Patton electronics 2888 Guide de référence

Page 1 of 2

Product Brief

Product Model

Product ModelProduct Model

Product Model

IpLink™ Model 2888

Product Name

Product NameProduct Name

Product Name

Multi-Megabit Inverse Mux

Usage

UsageUsage

Usage

Transparent Ethernet Extender over Bonded T1/E1 ircuits

Product

Description

The Model 2888 Multi-Megabit Inverse Mux is a managed Ethernet bridge

with two (2 Gigabit Ethernet ports and either two (2 or four (4 T1/E1

ports. The Inverse Mux transports jumbo Ethernet frames over bonded T1/E1

circuits using Multi-link PPP, creating up to an 8 Mbps transparent Ethernet

connection. Complete with Layer 2/3 filtering, Layer 2/3 traffic shaping and

Active Layer 2/3 QoS, the Model 2888 enhances an enterprise’s ability to

address the Wide Area Network (WAN bandwidth requirements of most

Ethernet applications.

Who is it for?

The Model 2888 Multi-Megabit Inverse Mux is designed to bridge the Ethernet/IP bandwidth gap between a single

T1/E1 and a T3/E3. Bandwidth hungry applications such as database/Intranet, VoIP and surveillance video over IP that

need to be transported over the WAN will benefit from a resilient multi-circuit solution.

Position Statement

For enterprise IT Managers needing to bridge the

bandwidth gap between a single T1/E1 and a T3/E3,

the IpLink™ Multi-Megabit Inverse Mux transparently

transports Ethernet over bonded T1/E1 circuits.

Unlike solutions from Cisco and others, which are

difficult to configure, the Multi-Megabit Inverse Mux

makes it easy to transparently pass ALL Ethernet

frames over the WAN while applying ACTIVE Layer

2/3 QoS, traffic shaping and filtering.

Feature Benefit Summary

Feature

Advantage

Benefit

Bonded T1/E1

Bridge the bandwidth gap

between

a single T1/E1 and a T3/E3

Provide symmetric high

speed

network

interfacing that is affordable to and

right sized for the application’s need

Transparent

Ethernet Bridging

Transparently bridge Ethernet traffic

and pass any application traffic

Avoid complicated IP routing

configurations needed to create

redundancy

Active QoS

Provide

the managed tools to ensure

network up time & application

availability to different traffic flows

Guarantee real

time application services

with bandwidth on demand

Enterprise WAN Access Solutions

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Product Brief

Solution Description

As enterprise IT managers leverage the convergence of voice, video and data over Ethernet, the need to transport

Ethernet over the WAN at speeds greater than a single T1/E1 increases. Avoid switching to an expensive T3/E3 circuit,

transitioning to an unproven Ethernet based WAN service or spending endless hours configuring IP routing redundancy.

Use the Model 2888 to bond multiple T1/E1 circuits and increase point-to-point Ethernet bandwidth without

overcomplicating configurations or sacrificing resiliency.

Problem

Issue

Impact

Our Solution

Need faster

point to point

connections

A single T1/E1 is not

fast enough any more

T1/E1 alternatives

introduce cost, risk,

complexity and are

not available

everywhere

Stick with well

known

reliableT1/E1 circuits and

bond them together for

maximum bandwidth

Complex Router

Configurations

Configuring IP load

balancing is complex

Increases risk router

is misconfigured

Simplify by bridging

Ethernet traffic over the

WAN

Prioritizing some

applications over

others

Real

time applications

need dedicated

bandwidth and higher

priority

Without active QoS

voice and video

applications will be

unusable

Apply active layer 2/3 QoS

and guarantee applications

the bandwidth they need

Unique Selling Position

The IpLink™ Model 2888 Multi-Megabit Inverse Mux increases point-to-point Ethernet/IP bandwidth over standard

T1/E1 circuits, reducing configuration complexity, and providing active QoS for real-time application requirements.

Top

FAQ

Q. If all my traffic

Q. If all my traffic Q. If all my traffic

Q. If all my traffic is IP why should I use Ethernet bridging?

is IP why should I use Ethernet bridging?is IP why should I use Ethernet bridging?

is IP why should I use Ethernet bridging?

A.A.

A. The other alternative, configuring a router for load-balancing can be a difficult task. First of all, a router can load

balance outbound traffic only. To get bidirectional load balancing requires complex configuration at both ends.

Secondly, both routers must be configured to assign the same administrative distance and cost to a destination. Lastly,

load balancing at the IP packet layer creates a situation where packets can reach the destination out of order, creating a

problem for streaming media such as video. By using Ethernet bridging and relying on ML-PPP, the configuration is

simplified and the out of order packet problem eliminated.

Q. What happens if one of my T1/E1 fails, does my entire link go down?

Q. What happens if one of my T1/E1 fails, does my entire link go down?Q. What happens if one of my T1/E1 fails, does my entire link go down?

Q. What happens if one of my T1/E1 fails, does my entire link go down?

A.A.

A. No, with ML-PPP, if a T1/E1 goes down, the Ethernet traffic will continue to flow across the active links. When the

failed link comes back up, full bandwidth is automatically restored without manual intervention.

Q. Does the Inverse Mux use ATM

Q. Does the Inverse Mux use ATM Q. Does the Inverse Mux use ATM

Q. Does the Inverse Mux use ATM to multiplex the T1/E1 circuits?

to multiplex the T1/E1 circuits?to multiplex the T1/E1 circuits?

to multiplex the T1/E1 circuits?

A.A.

A. No. The Inverse Mux uses Multi-Link PPP (ML-PPP which is 18% more efficient than ATM when using 256 byte

packets. Efficiency increases further with packet sizes of over 1,000 bytes which are typically used by streaming video.

Q. Q.

Q. Does the IpLink

Does the IpLinkDoes the IpLink

Does the IpLink™

™™

™

Inverse Mux support VLANs

Inverse Mux support VLANsInverse Mux support VLANs

Inverse Mux support VLANs?

A.A.

A. Yes. The Inverse Mux can be configured to apply QoS based on VLAN tags as well as tag untagged VLAN traffic. It

can likewise transparently pass VLAN, Cisco ISL and MAC-in-MAC (PBB frames as well as MPLS tagged traffic.

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