ZyXEL Communications P-974H - V3.70, Manual

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Chapter 3 Status
P-974H/HW Series User’s Guide
41
ToD request
sent - No
Response
received Warning Your ZyXEL Device sent a request to the time-of-day (ToD) server
specified by the DHCP server, but it did not receive a reply within the
specified timeout period. Your ZyXEL Device defaults to setting its
onboard clock to midnight on January 1, 1970. Your ZyXEL Device
can now proceed with the registration process without receiving a
ToD response, but will continue trying to contact the ToD server
every 5 minutes until it receives a valid response.
ToD Response
received -
Invalid data
format Warning Your ZyXEL Device received a reply from the ToD server that was
specified by the DHCP server. The reply from the ToD server was
either an empty datagram or it contained invalid data (the ToD
server should send a reply that contains only one 32-bit number that
indicates the number of seconds since midnight on January 1, 1900).
Please refer to RFC 868, Time Protocol for additional information.
The DOCSIS specifications do not allow the use of the Network Time
Protocol (NTP) or Simple Network Time Protocol (SNTP) ToD servers
to set your ZyXEL Device’s system time.
UCC- REQ
received with
invalid or out of
range US
channel ID Error Your ZyXEL Device has received an Upstream Channel Change
Request (UCC-REQ) message from your cable operator’s CMTS that
contains an upstream channel ID that is either invalid or out of
range.
UCC- REQ
received unable
to send UCC-
RSP, no TX
opportunity Error Your ZyXEL Device has received an Upstream Channel Change
Request (UCC-REQ) message from your cable operator’s CMTS, but
could not reply with an UCC Response message (UCC-RSP) because
it could not obtain a transmit timeslot.
US channel wide
parameters not
set before Burst
Descriptors Critical Your ZyXEL Device has received an Upstream Channel Descriptor
(UCD) message from the CMTS, but it did not set the channel and
symbol rate parameters before beginning the set of TLVs (Type
Length Value) that specify the burst descriptors for the upstream
channel. TLVs are an encoding for three fields: the first field is the
type of element, the second field is the length of the element, and
the third filed is the value of the element.
UCD & SYNC
valid - NO MAPS
for this channel Critical Your ZyXEL Device has received valid Upstream Channel Descriptor
(UCD) and SYNC messages from the CMTS, but the upstream
channel that is specified in the UCD does not offer your ZyXEL
Device any MAP (one slot of the Time Division Multiplexing) minislots
in which to transmit.
Table 9 Event Log: Log Description (continued)
LOG NAME SEVERITY DESCRIPTION