Cisco Systems IGX 8400 UXM-E Trunk Features,

4-6 Cisco IGX 8400 Series Reference

Universal Switching Module Enhanced

voice connection between a CVM and CDP. Connection E is a local connection (DAXCON)

between a UFM and a UXM-E UNI port on the same node. For connections C–E, the gateway

function of the UXM-E packs and unpacks the FastPackets into and out of the ATM cells.

Figure 4-2 UXM-Es in a Network with Heterogeneous Trafﬁc

UXM-E Trunk Features

The following list broadly identiﬁes the features of a UXM-E trunk. After the bulleted list, the

remaining sections of this introduction contain tables that list the features on particular topics, such

as interworking. Actual descriptions of the features appear in the section “The UXM-E in Trunk

Mode” on page 13.

•The UXM-E uses all four lanes of the cellbus.

•In trunk mode, the UXM-E supports up to 8000 connections.

Note The UXM-E in trunk mode cannot support more than 4000 gateway connections. All

remaining connections can be either user or networking connections. For example,if you conﬁgure

2500 gateway connections, you still have 5500 connections available to be used for user or

networking connections.

UXM-E UXM-E

IGX

UXM-E UXM-E

IGX IGX

CVM

UXM-E UXM-E

NTM

BXM BXM

BPX

AA

B

C

E

BUXM-E UFM

IGX

29630

D

UXM-E

E

Contents

Main Trunk Cards Trunk Interface Cards This section describes the IGX trunks. The card groups are: Trunk Operating Modes Trunk Card Maintenance Common Alarms, Controls, and Indicators Universal Switching Module Enhanced Introduction to the UXM-E Trunk Mode Determining the UXM-Es Mode of Operation Example Networks with UXM-Es UXM-E Trunk Features UXM-E Interfaces Page Maximum Number of UXM-Es Y-Cabled UXM-E Redundancy Switchover to a Redundant UXM-E Card Mismatch The UXM-E as a Clock Source Cellbus Bandwidth Usage Planning for Cellbus Bandwidth Allocation Calculating Cellbus Bandwidth Changes UBUs fps 2 -------- cps+ 4000 Routing over Cell Trunks Only The UXM-E in Trunk Mode Types of Supported Trafc Types of Connections on a UXM-E Trunk Inverse Multiplexing over ATM on IGX Trunks Page Page Page Activation and Conguration of a UXM-E in Trunk Mode Page Alarms for Physical Lines and Logical Trunks SCR and PCR Policing at Less than 50 CPS on UXM-E Trunk Statistics for Troubleshooting UXM-E Interface Cards Page Trunk Cards 4-25 Figure 4-11 BC-UAI-4-155-SMF Faceplate H11697 R LOC Y REM G OK Figure 4-12 BC-UAI-2-155-SMF Faceplate T3 Back Cards R LOC Y REM G OK Trunk Cards 4-27 Table4-13 Connectors and LEDs for BC-UAI-6-T3 and BC-UAI-3-T3 H11699 Figure 4-13 BC-UAI-6-T3 Faceplate Figure 4-14 BC-UAI-3-T3 Faceplate E3 Back Cards Trunk Cards 4-29 Table4-14 Connectors and LEDs for BC-UAI-6-E3 and BC-UAI-3-E3 H11701 Figure 4-15 BC-UAI-6-E3 Faceplate Transmit Jack BNC connector for transmit data. Receive Jack BNC connector for receive data. T1 Back Cards Trunk Cards 4-31 Table4-15 Connectors and LEDs for BC-UAI-8-T1-DB-15 and BC-UAI-4-T1-DB-15 H11703 Figure 4-17 BC-UAI-8-T1-DB-15 Faceplate Four or eight DB-15s Each DB-15 connector carries transmit and receive data. Trunk Cards 4-33 Table4-16 Connectors and LEDs for BC-UAI-8-E1 and BC-UAI-4-E1 H11704 Figure 4-19 BC-UAI-8-E1 DB-15 Faceplate Green (on the tri-color LED) The card is active and in service. PORT 2 RX UAI-8EI BNC TX PORT 8 Trunk Cards 4-35 Figure 4-21 BC-UAI-4-E1 DB-15 Faceplate H11707 Figure 4-22 BC-UAI-4-E1 BNC Faceplate PORT 2 RX UAI-4EI BNC TX H11708 Network Trunk Module