Cisco Frame Relay Services (FRSM/MPSM) Configuration Guide and Command Reference for MGX Switches, Release 5 - Introduction [Cisco MGX 8800 Series Switches]

Table Of Contents

Introduction

FRSM and MPSM Card Types

FRSM Card Features

FRSM Card Common Features

FRSM-8T1 and FRSM-8T1-C Card Features

FRSM-8E1 and FRSM-8E1-C Card Features

FRSM-2T3E3 Card Features

FRSM-2CT3 Card Features

FRSM-HS2/B Card Features

FRSM-HS2/B with Eight X.21 or V.35 Interfaces

FRSM-HS2/B with Two HSSI Interfaces

MPSM Card Features

MPSM-8T1E1 Card Common Features

MPSM-8T1-FRM Card Features

MPSM-8E1-FRM Card Features

MPSM-8T1E1 Card Differences

SRM Card Services

Overview of the SRM Card

SRM Card Features

Introduction

This chapter introduces the Frame Relay Service Module (FRSM) and the Multi Protocol Service Module (MPSM) cards that are supported in Cisco MGX Release 5 and Cisco MGX Release 1.3.

Also introduced is the Service Resource Module (SRM) which provides services to both the FRSM and MPSM cards.

These topics introduce and describe the features of the FRSM, MPSM, and SRM cards:

•FRSM and MPSM Card Types

•FRSM Card Features

•MPSM Card Features

•SRM Card Services

FRSM and MPSM cards are supported by the PXM1, PXM1E, and the PXM45 processor cards in Cisco MGX 8230, Cisco MGX 8250, Cisco MGX 8850 (PXM1), Cisco MGX 8850 (PXM1E/PXM45), and Cisco MGX 8830 switches.

Note•The FRSM-12-T3E3 card is not documented in this book. For information on the configuration and commands for this card, refer to the Frame Relay Software Configuration Guide and Command Reference for the Cisco MGX 8850 FRSM12 Card, Release 3.

•The MPSM-T3E3-155 card is not documented in this book. For information on the configuration and commands for this card, refer to the Cisco ATM and Frame Relay Services (MPSM-T3E3-155) Configuration and Command Reference Guide for MGX Switches, Release 5.

FRSM and MPSM Card Types

The FRSM and MPSM cards documented in this manual are the single-height FRSM-8T1, FRSM-8T1-C, FRSM-8E1, FRSM-8E1-C, MPSM-8T1-FRM, MPSM-8E1-FRM, FRSM-2T3E3, FRSM-2CT3, and FRSM-HS2/B cell bus service modules.

Note In this documentation release not all of the Frame Relay service modules supported on Cisco MGX PXM1-based systems have been documented. Only the FRSM-8T1, FRSM-8T1-C, FRSM-8E1, FRSM-8E1-C, MPSM-8T1-FRM, and MPSM-8E1-FRM service modules have been documented and verified for the PXM1 platform. For PXM1 documentation of the FRSM-2CT3, FRSM-2T3E3, FRSM-HS2/B, FRSM-HS2, and FRSM-HS1/B service modules, refer to the Cisco MGX 8850 Edge Concentrator Installation and Configuration, Release 1.1.3.

When operating under control of the PXM1, PXM1E, or PXM45 processor card, the Cisco MGX 8230, Cisco MGX 8250, Cisco MGX 8850 (PXM1), Cisco MGX 8850 (PXM1E/PXM45), or Cisco MGX 8830 switches support the FRSM and MPSM cards listed in Table 1-1.

Table 1-1 FRSM and MPSM Cards Supported in MGX Switches

Front Card

Back Card

Maximum Ports

Maximum Connections

FRSM-8T1

RJ48-8T1

R-RJ48-8T1

8

1000

FRSM-8T1-C

RJ48-8T1

R-RJ48-8T1

192

1000

FRSM-8E1

MGX-RJ48-8E1

RJ48-8E1

SMB-8E1

R-RJ48-8E1

R-SMB-8E1

8

1000

FRSM-8E1-C

MGX-RJ48-8E1

RJ48-8E1

SMB-8E1

R-RJ48-8E1

R-SMB-8E1

248

1000

MPSM-8T1-FRM

RJ48-8T1

R-RJ48-8T1

192

1000

MPSM-8E1-FRM

MGX-RJ48-8E1

RJ48-8E1

SMB-8E1

R-RJ48-8E1

R-SMB-8E1

248

1000

FRSM-2CT3

BNC-2T3

256

4000

FRSM-2T3E3

BNC-2T3

BNC-2E3

BNC-2E3A

2

2000

FRSM-HS2/B

MGX-12IN1-8S

8

4000

MGX-SCSI2-2HSSI/B

2

2000

FRSM-HS2

MGX-SCSI2-2HSSI/B

2

2000

FRSM-HS1/B

MGX-12IN1-4S

4

200

FRSM-12-T3E3

SMB-6-T3E3

12

16,000

MPSM-T3E3-155

SFP-2-155

SMB-2-155-EL

BNC-3-T3E3

1000

4000

Support for each type of the FRSM and MPSM cards by the PXM1, PXM1E, and PXM45 processor cards is shown in Table 1-2

