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HST-3000 ETHERNET SIM
3
Multiple Streams Option
Many service providers are beginning to deploy different classes of service in order
to offer tiered options to customers or to prioritize traffic to effectively manage
triple-play networks. This leads to a new type of problem where the latency and loss
may be acceptable for regular traffic, but the higher priority traffic does not meet its
required SLA.
In order to test these new networks, technicians can use the Multiple Streams option
for the HST-3000 to oversubscribe the switch and determine if the various SLAs are
met. This is accomplished by using two or three different traffic streams of differing
priorities and sending more traffic through the switch than it can handle. For
example, a technician can attempt to send 1000 Mb/s of traffic through an OC-3
SONET ring. The switch should drop the lower priority traffic, but it should allow
all of the higher priority traffic to pass through to the far end where another HST-
3000 is connected to the receiver.
VoIP Option
The HST-3000 with the VoIP option can validate VoIP service connectivity, feature
availability, and voice quality. In addition, it provides a comprehensive set of
features, including signaling, IP ping, packet statistic, and traceroute analysis in
order to identify, diagnose, and sectionalize VoIP network and equipment problems.
IP Video Option
The HST-3000 IP Video option is a video test suite specifically designed to meet the
needs of the field technician who is responsible for the provisioning or turn-up of
IP Video services that carry video program content over an Access network. Test
access includes the 2-wire ADSL interface or the Ethernet 10/100 interface at the
DSL modem or FTTx residential gateway. The test suite includes set top box (STB)
emulation with signaling support for broadcast video (IGMP) and VOD (RTSP).
Video transport stream analysis is provided as well as video quality of service
measurements, including packet jitter, packet loss, IGMP latency, and program
clock reference (PCR) jitter analysis.
1G Ethernet
1G Ethernet
OC-3/STM-1
MUX
MUX
HST-3000
HST-3000
Figure 2. Class-of-service testing using the HST-3000 Ethernet SIM with the Multiple Streams option
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