Nortel Metro Ethernet Services Unit portfolio

Product Brief
Nortel Metro Ethernet Services Unit portfolio
Superior access solutions for delivering Carrier Ethernet services
Nortel Metro Ethernet Services Unit (MESU) delivers:
• A new class of highly reliable, remotely manageable, service-oriented Ethernet access
devices that can cost-effectively deliver a variety of Ethernet services to address a
host of enterprise networking, residential/triple play and mobile backhaul applications
• A high-efficiency Ethernet over fiber 1G/10G Resilient Ring supporting up to 20 MESU
switches per ring with sub 50ms protection capability, and optional dual–homed
connectivity into a Nortel MERS 8600 metro core
• Wire-speed performance along with the rate enforcement, classification, QoS prioritization
and statistics collection features that are critical for the delivery of profitable
Ethernet services and addressing customer SLAs
• Advanced network and services management supported by Nortel’s Metro Ethernet
Manager (MEM), including VPN Continuity Check, Connectivity Fault Management IEEE
802.1ag support and a full suite of OAM tools — designed to both simplify operations
and minimize ongoing OPEX
As service providers strive to generate
new revenues, the interest of delivering
services on a converged metro Ethernet
infrastructure has grown considerably
over the last few years, and is projected
to further accelerate. Ethernet, widely
known for its low cost and ubiquity in
the LAN, has now evolved to a carrierclass
technology, thanks to broad industry
support among both vendors and end
users alike. Recent developments among
respected industry organizations such as
the Metro Ethernet Forum (MEF) and
IEEE have further established Carrier
Ethernet as a foundational technology
for offering and supporting next-generation
carrier services, spanning a host of
enterprise networking, residential, mobile
backhaul and other applications.
Service providers are currently building
out their metro Ethernet cores with
advanced Ethernet networking features
such as Provider Backbone Bridges (PBB)
and Provider Backbone Transport (PBT),
which offer tremendous scalability and
predictability in the core portions of
their metro networks. To increase
customer penetration and revenues, a
key requirement is emerging to extend

the reach of Carrier Ethernet services
further out from the core and closer to
customer access locations. This has
driven the need for a new class of
highly-reliable, remotely manageable,
service-oriented Ethernet access devices
to cost-effectively aggregate Ethernet
services into this robust metro core. The
Nortel family of Metro Ethernet Services
Units (MESUs) offers a wide range of
options for Ethernet services aggregation
to address this need. The Metro Ethernet
Services Unit family enables providers to
offer high-bandwidth IP/Ethernet services
with granular service assurance and
superior operational simplicity to minimize
ongoing OPEX. MESU delivers
wire-speed performance along with the
rate enforcement, classification, QoS/
prioritization and statistics collection
features that are critical for the delivery of
profitable Ethernet services, while
addressing the SLAs required by end
customers for all manner of services.
Multiple deployment
options and access
resilience
The Nortel family of Metro Ethernet
Services Unit (MESU) platforms can
support a variety of deployment models
to suit applications for various access
topologies (see Figure 1). The four modes
of operation are: Layer 2 Switching,
VLAN (QinQ) encapsulation, MESU
Resilient Ring and stand-alone. In Layer 2
switch mode, the MESU functions as a
standards-based, high-bandwidth access
switch that provides Layer 2 operational
services such as Layer 2 VLANs, IGMP,
Spanning Tree and MLT. In VLAN
Encapsulation mode, the ESU offers
standards-based IEEE 802.1ad (QinQ)
VLAN stacking to provide secure access
to the network using the outer Q-tag
for identifying and separating customer
traffic onto separate VLANs.
Figure 1. Metro Ethernet Services Unit deployment options
2
Residential
Backhaul
Mobile
Backhaul
DSLAM/CMTS
EoBx
EoSFP
EoVDSL
Stand-alone
or QinQ mode
access
Layer 2
switch mode
Up to 20
MESUs/Ring
10/100/1000
Ethernet
access
Outside Cabinet
Multi-Link
Trunk access
Metro Ethernet Routing
Switch 8600
Carrier Ethernet
Metro Core
(PBB/PBT)
Dual-homed
access
1GE/10GE
Resilient
Rings
The MESU Resilient Ring mode offers
industry-leading reliability with high
efficiency aggregation using an Ethernetover-fiber
solution. It allows for up to
20 ESUs to be connected on a fiber ring
supporting sub 50ms protection capability,
when homed to a Metro Ethernet
Routing Switch (MERS) 8600, or a pair
of MERS 8600s in a dual-homed
configuration. MESU rings are available
in GE configurations today with support
for 10GE planned in the near future.