Table 1-2 FRSM and MPSM Cards Supported by PXM1, PXM1E, and PXM45 Controllers

MGX 8230,

8250

MGX 8850

MGX 8830

Service Module

PXM1

PXM1

PXM45

PXM45/B

PXM45/C

PXM1E

PXM1E

FRSM-8T1

Yes

Yes

No

Yes

Yes

Yes

Yes

FRSM-8T1-C

Yes

Yes

No

Yes

Yes

Yes

Yes

FRSM-8E1

Yes

Yes

No

Yes

Yes

Yes

Yes

FRSM-8E1-C

Yes

Yes

No

Yes

Yes

Yes

Yes

MPSM-8T1E1

Yes

Yes

No

Yes

Yes

Yes

Yes

FRSM-2CT3

Yes

Yes

No

Yes

Yes

Yes

Yes

FRSM-2T3E3

Yes

Yes

No

Yes

Yes

Yes

Yes

FRSM-HS2/B

Yes

Yes

No

Yes

Yes

Yes

Yes

FRSM-HS2

Yes

Yes

No

No

No

No

No

FRSM-HS1/B

Yes

Yes

No

No

No

No

No

FRSM-12-T3E3

No

No

Yes

Yes

Yes

No

No

MPSM-T3E3-155

No

No

No

Yes

Yes

Yes

Yes

The FRSM and MPSM cards described in this manual are single-height service modules that enable Frame Relay communications over an ATM network. These cards typically connect to a Frame Relay router. Communications from the Frame Relay router are then connected through the ATM network using a Soft Permanent Virtual Circuit (SPVC) or Permanent Virtual Circuit (PVC) to a remote device.

In Cisco MGX Releases 5 and 1.3, the FRSM and MPSM cards support communications over the ATM network with communications ports on the following destination devices:

•FRSM-8T1, FRSM-8E1, FRSM-8T1-C, and FRSM-8E1-C (Frame Relay on PXM1, PXM1E and PXM45).

•MPSM-8T1-FRM and MPSM-8E1-FRM (Frame Relay on PXM1, PXM1E and PXM45).

•FRSM-HS1/B and FRSM-HS2 (Frame Relay on PXM1).

•FRSM-HS2/B (Frame Relay on PXM1, PXM1E, and PXM45).

•FRSM-12-T3E3 (Frame Relay on PXM45).

•FRSM-2CT3 (Frame Relay on PXM1, PXM1E, and PXM45).

•FRSM-2T3E3 (Frame Relay on PXM1, PXM1E, and PXM45).

•FTM, FRM, UFM, UXM, and URM (Frame Relay, ATM, and Ethernet on IGX).

•BNM (OC-3, T3, T3/B, E3, E3/B), AUSM-8T1E1/B, FRSM-8T1E1, FRSM-8T1E1-C, and FRSM-VHS (HS1, HS1/B, HS2) (Frame Relay and ATM on Cisco MGX 8220).

•AXSM, AXSM/B, AXSM-E, and AXSM-XG (ATM on PXM45).

•BXM, BXME, and BME (ATM on BPX switches).

•AUSM-8T1/B and AUSM-8E1/B (ATM on PXM1 and PXM1E).

•MPSM-8T1-ATM, MPSM-8E1-ATM (ATM on PXM1 and PXM1E).

•PXM1 and PXM1E (ATM).

•RPM, RPM-PR, and RPM-XF (Ethernet in PXM1, PXM1E, and PXM45 switches).

•MPSM-T3E3-155 (ATM and Frame Relay on PXM1E and PXM45).

The devices listed above can serve as the destination port on the ATM network and must be connected to another device, which is typically a router, that will forward the communications to the actual destination.

When the destination port is an ATM interface, a router with an ATM interface must be attached to receive the data, unpackage the ATM frames, and forward the original data out over another interface.

When the destination port is an RPM, RPM-PR, or RPM-XF interface, the RPM card unpackages the ATM frames and forwards data out the appropriate Ethernet interface.

All communications over the FRSM and MPSM cards are two way, so remote devices can forward data to a FRSM or MPSM card, and the FRSM or MPSM card will assemble Frame Relay frames to forward to the attached router.

The preferred tool for configuring, monitoring, and controlling service modules is the Cisco WAN Manager (CWM) application for equipment management and connection management. However, the command-line interface (CLI) also provides access to the service modules and is highly applicable during initial installation, troubleshooting, and any situation in which low-level control is useful.

