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Patton Resource Center |
Articles, White Papers and Tutorials about
Telecom, Datacom and Networking |
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Available Topics |
VoIP Intro
(VoIP Technology, Systems, Hardware, etc.)
VoIP in Use - Applications
(Software IP-PBX,
Call managers, FAX-over-IP, etc.)
Ethernet Extension
(Ethernet distance, LAN extension, etc.)
| Inverse
Multiplexer Technology
(T1/E1
Bonding, Jumbo Frames, MLPPP, etc.)
Industrial Networking
(T1/E1
harsh environments, NEMA 4, etc.) |
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Selected Topic and Article |
Related Articles |
| Inverse Multiplexer >
T1 Bonding / E1 Bonding |
T1/E1
Bonding (a.k.a. Bonded T1/E1 and Ethernet over T1/E1) is
a networking technology that bundles 2 or more T1 or E1 circuits into a
single higher-speed channel or "pipe".
A single T1 offers 1.5 Mbps of bandwidth and a single E1
offers 2 Mbps. While bonded-T1/E1 technology can offer up
to 10 Mbps, it is most expedient in the 2-Mbps to 8-Mbps range,
above which fractional T3/E3 circuits may be more
cost-efficient.
Because it exploits the existing, copper network infrastructure,
with circuits that are in-service and already amortized,
Ethernet-over-T1/E1 technology is a highly cost-effective way
for carriers, service providers and enterprises to increase the
bandwidth of network trunks and access links.
The bundled-circuit solution is especially attractive for
extending the reach of Ethernet/IP network services to
subscriber locations where fiber is unavailable or beyond
reasonable budgetary constraints. T1/E1 bonding also alleviates
the loop length concerns associated with Ethernet-over DSL
solutions.
Historically wide area network (WAN) links have been notoriously
slow compared to the Ethernet
local area network (LAN). Over time the speed of an Ethernet
segment has increased from 10 Mbps to 100 Mbps (Fast Ethernet),
and most recently to one gigabit (Gigabit Ethernet). T1/E1
bonding offers an immediate solution to the bandwidth
discrepancy between today's user and carrier networks.
Installed in pairs, inverse
multiplexer equipment employs bonded T1/E1 technology to
create a high-speed n-by-T1/E1 communications channel using MLPPP.
Patton's IPLink™ Model
2888 Inverse Mux employs T1 and E1 bonding to provide a
transparent Ethernet link over an 4 Mbps or 8 Mbps channel.
Providing dual Gigabit Ethernet ports, the IPLink™ Model 2888
is equally ideal for carrier infrastructure, service-provider
first-mile, and Enterprise-access applications. Support
for large and jumbo Ethernet frames makes Patton's Inverse Mux
fully cable of interconnecting MPLS and PE routers (that
generate frames with multiple tags and encapsulations). The
extended MTU size (frame length) supports delivery such real-time multi-service applications as
VPNs with VLAN stacking, Internet Access, VoIP and video over IP.
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