INSTALLATION AND OPERATION MANUAL MPW-1 TDM Pseudowire Access Gateway MP-4100 Version 2.
MPW-1 TDM Pseudowire Access Gateway MP-4100 Version 2.0 Installation and Operation Manual Notice This manual contains information that is proprietary to RAD Data Communications Ltd. ("RAD"). No part of this publication may be reproduced in any form whatsoever without prior written approval by RAD Data Communications.
Quick Start Guide If you are familiar with the MPW-1 modules, use this guide to prepare it for operation. SFPs installed on MPW-1 modules may be equipped with a laser diode. In such cases, a label with the laser class and other warnings as applicable will be attached near the optical transmitter. The laser warning symbol may be also attached. Warning For your safety: • Before turning on the equipment, make sure that the fiber optic cable is intact and is connected to the optical transmitter.
Quick Start Guide Installation and Operation Manual Configuring Physical Layer Parameters Configuring Internal DS1 Ports Physical Layer Parameters For the supervision terminal, use the Configuration > Physical Layer > I/O screen.
Installation and Operation Manual Quick Start Guide Configuring Ethernet Ports Physical Layer Parameters For the supervision terminal, use the Configuration > Physical Layer > I/O screen. Parameter Values Parameter Values Port Number 1 to 3 All Ports Auto Negotiation ENABLE DISABLE Administrative Status DOWN UP Max.
Quick Start Guide Installation and Operation Manual Configuring Static Routes For the supervision terminal, use the Configuration > Applications > Router > Static Route screen. Parameter Values Number 1 to 100 IP Address Valid IP address in dotted-quad notation IP Mask Valid IP subnet mask in dotted-quad notation Next Hop Valid next hop IP address in dotted-quad notation Configuring the Pseudowire Peers For the supervision terminal, use the Configuration > Applications > Router > Peers screen.
Installation and Operation Manual Quick Start Guide Configuring Pseudowire PSN Parameters For the supervision terminal, use the Configuration > Applications > Multi-Service over PSN > PW > PSN Parameters screen.
Quick Start Guide Installation and Operation Manual Configuring Attachment Circuit Parameters For the supervision terminal, use the Configuration > Applications > Multi-Service over PSN > PW > Service Parameters > Attachment Circuit screen. Parameter Values Slot IO-1 to IO-10 Int DS1 Number 1 to 8 Time Slots See below Selecting Timeslots Connected to a Pseudowire For each pseudowire connected to an internal DS1 port using the DS0 cross-connect mode, configure timeslot assignment.
Contents Chapter 1. Introduction 1.1 1.2 1.3 1.4 Overview.................................................................................................................... 1-1 Product Options...................................................................................................... 1-1 Applications ............................................................................................................ 1-2 Features ..........................................................................
Table of Contents Installation and Operation Manual Chapter 3. Configuration 3.1 3.2 3.3 3.4 3.5 3.6 Normal Indications ..................................................................................................... 3-3 Default Settings ......................................................................................................... 3-3 Putting a New MPW-1 Module in Service .....................................................................
Chapter 1 Introduction 1.1 Overview This manual describes the technical characteristics, applications, installation and operation of the MPW-1 pseudowire access gateway I/O module for the Megaplex-4100 Next Generation Multiservice Access Node. MPW-1 operates as a pseudowire server for TDM traffic (E1, T1, SHDSL, ISDN, high-speed and low-speed data, voice) received via the internal Megaplex-4100 TDM buses from other I/O modules installed in the same chassis.
Chapter 1 Introduction Installation and Operation Manual MPW-1 is offered in two models with similar characteristics, which differ only in the type of interfaces supported by the external Fast Ethernet ports: • MPW-1/UTP: has three 10/100BASE-TX interfaces terminated in RJ-45 connectors • MPW-1/SFP: has three sockets for Fast Ethernet SFP optical transceivers. RAD offers several types of SFPs capable of meeting a wide range of operational requirements.
Installation and Operation Manual Chapter 1 Introduction The application of Figure 1-2 also permits users connected to MPW-1 Ethernet ports access to packet switched networks (PSN), for example, Internet or metropolitan Ethernet networks, via the Megaplex-4100GbE links. Another application for a Megaplex-4100 equipped with CL.1/GbE modules is shown in Figure 1-3.
Chapter 1 Introduction Installation and Operation Manual Features MPW-1 is a pseudowire server I/O module that provides TDM pseudowire access gateway services over packet-switched networks (Ethernet, IP, and MPLS) for TDM traffic (E1, T1, SHDSL, ISDN, high-speed and low-speed data, voice) received via the Megaplex-4100 TDM buses from other modules.