FRSM Card Features

These topics describe the features of the FRSM cards:

•FRSM Card Common Features

•FRSM-8T1 and FRSM-8T1-C Card Features

•FRSM-8E1 and FRSM-8E1-C Card Features

•FRSM-2T3E3 Card Features

•FRSM-2CT3 Card Features

•FRSM-HS2/B Card Features

FRSM Card Common Features

The primary difference between the different FRSM cards is physical medium used. Features that are common to the FRSM-8T1, FRSM-8T1-C, FRSM-8E1, FRSM-8E1-C, FRSM-2T3E3, FRSM-2CT3, and FRSM-HS2/B cards include:

•Interoperability with Cisco routers that support Frame service.

•Interoperability with non-Cisco vendors that support Frame Relay according to the relevant standards.

•Support for frame sizes from 5 to 4510 bytes for Frame Relay.

•Support for frame sizes from 3 to 4510 bytes for Frame Forwarding.

•ANSI T1.618 compliant, using two-octet headers.

•Support for ForeSight (PXM1 only).

•End-to-end standard ABR flow control.

•Support for ANSI T1.618 consolidated link-layer messages (CLLM) per VC across Frame Relay UNI or Frame Relay NNI.

•Standards-based CIR policing and DE tagging and discarding (Dual leaky bucket policing).

•Interpreted CCITT-16 CRC provided at end of the frame (frame discard if in error).

•Support for ITU-T Q.933 Annex A, ANSI T1.617 Annex D, and LMI local management of virtual circuits (both UNI and NNI portions).

•Enhanced LMI provides auto configuration of traffic management parameters for attached Cisco routers.

•Support for LMI autosense on UNI frame relay ports.

•Each logical port can be configured independently to run one of the following port types:

–Frame Relay UNI.

–Frame Relay NNI.

–ATM Forum FUNI mode 1A (AAL5 only).

–Frame forwarding (no translation or mapping of header contents, CRC evaluated).

•Each connection can be configured independently to use one of the following channel internetworking types:

–Frame Relay to ATM network interworking (FRF.5).

–Frame Relay to ATM service interworking (FRF.8) transparent (no protocol ID translation).

–Frame Relay to ATM service interworking (FRF.8) translational (protocol ID translation).

•Tstcon and tstdelay command support to detect connectivity of a VC and the delay in the path through which a connection is routed.

•Support for PNNI Preferred Routing for SPVCs.

•Support for all service classes of SPVCs including CBR, rtVBR, nrtVBR, ABR, and UBR.

•XPVC support (CWM) as well as PVC (PAR) support for Feeder nodes.

FRSM-8T1 and FRSM-8T1-C Card Features

The FRSM-8T1 and FRSM-8T1-C each provide eight T1 interfaces for full-duplex communications at up to 1.544 Mbps per interface, adding up to a total card throughput of 12.352 Mbps. The physical connector for each line is an RJ48 connector.

The FRSM-8T1 supports fractional and unchannelized T1 port selection on a per-T1 basis.

The FRSM-8T1-C allows full DS0 and n x DS0 channelization of the T1s for a maximum of 192 ports per card. Up to 192 DS0 ports (24 channels x 8 lines) can be operated simultaneously on this card.

Additional features include:

•B8ZS or AMI line coding.

•ANSI T1.408 extended superframe format line framing.

•Each interface configurable as a single port (FRSM-8T1) or up to 24 ports (FRSM-8T1-C) running at full line rate, at Nx56 kbps, or Nx64 kbps.

•LOS, LOF, AIS, RAI alarms.

•OAM fault management using F5 AIS/RDI and end-to-end/segment loopbacks.

•Transmitter loop-timed to receiver or synchronized to shelf.

•Supports per-VC queuing in ingress and per-port queuing and shaping in egress direction.

•Two class of service queues on egress plus one for LMI.

•Support for 1000 data-link connection identifiers (DLCIs) per card.

•Standard ABR Resource Management (RM) cell generation and DE to CLP/FECN to EFCI mapping control at the port level through use of the cnfportstdabrctrl and xcnfport commands.

•BERT and loopback support with SRM.

FRSM-8E1 and FRSM-8E1-C Card Features

The FRSM-8E1 and FRSM-8E1-C each provide eight E1 interfaces for full-duplex communications at up to 2.048 Mbps per interface, with a total card throughput of 16.384 Mbps. The physical connectors for each card can be either RJ48 connectors or SMB connectors.

The FRSM-8E1 supports fractional and unchannelized E1 port selection on a per-E1 basis.

The FRSM-8E1-C allows full DS0 and n x DS0 channelization of the E1s for a maximum of 248 ports per card. Up to 248 DS0 ports (31 channels x 8 lines) can be operated simultaneously on this card.

