The Metrobility® Difference
Flexible, user-selectable, multi-
level management options
Intelligent management access
control makes the device
impervious to denial of service
Loopback testing:
Copper loopback
OAM optical loopback
Patent-pending Logical Services
Loopback enable end-to-end
service level veri cation
Extensions to 802.3ah OAM
Real-time statistics to enable
Quality of Line monitoring
Remote real-time monitoring
of optical power budgets
Copper Line Quality verifies
customer-facing link
History database of power,
temperature, optical budgets
Full signal retiming, reshaping,
and reamplification (3Rs)
NEBS Level 3 certified
Product Highlights
Supported distances up to 100km
Line rate forwarding
Copper port supports 10/100Mbps
auto-negotiation
Secure console port provides local
access for configuration
Radiance 10/100Mbps
Services Line Cards
Metrobility's Radiance Services Line Card
provides an intelligent optical Ethernet demarcation
point for service providers who are deploying Ethernet
in the First Mile. As a carrier-class device, the Services
Line Card enables multi-user, multi-service deliv-
ery across a provisioning framework. Applications
are prioritized over different traffic-engineered
paths; multi-level operations, administration and
maintenance (OAM) is used to measure and ensure
provisioned SLAs; and embedded security controls
ensure protection against denial-of-service attacks.
The Radiance Ethernet Services Line Card offers
multiple management schemes to provide service
providers with a choice of direct internet-standard
management using SNMP or IEEE 802.3ah, or a
more robust, secure, scalable and flexible proxy-
based management through Metrobility's NetBeacon
Element Manager.
Transport OAM via IEEE 802.3ah
The IEEE 802.3ah OAM protocol is used to
provide proactive health and status information
on individual links. Transport OAM management
features provide in-service loopbacks for transpar-
ent service monitoring, MIB statistics, errored frame
events, and "Dying Gasp" capabilities.
Metrobility offers extensions to the IEEE stan-
dard to provide monitoring of optical amplitude, line
card voltage and power, equipment temperature,
rate limiting and RMON statistics. The Services Line
Card will respond to these vendor-specific requests
from another 802.3ah device that would proxy to an
EMS System. Since the device has no IP address, the
device is less vulnerable to denial of service attacks
than traditional IP-based management such as PING
and SNMP and prevents against the propogation of
management IP addresses.
Interconnectivity OAM via SNMP and PING
Metrobility utilizes standards-based frameworks
and protocols to provision and manage the E-Services
NID. This approach enables service providers to use
any off-the-shelf management system to manage the
NID as an independent network element with its own
IP address by using SNMP, Telnet/CLI, and IP PING.
The E-Services NID may be assigned an IP
address, or it may be obtained dynamically through
DHCP or using 'zeroconf.' A set of MIB-II and
Metrobility-specific managed objects are accessible
by and available to any SNMP-based management
stations over UDP/IP.
Services OAM
Advanced Layer 2 networking allows service
providers total flexibility in the deployment,
provisioning and delivery of Ethernet services. With
configurable traffic transparency, including single
and double VLAN-tagged Ethernet frames, support
for four service classes, and dynamic bandwidth
allocation of ingress and egress traffic, the E-Services
NID offers both traffic control and security at the
customer edge.
Metrobility offers the ability to verify service
delivery by sending a patent-pending, service-spe-
cific loopback called the logical services loopback
(LSL) which loops back specific frames based on a
well-known destination MAC address.
With the logical services loopback, service pro-
viders can monitor devices for reachability, class of
service agreements, round trip delay and delay varia-
tion across VLANs and different service classes.
The embedded software is field-upgradable to
ensure support of new features as standards evolve.
Remote downloads may be accomplished via TFTP
and CLI over Telnet allows remote provisioning.
• Optical Ehternet Intelligent Demarcation
• Advanced VLAN Aware Bridging
• Q-in-Q VLAN Tagging
• Traffic Prioritization
• Bandwidth Provisioning and Rate Limiting
• Patent-pending Logical Services Loopback
• Copper Line Quality
• SFP Optics Support CWDM and BWDM Options
Managed Network Interface Device (NID)
for Ethernet in the First Mile (EFM)
The R821Services Line Card is supported
in Metrobility's R5000, R1000, R400 and
R200 (shown) platforms.
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