Technical information

Cuda 12000 IP Access Switch CudaView Administration Guide
Configuring MAC Interfaces 487
Table 18-2 .Description of MAC Parameters Window
Parameter Description
Shared Key Shared authentication string between CMTS and the
provisioning server. Choose the Hex or ASCII option to
enter the value in hexidecimal or ASCII format.
Note: The CMTS Shared Key value must match the
Shared Key value used for Provisioning.
CMTS Admission
Control
Enable Admission Control to perform the following
functions:
Allocate HFC interface bandwidth to services flows,
and prevents admission of flows when bandwidth is
unavailable.
Set aside bandwidth for unsolicited grant service (UGS)
service flows and UGS with activity detection (UGS/AD)
service flows, which are used to transmit voice traffic.
By default, Admission Control is disabled.
Sync Interval
(millisec)
Sets the time interval between the CMTS transmission of
SYNC messages. By default, the SYNC message is sent by
the MAC hardware every 5 milliseconds. Acceptable
values are 1 to 200 milliseconds.
UCD Interval
(millisec)
Sets the time interval between CMTS transmission of
Upstream Channel Descriptor for each Upstream
Channel. By default, the UCD is sent every 2000
milliseconds. Acceptable values are 1 to 2000
milliseconds.
Insert Interval
(centisec)
Specifies the interval between CMTS transmission of
Initial Maintenance (IM) intervals. This limits the amount
of time during which cable modems can request an
upstream frequency from the CMTS and join the network
for the first time. By default, the automatic setting is
configured at 10 centiseconds. Acceptable values are 5 to
200 centiseconds.
Invited Ranging
Attempts
Specifies the maximum number of attempts for the CMTS
to attempt ranging a modem as of tolerance or not
responding. A value of zero means the system should
attempt to range forever. By default, attempts are sent
every 16 attempts per ranging period as defined by the
Periodic Ranging Timer.