Additional features include:

•HDB3 or AMI line coding.

•ITU G.704 16-frame multiframe line framing and clear channel E1.

•Each interface configurable as a single port (FRSM-8E1) or up to 31 ports (FRSM-8E1-C) running at full line rate, at Nx56 kbps, or Nx64 kbps.

•LOS, LOF, AIS, RAI alarms.

•OAM fault management using F5 AIS/RDI and end-to-end/segment loopbacks.

•Transmitter loop-timed to receiver or synchronized to shelf.

•Supports per-VC queuing in ingress and per-port queuing and shaping in egress direction.

•Two class of service queues on egress plus one for LMI.

•Support for 1000 DLCIs per card.

•Standard ABR Resource Management (RM) cell generation and DE to CLP/FECN to EFCI mapping control at the port level through use of the cnfportstdabrctrl and xcnfport commands.

•BERT and loopback support with SRM.

FRSM-2T3E3 Card Features

When using the BNC-2T3 back card with the FRSM-2T3E3, two unchannelized T3 interfaces are provided for full-duplex communications at up to 44.736 Mbps per interface, adding up to a total card throughput of 89.472 Mbps. The physical connector for each line on the BNC-2T3 back card is a BNC connector with dual female 75-ohm BNC coaxial connectors per port (separate RX and TX).

When using the BNC-2E3 back card with the FRSM-2T3E3, two unchannelized E3 interfaces are provided for full-duplex communications at up to 34.368 Mbps per interface, adding up to a total card throughput of 68.736 Mbps. The physical connector for each line on the BNC-2E3 back card is a BNC connector with dual female 75-ohm BNC coaxial connectors per port (separate RX and TX).

In addition to clear channel support, the FRSM-2T3E3 supports proprietary subrate and scrambling features of the T3/E3 DSU vendors Digital Link and ADC Kentrox. T3/E3 onboard BERT and extended loopback pattern generation/verification are also supported.

The FRSM-2T3E3 supports a maximum of 2 logical ports and 2000 DLCIs per card.

Additional T3 interface features include:

•B3ZS line coding.

•Pulse shape conforming to ANSI T1.102.1993.

•C-bit parity and M13 line framing formats.

•LOS, LOF, AIS, RAI, FEBE alarm detection/generation support.

Additional E3 interface features include:

•HDB3 line coding.

•Pulse shape conforming to ITU G.703.

•ITU G.751 line framing formats.

•LOS, LOF, AIS, RAI, FEBE alarm detection/generation support.

FRSM-2CT3 Card Features

The FRSM-2CT3 provides two channelized T3 interfaces for full-duplex communications at up to 44.736 Mbps per interface, adding up to a total card throughput of 89.472 Mbps. Each T3 interface supports 28 channelized T1 lines, for a total of 56 channelized T1 lines per card. The physical connector for each line is a BNC connector with dual female 75-ohm BNC coaxial connectors per port (separate RX and TX).

The FRSM-2CT3 supports high-density n x DS0 and DS1 frame services. Up to 256 DS0 ports or 56 channelized T1 lines can be operated simultaneously on this card

A maximum of 256 logical ports is supported where each port speed can vary from 56 kbps to 1.536 kbps.

Additional features include:

•B8ZS line coding.

•Pulse shape conforming to ANSI T1.102.1993.

•C-bit parity and M13 line framing formats.

•Support for 4000 DLCIs per card.

•T1 BERT is supported with SRM.

•LOS, LOF, AIS, RAI, FEBE alarm detection/generation support.

FRSM-HS2/B Card Features

The FRSM-HS2/B can be used with one of two back cards, each of which supports a different interface type and port count. The following subsections introduce the physical layer features of the FRSM-HS2/B when used with the different back cards.

FRSM-HS2/B with Eight X.21 or V.35 Interfaces

When used with the MGX-12IN1-8S back card, the FRSM-HS2/B card provides eight X.21 or V.35 interfaces, each of which can support a maximum throughput of 8.192 Mbps, adding up to a total card throughput of 65.536 Mbps.

Additional features include:

•Serial line rate selection from 2.4 Kbps to 8.192 Mbps.

•DCE or DTE selection on a per-port basis.

•Support for DCE to DTE line configuration.

•Support for 4000 DLCIs and 8 logical ports per card.

•Support for per-VC queueing on ingress with closed-loop traffic management.

•Support for two priority levels of egress port queues for data traffic.

•DCE and DTE loopbacks.

•For DTE interfaces, the clock frequency threshold percentage is configurable (1-50 percent) with a default value of 3 percent.