Installation and Operation Manual Chapter 1 Introduction (CCS) such as Signaling Scheme 7 (SS7), ISDN PRI signaling, etc.) can be transparently transferred within the pseudowire, as regular data timeslots. • Fractional E1 and T1 services, with or without CAS, are supported by means of TDMoPSN. Without CAS, CESoPSN can also be used. • HDLC traffic can be carried over framed and unframed E1 and T1 using HDLCoPSN. This enables efficient and transparent transfer of Frame Relay traffic.
Chapter 1 Introduction Installation and Operation Manual The proper balance between the PSN throughput and delay is achieved via configurable packet size. A jitter buffer with selectable size compensates for packet delay variation (jitter) of up to 200 msec in the network. On the TDM side, MPW-1 timing is locked to the Megaplex-4100 nodal timing, because its traffic is synchronously collected from Megaplex-4100 TDM buses, and the received traffic is also deposited on these buses.
Installation and Operation Manual 1.2 Chapter 1 Introduction Physical Description The MPW-1 module occupies one I/O slot in the Megaplex-4100 chassis. Typical panels are shown in Figure 1-5. MPW-1 MPW-1 LINK ACT ETH1 ETH2 Figure 1-5.
Chapter 1 Introduction 1.3 Installation and Operation Manual Functional Description Figure 1-6 shows the functional block diagram of the MPW-1 module. MPW-1 TDM Bus Interface DS1 Port 1 TDM Cross-Connect Matrix Signaling Bus TDM Bus Signaling Bus Interface . .. .. .. . Pseudowire Cross-Connect Matrix DS1 Port 8 . .. . .. ..
Installation and Operation Manual Chapter 1 Introduction The MPW-1 module includes the following main subsystems: • • • • • TDM subsystem, including: Signaling and TDM bus interfaces TDM cross-connect matrix Internal DS1 ports Pseudowire processing subsystem, including: Pseudowire cross-connect matrix Packet processors Ethernet subsystem, including: Layer 2 Ethernet switching subsystem Ethernet port interfaces (transceivers) Ethernet termination and processing Timing s
Chapter 1 Introduction Installation and Operation Manual all of the 32 timeslots of the port are handled as a single data stream and are transparently connected to another user-selected port. In the framed mode, only the payload timeslots are transparently connected (31 timeslots when connecting to another E1 port, 24 for connecting to a T1 port).
Installation and Operation Manual Chapter 1 Introduction timeslot assignment is made as part of the pseudowire configuration procedure, and it determines the cross-connect operations performed by the pseudowire cross-connect matrix (see below). MPW-1 has a total of eight internal DS1 ports, each capable of handling 32 64 kbps timeslots.
Chapter 1 Introduction Installation and Operation Manual configured as the destination (outbound) label at the other pseudowire endpoint, and vice versa. Each pseudowire is handled in accordance with the user-configured PSN parameters (see the PSN Configuration Parameters section), considering the user-selected pseudowire parameters, and the framing and signaling mode of the associated internal DS1 port. The processing details for each pseudowire protocol are presented below.
Installation and Operation Manual Chapter 1 Introduction The packet processor recovers the payload carried by the packets and restores the original data stream of the pseudowire, in accordance with the selected framing mode. When the pseudowire carries only selected timeslots, the payload is reinserted in the appropriate timeslots.
Chapter 1 Introduction Note Installation and Operation Manual The SAToPSN packet overhead is large, and therefore, for efficient bandwidth utilization, the number of raw TDM bytes per packet should be as large as possible. The receiving end restores the original bit stream, and therefore a SAToPSN pseudowire can only be directed to another unframed E1 port, or to an n×64 kbps protocol (where n must be 32, that is, to a high-speed serial port operating at a rate of 2048 kbps).
Installation and Operation Manual • Chapter 1 Introduction The jitter buffer is filled by the incoming packets and emptied out to fill the TDM stream. If the PSN jitter exceeds the configured jitter buffer size, underflow/overflow conditions occur, resulting in errors at the TDM side: A jitter buffer overrun occurs when it receives a burst of packets that exceeds the configured jitter buffer size + packetization delay. When an overrun is detected, MPW-1 clears the jitter buffer, causing an underrun.
Chapter 1 Introduction Installation and Operation Manual • The accuracy of the original timing source, in accordance with the standard SDH/SONET terminology (Stratum 1, 2, 3, 3E, or 4/unknown) • The type of PSN that transports the traffic: router-based network (for example, UDP/IP) versus switch-based network (for example, MPLS/Ethernet).
