Specifications

Installation and Operation Manual Chapter 6 Troubleshooting and Diagnostics
Vmux-210 Ver. 1.1 Frequently Asked Questions 6-21
Table 6-11. Ping Parameters
Parameter Description Possible Values/
Reference
IP Address Host IP address Default: 0.0.0.0
Number Of Pings Desired number of pings 1..10
Send Activates the ping test
Displaying the Active Tests
The Vmux-210 management software allows you to display tone injection and
loopbacks currently in progress.
 To display all active tests:
• From the Main Menu, select Diagnostics > Display Active tests.
Vmux-210 displays a list of active tests, specifying the port being tested.
6.6 Frequently Asked Questions
Q: What is the meaning of BPV error, and what can be the reason for such an
error?
A: A BPV error event on AMI-coded signal is the occurrence of a pulse of the
same polarity as the previous pulse. A BPV error event for a B8ZS- or
HDB3-coded signal is the occurrence of a pulse of the same polarity as the
previous pulse without being a part of the zero substitution code.
A normal DS-1 signal uses Alternate Mark Inversion as the line code.
Q: Can the Vmux-210 Bundle Coder be changed remotely via Telnet? Will I have
downtime while implementing this change?
A: Yes, the change can be done remotely via Telnet without any problem,
although the bundle will be temporarily down for the period of change. The
management connection in case of inband management is done over the
main link and the bundles have no influence on this connection.
Q: I would like to use Vmux-210 over low quality TDM uplink (10
3
- 10
5
); will I
have a service problem using it?
A: The Vmux-210 application will work when using a low quality TDM uplink, but
we cannot promise that service will not be affected. In case of a link of 10
3
,
there are two possible scenarios:
 The bundle will go down (depending on the setting of the connectivity
parameters). Then there will be no service available (AIS will be generated
on both sides) until the Bundle is re-established.