Another advantage of the resilient ring
architecture is the ability to optimize
unused bandwidth when aggregating
traffic into the metro core. Enterprise
customers are demanding flexible service
rates, typically at intervals lower than
the full rate of the interface (e.g., 25 Mbps
on a 100-Mbps port). If the access
infrastructure is constructed in a pointto-point
fashion, there is a greater likelihood
that the Ethernet uplink from the
Enterprise
Access
Core
networks
Metro Ethernet Service Units
1800/1850/1860/1880

CLE device to the central office device
will be severely under-utilized. The
Ethernet access ring capability enabled
by the MESU series and the MERS
8600 provides an Ethernet aggregation
network that efficiently utilizes the
access ports for optimized infrastructure
investment.
The MESU portfolio supports an
enhanced bi-directional dual-homed
ring capability that further improves
access resiliency and reduces single points
of failure. In a dual-homed configuration,
MESUs can be configured on a Resilient
Ring that begins on one MERS 8600
and terminates on another MERS 8600,
which could even be located in another
physical location. This adds another
level of resilience by providing equipment
protection at the ring ‘headend’.
In addition, since traffic can flow in
either direction around the ring, this
also improves the scalability and operational
ease of managing dual-homed
rings. Dual-homed rings are being
introduced in the latest software release
for MESU 1800/1850/1860 platforms,
and are planned for the MESU 1880 in
a subsequent release.
Options are also available for providers
with sites that cannot be supported on a
resilient ring topology but would still
like to have access resilience. For example,
dual-homed uplinks to a pair of MERS
8600s can be supported in a Layer 2
switched or VLAN (QinQ) encapsulation
mode from the MESU 1860/1880
platforms.
Multiple classes of service
and QoS support
Service providers today seek top-line
growth and must maximize revenue
generation. The ability to deliver multiple
services to each customer while leveraging
the same infrastructure helps do
just that. The MESU family allows
Table 1. Metro Ethernet Services Unit features and benefits
Feature Benefits
Ethernet Access
Ring Resiliency
IEEE 802.1Q/p and
IETF DiffServ
VPN Continuity Check
Packet classification
Granular rate
enforcement
Network management
RMON
IGMP v1/v2
service providers to deliver more than
just Ethernet connectivity service, e.g.,
ELINE/ELAN over the Metro Ethernet
infrastructure. It enables providers to
offer value-added services that enterprise
customers are demanding. End customers
can maintain the VLAN schemes used
in their own networks, yet still access
different services offered by the service
provider — all enabled by the same
Ethernet interface of the Metro Ethernet
Services Unit. Simply put, service
providers are able to leverage a lower-
Enables ring-based deployment of Metro Ethernet Services Unit,
achieving 50ms recovery in an Ethernet-over-fiber implementation;
supports up to 20 nodes per access ring for efficient access
aggregration and optional dual-homing into a MERS 8600 core.
Enables the service provider to offer multiple classes of services,
e.g. gold, silver and best effort, etc. and tiered services with
appropriate prioritization.
Couples with MERS 8600 to provide tools for performance monitoring,
service assurance, SLA measurement and troubleshooting.
Flexible classification based on: port, port + VLAN, port + VLAN +
802.1p bit, port + DSCP, and port + 802.1p combinations. Also
support filtering based on source/destination IP address, TCP/UDP
source/destination port and destination MAC address.
Supports rate enforcement of Customer Information Rates (CIRs)
and burst window sizes, where packets can be policed in user
configurable 1-Mbps increments from 1 Mbps to line rate. Policing
parameters can be set on various combinations, including: per port,
per port per VLAN, per port per VLAN per 802.1p bit, per port per
DSCP, and per port per 802.1p basis.