Installation and Operation Manual Chapter 1 Introduction PSN Configuration Parameters MPW-1 enables the user to select the PSN type (UDP/IP or MPLS/ETH), and configure the PSN transport parameters. The PSN parameters, which are reflected in the pseudowire header structure, enable specifying the requested priority or quality of service for pseudowire traffic generated by the MPW-1.
Chapter 1 Introduction Installation and Operation Manual auto-negotiation can be disabled, and the rate and operating mode be directly specified. The Ethernet ports can be ordered with one of the following types of interfaces: • 10/100BASE-TX interfaces terminated in RJ-45 connectors. In addition to auto-negotiation, MDI/MDIX polarity and cross-over detection and automatic cross-over correction are also supported.
Installation and Operation Manual SFP Type and Operating Wavelength Fiber Type Transmitter Type Chapter 1 Introduction Input Power (dBm) min max Output Power Connector Typical Max. (dBm) Type and Range Number of (km/miles) min max Fibers per Port SFP-19A Tx: 1490nm Rx: 1570nm 9/125 μm, single mode Laser (WDM) -30 -8 0 +5 80/49.7 LC; single fiber SFP-19B Tx: 1570nm Rx: 1490nm 9/125 μm, single mode Laser (WDM) -30 -8 0 +5 80/49.
Chapter 1 Introduction Installation and Operation Manual Each switching subsystem port is supported by an independent MAC controller that performs all the functions required by the IEEE 802.3 protocol. The local Ethernet switching subsystem performs classification and switching functions among its ports. The Ethernet switch determines the destination of each frame in accordance with the configured Ethernet flows.
Installation and Operation Manual • Chapter 1 Introduction Pseudowires configured on different MPW-1 modules must be configured with different peers, even if the destination address is the same. Different peers must not have the same destination IP address and the same next hop IP address (at least one of these parameters must be different). Therefore, if it necessary for several pseudowires to reach the same IP address, create separate router interfaces.
Chapter 1 Introduction Installation and Operation Manual Redundancy via PSN only Figure 1-7 shows a topology which protects TDM traffic carried over PSN against failures in MPW-1 hardware, and in the transmission paths over PSN. Figure 1-7.
Installation and Operation Manual Chapter 1 Introduction Redundancy via PSN and TDM (E1) Networks The dual-cable, parallel transmission redundancy mode supported by Megaplex-4100 enables protecting traffic over different media. Therefore, a MPW-1 internal DS1 port can be the redundancy partner of an E1 or PDH port on another I/O, respectively CL, module.
Chapter 1 Introduction Installation and Operation Manual At 48 TDM bytes per frame: 5.5 msec when signaling is transferred, and 5.9 msec without signaling At 384 TDM bytes per frame: 44 msec when signaling is transferred, and 47 msec without signaling Therefore, for pseudowires with a few timeslots, it is recommended to use the minimum payload size (48 bytes). In general, the TDMoPSN packetization delay is calculated with the following formula: Packetization delay (ms) = 47 × N × 0.
Installation and Operation Manual Chapter 1 Introduction The frame overhead and the number of TDM bytes per frame have already been presented; the additional parameter is the number of frames per second, which assumes the following values: • Unframed E1 stream: 5447/N, where N is the multiplier of 48 bytes specified when selecting the number of TDM bytes per frame • Framed E1 stream: 8000 × k/47N, where k is the number of timeslots assigned to the pseudowire.
Chapter 1 Introduction Installation and Operation Manual MPW-1 Timing Subsystem The MPW-1 timing subsystem performs the following main functions: • Generates the clock and timing signals required by the transmit paths of the module. These signals are locked to the Megaplex-4100 nodal timing.
Installation and Operation Manual 1.4 General Technical Specifications Function TDM pseudowire access gateway with internal ports Internal TDM Ports 8 internal DS1 ports, with 32 timeslots per port (258 timeslots total, equivalent to 8×2.
Chapter 1 Introduction Installation and Operation Manual Payload Routing Packet Routing Exit Ports Ethernet Interfaces • Static routing (up to 100 static routes per Megaplex-4100) • Up to 6 router interfaces per MPW-1, and up to 100 router interfaces per Megaplex-4100 (each router interface has its own source IP address) • Up to 100 pseudowire destinations (peers) per Megaplex-4100 • User-defined internal routing (any packet processor to any external Fast Ethernet port), and connection parameter
Chapter 2 Installation This Chapter provides installation and setup instructions for MPW-1 modules. The information presented in this Chapter supplements the general Megaplex-4100 installation, configuration and operation instructions contained in the Megaplex-4100 Installation and Operation Manual. 2.1 Installing the Module MPW-1 modules may be installed in an operating unit (hot insertion).