FRSM-HS2/B with Two HSSI Interfaces

When used with the MGX-SCSI2-2HSSI/B back card, the FRSM-HS2/B card provides 2 HSSI interfaces, each of which can support a maximum throughput of 51.84 Mbps, adding up to a total card throughput of 103.68 Mbps.

Additional features include:

•Serial line rate selection from 2.4 Kbps to 51.84 Mbps.

•DCE or DTE selection on a per-port basis.

•Support for DCE to DTE, DCE to DCE, and DTE null to DTE line configurations.

•Support for 2000 DLCIs and 2 logical ports per card.

•Support for per-VC queueing on ingress with closed-loop traffic management.

•Support for five classes of service with four priority queues (high-priority, rt-VBR, nrt-VBR/ABR, UBR) for egress data traffic.

•DCE and DTE loopbacks.

•For DTE interfaces, the clock frequency threshold percentage is configurable (1-50 percent) with a default value of 3 percent.

MPSM Card Features

These topics describe the features of the MPSM card:

•MPSM-8T1E1 Card Common Features

•MPSM-8T1-FRM Card Features

•MPSM-8E1-FRM Card Features

•MPSM-8T1E1 Card Differences

MPSM-8T1E1 Card Common Features

Designed as a replacement for the existing cell bus service modules (AUSM-8T1/B, AUSM-8E1/B, CESM-8T1, CESM-8E1, FRSM-8T1, FRSM-8T1-C, FRSM-8E1, and FRSM-8E1-C), the MPSM-8T1E1 card is an Any Service Any Card (ASAC) service module. This supports multiple interface types (T1 and E1) and multiple service types (ATM, Frame Relay, and Circuit Emulation).

The MPSM-8T1E1 card can be used with or without services provisioned on the card. Without services provisioned on the card, the MPSM-8T1E1 is used in a redundancy group and retains its physical card type name of MPSM-8T1E1.

When provisioned for a specific interface and service type, the MPSM-8T1E1 card takes on a logical card type name depending upon what interface and service type has been configured. For example, when an MPSM-8T1E1 in standby state is provisioned using the PXM cnfcdmode command for Frame Relay services using a T1 interface, the card changes its name to the logical card type name of MPSM-8T1-FRM.

Features common to the MPSM-8T1E1 regardless of the interface and service type configured include:

•Single firmware image for all services and platforms.

•Service type and interface type configured is for the entire card.

•Run-time firmware is stored on the flash memory improving the card bring up time.

•Command Line Interface (CLI) is consistent with the existing CLI on the eight port Cell Bus Service Modules (AUSM, CESM, and FRSM).

•Optional software features (rate control only) enabled through feature licenses.

•Support for connection provisioning using VSI proxy and Portable Auto Route (PAR) enabling use in the PXM45, PXM1E, and PXM1 based systems.

•Support for all the existing eight port Cell Bus Service Module (CBSM) back cards.

•Graceful upgrade from the existing CBSMs to the MPSM.

•Onboard NxDS0, T1/E1 Bit Error Rate Test (BERT) including V54/PN127 extended loopback pattern generation and verification.

•Support for Online diagnostics.

•Support for Core Memory dumps.

•Support from SRM and SRME for T1/E1 bulk distribution, 1:N redundancy, loopbacks, and BERT. Redundancy features include:

–1:N redundancy between existing CBSMs and MPSM with CBSM as primary and MPSM as secondary.

–1:N redundancy between multiple services (ATM, Frame Relay, Circuit Emulation). For example, there can be an AUSM-8T1/B and FRSM-8T1 in a single redundancy group with the MPSM-8T1E1 acting as secondary.

–1:N redundancy between MPSMs.

Features that are common to the MPSM-8T1E1 card when configured for either T1 or E1 Frame Relay services include:

•Interoperability with Cisco routers that support Frame service.

•Interoperability with non-Cisco vendors that support Frame Relay according to the relevant standards.

•Transmitter loop-timed to receiver or synchronized to shelf.

•LOS, LOF, AIS, RAI, FEBE, remote LOS/LOF, all ones received, bipolar violation, CRC errors detection and generation, and threshold crossing alarms.

•OAM fault management using F5 AIS/RDI and end-to-end/segment loopbacks.

•User configurable alarm thresholds.

•Support for frame sizes from 5 to 4510 bytes for Frame Relay.

•Support for frame sizes from 3 to 4510 bytes for Frame Forwarding.

•Supports per-VC queuing in ingress and per-port queuing and shaping in egress direction.

•Two class of service queues on egress plus one for LMI.

•ANSI T1.618 compliant, using two-octet headers.

•Support for ForeSight (PXM1 only).

•End-to-end standard ABR flow control.

•Support for ANSI T1.618 consolidated link-layer messages (CLLM) per VC across Frame Relay UNI or Frame Relay NNI.

•Standards-based CIR policing and DE tagging and discarding (Dual leaky bucket policing).

