OAM F5 loopback support.
VPI/VCI scan returns list of available VPI/VCI.
ATM PING (end to end or segmented).
ATM F4 and F5 OAM cells to check connectivity between various network points
Note:
ATM versus IP DSLAMs
ATM DSLAM:
When ADSL services first began, ATM was the main high-speed data backbone transport
used in telecommunications networks. As a result, DSLAMs with an ATM uplink or backplane were
developed to enable the ADSL link to connect seamlessly into the whole ATM network. The 'last mile' ATM
link over the ADSL line was merely an extended part of the telco’s ATM network.
IP DSLAM:
More recently, Ethernet bandwidth capabilities have increased significantly and it is becoming a
cheaper and more popular transport protocol choice for Metro Area Networks. In installations where
subscribers are using DSL to access a Metro Area Network, it makes sense for the DSLAMs to have
Ethernet uplink ports. DSLAMs with Ethernet uplink ports are known as IP DSLAMS. The market is rapidly
moving towards IP DSLAMs because they are cheaper to implement, scale better and are easier to manage
than ATM DSLAMs.
5.3 IP Function
An IP test will verify if the whole DSL system is configured properly and connected to the Internet. Depending on the IP options
purchased, the following tests are possible;
Ping Test:
PING is a popular computer network tool used to test whether a particular host is reachable across an IP
network. Sending an “echo request” or ICMP (Internet Control Message Protocol) to the target host and listening for “echo
response” replies. PING estimates the round-trip time, in milliseconds, and records any packet loss. The destination address
can be in IP address or URL format.
Trace Route:
To find the route to the destination IP or URL. Often used to identify routing problems and unreachable
destinations. All the remote IP addresses and their response times are displayed indicating possible network congestion
points.
FTP Test:
Using the File Transfer Protocol, verify the actual throughput of upstream or downstream data rate by sending
or receiving files with known size
Web Test/ Web Browser:
To verify internet is properly connected by the service point. Allows user to perform work force
management related tasks.
VoIP:
Refer to Common Features manual
IPTV:
Refer to Common Features manual
5.4 Pass Through Function
In Pass Through mode, the BX100A/V emulates a customer's modem by synchronizing with the DSLAM, making data analysis
(Ping, Traceroute, HTTP/FTP), Web surfing via a PC, IPTV STB emulation, and VoIP analysis possible. The unit is connected to
the DSL line via the RJ11 or RJ45 interface and to a PC via the Ethernet 10/100Base-T port. Used in this "transparent" mode, this
test helps to verify;
The customer’s modem or router is working correctly
The IPTV quality of experience (QOE) by monitoring joins/leave request, zapping time, jitter and delay
Sufficient bandwidth is available to deliver Triple-Play services
VoIP call flow, jitter, and delay
5.5 Bitstogram - Option for all BX100A/V Models
The Bitstogram feature measures the bits per tone distribution the modem transmits to deliver the provisioned data rate. The
number of bits assigned per tone is displayed in both graphic and tabular formats. The Bitstogram feature is useful to troubleshoot
interference problems, to monitor bit swapping and Seamless Rate Adaptation (SRA) occurring over a period of time.
BX100A/V e-Manual D07-00-001 Rev E01
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