Chapter 2 Installation Installation and Operation Manual MPW-1 modules equipped with RAD-supplied SFP plug-in modules comply with laser product performance standards set by government agencies for Class 1 laser products. The modules do not emit hazardous light, and the beam is totally enclosed during all operating modes of customer operation and maintenance.
Installation and Operation Manual Chapter 2 Installation To install the SFP: 1. Lock the latch wire of the SFP module by lifting it up until it clicks into place, as illustrated in Figure 2-1. Note Some SFP models have a plastic door instead of a latch wire. Figure 2-1. Locking the Latch Wire of a Typical SFP 2. Carefully remove the dust covers from the corresponding SFP socket of the MPW-1 module, and from the SFP electrical connector. 3.
Chapter 2 Installation Installation and Operation Manual 3. Insert the MPW-1 module in its slot and slide it backward as far as it goes. 4. Secure the MPW-1 module by tightening its two fastening screws. 5. The module starts operating as soon as it is plugged into an operating enclosure. At this stage, ignore the alarm indications. 2.
Chapter 3 Configuration This Chapter provides specific configuration information for MPW-1 modules. The configuration activities are performed by means of the management system used to control the Megaplex-4100 unit. For general instructions, additional configuration procedures, and background information, refer to the Megaplex-4100 Installation and Operation Manual. Notes • MPW-1 modules provide pseudowire services to the other modules installed in the Megaplex-4100.
Chapter 3 Configuration Installation and Operation Manual 1. For framed internal DS1 ports using the DS0 cross-connect mode: configure the utilization of the individual timeslots, including timeslots using split assignment, for each module port. You can assign timeslots only to ports already configured with Administrative Status set to Up. Note For MPW-1 internal DS1 ports using the DS1 cross-connect mode, the connection to another port is configured as part of the port physical layer parameters.
Installation and Operation Manual 3.1 Chapter 3 Configuration Normal Indications The status of each MPW-1 Ethernet port is indicated by a separate set of indicators.
Chapter 3 Configuration Parameter Installation and Operation Manual Description Factory Default Value Ethernet Port – Physical Layer Configuration Parameters Port Number Ethernet port number 1 Administrative Status Ethernet port administrative status Down Name Ethernet port logical name Empty string Auto Negotiation Ethernet port autonegotiation mode Enable Max.
Installation and Operation Manual Chapter 3 Configuration Parameter Description Factory Default Value Peer Number Pseudowire destination index number 1 OAM Mode Pseudowire OAM support Proprietary Out PW Label UDP/IP: UDP source port number. 1 MPLS/ETH: outer (tunnel) MPLS label 16 UDP/IP: UDP destination port number.
Chapter 3 Configuration Installation and Operation Manual Parameter Description Factory Default Value OOS Signaling State of signaling bits sent to the internal DS1 port connected to the selected pseudowire during out-of-service periods Forced idle Attachment Circuit Parameters Slot I/O slot number IO-1 Int-DS1 Number Internal DS1 port of the selected MPW-1 1 Time Slots Pseudowire timeslot assignment – (no timeslot assigned) Recovered Clock Source Parameters ID Recovered clock source index
Installation and Operation Manual 3.3 Chapter 3 Configuration Putting a New MPW-1 Module in Service Adding an MPW-1 to Megaplex-4100 Database ³ To program an MPW-1 module in the Megaplex-4100 database: 1. Navigate to the Configuration > System > Card Type screen. 2. Bring the cursor to the field of the prescribed I/O slot by clicking , and then select MPW-1. 3. Update the Megaplex-4100 database, to save the new selection (type %, and then type y to confirm).
Chapter 3 Configuration Parameter Function Administrative Used to enable/disable the selected Status port Installation and Operation Manual Values UP — The flow of traffic through the selected port is enabled. DOWN — The flow of traffic through the selected port is disabled. This state should be selected as long as the port configuration has not yet been completed, or when it is necessary to stop traffic flow through the port.
Installation and Operation Manual Chapter 3 Configuration Parameter Function Values Redundant Port Selects the other port of a redundancy The available selections depend on the destination pair. module and the number of active ports on the other module: The selection must always be symmetrical. • 1 to 8 for external and internal E1 or T1 ports This parameter is not displayed when Redundancy is NONE • 1 to 8 for internal_DS1 ports • 1 to 63 PDH ports on a CL module using STM-1 links.
