Specifications

B-28 Cisco MGX 8220 Reference, Release 4.1
CESM-4T1/E1 Specification
CESM-4T1/E1 Specification
NoteThe CESM-4T1/E1 specification is the same as the FRSM-4T1/4E1 specification except as
shown below.
Service Interface (T1/E1)
Virtual Circuits
Synchronization: Transmitter is synchronized to the shelf (Stratum traceable)
Line Framing: None
Channel Configuration:
Number of CBR Interfaces: 4
Cell Delay Variation (CDV): Configurable by setting reassembly buffer depth to a maximum
of 250 msec. CDV = 1/2 buffer depth
Channels (Endpoints): One per physical port
Counters: MIB Name
AAL1:
Number of lost SAR-PDUs
Number of buffer overflow events
Number of buffer underflow events
Number of SAR-PDU’s with header error
Number of SAR-PDU’s received out of sequence
Number of cells played out to T1/E1 port
Number of cell generated from T1/E1 port
Number of bytes discarded due to shelf alarm,
from port
Number of all 1’s cells inserted during buffer
underflow
Number of bytes discarded due to egress overflow
cesLostCells
cesBufOverflows
cesBufUnderflows
cesHdrErrs
cesCellSeqMismatchCnt
cesReassCells
cesGenCells
cesIngrDiscardedBytes
cesUflowInsCells
cesOflowDropBytes
Diagnostic: Egress buffer depth (per port)
Alarms: MIB Name
T1/E1 Port: Red, Loss of Signal (LOS)
Blue, Alarm Indication Signal (AIS)
LineAlarmState—bit 5 set
LineAlarmState—bit 2, set
and cesChanState = 3
Line Code Violation (LVC) LineStatisticalAlarmState
SAR Port: