Cisco Systems IGX 8400 Series manual Interworking Connections in a Tiered Network

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IGX Configuration Summary

•For setting up data connections:

—Add the connections (addcon).

—Configure connection parameters ( cnfdclk, cnfcldir, cnfict ).

•For setting up Frame Relay connections:

—Add the connections (addcon).

—Configure connection classes ( cnfcls).

—Configure control templates, channel utilization, and channel priorities ( cnfict , cnfchutl, cnfchpri).

•For setting up ATM connections (see also the paragraph that follows this list for information on connections using ATM-to-Frame Relay interworking):

—Add connections (addcon).

—Configure a connection type ( cnfcontyp).

•Optimize network routing and bandwidth (cnfchutl, cnfpref, cnfcos).

Interworking Connections in a Tiered Network

Two approaches are available for establishing a Frame Relay-to-ATM interworking connection in a tiered network (see the Cisco WAN Switching System Overview for a description of tiered networks). The simplest approach is to use the Connection Manager in Cisco WAN Manager. When you specify a connection to an FRSM on a Cisco MGX 8220 edge concentrator, Cisco WAN Manager directs the node to establish the correct end-to-end connection type. This connection type is either atfr (ATM-to-Frame Relay interworking) or atfst (ATM-to-Frame Relay interworking with ForeSight). The other approach is to use the command line interface on the IGX node or other routing node to execute addcon and related commands (such as cnfcon) to establish the connection between routing nodes. A network interworking connection requires that you specify each individual segment of the connection. (Establishing the connection between the FRSM on the MGX 8220 shelf and the BPX node requires you to execute the addchan command on the Cisco MGX 8220 edge concentrator.)

Configuring an IGX Switch to Be an Interface Shelf

An interface shelf is a non-routing, concentrator shelf that communicates ATM cells to and from a BPX or IGX routing hub in a tiered network. (An interface shelf is also known as a feeder shelf.) An interface shelf is an IGX node configured to be an interface shelf. The MGX 8220 edge concentrator is also an interface shelf. IGX/AF is the designation of an IGX interface shelf.

For an IGX node to serve as an interface shelf, personnel in the TAC must first configure the node for that purpose because tiered network capability is a purchased option.

You can add an interface shelf from Cisco WAN Manager or the command line interface (CLI). The steps for adding a new interface shelf to a network are:

Step 1 Activate the trunk between the interface shelf and routing hub. On the CLI, use uptrk. (Note that you do not subsequently use addtrk for the interface shelf.)

Step 2 Configure the trunk for STI cell headers and BPX Addressing Mode (BAM).

Step 3 Add the IGX/AF to the hub (after the TAC has enabled this feature) by using addshelf.

You add the shelf from the routing hub.

Card Installation and Node Startup 3-51

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Contents Preparing the Cards Card Installation and Node StartupPreparing the Cards IGX 8410 Cards, Front View IGX 8410 Cards, Back View IGX 8420 Card Shelf, Front View IGX 8430 Back View Inserting Modules Inserting the CardsHssi Making Signal ConnectionsConnecting Trunks Setting Up a UXM-EBringing Up a UXM-E Trunk Cable Management Dspcds Inverse Multiplexing over ATM on TrunksAdding Links to an IMA Feeder Group Adding an IMA Feeder TrunkRemoving Links from an IMA Feeder Group UXM-E Inverse Multiplexing ATM IMA LinesConnecting an NTM E1 or Subrate Trunk Connecting an NTM T1 or Y1 TrunkBringing Up a UXM-E in UNI or NNI Port Mode Connecting a CVM to a T1 or J1 Line Installing Voice CardsTDM Transport on the CVM Connecting a CVM to an E1 Line or a Subrate TrunkConnecting a UVM to T1 Lines Pass-Through and Standard External UVM T1 Cabling Connecting a UVM to E1 Lines Pass-Through and Standard External UVM E1 Cabling Connecting a UVM to J1 Lines 10 Pass-Through and Standard External UVM J1 Cabling 11 SDI and LDI Faceplates Making Serial Data ConnectionsConfiguring the Port Modes of the HDM Back Cards HDM and LDM Redundancy Configuring the Mode of an LDI Port13 Connecting a DTE or DCE Adapter Cable to an LDI Cable Redundancy on the UFMs Maximum Connections Per Port with Signalling ProtocolsSetting Up Frame Relay on a UFM Making Frame Relay Connections14 Y-Cable Redundancy with Single and Dual-Port Cabling Setting Up Frame Relay Ports and Connections UFM Connecting UFM CablingSetting Up Frame Relay on an FRM Commands for T1/E1 Frame RelayDeleting a Frame Relay Port Port Mode Selection for V.35 Frame Relay Card Redundancy 15 Setting the Port Mode DTE/DCE on an FRISetting Up Frame Relay Ports and Connections FRM Making Alarm Relay Output Connections 36Cisco IGX 8400 Series Installation and Configuration Connecting a Single Network Management Station Making External Clock ConnectionsAttaching Peripherals 16 Connecting the Control Terminal 17 LAN Connection to SCM LAN Connection for the Network Management StationConfiguring the LAN Port D2.cb1 LAN superuser IGX 42Cisco IGX 8400 Series Installation and Configuration Connecting a Network Management Station to Multiple Networks 20 Connecting a Network Printer Connecting the Printer21 Connecting Modems to an IGX Node Connecting a ModemInitial Startup of the IGX Connecting the Power Supply MonitorFail screen looks like this NPM Startup Diagnostic Test Inspecting Status Lights Card Self TestIGX Configuration Summary Checking the Power Supplies AC Systems50Cisco IGX 8400 Series Installation and Configuration Interworking Connections in a Tiered Network Configuring an IGX Switch to Be an Interface ShelfConverting a Routing Node to an Interface Shelf Adding Connections in a Tiered Network through the CLI
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