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Cisco MGX 8230 Edge Concentrator Installation and Configuration
Release 1.1.31, Part Number 78-11215-03 Rev. B0, May 2001
Chapter 6 Card and Service Configuration
Eight-Port Circuit Emulation Service Modules
• E1-signalling specifies the E1 signalling. The possible entries are
–
CAS, which specifies CAS and no CRC
–
CAS_CRC, which specifies CAS with CRC
–
CCS, which specifies CCS and no CRC
–
CCS_CRC, which specifies CCS with CRC
–
CLEAR: CLEAR channel
Step 3 Create a logical port with addport if the application requires N x 64Kbps channels:
addport <port_num> <line_num> <begin_slot> <num_slot> <port_type>
• port_num is the logical port number in the range 1–192 for T1 or 1–248 for E1
• line_num is the number of the physical line in the range 1–8
• begin_slot is the beginning timeslot number in the frame: for T1, 1–24; For E1 2–32 with CCS
signalling or 2–16 and 17–32 with CAS signalling
• num_slot is the number of timeslots in the frame for the current port (port_num)
• port_type is: 1=structured 2=unstructured; 3=framing on VC disconnect
Step 4 Configure resources at the port level as needed by executing cnfportrscprtn:
cnfportrscprtn <port_num> <controller_name>
• port_num is the logical port number in the range 1–192 for T1 or 1–248 for E1.
• controller_name is the name of the network control application. Enter one of the following strings:
PAR, PNNI, or MPLS.
Configuring Bulk Distribution and Redundancy
You can configure either bulk distribution alone, redundancy alone, or both of these features according
to the restrictions in “Redundancy Support for the Eight-Port CESM.” On the CLI of the PXM1, execute
addlink for bulk distribution (T1 only) before you execute addred for redundancy. To configure bulk
distribution:
Execute addlink to create the links:
addlink <T3 line number> <T1 line number> <Target Slot number> <Slot line number>
• T3 line number is the MGX-SRM-3T3/C line number in the format slot.line. The
slot can be 15 or 31. The range for port is 1–3
• T1 line number is the starting T1 line number within the T3 line. The range for the
T1 line number is 1–28.
• Target Slot number is slot number for the T1 service module.
• Slot line number is T1 line number in the range 1–8.