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Ethernet Card Software Feature and Configuration Guide, R7.2
January 2009
Chapter 25 CE-1000-4 Ethernet Operation
CE-1000-4 Loopback, J1 Path Trace, and SONET/SDH Alarms
The user can provision framing on the CE-1000-4 as either the default frame-mapped generi c framing
procedure framing (GFP-F) or high-level data link control (HDLC) framing.
With GFP-F framing, the user can also configure a 32-bit CR C (default) or no CRC (none). When LEX
is used over GFP-F it is standard Mapped Ethernet over GFP-F according to IT U-T G.7041.
HDLC framing provides a set 32-bit CRC. On CTC go to CE card view and click the Provision ing >pos
ports tab, to see the various parameters that can be configured on the POS ports, see “Table 2-3CTC
Display of POS Port Provisioning Status” task on page 2-3. Various parameters like, admin state, service
state, framing type, CRC , MTU and soak time for a port can be configured here .
For more details about the interoperability of ONS Ethernet cards, including information on
encapsulation, framing, and CRC, see the “POS on ONS Ethernet Cards” chapter.
CE-1000-4 Loopback, J1 Path Trace, and SONET/SDH Alarms
The CE-1000-4 card supports terminal and facility loopbacks. It also reports SONET/SDH alarms and
transmits and monitors the J1 Path Trace byte in the same manner as OC-N cards. Support for path
termination functions include:
H1 and H2 concatenation indication
Bit interleaved parity 3 (BIP-3) generation
G1 path status indication
C2 path signal label (read only)
Path level alarms and conditions, including loss of pointer (LOP), une quipped, payload mismatch,
alarm indication signal (AIS) detection, and remote defect indication (RDI)
J1 path trace for high-order circuit paths
Extended signal label for the low-order paths