Command Line Interface, RADIUS authentication and accounting,
SNMPv1/v2 and management applications including: Java Device
Manager, Product Service Provisioning, Metro Ethernet Management
(MEM) system provide ease of management and flexibility to adapt
to multiple operational environments and provide comprehensive
Ethernet service provisioning, fault management and performance
monitoring capabilities, including IEEE 802.1ag support.
Supports four groups of RMON including Statistics, History, Alarms,
Events from remote monitoring and operational simplicity.
IP multicast support by examining (snooping) all IGMP traffic in
hardware at line rate and pruning unwanted data stream from
affecting network or end-station performance
cost, shared network infrastructure
across multiple customers and offer
consistent services and SLAs.
The MESU family supports packet classification
based on IEEE 802.1Q/p
and DiffServ Code Points which allows
service providers to offer tiered services
with QoS to end customers profitably.
For example, the ability to classify traffic
as early as possible helps ensure that
mission-critical applications, such as
VoIP and video, are given the level of
3

performance dictated by their service
contracts on an end-to-end basis. By
assigning different service class levels to
traffic flows, applications can be given
the bandwidth and network priority
required when and where they need it.
The MESU provides the performance
and QoS features to support the
requirements of delay-sensitive applications.
Four priority egress queues form
the basis of MESU 1800 traffic management
functionality, while the MESU
1850/1860/1880 supports eight egress
queues. With the ability to classify
traffic based on IEEE 802.1Q/p and
DiffServ markings and prioritize them
accordingly, delay-sensitive applications
can be given priority across the access.
With the MESU’s support of multiple
classes of services and QoS prioritization,
providers are able to ensure consistent
QoS to meet their customers’ SLA
requirements.
Network and service
management
The Metro Ethernet Services Units
(MESUs) are designed for ease of use to
simplify overall network operations and
minimize the service provider’s ongoing
OPEX. MESUs can be configured
quickly with minimal manual intervention,
decreasing implementation times
and reducing the risk of errors. The
MESU is fully manageable, both in or
out of band, with SNMP applications,
including Nortel’s advanced Metro
Ethernet Manager (MEM).
MEM provides both network element
and service management for the MESU
portfolio, MERS 8600 and other Nortel
Metro Ethernet platforms. MEM
provides capabilities ranging from
central device management for software
distribution to end-to-end service provisioning
across the metro network, and
the delivery of network fault, inventory
and provisioning information via stan-
4
dard northbound interfaces to higherlevel
OSS systems. With MEM, Nortel
is leveraging the expertise and knowledge
gained with circuit-based network
operations to deliver a consistent operational
model across Layer 0, Layer 1 and
Layer 2.
Nortel also provides high-value management
applications that offer comprehensive
and deterministic services
management. With the network and
service viewer feature, providers have a
proactive service assurance solution with
Ethernet OAM instrumentation and
advanced multi-layer troubleshooting.
This provides deterministic customer
and/or service impact assessment, with
fault isolation and full troubleshooting
capabilities across both Ethernet and
optical-based domains. MESU provides
support for IEEE 802.1ag — a key
Ethernet OAM standard for Layer 2
connectivity and fault management that
provides valuable tools for verifying the
availability of end-to-end Ethernet services.
This MESU-supported capability is
highly beneficial to service providers
offering Ethernet access services, by
allowing them to perform remote diagnostics
on devices deployed as CLE or
in outside plant locations, minimizing
the need for costly truck rolls.
Another key differentiator is Nortel’s
Ethernet VPN management solution:
VPN Continuity Check — a powerful
service assurance and debugging tool
critical for measuring and validating
customers’ SLAs. It may be used to validate
all VPN end-points, test connectivity
and determine roundtrip delay
measurements per VPN. This information
is used by network management to
verify that SLA parameters are being
achieved and to generate a trend of the
service report over time. This tool allows
service providers to detect problems
before customers notice any service
degradation, isolating problems quickly
and methodically. By verifying not only
the integrity of the path all the way to
the customer-facing port, but the total
delay incurred, this capability allows for
true end-to-end SLA verification.
