| Description | A table that contains the latest occurrence of
the following syntactical SIP L3PDU errors:
- Destination Address Field Format Error,
The following pertains to the 60 least significant
bits of the 64 bit address field. The 60 bits
contained in the address subfield can be used to
represent addresses up to 15 decimal digits. Each
decimal digit shall be encoded into four bits
using Binary Coded Decimal (BCD), with the most
significant digit occurring left-most. If not all
15 digits are required, then the remainder of this
field shall be padded on the right with bits set
to one. An error is considered to have occurred:
a). if the first four bits of the address
subfield are not BCD, OR b). if the first four
bits of the address subfield are populated with
the country code value 0001, AND the 40 bits which
follow are not Binary Coded Decimal (BCD) encoded
values of the 10 digit addresses, OR the remaining
16 least significant bits are not populated with
1's, OR c). if the address subfield is not
correct according to another numbering plan which
is dependent upon the carrier assigning the
numbers and offering SMDS.
- Source Address Field Format Error,
The description of this parameter is the same as
the description of the Destination Address Field
Format Error.
- Invalid BAsize Field Value,
An error is considered to have occurred when the
BAsize field of an SIP L3PDU contains a value less
that 32, greater than 9220 octets without the
CRC32 field present, greater than 9224 octets with
the CRC32 field present, or not equal to a
multiple of 4 octets,
- Invalid Header Extension Length Field Value,
An error is considered to have occurred when the
Header Extension Length field value is not equal
3.
- Invalid Header Extension - Element Length,
An error is considered to have occurred when the
Header Extension - Element Length is greater than
12.
- Invalid Header Extension - Version Element
Position, Length, or Value,
An error is considered to have occurred when a
Version element with Length=3, Type=0, and Value=1
does not appear first within the Header Extension,
or an element Type=0 appears somewhere other than
within the first three octets in the Header
Extension.
- Invalid Header Extension - Carrier Selection
Element Position, Length, Value or Format,
An error is considered to have occurred when a
Carrier Selection element does not appear second
within the Header Extension, if the Element Type
does not equal 1, the Element Length does not
equal 4, 6, or 8, the Element Value field is not
four BCD encoded decimal digits used in specifying
the Carrier Identification Code (CIC), or the
identified CIC code is invalid.
- Header Extension PAD Error
An error is considered to have occurred when the
Header Extension PAD is 9 octets in length, or if
the Header Extension PAD is greater than zero
octets in length and the Header Extension PAD does
not follow all Header Extension elements or does
not begin with at least one octet of all zeros.
- BEtag Mismatch Error,
An error is considered to have occurred when the
Beginning-End Tags in the SIP L3PDU header and
trailer are not equal.
- BAsize Field not equal to Length Field Error,
An error is considered to have occurred when the
value of the BAsize Field does not equal the value
of the Length Field.
- Incorrect Length Error, and
An error is considered to have occurred when the
the Length field value is not equal to the portion
of the SIP L3PDU which extends from the
Destination Address field up to and including the
CRC32 field (if present) or up to and including
the PAD field (if the CRC32 field is not present).
As an optional check, an error is considered to
have occurred when the length of a partially
received SIP L3PDU exceeds the BAsize value.
- MRI Timeout Error.
An error is considered to have occurred when the
elapsed time between receipt of BOM and
corresponding EOM exceeds the value of the MRI
(Message Receive Interval) for a particular
transport signal format.
An entry is indexed by interface number and error
type, and contains Source Address, Destination
Address and a timestamp. All these errors are
counted in the sipL3Errors counter. When
sipL3PDUErrorTimeStamp is equal to zero, the
SipL3PDUErrorEntry does not contain any valid
information. |