Chapter 3 Configuration Installation and Operation Manual Parameter Function Values Framing Selects the handling of the payload flowing through the selected internal DS1 port FRAMED – Enables separate handling of each individual timeslot. In this mode, it is also possible to connect to either E1 ports or T1 ports (for T1 ports, the maximum is 24 timeslots). UNFRAMED – The port is considered as a whole (all its timeslots are handled as a single group).
Installation and Operation Manual Chapter 3 Configuration port, but the parameters are actually changed only when the database is updated. To avoid redundancy configuration errors, use the following procedure: 1. Before starting the configuration of the redundancy parameters, decide which port of the planned redundancy pair is to serve as the primary port, and make sure that the other port does not carry traffic.
Chapter 3 Configuration Installation and Operation Manual that supports connection of individual timeslots (for example, a high-speed data module). For PDH ports, make sure to map the PDH port to the prescribed TU of the CL STM-1 or OC-3 port (for the supervision terminal, use Configuration > System > Mapping, using the instructions appearing in the Megaplex-4100 Installation and Operation Manual). • For transferring inband management (relevant only for connections to other E1 or T1 ports).
Installation and Operation Manual Chapter 3 Configuration 2. Select the Ethernet ports configuration option, and then select a specific port. Alternatively, first preconfigure all the ports with the same basic parameters (All Ports option), and then sequentially select each port and change its parameters as required. Table 3-3 describes the Ethernet port configuration parameters. Table 3-3.
Chapter 3 Configuration Installation and Operation Manual 3.4 Configuring Pseudowire Services The pseudowire services enable converting TDM payload to packets and transferring these packets through router interfaces defined in the Megaplex-4100.
Installation and Operation Manual Chapter 3 Configuration 4. The last priority is to use the router interface that is within the default gateway subnet. Note Each router interface serves as a bridge port for the pseudowires using it. These bridge ports appear in automatically created Ethernet flows – see Section 3.6.
Chapter 3 Configuration Installation and Operation Manual Table 3-4. Router Parameters Parameter Function Values Interface Displays the router interface configuration screen See Table 3-5 below Static Route Displays the static route configuration screen See Table 3-6 below Default Gateway Specifies the default gateway IP address (usually an IP router port) to which the router will send packets when other routing criteria are not met (see Figure 3-1).
Installation and Operation Manual Chapter 3 Configuration Parameter Function Values Name Used to define a logistic name for this interface Up to 32 alphanumeric characters.
Chapter 3 Configuration Installation and Operation Manual Parameter Function Values VLAN ID Specifies the VLAN ID inserted in the packets transmitted through this router interface. The allowed range is 1 to 4094. The selected VLAN ID must be unique per router interface, but can be reused on different interfaces. Using the MEF (Metropolitan Ethernet Forum) terms, this VLAN ID indicates the C-VLAN (customer’s edge VLAN). 0 means that no VLAN ID has been selected.
Installation and Operation Manual Chapter 3 Configuration Parameter Function Values Next Hop Specifies an IP address to which the packets will be sent, to enable reaching the destination IP address. This is usually the address of an IP router port Type in the next hop IP address using the dotted-quad format. To use the default gateway, leave this field at the default value, 0.0.0.0. Default: 0.0.0.
Chapter 3 Configuration Installation and Operation Manual Parameter Function Values Peer IP Address Specifies the IP address of the peer Enter the desired IP address in the dotted-quad format. Default: 0.0.0.0 Peer Next Hop Address Specifies the IP address of the next port to which packets directed to the selected peer will be sent. Enter the desired IP address in the dotted-quad format. Default: 0.0.0.
Installation and Operation Manual Note Chapter 3 Configuration The following sections provide guidelines for performing the required configuration activities, assuming that you are familiar with the Megaplex-4100 and its range of Ethernet services. If necessary, refer to the Megaplex-4100 Installation and Operation Manual for additional details. The tasks needed to configure a pseudowire and its associated parameters are started from the Configuration > Applications > Multi-Service over PSN menu.
Chapter 3 Configuration Installation and Operation Manual Table 3-8. General Pseudowire Parameters Parameter Function Values PW Type Selects the encapsulation protocol for the selected pseudowire TDMoIP CE – Encapsulation using TDMoPSN circuit emulation, can carry data and voice timeslots, as well as unframed data. HDLC – Encapsulation using the HDLCoPSN protocol, for carrying HDLC traffic CESoPSN – Encapsulation using the CESoPSN protocol, for carrying framed data streams.