Multiple platform options
to choose from
Nortel offers a broad portfolio of Metro
Ethernet Services Unit (MESU) platform
options to address the diverse
application and deployment needs of
Ethernet service providers. These platform
options provide Ethernet connectivity
ranging from 10 Mbps to 10 GE,
for support over a variety of fiber and
copper access topologies. Product
options available include:

MESU 1860B
Metro Ethernet Services
Unit 1800:
The Metro Ethernet Services Unit 1800
offers 24x10/100Base-T Ethernet
customer-facing ports and two Gigabit
Ethernet network-facing ports. Available
models support either 2x1000Base SFP
ports or 2x1000Base-LX with built-in
transceivers that provide flexible Ethernet
service delivery in a compact 1U high
solution. The non-blocking architecture
provides wire-speed switching for uncompromising
performance. MESU 1800
supports either AC or DC power options.
Metro Ethernet Services
Unit 1850:
The Metro Ethernet Services Unit 1850
has up to 12x10/100/1000Base-T or
1000Base-SFP ports that can be used as
either copper or SFP. The product ships
with four built-in combo ports and two
expansion slots. Each slot can accommodate
a single card. The two optional cards
available are either 4x10/100/1000Base-T
or 4x1000SFP ports. ESU 1850 supports
either AC or DC power options.
Metro Ethernet Services
Unit 1860 B/S/V:
The Metro Ethernet Services Unit 1860
comes in three models: 1860B, 1860S
and 1860V — each of which has up to
MESU 1860S
MESU 1860V MESU 1880S
24 Ethernet access ports and up to 4 x
GE combo uplink ports. The 4 GE
ports are configured as two combo ports
on the base unit and two combo ports
on an expansion card. All ESU 1860
units comes in a temperature hardened
1.5U high, NEBS and ETSI-compliant
chassis, supporting dual hot swappable
AC or DC power supplies. The variations
on the three models are as follows:
MESU 1860B: The Metro Ethernet
Services Unit 1860B has up to
24x100Base-BX access ports. The BX
interface provides highly-efficient
access by using a single strand of
optical fiber for bidirectional transmission.
MESU 1860S: The Metro Ethernet
Services Unit 1860S has up to
24x100Base-SFP access ports supporting
several options for single-mode or
multi-mode fiber access.
MESU 1860V: The Metro Ethernet
Services Unit 1860V has up to
24xVDSL2 (50/100-Mbps) access
ports. The MESU 1860V supports
the most advanced DSL broadband
standard for addressing triple play and
high-bandwidth enterprise
networking applications.
Metro Ethernet Services Unit
1880S:
The Metro Ethernet Services Unit 1880S
has 24x100/1000 SFP ports, plus up to
4x10G XFP ports. This high-capacity
platform is designed to support end-user
access or act as an aggregation node to
its smaller 1800/1850/1860 siblings.
The ESU 1880S comes in a temperature
hardened 1.5U high, NEBS and ETSIcompliant
chassis, supporting dual hot
swappable AC or DC power supplies.
Summary
In summary, Nortel’s Metro Ethernet
Services Unit (MESU) portfolio is
designed to deliver highly reliable and
predictable Ethernet services cost-effectively
to end users, enabling providers to
increase revenues while minimizing both
CAPEX and OPEX. MESU offers a
portfolio of platform options to address
a host of enterprise networking, residential,
mobile backhaul and other applications.
MESU delivers flexible access
connectivity, including Nortel’s industryleading
Resilient Ring mode, which
provides high-capacity, cost-efficient
access on a robust fiber ring with sub
50ms protection. To maximize revenue
generation, MESU enables the delivery
of value-added QoS assured services,
with advanced packet classification,
queuing and filtering to ensure service
consistency and SLA. MESU’s support
of advanced monitoring features, such
as Connectivity Fault Management
IEEE 802.1ag, VPN Continuity Check
and a full suite of OAM tools enabled
by Nortel’s Metro Ethernet Manager
(MEM) are designed to both simplify
operations and minimize ongoing OPEX.
The Nortel Metro Ethernet Services
Unit portfolio is fully equipped for
delivering next-generation Carrier
Ethernet services both reliably and
efficiently.
