ZyXEL Communications P-2900-4HB - Manual (Page 32)

Chapter 3 Status
P-2900-4HB User’s Guide
32
3.4 The Cable Modem Status Screen
This section describes the information in the Cable Modem Status screen.
3.4.1 What You Need to Know About Cable Modem Status
Downstream/Upstream Channels
In order to establish a successful connection with the cable provider’s network,
the ZyXEL Device must first find and lock onto two frequencies for communication
with the cable operator’s network. A frequency is also called a channel.
Communication with the cable operator’s network cannot proceed until the ZyXEL
Device locks specific channels for sending and receiving data.
Auto-Provisioning
During the provisioning step, your ZyXEL Device passes through several
negotiation stages with the CMTS, as illustrated in the following figure. The ZyXEL
Device has to obtain an IP address, set the system’s time/date and download the
configuration file. If any step fails, the “Waiting for...” message will appear in the
CM Status screen.
Figure 11 Negotiation Stages with the CMTS
Downloading the
Configuration File
via TFTP
Getting an IP from
the DHCP Server
Synchronizing with
the Time Server
Operational
Waiting for TFTP Waiting for DHCP Offer
Waiting for DHCP Response
Waiting for Time Server
or
FAIL FAIL FAIL