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Cisco MGX 8850 Multiservice Switch Installation and Configuration
Release 1.1.31, Part Number 78-11223-03 Rev. B0, May 2005
Chapter 6 Card and Service Configuration
Circuit Emulation Service Module for T3 and E3
cnfswparms <chan_num> <mastership> <vpcflag> <conn_service_type> (=cos) <route_priority>
<max_cost> <restrict_trunk_type> <pcr> <mcr> <pct_util>
Bit Error Rate Testing on a T3 or E3 CESM
An active MGX-CESM-T3 or MGX-CESM-E3 can perform a bit error rate test (BERT). Each of these
cards contains its own BERT controller, so BERT sessions can run on any number of these cards in the
system. However, only one user at a time can run BERT on a card. BERT disrupts service because it
requires the tested path to be in loopback mode.
The CLI commands (whose functions correspond to CiscoView selections) appear in the following list.
The correct order of task execution is crucial for obtaining valid results. With the exception of
dspdsx3bert, you must enter the commands in the order they appear in the following list. You can enter
dspdsx3bert before, during, or after a session. Because the order of execution is crucial, read the
command descriptions whether you use the CiscoView application or the CLI.
1. acqdsx3bert determines if another user currently is running a BERT session on the card.
2. startdsx3bert starts a BERT test (after resetting BERT counters).
3. cnfdsx3bert specifies a pattern for the BERT test.
4. moddsx3bert injects multi-rate errors into the BERT bit stream.
chan_num Channel (connection) number and is always 32
mastership Current end-point as master or slave: 1 = master; 2 = slave (default)
vpcflag Indicates whether the connection is a VPC or a VCC: 1 = VPC and 2 = VCC
conn_service_type Type of service for the connection: 1 = cbr, 2 = vbr, 3 is not used; 4 = ubr, 5
= atfr; 6 = abrstd, and 7 = abrfst
route_priority Priority of the connection for rerouting. The range is 1–15 and is meaningful
only in relation to the priority of other connections
max_cost Number establishing the maximum cost of the connection route. The range
is 1–255 and is meaningful only in relation to the cost of other connections
restrict_trunk_type Number that specifies the type of trunk this connection can traverse. The
numbers are 1 for no restriction, 2 for terrestrial trunk only, and 3 for satellite
trunk only
pcr Peak cell rate in cells per second (cps). For T3, the maximum is 118980 cps.
For E3, the maximum is 91405 cps
mcr Minimum cell rate. The range is 1–65535 cells per second
pct_util Ppercent utilization in the range 1–100