5

Table 2. Metro Ethernet Services Unit physical specifications
Table 3. Metro Ethernet Services Unit technical specifications
6
Category
Performance specifications
Switching capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Up to 72 Gbps switching fabric capability
Forwarding rate: (64-byte packets) . . . . . . . . . . . . . . . . . . . . . . . . . . . Up to 17.9 Mpps packet forwarding rate
Port filtering performance (64-byte packets) . . . . . . . . . . . . . . . . . . Wire speed performance; Address database size up to 16k
Data rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Mbps to 10 Gbps
Interface options (support varies by platform type)
Network protocol and standards compatibility
MESU 1800 MESU 1850 MESU 1860 MESU 1880
Models 1800-24T: AC + SFP 1850-12G: AC 1860B: BaseBX 1880S: SFP
Total ports
Built in ports
1800-24T-DC: DC + SFP 1850-12G-DC: DC 1860S: SFP
1800-24T-LX-DC: DC + fixed GE
BaseLX ports 1860V: VDSL2
2 GE uplinks (NNI) + 24 access
ports (UNI)
2 GE uplinks (SFP or LX) + 24
RJ45 10/100BaseTX access
2 GE uplinks + up to 10
access ports
2-4 GE uplinks + 24 access
ports
4 Combo ports (RJ45 2 Combo ports (RJ45
10/100/1000 or GE SFP), with 10/100/1000 or GE SFP) for
2 reserved for uplinks uplinks plus:
1860B: 24 100BaseBX
1860S: 24 100Base SFP
1860V: 24 VDSL2
• 10GBase-XR
• VDSL2
• SFP devices include: SX, TX, LX, BX and CWDM XD, ZX, EX
• XFP devices include: SR, LR, ER, ZR and DWDM
• IEEE 802.1p (Priority Queues)
• IEEE 802.1Q (VLAN Tagging)
• IEEE 802.1z (Gigabit Ethernet)
• IEEE 802.1D (Bridging — in L2 and QinQ modes)
• IEEE 802.1ad (QinQ)
• IEEE 802.1ag (Connectivity Fault Management)
2-4 10GE uplinks + 24 access
ports
2 10GE XFP uplinks + 24 FE or
GE SFP
2 MDA slots for 4-port RJ45 1 MDA slot for 2 combo ports
Optional MDA
10/100/1000, and/or 4-port (RJ45 10/100/1000 or GE SFP) 1 MDA slot for 2 port 10GE
Expansion slots None
GE SFP
for uplinks
XFPs for uplink
NEBS-3 Compliance No No Yes Yes
Operating temperature 0 to 55°C 0 to 55°C -40 to 65°C -40 to 65°C
(32 to 131°F) (32 to 131°F) (-40 to 149°F) (-40 to 149°F)
Power supply Single AC or DC Single AC or DC Dual AC or DC Dual AC or DC
Weight 2.8 kg (6.2 lbs.) 4.7 kg (10.4 lbs.) 1860B: 4.35 kg (9.6 lbs.) 4.3 kg (9.5 lbs.)
1860S: 4.17 kg (9.2 lbs.)
Height (Rack Units) 1U 1U
1860V: 4.86 kg (10.7 lbs.)
1.5U 1.5U
Height 4.4 cm (1.73 in.) 4.4 cm (1.73 in.) 6.67 cm (2.63 in.) 6.67 cm (2.63 in.)
Width 44.1 cm (17.4 in.) 44.1 cm (17.4 in.) 44.0 cm (17.3 in.) 44.0 cm (17.3 in.)
Depth 20.8 cm (8.19 in.) 36.6 cm (14.4 in.) 25.4 cm (10.0 in.) 25.4 cm (10.0 in.)
