Quick Specs
-
Up to
two Fast
Ethernet
or GbE
UTP/SFP
combo
network
ports;
up to
four
user
ports
-
MEF-9
and
MEF-14
certified
for EPL,
EVPL
services
-
Extensive
synchronization
schemes
for
cellular
backhaul
applications
-
Flow-based
forwarding
-
QoS:
rate
limitation
and
shaping
per
Ethernet
flow (EVC.CoS)
-
Ethernet
OAM,
performance
monitoring
and
in-service/out-of-service
loopback
testing
-
Link
aggregation
(LAG)
per
802.3ad;
dual
homing
(1:1)
redundancy
-
RADview-EMS
management;
CLI
Configuration
RAD’s ETX-204A
best-of-breed
Carrier Ethernet
demarcation device
provides advanced
service delivery and
SLA assurance with
carrier-grade
reliability.
Converging voice and
data services over a
unified Ethernet, IP
or MPLS network, a
single ETX-204A
device delivers IP
VPN, VoIP and
dedicated Internet
access over the same
physical link as a
Layer 2 LAN-to-LAN
service, all with
differentiated
quality of service
and end-to-end
monitoring.
Synchronization
in cellular
networks is
critical to
ensure proper
quality for
mobile services.
As radio access
networks (RANs)
are rapidly
transitioning to
asynchronous
packet switched
technologies,
which introduce
packet delay
variation and
packet loss,
timing
distribution and
recovery have
become a major
challenge in the
migration to IP
backhaul.
With powerful
synchronization
capabilities,
the ETX-204A
ensures highly
accurate,
seamless
delivery of 3G
and 4G traffic
over packet
backhaul. It
enables mobile
operators and
transport
providers to
eliminate the
risk of service
disruptions,
impaired cell
hand-offs and
excessive
dropped calls,
thereby
supporting
reliable
transmission of
real-time
traffic over
PSNs. It also
ensures QoS
priorities for
clock traffic
and supports
“SDH/SONET or
better”
performance
requirements for
voice and video
traffic, such as
up to 16 ppb
(parts per
billion)
frequency
accuracy.
The ETX-204A’s
SyncToP suite
includes clock
recovery and
distribution
using
Synchronous
Ethernet
(Sync-E) and a
built-in
input/output
clock interface.
In addition, the
ETX-A devices
deliver managed
quality of
service in next
generation radio
access networks
(RANs), allowing
mobile operators
to enhance their
3.5G/4G service
performance by
combining
Ethernet
aggregation with
OAM and SLA
enforcement
capabilities –
starting at the
LTE eNodeB,
HSDPA base
station or WiMAX
cell site.
The ETX-204A
features
enhanced
Ethernet OAM
capabilities to
enable remote
and automatic
fault
localization
without service
interruptions or
costly on-site
inspections. The
device’s
comprehensive
Ethernet OAM
suite includes
Ethernet Link
OAM (IEEE
standard
802.3-2005,
formerly
802.3ah),
Ethernet Service
OAM (IEEE
802.1ag) and
Performance
Measurement (ITU-T
Y.1731).
In addition to
the
non-intrusive
OAM-based
loopback
testing, the
ETX-204A
demarcation
device supports
Layer 1, Layer 2
and Layer 3
loopbacks for
link integrity
diagnostics,
performed per
VLAN, per EVC or
per EVC.CoS,
whereby the
source and
destination MAC
and IP addresses
are swapped
without
disrupting the
traffic flows
that are not
being tested.
The ETX-204A is
equipped with
advanced,
software-based
capabilities for
handling
multi-priority
traffic,
ensuring
latency, jitter
and packet
delivery
performance on a
per-flow basis.
The device
supports traffic
classification
according to any
user-defined
criteria,
including VLAN
ID, VLAN
priority (Pbit),
DSCP/ ToS,
subscriber port,
and others, as
well as their
combinations. In
addition,
metering,
policing and
shaping
functionalities
help carriers
rate-limit user
traffic
according to
pre-defined CIR
(committed
information
rate) and EIR
(excess
information
rate) profiles,
thereby
supporting
customized
service packages
and enabling
carriers to
introduce new
revenue
generators.
Enhanced quality
of service is
further
supported by a
hierarchical
scheduling
mechanism that
combines strict
priority (SP)
and weighted
fair queue (WFQ)
scheduling, to
efficiently
handle
real-time,
premium and
best-effort
traffic. The
ETX-204A also
uses weighted
random early
detection (WRED)
policy for
intelligent
queue management
and congestion
avoidance.
By supporting
VLAN stacking
(“Q-in-Q”), the
ETX-204A enables
service
providers to
ensure
transparent
delivery of user
traffic, while
minimizing the
number of
required VLAN
IDs in the
network. In
addition, the
ETX-204A
features unique
P-bit re-marking
capabilities,
which assign
color-specific
P-bit values to
Ethernet frames
at the network
ingress to
ensure metering
continuity
across the Metro
Ethernet
network. User
traffic that was
marked “Yellow”
according to the
CIR/EIR
parameters by
the device’s QoS
engine is
assigned a new
P-bit value to
signal its
status and
priority, so
that it is
dropped first by
802.1Q and
802.1ad network
elements in the
event of
congestion. This
is especially
useful in
color-blind as
well as in
color-aware
networks with no
“discard
eligible”
(“yellow”)
marking.
The ETX-204A
features
flexible
management
capabilities,
including local
management via
an ASCII
terminal
(RS-232). In
addition, remote
management can
be performed
either inband,
using the
network or user
ports, or
out-of-band
using a
dedicated
management port,
while
maintaining
separation
between
management and
user traffic via
the use of VLANs.
Advanced FCAPS
(Fault,
Configuration,
Administration,
Performance,
Security) and
diagnostic tools
are provided by
RADview-EMS,
RAD’s
carrier-class
element
management
system, via an
SNMP-based GUI.
The ETX-204A
also supports a
variety of
configuration
access channels,
including CLI
over Telnet,
SNMP, Web
server, and TFTP.
Incorporated
security
features include
Secure Shell (SSH),
Web-based Secure
Socket Layer (SSL),
SNMPv3, and
RADIUS, as well
as management
access control
list (ACL). |
vices
to the customer premises over native Ethernet
access. In addition, it functions as a mobile
backhaul transport gateway, efficiently managing
mobile broadband traffic from the IP NodeB or
LTE eNodeB to the network core with SLA
assurance. With extensive service delivery,
performance monitoring and service
protection/redundancy capabilities, the ETX-204A
transports up to 1 Gigabit of user throughput
with differentiated quality of service and
end-to-end monitoring to ensure SDH/SONET-like
performance and Five Nines reliability. Furthermore,
incorporating RAD’s SyncToP platform of
synchronization and timing over packet feature
set, the ETX-204A utilizes standard
technologies, such as Synchronous Ethernet, to
ensure highly accurate traffic delivery in
packet-based mobile backhaul networks.