User's Manual

19-3
ATM Switch Router Software Configuration Guide
OL-7396-01
Chapter 19 Configuring Circuit Emulation Services
Overview of CES T1/E1 Interfaces
• atmfCESLostCells
• atmfCESMisinsertedCellsz
• atmfCESRetryLimit
• atmfCESLocalAddr (not writeable)
Framing Formats and Line Coding Options for CES Modules
The CES modules support the framing formats and line coding options shown in Table 19-1.
Default CES T1/E1 Interface Configuration
The following defaults are assigned to all CES T1/E1 interfaces:
• Loopback = no loopback
• Signalling mode = no signalling
• Transmit clock source = network-derived
• Data format = clear channel
• Line build-out (LBO) = 0 to 110 feet
• Cell delay variation = 2000 microseconds
• Channel associated signalling (CAS) = FALSE
• Partial fill = 47
• AAL1 service type = unstructured
• AAL1 clock mode = synchronous
Table 19-1 CES Module Framing and Line Coding Options
Module Framing Options and Description Line Coding Options
CES T1 port adapter
• Super Frame (SF)
• Extended Super Frame (ESF)
ami or b8zs
(b8zs is the default)
CES E1 port adapter (120-ohm)
and
CES E1 port adapter (BNC)
• E1 CRC multiframe (e1_crc_mf_lt).
Configures the line type to
e1_crc_mf, without channel
associated signalling (CAS) enabled.
• E1 CRC multiframe
(e1_crc_mfCAS_lt).
Configures the line type to
e1_crc_mf, with CAS enabled.
• E1 (e1_lt).
Configures the line type to e1_lt.
• E1 multiframe (e1_mfCAS_lt).
Configures the line type to e1_mf,
with CAS enabled.
ami or hdb3
(hdb3 is the default)