• 10Base-T/100Base-TX
• 10/100/1000Base-TX
• 100Base-FX/LX/BX/ZX
• 1000Base-SX/LX/BX-10
• IEEE 802.3 10Base-T Ethernet
(twisted-pair copper)
• IEEE 802.3u 100Base-TX Fast Ethernet
(twisted-pair copper)
• ANSI/IEEE802.3 Auto-negotiation
• IEEE 802.3ab 1000Base-T
• IEEE 802.3ae 10G Ethernet
• IEEE 802.3x Flow Control

Table 3. Metro Ethernet Services Unit technical specifications — continued
Category
RFC support
Electrical specifications
Environmental specifications
Safety certification
Electromagnetic emissions and immunity
• RFC 1213 (MIB II)
• RFC 1493 (Bridge MIB)
• RFC 1573 (Interface MIB)
• RFC 1643 (Ethernet MIB)
• RFC 1757 and RFC1271 (RMON): 4 first groups: Alarms, Events, Statistics and History
• RFC 768 User Datagram Protocol (UDP)
• RFC 783 Trivial File Transfer Protocol (TFTP)
• RFC 854 Telnet
• RFC 1112 Internet Group Management Protocol (IGMP) version 1
• RFC 2236 Internet Group Management Protocol (IGMP) version 2
• IGMP MIB (RFC 2833)
• RFC 951 BOOTP
• RFC 2131 BOOTP/DHCP relay
• RFC 1157 (SNMP)
• RFC 1907 (SNMPv2)
• RFC 2865 (RADIUS)
• RFC 2866 (RADIUS accounting)
• AC power supply (100-240V AC, 47-63 Hz universal) available on all platforms;
Dual Redundant and Hot Swappable Options on MESU 1860 and 1880 platforms
• DC dual feed power supply [-40 to -60V DC (48V Nominal)] on all platforms;
Redundant and Hot Swappable Options on MESU 1860 and 1880 platforms
• Operating temperatures: 0 to 55°C on MESU 1800 & 1850;
-40 to 65°C on MESU 1860 and 1880
• Storage temperature -25 to -70°C
• Humidity 5% to 95% non-condensing
• Altitude 3,024 m (10,000 ft.) maximum
• US: UL60950-2000
• Canada: CSA 22.2 #60950-00
• International: IEC 60950/EN 60950
• US: UL 94-V1 flammability requirements for all PC boards
• Mexico: NOM-019
Meets the following standards:
• US: FCC CFR47, Part 15, Subpart B, Class A
• Canada: ICES-0003, Issue 3, Class A
• Australia/New Zealand: AS/NZS 3548: 1995, Class A A1:1997/A2:1997 Class A
• Japan: VCCI-V3/02.04 Class A
• Taiwan: CNS 13438, Class A
• Europe: EN55022: 1998/A1:2000, EN61000-3-2:2000, EN61000-3-3:1995/A1:2001,
CISPR 22-1997/A1:2000 Class A
• EN55024 :1998/A1 :2001
7

In the United States:
Nortel
35 Davis Drive
Research Triangle Park, NC 27709 USA
In Canada:
Nortel
195 The West Mall
Toronto, Ontario M9C 5K1 Canada
In Caribbean and Latin America:
Nortel
1500 Concorde Terrace
Sunrise, FL 33323 USA
Nortel is a recognized leader in delivering communications capabilities that make the
promise of Business Made Simple a reality for our customers. Our next-generation
tech nologies, for both service provider and enterprise networks, support multimedia
and business-critical applications. Nortel’s technologies are designed to help eliminate
today’s barriers to efficiency, speed and performance by simplifying networks and
connecting people to the information they need, when they need it. Nortel does business
in more than 150 countries around the world. For more information, visit Nortel
on the Web at www.nortel.com. For the latest Nortel news, visit www.nortel.com/news.
For more information, contact your Nortel representative, or call 1-800-4 NORTEL
or 1-800-466-7835 from anywhere in North America.
Nortel, the Nortel logo, Nortel Business Made Simple and the Globemark are trademarks
of Nortel Networks. All other trademarks are the property of their owners.
Copyright © 2008 Nortel Networks. All rights reserved. Information in this document
is subject to change without notice. Nortel assumes no responsibility for any errors
that may appear in this document.
NN105541-080608
In Europe:
Nortel
Maidenhead Office Park, Westacott Way
Maidenhead Berkshire SL6 3QH UK
Email: euroinfo@nortel.com
In Asia:
Nortel
United Square
101 Thomson Road
Singapore 307591
Phone: (65) 6287 2877
BUSINESS MADE SIMPLE