•Interpreted CCITT-16 CRC provided at end of the frame (frame discard if in error).

•Support for ITU-T Q.933 Annex A, ANSI T1.617 Annex D, and LMI local management of virtual circuits (both UNI and NNI portions).

•Enhanced LMI provides auto configuration of traffic management parameters for attached Cisco routers.

•Each logical port can be configured independently to run one of the following:

–Frame Relay UNI (FRF.1.2).

–Frame Relay NNI.

–ATM Forum FUNI mode 1A (AAL5 only).

–Frame forwarding (no translation or mapping of header contents, CRC evaluated).

•Each connection can be configured independently to use one of the following:

–Frame Relay to ATM network interworking (FRF.5).

–Frame Relay to ATM service interworking (FRF.8.1) transparent (no protocol ID translation).

–Frame Relay to ATM service interworking (FRF.8.1) translational (protocol ID translation).

•Compliance with RFC 1483 (Multiprotocol Encapsulation over ATM Adaptation Layer 5), RFC 1490 (Multiprotocol Interconnect over Frame Relay), RFC2364 (PPP over AAL5), and RFC1973 (PPP in Frame Relay).

•Tstcon and tstdelay command support to detect connectivity of a VC and the delay in the path through which a connection is routed.

•Support for PNNI Preferred Routing for SPVCs.

•Support for all service classes of SPVCs including CBR, rtVBR, nrtVBR, ABR, and UBR.

•XPVC support (CWM) as well as PVC (PAR) support for Feeder nodes.

MPSM-8T1-FRM Card Features

When the MPSM-8T1E1 card is configured to support a T1 interface type and Frame Relay services, the card becomes an MPSM-8T1-FRM card, supporting the features common to all the FRSM cards and the specific features of the FRSM-8T1 and the FRSM-8T1-C cards.

The MPSM-8T1-FRM provides eight T1 interfaces for full-duplex communications at up to 1.544 Mbps per interface, adding up to a total card throughput of 12.352 Mbps. The physical connector for each line is an RJ48 connector.

The MPSM-8T1-FRM supports fractional and unchannelized T1 port selection on a per-T1 basis.

The MPSM-8T1-FRM allows full DS0 and n x DS0 channelization of the T1s for a maximum of 192 ports per card. Up to 192 DS0 ports (24 channels x 8 lines) can be operated simultaneously on this card.

Additional features include:

•B8ZS or AMI line coding.

•ANSI T1.408 extended superframe (ESF) format line framing.

•Each interface configurable as a single port or up to 24 ports running at full line rate, at Nx56 kbps, or Nx64 kbps.

•Support for 1000 data-link connection identifiers (DLCIs) per card.

•Standard ABR Resource Management (RM) cell generation and DE to CLP/FECN to EFCI mapping control at the port level through use of the cnfportstdabrctrl and xcnfport commands.

MPSM-8E1-FRM Card Features

When the MPSM-8T1E1 card is configured to support an E1 interface type and Frame Relay services, the card becomes an MPSM-8E1-FRM card, supporting the features common to all the FRSM cards and the specific features of the FRSM-8E1 and the FRSM-8E1-C cards.

The MPSM-8E1-FRM provides eight E1 interfaces for full-duplex communications at up to 2.044 Mbps per interface, with a total card throughput of 14 Mbps. The physical connectors for each card can be either RJ48 connectors or SMB connectors.

The MPSM-8E1-FRM supports fractional and unchannelized E1 port selection on a per-E1 basis.

The MPSM-8E1-FRM allows full DS0 and n x DS0 channelization of the E1s for a maximum of 248 ports per card. Up to 248 DS0 ports (31 channels x 8 lines) can be operated simultaneously on this card.

Additional features include:

•HDB3 or AMI line coding.

•ITU G.704 16-frame multiframe (MF) line framing and clear channel E1.

•Each interface configurable as a single port or up to 31 ports running at full line rate, at Nx56 kbps, or Nx64 kbps.

•Support for 1000 DLCIs per card.

•Standard ABR Resource Management (RM) cell generation and DE to CLP/FECN to EFCI mapping control at the port level through use of the cnfportstdabrctrl and xcnfport commands.

MPSM-8T1E1 Card Differences

Differences between the MPSM-8T1E1 card and the FRSM-8T1, FRSM-8T1-C, FRSM-8E1, and FRSM-8E1-C cards include:

•The MPSM-8T1E1 card supports Bit Error Rate Testing (BERT) through use of the Service Resource Module (SRM) and Onboard BERT functionality. The FRSM-8T1, FRSM-8T1-C, FRSM-8E1, and FRSM-8E1-C cards support BERT using only the SRM.

