Cisco Systems IGX 8400 Series Making Frame Relay Connections, Setting Up Frame Relay on a UFM

Page 28

Making Frame Relay Connections

Making Frame Relay Connections

This section outlines how to establish Frame Relay service by setting up a universal frame module (UFM) or a Frame Relay module (FRM). The information includes details for T1, E1, HSSI, V.35, and X.25 interfaces. Detailed descriptions of the Frame Relay commands appear in the Cisco WAN Switching Command Reference. Specific cabling requirements for the UFI back cards on the UFM-U appear in the UFM-U description in the Cisco IGX 8400 Series Reference.

Maximum Connections Per Port with Signalling Protocols

For any Frame Relay card set that has a maximum frame length of 4510 bytes, the type of signaling protocol you can (optionally) specify with cnffrport results in a limit on the number of connections per physical or logical port. The maximum number of connections per port for each protocol is:

•

•

•

For Annex A: 899

For Annex D: 899

For StrataLMI: 562

Neither addcon nor cnffrport prevents you from adding more than the maximum number of connections on a port. (You might, for example, use cnffrport to specify an LMI when too many connections for that particular LMI already exist.) If the number of connections is exceeded for a particular LMI, the LMI does not work on the port, the full status messages that result are discarded, and LMI timeouts occur on the port. A port failure results and also subsequently leads to a-bit failures in other segments of the connection path.

Setting Up Frame Relay on a UFM

Channelized and unchannelized versions of the UFM card sets exit. The channelized front cards UFM-4C and UFM-8C operate with T1 and E1 interfaces, and the unchannelized front card UFM-U operates with V.35, X.21, and HSSI interfaces.

The back cards have the following terminations:

•

•

•

•

•

•

The UFI-8T1-DB-15 has 8, female, subminiature DB-15s.

The UFI-8E1-DB-15 has 8, female, subminiature DB-15s.

The UFI-8E1-BNC has 16 BNC connectors, 1 for each direction.

The UFI-12V.35 has 6 low-force helix (LFH) connectors with 2 ports per connector.

The UFI-12X.21 has 6 low-force helix (LFH) connectors with 2 ports per connector.

The UFI-4HSSI has 4 connectors.

If the installation includes Y-cable redundancy, first read the section “Y-Cable Redundancy on the UFMs.”

Y-Cable Redundancy on the UFMs

Redundancy for a Frame Relay port is possible with a second card set and the appropriate Y-cable. The card redundancy kit for UFM contains a second UFM/UFI card set and Y-cables to interconnect the ports on the two back cards. The forthcoming section titled “Setting Up Frame Relay Ports and Connections (UFM)” includes the step for configuring Y-cable redundancy.

Refer to the cabling description in the UFM-U section of the Cisco IGX 8400 Series Reference for descriptions and part numbers of all cables for unchannelized UFMs.

3-28Cisco IGX 8400 Series Installation and Configuration

Page 27 Page 29
Image 28
Page 27 Page 29
Contents Card Installation and Node Startup Preparing the CardsPreparing the Cards IGX 8410 Cards, Front View IGX 8410 Cards, Back View IGX 8420 Card Shelf, Front View IGX 8430 Back View Inserting the Cards Inserting ModulesMaking Signal Connections HssiSetting Up a UXM-E Connecting TrunksBringing Up a UXM-E Trunk Cable Management Inverse Multiplexing over ATM on Trunks DspcdsAdding an IMA Feeder Trunk Adding Links to an IMA Feeder GroupUXM-E Inverse Multiplexing ATM IMA Lines Removing Links from an IMA Feeder GroupConnecting an NTM T1 or Y1 Trunk Connecting an NTM E1 or Subrate TrunkBringing Up a UXM-E in UNI or NNI Port Mode Installing Voice Cards Connecting a CVM to a T1 or J1 LineConnecting a CVM to an E1 Line or a Subrate Trunk TDM Transport on the CVMConnecting 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 Making Serial Data Connections 11 SDI and LDI Faceplates Configuring the Port Modes of the HDM Back Cards Configuring the Mode of an LDI Port HDM and LDM Redundancy13 Connecting a DTE or DCE Adapter Cable to an LDI Maximum Connections Per Port with Signalling Protocols Setting Up Frame Relay on a UFMMaking Frame Relay Connections Cable Redundancy on the UFMs14 Y-Cable Redundancy with Single and Dual-Port Cabling Connecting UFM Cabling Setting Up Frame Relay Ports and Connections UFMCommands for T1/E1 Frame Relay Setting Up Frame Relay on an FRMDeleting a Frame Relay Port Port Mode Selection for V.35 15 Setting the Port Mode DTE/DCE on an FRI Frame Relay Card RedundancySetting Up Frame Relay Ports and Connections FRM Making Alarm Relay Output Connections 36Cisco IGX 8400 Series Installation and Configuration Making External Clock Connections Connecting a Single Network Management StationAttaching Peripherals 16 Connecting the Control Terminal LAN Connection for the Network Management Station 17 LAN Connection to SCMConfiguring the LAN Port D2.cb1 LAN superuser IGX 42Cisco IGX 8400 Series Installation and Configuration Connecting a Network Management Station to Multiple Networks Connecting the Printer 20 Connecting a Network PrinterConnecting a Modem 21 Connecting Modems to an IGX NodeConnecting the Power Supply Monitor Initial Startup of the IGXNPM Startup Diagnostic Test Fail screen looks like thisCard Self Test Inspecting Status LightsChecking the Power Supplies AC Systems IGX Configuration Summary50Cisco IGX 8400 Series Installation and Configuration Configuring an IGX Switch to Be an Interface Shelf Interworking Connections in a Tiered NetworkAdding Connections in a Tiered Network through the CLI Converting a Routing Node to an Interface Shelf
Top Page Image Contents