Cisco Systems IGX 8400 manual UXM-E Trunk Features, UXM-Es in a Network with Heterogeneous Trafﬁc

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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


A UXM-E			UXM-E

IGX


B UXM-E			UXM-E

IGX

CVM

D

UXM-E		UXM-E

IGX

NTM

BXM	A
BXM	BXM
	B
	BPX

C

UXM-E UFM

E

IGX

UXM-E

E	29630

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.

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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.

4-6Cisco IGX 8400 Series Reference

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Contents Trunk Cards Trunk Interface Cards Trunk Front Cards Card Acronym Card NameTrunk Card Maintenance Trunk Operating ModesLoopback Test Introduction to the UXM-E Trunk Mode Universal Switching Module EnhancedDetermining the UXM-E’s Mode of Operation Example Networks with UXM-EsUXM-E Trunk Features UXM-Es in a Network with Heterogeneous TrafﬁcUXM-E Interfaces Back Cards for the UXM-ECard Name Card Description UXM-E Front Card Cabled UXM-E Redundancy Switchover to a Redundant UXM-EMaximum Number of UXM-Es UXM-E Status LEDs Fail Active Standby Status of CardCellbus Bandwidth Usage Card MismatchUXM-E as a Clock Source Planning for Cellbus Bandwidth Allocation OC3Calculating Cellbus Bandwidth Changes ATM Across a Public ATM NetworkTypes of Supported Trafﬁc UXM-E in Trunk ModeRouting over Cell Trunks Only Trafﬁc from FastPacket-Based Cards Trafﬁc TypeTypes of Connections on a UXM-E Trunk Inverse Multiplexing over ATM on IGX TrunksAdding an IGX Feeder Adding and Removing IMA Group Links Line RedundancyRouting Feeder Connection Cell Endpoint a Endpoint B Type IMA ProtocolTwo-Segment Connections Gateway Type Routing Load TypeRT-VBR Gwtypenone Three-Segment ConnectionsFeeder Connection Cell Endpoint a Endpoint B Type ABR.FST GwtypenoneActivation and Conﬁguration of a UXM-E in Trunk Mode UXM-E AtfrOC3 STM1 SMF 20Cisco IGX 8400 Series Reference BXM Alarms for Physical Lines and Logical TrunksSCR and PCR Policing at Less than 50 CPS on UXM-E IGX-UXM-ETrunk Statistics for Troubleshooting 10 PCR Policing Application ExampleSummary Statistics UXM-E Interface CardsConnectors and LEDs for SMF and MMF Back Cards Connector/Indicator FunctionOC-3/STM1 Back Cards 11 BC-UAI-4-155-SMF Faceplate T3 Back Cards 12 BC-UAI-2-155-SMF FaceplateConnectors and LEDs for BC-UAI-6-T3 and BC-UAI-3-T3 Connectors/Indicator FunctionBC-UAI-6-T3 Faceplate E3 Back Cards 14 BC-UAI-3-T3 FaceplateConnectors and LEDs for BC-UAI-6-E3 and BC-UAI-3-E3 BC-UAI-6-E3 FaceplateT1 Back Cards 16 BC-UAI-3-E3 FaceplateBC-UAI-8-T1-DB-15 Faceplate E1 Back Cards 18 BC-UAI-4-T1-DB-15 FaceplateBC-UAI-8-E1 DB-15 Faceplate Port 21 BC-UAI-4-E1 DB-15 Faceplate 22 BC-UAI-4-E1 BNC Faceplate Cable Redundancy for the NTM NTM StatusNetwork Trunk Module T1 Interface Card BC-T1 BC-T1 Faceplate Description23 BC-T1 Faceplate BC-T1 Connections and Status LEDsE1 Interface Back Card BC-E1 BC-E1 Connections and Status LEDs RX-TXSubrate Interface Card BC-SR Connection/Indicator Function BC-SR Connections and Status LEDsY1 Interface Back Card BC-Y1 BC-Y1 Connections and Status LEDs RX MONTX MON 46Cisco IGX 8400 Series Reference