•The MPSM-8T1E1 card supports Online Diagnostics for active and standby cards and does not support the Self Test command set (clrslftst, cnfslftst, dspslftst, dspslftsttbl, and runslftstno). The FRSM-8T1, FRSM-8T1-C, FRSM-8E1, and FRSM-8E1-C cards do not support Online Diagnostics and continues to support the Self Test command set.

•The MPSM-8T1E1 card supports Core Memory Dumps through the use of the core command. The FRSM-8T1, FRSM-8T1-C, FRSM-8E1, and FRSM-8E1-C cards do not support this feature.

•The FRSM-8T1, FRSM-8T1-C, FRSM-8E1, and FRSM-8E1-C cards support LMI autosense on UNI frame relay ports. The MPSM-8T1-FRM and MPSM-8E1-FRM cards do not support this feature.

•When configured for Frame Relay services, the MPSM-8T1E1 card supports Frame Relay to ATM Service Interworking specification FRF.8.1. The FRSM-8T1, FRSM-8T1-C, FRSM-8E1, and FRSM-8E1-C cards support only Frame Relay to ATM Service Interworking specification FRF.8. The new features supported in FRF.8.1 include:

–The elimination of the requirement that unknown OUI values detected in an "Other Routed PDU" resulted in the discard of the PDU.

–New protocol mapping for IPv6.

–New directly mapped NLPID identified protocols including CLNP, ESIS, ISIS, FRF.9 Compression, FRF.12 Fragmentation, Frame Relay OAM, Frame Relay privacy, PPP, and future NLPID values in the range 0xB4 to 0xBF.

•The FRSM-8T1, FRSM-8T1-C, FRSM-8E1, and FRSM-8E1-C cards support the dspbufoverflow command. The MPSM-8T1-FRM and MPSM-8E1-FRM cards do not support this command.

•The FRSM-8T1, FRSM-8T1-C, FRSM-8E1, and FRSM-8E1-C cards support the cnfoamlpbk and dspoamlpbk commands (RAS OAM loopback). The MPSM-8T1-FRM and MPSM-8E1-FRM cards do not support these commands.

•The FRSM-8T1, FRSM-8T1-C, FRSM-8E1, and FRSM-8E1-C cards support the <number of frames> option in the cnftrafficgen command. The MPSM-8T1-FRM and MPSM-8E1-FRM cards do not support this option and continues to generate traffic until stopped.

SRM Card Services

These topics describe the services that the SRM card provides to the FRSM and MPSM cards:

•Overview of the SRM Card

•SRM Card Features

Overview of the SRM Card

The Cisco MGX switch supports both 1:1 and 1:N card redundancy for service modules. The 1:N card redundancy feature requires that a Service Resource Module (SRM) card be installed in the MGX switch. If there are redundant PXMs installed in the MGX switch, then the SRMs must likewise be installed in redundant pairs. In Cisco MGX Releases 5 and 1.3, three models of the SRM are supported on Cisco MGX switches: the SRM-3T3/C, the SRME, and the SRME/B.

The SRM manages Bulk Mode Distribution with 1:N Redundancy, Non-Bulk Mode 1:N Redundancy, and BERT functions on T1 or E1 service module lines and ports. Cards that have the T1 or E1 access lines physically connected to their back cards are in non-bulk mode. Cards that receive T1 or E1 access lines from the SRM across the backplane of the switch are in bulk mode.

Line redundancy is available to service modules if they are configured for bulk distribution using the SRME or SRME/B card. By using the optical back card option, intercard APS line redundancy is available only if the SRM and PXM have been installed in redundant pairs.

For non-bulk mode cards 1:N redundancy uses the redundancy bus on the backplane to pass the user traffic from the back card of the failed primary card to the active secondary front card. In non-bulk mode, multiple 1:N redundancy groups can be defined but an active backup operation is permitted only in one of the groups in a given bay at any given time. In this mode, a back card is not required for the SRM.

For cards in bulk mode, the distribution bus is used to pass the user traffic to the secondary card. In bulk distribution mode, multiple 1:N redundancy groups can be defined. Because the distribution bus can handle multiple traffic flows, multiple secondary cards can be active at the same time.

SRM Card Features

Support for each type of the SRM cards by the PXM1, PXM1E, and PXM45 processor cards is shown in Table 1-3.

