Cisco Cisco ONS 15454 M2 Multiservice Transport Platform (MSTP)
Regenerator Section Errored Block (RS-EB) indicates that one
or more bits are in error within a block.
or more bits are in error within a block.
RS-EB
Regenerator Section Errored Second (RS-ES) is a one-second
period with one or more errored blocks or at least one defect.
period with one or more errored blocks or at least one defect.
RS-ES
Regenerator Section Errored Second Ratio (RS-ESR) is the
ratio of errored seconds to total seconds in available time during
a fixed measurement interval.
ratio of errored seconds to total seconds in available time during
a fixed measurement interval.
RS-ESR
Regenerator Section Severely Errored Second (RS-SES) is a
one-second period which contains 30 percent or more errored
blocks or at least one defect. SES is a subset of ES.
one-second period which contains 30 percent or more errored
blocks or at least one defect. SES is a subset of ES.
RS-SES
Regenerator Section Severely Errored Second Ratio (RS-SESR)
is the ratio of SES to total seconds in available time during a
fixed measurement interval.
is the ratio of SES to total seconds in available time during a
fixed measurement interval.
RS-SESR
Regenerator Section Unavailable Second (RS-UAS) is a count
of the seconds when the regenerator section was unavailable.
A section becomes unavailable when ten consecutive seconds
occur that qualify as RS-UASs, and it continues to be
unavailable until ten consecutive seconds occur that do not
qualify as RS-UASs.
of the seconds when the regenerator section was unavailable.
A section becomes unavailable when ten consecutive seconds
occur that qualify as RS-UASs, and it continues to be
unavailable until ten consecutive seconds occur that do not
qualify as RS-UASs.
RS-UAS
Pointer Justification Count Performance Monitoring
For the MultiService Transport Platform (MSTP), only the MXP_2.5G_10G card uses pointer justification counts. Pointers are used
to compensate for frequency and phase variations. Pointer justification counts indicate timing errors on networks. When a network
is out of synchronization, jitter and wander occur on the transported signal. Excessive wander can cause terminating equipment to
slip.
to compensate for frequency and phase variations. Pointer justification counts indicate timing errors on networks. When a network
is out of synchronization, jitter and wander occur on the transported signal. Excessive wander can cause terminating equipment to
slip.
Slips cause different effects in service. Voice service has intermittent audible clicks. Compressed voice technology has short transmission
errors or dropped calls. Fax machines lose scanned lines or experience dropped calls. Digital video transmission has distorted pictures
or frozen frames. Encryption service loses the encryption key, causing data to be transmitted again.
errors or dropped calls. Fax machines lose scanned lines or experience dropped calls. Digital video transmission has distorted pictures
or frozen frames. Encryption service loses the encryption key, causing data to be transmitted again.
For ONS 15454 ANSI nodes, pointers provide a way to align the phase variations in STS and VT payloads. The STS payload pointer
is located in the H1 and H2 bytes of the line overhead. Clocking differences are measured by the offset in bytes from the pointer to
the first byte of the STS synchronous payload envelope (SPE) called the J1 byte. Clocking differences that exceed the normal range
of 0 to 782 can cause data loss.
is located in the H1 and H2 bytes of the line overhead. Clocking differences are measured by the offset in bytes from the pointer to
the first byte of the STS synchronous payload envelope (SPE) called the J1 byte. Clocking differences that exceed the normal range
of 0 to 782 can cause data loss.
For ONS 15454 ETSI nodes, pointers provide a way to align the phase variations in VC4 payloads. The VC4 payload pointer is
located in the H1 and H2 bytes of the AU pointers section and is a count of the number of bytes the VC4 path overhead (POH) J1
byte is away from the H3 byte, not including the section overhead bytes. Clocking differences are measured by the offset in bytes
from the pointer to the first byte of the VC4 POH called the J1 byte. Clocking differences that exceed the normal range of 0 to 782
can cause data loss.
located in the H1 and H2 bytes of the AU pointers section and is a count of the number of bytes the VC4 path overhead (POH) J1
byte is away from the H3 byte, not including the section overhead bytes. Clocking differences are measured by the offset in bytes
from the pointer to the first byte of the VC4 POH called the J1 byte. Clocking differences that exceed the normal range of 0 to 782
can cause data loss.
There are positive (PPJC) and negative (NPJC) pointer justification count parameters. PPJC is a count of path-detected (PPJC-PDET-P)
or path-generated (PPJC-PGEN-P) positive pointer justifications. NPJC is a count of path-detected (NPJC-PDET-P) or path-generated
(NPJC-PGEN-P) negative pointer justifications depending on the specific PM name. PJCDIFF is the absolute value of the difference
or path-generated (PPJC-PGEN-P) positive pointer justifications. NPJC is a count of path-detected (NPJC-PDET-P) or path-generated
(NPJC-PGEN-P) negative pointer justifications depending on the specific PM name. PJCDIFF is the absolute value of the difference
50