RAD Data comm TDMoIP Gateway IPmux-16 Manuale Utente Scaricare il pdf (Pagina 10)

179

RAD Data Communications 2009 Catalog

•

Economical, high density gateway

extending TDM-based services over

packet networks

•

Aggregates up to 32 customer-end

gateways over Fast Ethernet links

•

Provides PSN and SDH access over

Gigabit Ethernet and channelized

STM-1 uplinks

•

ASIC-based, standard pseudowire

support

•

QoS with four priority queues

•

Up to four GbE ports in link aggregation

group according to 802.3ad; SDH APS

(1+1) support

•

Redundant power supply and fans

For latest updates visit www.rad.com

179

RAD Data Communications 2009 Catalog

POP/Central Office

IPmux-155

IPmux-2L

ETH

PBX

IPmux-2L

ETH

PBX

Fiber

4 x GbE

1+1 Ch. STM-1

Packet

Switched

Network

SDH

IPmux backhaul aggregation and pseudowire termination for E1 and Ethernet

traffic over fiber

IPmux

PBX

E1FE

SDH

IPmux-155

1+1

Ch. STM-1

Network

GbE

IPmux

PBX

E1FE

Remote IPmux aggregation and pseudowire termination over PSN

IPmux-155

Hub-Site Pseudowire Access Gateway

The IPmux-155 is a cost-competitive access

aggregator, delivering TDM pseudowires and

user LAN traffic to packet switched networks. In

addition, it performs as a pseudowire

termination unit, sending TDM bundles to SDH

backbones and Ethernet traffic to packet

networks.

Working opposite CPEs, such as the IPmux-2L, it

allows enterprises to replace expensive leased

lines with cost-effective packet transport and

offers an ideal solution for economical PSTN

access and PBX backhaul.

The IPmux-155 includes a wire-speed, non-

blocking Ethernet switch. Its high capacity

includes the following interfaces:

•

32 fiber or copper Fast Ethernet ports

•

Four fiber or copper Gigabit Ethernet ports

•

1+1 STM-1 ports

Advanced pseudowire functionality

Incorporating RAD’s new generation of ASIC

processors, the IPmux-155 features enhanced

pseudowire performance with minimal

processing delay, including support for standard

SAToP emulation mode. This allows the

extension of TDM services from legacy

backbones over greenfield packet networks

without affecting service quality or user

experience. The IPmux-155 supports separate

configuration for up to 63 pseudowire

connections. Configurable packet size balances

PSN throughput and delay, while a jitter buffer

compensates for packet delay variation (jitter)

of up to 200 msec in the network.

Timing and synchronization

The IPmux-155 supports various clocking

options to ensure synchronization as any

standard TDM device. These include loopback

timing, external clock source or internal clock,

using the device’s own oscillator.

The IPmux-155 can also recover the original

clock with great accuracy, using adaptive clock

recovery (ACR). In addition, clock capabilities

include holdover and hitless switching.

Ethernet capabilities

The IPmux-155’s Ethernet attributes include

port-based VLAN membership and VLAN

tagging, as well as VLAN stacking (Q-in-Q). In

addition, it supports port-based rate limitation

per granular committed information rate (CIR)

and committed burst size (CBS), enabling the

total transmitted bandwidth to be adapted to

the limitations of the transport media.

Ethernet QoS features include four priority

queues, scheduled by a Weighted Round Robin

mechanism. Traffic is classified according to ToS/

DiffServ, DSCP, 802.1p, or port default priority.

OAM and diagnostics

The IPmux-155 incorporates a pseudowire OAM

mechanism that enables end-to-end monitoring

of the pseudowire link. Diagnostic loopbacks

can be activated, while network condition

statistics for the LAN and IP layers are also

monitored and stored by the device.

Performance monitoring parameters include

packet loss, packet mismatch and packet delay

variation.

EMS management

The IPmux-155 features flexible management

capabilities, including local management via an

ASCII terminal (RS-232). In addition, remote

management can be performed either inband or

out-of-band, using the network or user ports,

while maintaining separation between

management and user traffic via the use of

VLANs. Advanced FCAPS (Fault, Configuration,

Accounting, Performance, Security) and

diagnostic tools are provided by RADview-EMS,

RAD’s carrier-class element management system,

via an SNMP-based GUI.

The IPmux-155 also supports a variety of

configuration access channels, including Telnet,

SNMP, Web server, and TFTP.

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