Table 1-3 SRM Cards Supported by PXM1, PXM1E, and PXM45 Controllers

MGX 8230,

8250

MGX 8850

MGX 8830

SRM Card

Back Card

PXM1

PXM1

PXM45

PXM45/B

PXM45/C

PXM1E

PXM1E

SRM-3T3/C

BNC-3T3-M

Yes

Yes

No

Yes

Yes

Yes

Yes

SRME

SMFIR-1-155 STM1-EL-1

Yes

Yes

No

Yes

Yes

Yes

Yes

SRME/B

SMFIR-1-155 STM1-EL-1 BNC-3T3-M

Yes

Yes

No

Yes

Yes

Yes

Yes

The SRM-3T3/C provides redundancy services, BERT services, and T3 to T1 line distribution. The SRM-3T3/C T1 line distribution feature has the following capabilities and limitations:

•Supports up to 80 T1 lines from three T3 lines on the Cisco MGX 8250, Cisco MGX 8850 (PXM1), and Cisco MGX 8850 (PXM1E/PXM45) per bay. Line distribution is supported in all 12 service module slots except for on the Cisco MGX 8250 and Cisco MGX 8850 (PXM1) where slots 9, 10, 25, and 26 do not support line distribution.

•Supports up to 64 T1 lines from three T3 lines on the Cisco MGX 8230 and Cisco MGX 8830. Line distribution is supported in all 8 service module slots.

•A service module should have all T1 lines coming from the SRM-3T3/C or all T1 lines coming from the back card of the service module. If you link just one T1 channel on a service module to the SRM-3T3/C, the back card on the service module becomes inoperative.

•If bulk T1 line distribution is in use, service module back cards are not required.

The SRME provides redundancy services, BERT services, and OC-3/STM-1 to T1/E1 line distribution. The SRME T1 and E1 line distribution feature has the following capabilities and limitations:

•Supports either 84 T1 lines or 63 E1 lines from one OC-3/STM-1 line on the Cisco MGX 8250, Cisco MGX 8850 (PXM1), and Cisco MGX 8850 (PXM1E/PXM45). Line distribution is supported in all 12 service module slots.

•Supports either 64 T1 lines or 63 E1 lines from one OC-3/STM-1 line on the Cisco MGX 8230 and Cisco MGX 8830. Line distribution is supported in all 8 service module slots.

•In a given bay on the Cisco MGX 8850 (PXM1E/PXM45), the mixing of T1 and E1 line distribution is not supported. If you want to set up both T1 and E1 line distribution you must install all T1 service modules in one bay and all E1 service modules in the other bay. On the Cisco MGX 8830 you must choose either T1 or E1 line distribution.

•VT1.5 extraction and distribution of T1 from the Sonet (OC-3/STS-3) interface (North America).

•VC11 extraction and distribution of T1 from the SDH (STM-1) interface (Japan).

•VC12 extraction and distribution of E1 from the SDH (STM-1) interface (Rest of the world).

•A service module should have all T1 or E1 lines coming from the SRME or all T1 or E1 lines coming from the back card of the service module. If you link just one T1 or E1 channel on a service module to the SRME, the back card on the service module becomes inoperative.

•If bulk line distribution is in use, service module back card are not required.

The SRME/B provides redundancy services, BERT services, OC-3/STM-1 to T1/E1 line distribution, and T3 to T1 line distribution. The SRME/B T1 and E1 line distribution feature has the combined capabilities and limitations of the SRM-3T3/C and SRME cards.

Table 1-4 summarizes card redundancy, bulk distribution, and BERT services provided by the SRM card to the FRSM and MPSM cards. When consulting this table, remember that the SRME and SRME/B supports bulk distribution of both T1 and E1 lines and the SRM-3T3/C supports only bulk distribution of T1 lines.

Table 1-4 Card Redundancy, Bulk Distribution, and BERT Services for the FRSM and MPSM cards

Front Card

1:N Card Redundancy
with SRM

1:1 Card Redundancy
with Y-cable

Bulk Distribution Support

BERT Support

FRSM-8T1

Yes

No

Yes

Yes, with SRM

FRSM-8T1-C

Yes

No

Yes

Yes, with SRM

FRSM-8E1

Yes

No

Yes

Yes, with SRM

FRSM-8E1-C

Yes

No

Yes

Yes, with SRM

MPSM-8T1E1

Yes

No

Yes

Yes, with SRM and Onboard BERT

FRSM-2CT3

No

Yes

No

Yes, with SRM

FRSM-2T3E3

No

Yes

No

Yes, with Onboard BERT

FRSM-HS2/B with 12IN1-8S back card

No

No

No

No

FRSM-HS2/B with

HSSI back card

No

Yes

No

No

FRSM-HS2

No

Yes

No

No

FRSM-HS1/B

No

No

No

No

For more information on BERT, see Chapter 5, "Managing FRSM and MPSM Cards."

Note For instructions on how to set up and configure a Cisco MGX switch for card redundancy, line redundancy, bulk distribution, and SRM supported BERT refer to the Cisco MGX 8850 (PXM1E/PXM45), Cisco MGX 8950, and Cisco MGX 8830 Configuration Guide, Release 5, and the Cisco MGX 8850 Edge Concentrator Installation and Configuration, Release 1.1.3 documentation.