Installation and Operation Manual Chapter 3 Configuration Parameter Function Values Out PW Label For UDP/IP: Specifies the UDP source port number used by the pseudowire. The allowed range is 1 to 8063 Default: Same as the pseudowire index number For MPLS/ETH: Specifies the outer (tunnel) MPLS label used by the pseudowire In PW Label For UDP/IP: Specifies the UDP destination port number used by the pseudowire. The allowed range is 16 to 1048575.
Chapter 3 Configuration Installation and Operation Manual Now, you cannot assign the next label (Out PW Label of 101 in this example) to a pseudowire using payload Version V2, because the resulting source UDP port is also 101 So, you must skip (never use) the pseudowire label next to the label assigned to pseudowire payload Version V1, if the next pseudowire uses payload Version V2.
Installation and Operation Manual Chapter 3 Configuration Table 3-9. Pseudowire PSN Parameters Parameter Function Values ToS Specifies the Layer 3 priority assigned to the traffic generated by this pseudowire. Type in the prescribed number, in the range of 0 to 255. For IP networks, this priority is indicated by the IP type-of-service parameter for this pseudowire. The specified value is inserted in the IP TOS field of the pseudowire IP packets.
Chapter 3 Configuration Installation and Operation Manual Parameter Function Values Ingress Tunnel Label Specifies the inbound MPLS label used for the pseudowire. The supported range is 16 to 1048575. Each pseudowire must have a unique inbound MPLS label. 0 means that no label has been defined. The parameter is displayed only when Inbound Label Tagging is ENABLE.
Installation and Operation Manual ³ Chapter 3 Configuration • Pseudowire parameters • Attachment circuit parameters (that is, the parameters controlling the connection of the pseudowire to the internal DS1 port) To configure the pseudowire service parameters: 1. Navigate to the Configuration > Applications > Multi-Service over PSN > PW screen of the desired pseudowire. 2. Select Service Parameters. You will see the Service Parameters screen of the desired pseudowire.
Chapter 3 Configuration Installation and Operation Manual Parameter Function Values Jitter Buffer Specifies the value of the jitter buffer to be used on this pseudowire. The allowed range depends on the framing mode: You should use the shortest feasible buffer, to minimize connection latency. FRAMED: 2500 to 200000 μsec, in 1-μsec steps. This parameter is not displayed for HDLCoPSN pseudowires Far End Type UNFRAMED: 500 to 200000 μsec, in 1-μsec steps.
Installation and Operation Manual Chapter 3 Configuration Parameter Function Values Data OOS Selects the code transmitted by the port during out-of-service periods on the timeslots defined as data timeslots (see the Configuring The available selections are 00 to FF (hexa). Default: 00 Internal DS1 Port Timeslot Utilization section).
Chapter 3 Configuration ³ Installation and Operation Manual To select the timeslots connected to the pseudowire: 1. Navigate to the Configuration > Applications > Multi-Service over PSN > PW > Service Parameters screen of the desired pseudowire. 2. After selecting the prescribed internal DS1 port, select Time Slots. 3. Initially, the screen is empty. Select Add to add the desired number of timeslot selection fields. 4.
Installation and Operation Manual Chapter 3 Configuration 9. Type s to save the configuration. 10. After completing the configuration, the new set of endpoints appear on the Interfaces screen. 11. Repeat the procedure for any additional endpoints. 3.5 Configuring Pseudowires as System Timing References MPW-1 has independent adaptive clock recovery mechanisms for each pseudowire, which recover the original timing (clock rate) of the far end source of each pseudowire.
Chapter 3 Configuration Installation and Operation Manual Parameter Function Values Administrative Status Controls whether the selected recovered clock source is active or not UP — Adaptive clock recovery is enabled. DOWN — Adaptive clock recovery is disabled. This state should be selected as long as the source configuration has not yet been completed, or when it is necessary to stop using this clock source.
Installation and Operation Manual 3.6 Chapter 3 Configuration Viewing Ethernet Flows Associated with Pseudowires After performing the pseudowire configuration activities listed above, you can view the Ethernet traffic flows that are used by pseudowires. For the supervision terminal, use Configuration > Applications > Ethernet Services > Flows (for instructions, refer to the Megaplex-4100 Installation and Operation Manual).
Chapter 3 Configuration 3-34 Viewing Ethernet Flows Associated with Pseudowires Installation and Operation Manual MPW-1 MP-4100 Ver. 2.
