A router is a network device used to
forward packets from one network to another. These routers are
configured by entering values to the internal routing tables, based on
which the router forwards the packets to the desired destination.
Factors that determine the line on which the packets will be forwarded
are line cost, congestion and traffic load. The service provider edge routers
are configured to forwards packets received from one service provider
to the other. These routers are capable of handling wide range of
protocols such as Border Gateway Protocols (BGP), Open Shortest Path
First (OSPF) and Multi-Protocol Label Switching (MPLS). These routers
ensure that the service provider’s network is connected with internet,
external network or a wide area network.
In order to provide connectivity
between networks, the service provider edge router primarily need to
follow Border Gateway Protocol (BGP). BGP is basically an exterior
gateway protocol which is intended to exchange routing information
between different autonomous systems on the internet network. BGP
enables the router to decide the communication path based on the rules
set-up by the network administrator and network policies. BGP is
sometimes used for routing packets within an autonomous system. Such
type of protocol is termed as Interior Border Gateway Protocol (IBGP).
Conversely, for internet applications this protocol is referred as
Exterior Border Gateway Protocol (EBGP).
Primarily, the service provider edge
router deploys an External Border Gateway Protocol (EBGP) that is widely
employed over the Internet to ensure connectivity with the networks in
the remote sites. The prime function of a service provider edge router
is to provide communication between service provider’s network and the
autonomous systems, and networks of other service providers.
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The market for service provider edge
router is driven by the rising number of internet subscription across
the globe. Moreover, the major share of demand for internet subscription
is from emerging countries of Asia Pacific, Middle East, Africa and
Latin America. Thus, the demand for expansion of network increases to
provide highly available connectivity, which results in demand for edge
routers in the network. In addition, the on-going deployment of high
speed LTE networks across North America and Europe is further boosting
the growth of the service provider edge router market.
Currently, the major challenge with
the service providers is to balance video services, wireless services
and cloud services. Owing to this challenge, the companies are offering
edge routers that are capable of aggregating multiple IP networks into a
single IP edge to provide video services, wireless services and cloud
services. This provides tremendous growth opportunities for the existing
players such Cisco Systems, Inc. and Juniper Networks, Inc. Moreover,
the upcoming trend of transition from IPv4 to IPv6 is a potential
opportunity for the new players to enter into the market.
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