Chapter 29 - Troubleshooting
General Operation Issues
280
Mediatrix 1204
D
ESCRIPTION
: I changed the IP address of my unit, but I can’t reach the DHCP server anymore.
P
OSSIBLE
C
AUSE
: A subnet mask is used to determine to which subnet an IP address belongs. An IP
address has two components, the network address and the host address. For example, let’s consider
the IP address 192.168.0.1. Assuming this is part of a Class B network, the first two numbers (192.168)
represent the Class B network address, and the second two numbers (0.1) identify a particular host on
this network.
Let’s say you have the following information:
•
Mediatrix 1204 IP address: 192.168.0.1
•
Subnet Mask: 255.255.0.0 (Class B)
•
DHCP Server IP address: 192.168.0.20
If you happen to change the Mediatrix 1204 IP address to 192.169.0.1, for instance, the subnet mask
is still valid, but cannot reach your DHCP server anymore. Refer to subnet mask documentation for
more details.
D
ESCRIPTION
: Unable to reach the Mediatrix 1204 after changing the Ethernet speed at run-time.
P
OSSIBLE
C
AUSE
: Some hubs cannot adapt completely their port speed at run-time.
S
OLUTION
: Always restart the Mediatrix 1204 for the new setting to take effect. See
for more details.
D
ESCRIPTION
: Setting the MIB variable
voiceIfAdaptativeJitterBufferEnable
to
disable
has no effect.
P
OSSIBLE
C
AUSE
: You cannot disable the adaptative jitter buffer on the Mediatrix 1204.
S
OLUTION
: If you set the
voiceIfTargetJitterBufferLength
and
voiceIfMaxJitterBufferLength
variables to
the same value, you will have a non-adaptative jitter buffer. See
“Adaptative Jitter Buffer” on page 209
for more details.
D
ESCRIPTION
: I have set the analog lines type of the Mediatrix 1204 to Ground StartMediatrix 1204, but it does
not work.
P
OSSIBLE
C
AUSE
: The cables you are using might cause the problem.
S
OLUTION
: Check that:
•
The cable is a straight cable. See
for more details.
•
If the wiring closet uses cross-over cables, the connection will fail. The alternative is to
switch from a straight to a cross-over cable and test again.
•
The pin configuration of the SCN connectors is:
Table 180:
Ground Start Pin Configuration
Pin
Wire Trunk
3
Ring
4
Tip
Содержание Mediatrix 1204
Страница 6: ...Mediatrix Telecom a Division of Media5 Corporation Reference Manual...
Страница 26: ...Preface About this Manual End User Technical Support xxvi Mediatrix 1204...
Страница 27: ...Installation and Web Page Configuration...
Страница 28: ...Page Left Intentionally Blank...
Страница 50: ...Chapter 1 Installation Verifying the Installation 24 Mediatrix 1204...
Страница 98: ...Chapter 4 Web Interface SIP Parameters SIP Authentication 72 Mediatrix 1204...
Страница 127: ...SNMP Configuration...
Страница 128: ...Page Left Intentionally Blank...
Страница 162: ...Chapter 8 IP Address and Network Configuration Ethernet Connection Speed 136 Mediatrix 1204...
Страница 170: ...Chapter 9 SIP Servers Presence Compositor Server 144 Mediatrix 1204...
Страница 174: ...Chapter 10 DNS SRV Configuration DNS SRV Oriented Settings 148 Mediatrix 1204...
Страница 196: ...Chapter 12 Configuration File Download Configuration File Example 170 Mediatrix 1204...
Страница 220: ...Chapter 14 Gateway Configuration Detecting a Far End Disconnect 194 Mediatrix 1204...
Страница 240: ...Chapter 16 Voice Transmissions User Gain 214 Mediatrix 1204...
Страница 288: ...Chapter 23 Telephony Attributes Delayed Hot Line 262 Mediatrix 1204...
Страница 294: ...Chapter 25 Quality of Service QoS VLAN 268 Mediatrix 1204...
Страница 298: ...Chapter 26 Syslog Daemon Syslog Daemon Configuration 272 Mediatrix 1204...
Страница 302: ...Chapter 27 Statistics RTP Statistics 276 Mediatrix 1204...
Страница 319: ...Appendices...
Страница 320: ...Page Left Intentionally Blank...
Страница 332: ...Appendix B Standard Hardware Information Warranty 306 Mediatrix 1204...
Страница 336: ...Appendix C Cabling Considerations RJ 11 Telephone Cable 310 Mediatrix 1204...
Страница 372: ...Appendix E Glossary Wide Area Network WAN 346 Mediatrix 1204...
Страница 390: ...Index W 364 Mediatrix 1204...