Chapter 4 Troubleshooting and Diagnostics This Chapter explains the MPW-1-specific troubleshooting and diagnostic functions. These functions include: • Collection of MPW-1 performance monitoring and status data – presented in Section 4.1. • Detection of configuration (sanity) errors – presented in Section 4.2. This section covers only the MPW-1 specific sanity errors: for other sanity errors, refer to the Megaplex-4100 Installation and Operation Manual.
Chapter 4 Troubleshooting and Diagnostics • Installation and Operation Manual For pseudowires terminated on MPW-1 ports: Status data for each pseudowire Pseudowire transmission statistics The MPW-1 pseudowire performance monitoring functions are accessed after selecting the desired pseudowire under Monitoring > Applications > MultiService over PSN > PW. • When protection is used for MPW-1 ports, and/or for pseudowire connections terminated on MPW-1 ports: protection status.
Installation and Operation Manual Chapter 4 Troubleshooting and Diagnostics Table 4-1. Ethernet Port Physical Layer Status Parameters Parameter Description Connector Type Displays the port connector type: Operation Status • RJ-45 – RJ-45 connector for copper interface. • SFP – in accordance with the installed SFP. • Missing – port equipped with SFP socket, but no SFP is installed.
Chapter 4 Troubleshooting and Diagnostics Installation and Operation Manual 2. On the Ethernet port screen, select Statistics. You will see the Statistics screen for the selected Ethernet port. The screen consists of three pages: To continue to the next page, type n (next) To return to the previous page, type p (previous). Table 4-3 explains the Ethernet port statistics parameters. The information is accumulated continuously while the MPW-1 operates, and is automatically refreshed every few seconds.
Installation and Operation Manual Chapter 4 Troubleshooting and Diagnostics Parameter Description Rx Unicast Frames Total number of good unicast frames received through the corresponding Ethernet port Rx Multicast Frames Total number of good multicast frames received through the corresponding Ethernet port Rx Broadcast Frames Total number of good broadcast frames received through the corresponding Ethernet port Rx 64 Octets Total number of 64-byte frames received through the corresponding Etherne
Chapter 4 Troubleshooting and Diagnostics Installation and Operation Manual Monitoring Pseudowire Services The pseudowire services monitoring functions include: • Status data for each pseudowire terminated on MPW-1 ports • Diagnostic statistics for the current 15-minute interval (interval 0), any previous 15-minute interval within the last 24 hours for which valid performance data exists, and data for the current 24-hour interval. • Transmission performance statistics.
Installation and Operation Manual Chapter 4 Troubleshooting and Diagnostics Parameter Description PW Type Displays the pseudowire type (protocol): TDMoIP CE – Pseudowire using TDMoPSN circuit emulation.
Chapter 4 Troubleshooting and Diagnostics Installation and Operation Manual 2. To display statistics for a selected previous 15-minute interval, select Select Interval. 3. To display the total statistics for the current 24-hour interval, select Total (24 hours). You can clear the displayed statistics (that is, reset the monitoring counters) by typing C: all the counters are simultaneously reset. The counters are also reset when the MPW-1 is powered up.
Installation and Operation Manual Chapter 4 Troubleshooting and Diagnostics Parameter Description Jitter Buffer Underflows Seconds Displays the number of seconds during which at least one jitter buffer underflow event has been detected. MPW-1 is equipped with a Packet Delay Variation Tolerance buffer, also called a “jitter buffer”, which is used to automatically compensate for packet network delay variation (jitter). Each pseudowire has its own jitter buffer.
Chapter 4 Troubleshooting and Diagnostics Installation and Operation Manual Displaying Pseudowire Transmission Statistics The pseudowire transmission statistics enable analyzing pseudowire traffic volume, evaluate the end-to-end transmission quality (as indicated by sequence errors), and jitter buffer performance. By resetting the status data at the desired instant, it is possible to ensure that only current, valid data is taken into consideration.
Installation and Operation Manual Chapter 4 Troubleshooting and Diagnostics Parameter Description Connectivity Status Displays the connectivity status of the selected pseudowire: OK – the pseudowire carries traffic, and both the remote and the local pseudowire endpoints receive Ethernet frames. However, there may be problems such as sequence errors, underflows, overflows, etc., which may be displayed using the Statistics function.
