Installation guide

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Cisco IGX 8400 Series Installation Guide, Release 9.3.3 and Later Releases
OL-1165-06
Chapter 3 Installing the IGX
Setting Up a UXM-E
Step 8 Optionally, you can use the cnfabrparm command to configure additional parameters for ABR traffic.
The cnfabrparm command parameters are CI control and egress explicit rate stamping.
Step 9 Optionally, you can configure a UXM-E port as a clock source. Use the cnfclksrc command.
Step 10 Configure the cellbus bandwidth allocation with the cnfbusbw command if you plan to activate a large
number of ports on the UXM-E. Use the dspbusbw or cnfbusbw command to check cellbus usage and
changes in bandwidth requirements for the UXM-E. For an explanation of cellbus bandwidth allocation,
see the Cisco IGX 8400 Series Provisioning Guide.
Note Cisco recommends that you not allow oversubscription. Refer to the Cisco IGX 8400 Series
Provisioning Guide for the description of cellbus bandwidth allocation and the Cisco WAN
Switching SuperUser Command Reference for a description of cnfbusbw. Any user can view the
current cellbus bandwidth allocation by using the dspbusbw command.
Step 11 To check the status of the lines, use the dsplns command.
Step 12 To configure the duration, sample count and size, and peak values for historical port statistics, use the
cnfportstats command. Use the dspportstats command to display the summary statistics for cell count,
CLP cell count, OAM cell count, RM cell count, OAM cell count, unknown VPI/VCI cell count, and
optional LMI/ILMI status. Other applicable commands are dsplnerrs, dspportstatcnf, and
dspportstathist.
Connecting an NTM T1 or Y1 Trunk
The T1 trunk connections use the NTM front card and the BC-T1 back card. Japanese Y1 connections
use the NTM front card and the BC-Y1 back card. The procedure for making Y1 connections is the same
as for T1 connections described below.
Make the T1 connections as follows:
Step 1 Bring each T1 cable through the opening at the bottom of the cabinet (if applicable) and up the back of
the unit.
Step 2 Use the cable management feature to help route the cables.
Step 3 Connect the trunks to the connectors on the BC-T1s that are part of NTM/BC-T1 card sets. The T1 lines
are attached to DB-15, subminiature, 15-pin connectors on the BC-T1 cards.
The back slot line numbers correspond to the back slot number in which the BC-T1 card resides. Record
the back slot number of each line. These numbers are necessary for configuring the system after you
complete hardware installation.
Note If the number of trunks is odd, connect as many as possible in pairs, and connect the remaining
lines in ascending order.