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Eight-Port Circuit Emulation Service Modules
Cisco MGX 8850 Installation and Configuration, Release 1.1.00, Part Number 78-6186-02
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Step 3 Create a logical port with addport if the application requires N x 64-Kbps 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 signaling or 2–16 and 17–32 with CAS signaling.
• 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 or redundancy or both according to the restrictions in
“Redundancy Support for the Eight-Port CESM.” On the CLI of the PXM, 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>
• Execute addred:
addred <redPrimarySlotNum> <redSecondarySlotNum> <RedType>
T3 line number is the MGX-SRM-3T3/B 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.
redPrimarySlotNum is the primary slot. For the redundancy bus (no bulk
distribution), valid slot numbers are 1–6, 9–14, 17–22,
and 25–30. With bulk distribution of T1 channels, do
not specify 9, 10, 26, or 26.
redSecondarySlotNum is the secondary slot. For the redundancy bus (no bulk
distribution), valid slot numbers are 1–6, 9–14, 17–22,
and 25–30. With bulk distribution of T1 channels, do
not specify 9, 10, 26, or 26.
RedType is the type of redundancy. A 1 specifies 1:1 for E1 with
SMB connectors. A 2 specifies 1:N for T1 or E1.