Chapter 4 Troubleshooting and Diagnostics Installation and Operation Manual When a pseudowire is used as a Megaplex-4100 timing reference source, the timing source display includes information on the state of the pseudowire adaptive clock recovery mechanism. ³ To display the pseudowire adaptive clock recovery mechanism state: 1. Navigate to Monitoring > System > Timing. 2. You will see the Timing screen. The information displayed on the screen depends on the currently used timing source.
Installation and Operation Manual 4.2 Chapter 4 Troubleshooting and Diagnostics Detecting Configuration Errors Table 4-8 lists the specific configuration error messages that may generated by Megaplex-4100 for MPW-1 modules, and explains their interpretation. The messages are listed in ascending order of their codes. For other sanity errors, refer to the Megaplex-4100 Installation and Operation Manual. Table 4-8. MPW-1 Specific Error Messages Code Syntax 2100 SAME IP FOR ROUTER IFACE & D.
Chapter 4 Troubleshooting and Diagnostics Code Syntax 2105 IP & NEXT HOP SAME FOR STATIC ROUT Installation and Operation Manual Type Meaning Error This message is generated after the specified static route is updated, and indicates that the next hop IP address and the destination IP address of the route are the same. This is not allowed – the addresses must be different. If the next hop IP address is not needed, leave the default value, 0.0.0.0.
Installation and Operation Manual Code Syntax 2114 NUM OF BYTES IN FRAME EXCEEDS 1440 Chapter 4 Troubleshooting and Diagnostics Type Meaning Error When using the CESoPSN protocol, the maximum number of bytes per packet exceeds the maximum allowed, 1440 bytes.
Chapter 4 Troubleshooting and Diagnostics Code Syntax 2123 V1/V2 PW LABEL DUPLICATED Installation and Operation Manual Type Meaning Error After assigning a label to a pseudowire using payload format V1, do not assign the next label in sequence to a pseudowire using payload format V2 (skip that label). See details given for sanity error 2103 2124 PEER NOT ATTACHED TO PW Error User has created a peer without attaching it to any pseudowire 2125 SLOT/PORT OF R.
Installation and Operation Manual Chapter 4 Troubleshooting and Diagnostics Table 4-9. MPW-1 Specific Alarms Code Message Type Default Severity 028 SL:CH Major It is not allowed to configure the clock quality of the recovered clock to Stratum 1 or Stratum 2 for your MPW-1 version.
Chapter 4 Troubleshooting and Diagnostics 4.4 Installation and Operation Manual Troubleshooting In case a problem occurs with one of the pseudowires carried by the MPW-1 module, check the displayed alarm messages and refer to Section 4.3 and to the Megaplex-4100 Installation and Operation Manual for their interpretation.
Installation and Operation Manual 4.5 Chapter 4 Troubleshooting and Diagnostics Diagnostic Functions The MPW-1 modules support the following diagnostic function: • • Loopbacks on selected timeslots of the internal DS1 ports: Local loopback per timeslot Remote loopback per timeslot Ping test, which enables checking the IP connectivity between MPW-1 packet ports and the pseudowire destination IP address. The following sections explain the loopbacks and tests supported by MPW-1 modules.
Chapter 4 Troubleshooting and Diagnostics Installation and Operation Manual Megaplex-4100 MPW-1 Module To TDM Buses TDM Cross-Connect Matrix Pseudowire Cross-Connect Matrix Packet Processor Ethernet Switch To PSN Figure 4-1.
Installation and Operation Manual Chapter 4 Troubleshooting and Diagnostics Remote Loopback on Selected Internal DS1 Port Timeslots The signal paths for a remote loopback on timeslots are shown in Figure 4-2. Megaplex-4100 MPW-1 Module TDM Cross-Connect Matrix To TDM Buses Pseudowire Cross-Connect Matrix Packet Processor Ethernet Switch To PSN Figure 4-2.
Chapter 4 Troubleshooting and Diagnostics Installation and Operation Manual 4. To activate (start) a loopback on a selected timeslot, select Loop Per Timeslot on the Diagnostics > Physical Layer > I/O > Test Type screen, and then press . 5. You will see now the timeslot test selection screen.
Installation and Operation Manual 4.6 Chapter 4 Troubleshooting and Diagnostics Technical Support Technical support for this product can be obtained from the local distributor from whom it was purchased. For further information, please contact the RAD distributor nearest you or one of RAD's offices worldwide. This information can be found at www.rad.com (offices – About RAD > Worldwide Offices; distributors – Where to Buy > End Users). MPW-1 MP-4100 Ver. 2.
Chapter 4 Troubleshooting and Diagnostics 4-24 Technical Support Installation and Operation Manual MPW-1 MP-4100 Ver. 2.
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