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SDH Tab
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downstream equipment) to be tested to verify if (1) it can
detect incoming errors, and (2) then conduct performance
monitoring such as error counts and rates.
B2 Error Generates a BIP-8 error over the Multiplex Section layer. Bits
in the B2 byte are toggled to create an error.
This type of simulation allows an NE (in this case, the
downstream equipment) to be tested to verify if (1) it can
detect incoming errors, and (2) then conduct performance
monitoring such as error counts and rates.
MS-REI Generates a Remote Error Indicator over the Multiplex
Section layer. An MS-REI is a count of B2 errors received at
the far end.
When the system transmits this error, it simulates a
downstream NE sending an error count back to the source of
its incoming SDH signal. The system uses the M1 byte of the
MSOH to transmit the error count. This type of simulation
allows an NE (in this case, the upstream equipment) to be
tested to verify if (1) it can detect incoming remote errors,
and (2) then conduct performance monitoring such as error
counts and rates.
(This type of error was formerly called a Line Far End Block
Error - FEBE-L.)
B3 Error Generates a BIP-8 error over the Higher-Order Path layer.
Bits in the B3 byte are toggled to create an error.
This type of simulation allows an NE (in this case, the
downstream equipment) to be tested to verify if (1) it can
detect incoming errors, and (2) then conduct performance
monitoring such as error counts and rates.
HP-REI Generates a Remote Error Indicator over the Higher-Order
Path layer. An HP-REI is a count of B3 errors received at the
far end.
When the system transmits this error, it simulates an NE
sending an error count back to the source of its incoming
SDH signal. The system uses the G1 byte of the HPOH to
transmit the error count. This type of simulation allows an NE
(in this case, the upstream equipment) to be tested to verify if
(1) it can detect incoming remote errors, and (2) then
conduct performance monitoring such as error counts and
MPA_e_manual_D07-00-129P_RevA00