband connection in communication networks.
Broadband is a high-capacity high-speed Data transmission medium. This can be
done on a single cable by establishing different bandwidth channels. Broadband
technology can be used to transmit voice, data and video over long distances
simultaneously.
Routers capture
the information that come through broadband connection via a modem
and deliver it to your computer. The router choose route for the packet so
that you receive the information Firstly. Routers are multi-port
devices and more sophisticated as compared to repeaters and bridges. Routers
also support filtering and encapsulation like bridges. They operate at
physical, data link and network layer of OSI model.
Like bridges, they
are self learning, as they can communicate their existence to other devices and
can learn of the existence of new routers, nodes and LAN segments.
Types of
Routers
There are several
types of routers in the market.
Broadband
Routers
Broadband routers can
do different types of things. Broadband routers can be used to connect
computers or to connect to the Internet.
If you connect to
the internet through phone and using Voice over IP technology (VOIP)
then you need broadband router. These are often a special type of modem (ADSL)
that will have both Ethernet and phone jacks.
Wireless
Routers
Wireless routers
create a wireless signal in your home or office. So, any PC within range of
Wireless routers can connect it and use your Internet.
In order to secure
your Wireless routers, you simply need to come secure it with password or get
your IP address. Then, you’ll log on into your router with the user ID and
passwords will that come with your router.
Other
Type of Router
Edge
Router
This type of router
are placed at the edge of the ISP network, the are normally configured to
external protocol like BGP (Border gateway protocol) to another
BGP of other ISP or large organization.
Subscriber
Edge Router
This type of router
belongs to an end user (enterprise) organization. It’s configured to
broadcast external BGP to it’s provider’s AS(s)
Inter-provider
Border Router
This type of router
is for Interconnecting ISPs, this is a BGP speaking router that maintains
BGP sessions with other BGP speaking routers in other providers’ ASes.
Core
Router
A router that resides
within the middle or backbone of the LAN network rather than at its periphery.
In some instances , a core router provides a step down backbone ,
interconnecting the distribution routers from multiple building of a campus (
LAN), or Large enterprise Location (WAN). They tend to be optimized for a high
bandwidth.
Wired and
Wireless Routers.
Home and small office
networking is becoming popular by day by the use of IP wired and wireless
router.Wired and wireless router are able to maintain routing and configuration
information in their routing table. They also provide the service of
filtering traffic of incoming and outgoing packets based on IP addresses.
Some wireless routers
combines the functions of router with those of a network switch and that of a
firewall in one.
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