RAD Data comm RICi-622GE Bedienungsanleitung Seite 5

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46
RAD Data Communications 2011 Catalog
ETHERNET OVER TDM
RICi-4E1, RICi-4T1,
RICi-8E1, RICi-8T1
Ethernet over Four
or Eight E1 or T1 NTUs
These protocols allow service providers to
dynamically allocate bandwidth to their
customers by simply changing the number of
links bonded to the virtual group, without the
need to change the NTU device or stop the
service. In addition, the devices support up to
four or eight GFP VCAT groups (VCG), allowing
the connection of up to four or eight different
customers per site.
Enhanced service delivery capabilities
The RICi-4E1, RICi-4T1, RICi-8E1, and RICi-8T1
can operate in either bridge or flow modes.
When working in flow mode, advanced,
software-based capabilities enable the handling
of multi-priority traffic to ensure latency, jitter
and packet delivery performance on a per-flow
basis. The devices support traffic classification
according to any user-defined criteria, including
VLAN ID, VLAN priority (P-bit), 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 for additional
revenue generation.
VLAN stacking and color-sensitive
P-bit re-marking
By supporting VLAN stacking (Q-in-Q), the RICi
demarcation devices enable service providers to
ensure transparent delivery of user traffic, while
minimizing the number of required VLAN IDs in
the network. In addition, they feature 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.
SNMP management
The RICi-4E1, RICi-4T1, RICi-8E1, and RICi-8T1
feature 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,
Administration, Performance, Security) and
diagnostic tools are provided by RADview-EMS,
RAD’s carrier-class element management
system, via an SNMP-based GUI.
All four devices also support a variety of access
protocols, 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).
Fast Ethernet/GbE over four/eight
framed or unframed E1/T1 circuits
Circuit bonding using MLPPP or standard
Ethernet over NG-PDH with multi-VCG
support
Metro Ethernet Forum certified (MEF-9,
MEF-14) for EPL, EVPL services
Up to four 10/100BaseT user ports or a
combination of two GbE and two Fast
Ethernet ports
Hierarchical QoS with configurable
Strict Priority and WFQ (weighted fair
queuing) scheduling, EVC shaping
Color-sensitive P-bit re-marking
Ethernet OAM per 802.3-2005 (formerly
802.3ah), 802.1ag and performance
monitoring per ITU Y.1731
Secure Telnet and Web applications;
SNMPv3 and RADIUS
Backhauling IP DSLAM and WiMAX base station traffic over n x E1 or T1 circuits
The RICi-4E1, RICi-4T1, RICi-8E1, and RICi-8T1 are
network termination units (NTUs) connecting Fast
Ethernet or Gigabit Ethernet LANs over multiple
bonded PDH links, enabling service providers to
extend high capacity Ethernet–based services to
remote locations. The devices are also used to
backhaul Ethernet traffic from HSDPA IP Node Bs,
IP DSLAMs and WiMAX base stations over copper-
based or microwave PDH connections.
Ethernet over NG-PDH encapsulation
and bonding
RAD’s RICi NTUs support MLPPP bonding as well as
standard Ethernet over NG-PDH protocols,
including GFP (G.8040, G.7041), VCAT (G.7043)
and LCAS (G.7042).
For latest updates visit www.rad.com
CO/HQ
GbE
Packet
Switched
Network
Egate-100
STM-1/OC-3
(APS)
10/100BaseT
WiMAX
base station
Remote Locations
4xE1/T1
RICi-4E1/
RICi-4T1
10/100BaseT
IP DSLAM
8xE1/T1
SDH/SONET
RICi-8E1/
RICi-8T1
3xDS3
RICi-8E1/
RICi-8T1
10/100BaseT
LAN
4/8xE1/T1
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