Filter
Top Products
6
Nortel’s Metro Ethernet Manager provides
extensive capabilities for performance
monitoring, service assurance, SLA
measurement and troubleshooting. This
advanced management toolkit allows
scheduling of periodic tests and genera-
tion of a history of the test results to
validate VPN endpoints. Tests can
include reachability/connectivity (uptime),
performance monitoring (e.g., round-
trip delay) and failure indications (packet
loss). These are critical to measuring and
validating customers’ SLAs. This capa-
bility allows service providers to detect
problems with the service before the
customer notices the service degrada-
tion. These tools also allow the service
provider to troubleshoot and isolate any
problem quickly and methodically.
This operational simplicity at the service
level enables significant operational
savings.
Ethernet for Video Services
Recent trends in access and metro networks indicate that end
users, be they business or residential, are using more and more of
the network capacity available to them. The root cause for this
significant increase in bandwidth usage is almost always attribut-
able to some form of video application.
Such services require that the network support efficient distribu-
tion of video content to a large audience across an entire metro or
regional area. These traffic patterns drive a hub-and-spoke archi-
tecture in which a “hub” node directs the required video streams
to the appropriate “spokes.” With support for a “Dual Hub E-TREE
service” on Metro Ethernet Routing Switch 8600 and Ethernet
Services Units (18xx family), Nortel’s carrier Ethernet solution
provides a high-performance video backhaul transport to end users
across the access and aggregation networks to provider hub sites
where services are instantiated. With the ability to direct broadcast
traffic to only the appropriate network elements as needed, the
Metro Ethernet Routing Switch 8600 can connect to more than one
hub, and thus provide redundancy or load-balancing. See Figure 2.
Metro ESUs support Internet Group Management Protocol (IGMP)
processing and snooping
—
the de-facto standard for joining and
leaving multicast groups. This helps optimize the delivery of broad-
cast traffic in the access network for maximum network efficiency.
Triple play
service platforms
Figure 2. Triple play services implementation