Cisco Systems IGX 8400 - page 17

Trunk Cards 4-17

Universal Switching Module Enhanced

Figure 4-7 shows an example of IMA protocol overhead. In the example, DS0 1 is reserved for anIMA group with 1 to 4 physical lines and DS0 2 is reserved for an IMA group with 5 to 8 physicallines.

Figure 4-7 IMA Protocol

Supported Segment Connections on the IGX Feeder NodeFigure 4-8 shows an example of conﬁguring a two-segment connection for IGX feeder nodefunctionality.

Figure 4-8 Sample Two-Segment Connections

Table4-8 lists the corresponding routing and feeder endpoints with applicable gateway and loadtypes and also connection types.

Table4-8 Two-Segment Connections

Routing

Endpoint A Feeder

Endpoint B Connection

Type

VCC

or

VPC Gateway Type Cell

Routing Load Type

UXM-E UXM-E CBR Both GW_TYPE_NONE True CBR_LOAD

BXM RT-VBR GW_TYPE_NONE True CBR_LOAD

NRT-VBR GW_TYPE_NONE True VBR_LOAD

ABR.STD GW_TYPE_NONE True ABR_LOAD

ABRFST GW_TYPE_NONE True ABR_LOAD

UBR GW_TYPE_NONE True UBR_LOAD

UXM-E UXM-E ATFR N/A GW_TYPE_NWI N/A BDATA_LOAD

6 1

15

26

3

4

6 1

IGX-hub

Trunk 8.1-4

IGX-feeder

29453

U

X

M-

E

U

X

M-

E

U

X

M-

E

U

X

M-

E

IGX-feeder

BNI/

BXM/

UXM-E

BA

UXM-E/

BXM

Routing

network

29455

U

X

M-

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