| OID | 1.3.6.1.4.1.351.110.4.4.1.1.1.1.11 |
| Module | CISCO-MGX82XX-DSX3-MIB (CISCO) |
| Nom | dsx3LineBERTPattern |
| Acces | readwrite |
| Status | current |
| Description | This object defines the test bit pattern to be
used for BERT.
The possible values are :
Repetitive Patterns
allZero(1): All Zeroes(Continuous spaces). This is
repeating pattern of zeros(...000...).
The use of this pattern is to test and verify
that the ones density policing mechanism is
functioning properly. This pattern must be
used in circuits optioned for B8ZS.
allOnes(2): All Ones(Continuous Marks). This is repeating
pattern of ones(...1111...). This provides
testing of maximum power level requirements.
The all one pattern test causes the repeater
to consume the maximum amount of power.
If there is insufficient DC span power then the
repeater may begin to fail.
Typically this pattern is used for a simple
continuity check. It may also be used to detect
the presence of unwanted loop in the network.
alternateOneZero(3): Alternate one/zero pattern(..1010..). This
pattern produces a 50% ones density. It is
used to stress the repeater's DC power
consumption.
doubleOneZero(4): Double alternate one/zero(..1100..).
userOneWord(5),
userTwoWords(6),
userThreeWords(7),
userFourWords(8),
pattern2p15minus1(9) :
This is the 2^15-1(32767 bit length)
pattern as specified in ITU O.151.
It has the maximum of 15(inverted) sequential zeros.
This sequence is primarily intended for
error and jitter measurements at bit
rates of 1544, 2048, 6312, 8448,
32064 and 44736 kbit/s.
pattern2p20minus1(10):
This is the 2^20-1(1048575 bits in length)
pattern specified in ITU O.153.It has
the maximum of 19(non-inverted) sequential
zeros. This pattern is primarily intended
for error measurements at bit rates up to
73kbit/s. This pattern stresses the
equalization and timing recovery circuitry
of line repeaters.
pattern2p23minus1(11):
This is the 2^23-1(1048575 bits in length) pattern. |
| Syntaxe | Enumeration (1-allZero, 2-allOnes, 3-alternateOneZero, 4-doubleOneZero, 5-userOneWord, 6-userTwoWords, 7-userThreeWords, 8-userFourWords, 9-pattern2p15minus1, 10-pattern2p20minus1, 11-pattern2p23minus1) |