613-000761 Rev.A 070328 TELESYN® Series Services Guide Issue 1 Release 8.0 Copyright © 2007 Allied Telesis Holdings K.K. All rights reserved. Information subject to change without notice.
Introduction Congratulations on your purchase of a Telesyn™ product. This product is part of a family of products that leverages Ethernet switching technology to offer service providers a range of services, including data (low and high speed) video, and voice. Who Should Read This Guide? Service provider staff who are involved with the implementation of data, video, and voice services.
Table of Contents 1 What this Guide Provides- - - - - - - - - - - - - - - - - - - - - - - - -1-1 1.1 Overview - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1-1 1.2 How this Document is Organized- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1.2.1 Definition of Terms - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1.2.
3.2.6 Maintenance - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3-21 3.2.7 Loop Length and Data Rates (Rate vs. Reach) for ADSL Modes- - - - - - - - - - - - - - 3-23 3.3 Video Services Provided by Fast Ethernet/Fiber - - - - - - - - - - - - - - - - - - - - - - - - - - - 3-23 3.3.1 Overview - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3-23 3.3.
6.2 Traffic Management - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 6.2.1 Classifiers - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 6.2.2 QoS (Traffic Queues/Priorities) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 6.2.3 Connection Admission Control (CAC) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 6-1 6-1 6-1 6-2 6.
TOC-4 Telesyn Service Guide (Table of Contents)
1. What this Guide Provides 1.1 Overview The Telesyn documentation set includes the Telesyn User Guide and Reference Guides. These Guides provide the user an overview of the products that make up the Telesyn product set, the features that are provided for these products, and the parameters, measurements, audits, and logs that are used to activate and use these features.
How this Document is Organized Document Sections This document will focus on the technologies that are used to provide these Services 1.2.2 Document Sections For each section, there is an explanation of how to engineer, provision, and implement each service. For each service one or more of the following subsections may be included.
Final Section (Provisioning Example) How this Document is Organized 1.2.3 Final Section (Provisioning Example) The final section of this document provides a complete example that shows a large network that spans several devices, VLANs, and subnetworks, so the user can see how services are combined in real-world scenarios. This helps providers understand how Telesyn products fit into the network and their interactions with other products.
How this Document is Organized 1-4 Telesyn Service Guide (What this Guide Provides) Final Section (Provisioning Example)
2. Optimizing Data Services (SHDSL) 2.1 Overview Typically, SHDSL is used to provide a data services for business applications. It provides symmetric transmission at a 2.3Mbps data rate over one pair of copper telephone wires and supports service for data and voice. Two ports may be joined (bonded) to form a single link with double bandwidth (up to 4.6 Mbps). Two geographically regional modes, Annex-A and Annex-B, are supported.
Overview There are two modes for SHDSL: • SHDSL Normal 2-wire - SHDSL (Symmetric Highspeed Digital Subscriber Line) is an international standard for symmetric DSL that provides for sending and receiving high-speed symmetrical data streams over a single pair of copper wires. • SHDSL Bonding 4-wire -- Bonded mode joins two SHDSL ports resulting in a single port with doubled bandwidth. Adjacent wire pairs (e.g. 0&1, 2&3, etc.) on the SHDSL16 service module must always be used.
Standards Technology Implementation 2.2 Technology Implementation 2.2.1 Standards Standard Compliance Notes G.SHDSL Standard, ITU G.991.2 (Annex A & B) Y N/A ITU G.994.1 (G.handshake, Handshake Procedures for Digital Subscriber Line (DSL) Transceivers) Y N/A 2.2.2 Telesyn Implementation The Telesyn SHDSL16 service module provides symmetric transmission at a 2.3Mbps data rate over one pair of copper telephone wires, providing service for digital data.
Features Telesyn Implementation 2.3 Features Following are the MAP and SM features supported by the SHDSL SM. See the Telesyn User Guide for information on provisioning these features.
Port Numbering TABLE 2-1 Hardware Provisioning Feature Interactions for SHDSL Service (Continued) Feature 2-wire 4-wire UDP Port Source Y Y UDP Port Dest. Y Y VID Y Y InnerVID N N Priority N N IP TOS N N IP DSCP N N TCP Flags N N VID Priority N N VLAN - VC Mapping N N IP Filtering Y Y Notes Traffic Management ARP Filtering Y Y MAC Limiting Y Y Remarking N N Ingress Metering/Policing Y Y Queue Mapping Y Y Egress Rate Limiting N N No.
Software Engineering Interface Association 2.5 Software Engineering 2.5.1 Interface Association In bonded mode, each bonded port (consisting of 2 physical pairs, represented by the even numbered port) has the following associated interfaces: • • • • Two SHDSL interfaces, one for each physical pair One ATM interface is multiplexed over the two “bonded” ports At least one AAL5 Virtual Channel interface for the bonded port At least one ETH interface for the bonded port ETH 5.0.0 5.0.1 5.0.2 AAL5 5.0.
SHDSL Port Audit Software Engineering The following walk-through assumes that card16 is a SHDSL16 card, it has been installed, provisioned, and is in service when the wiremode is modified. Note: The subscriber’s modem must be configured in 4-wire mode for successful 4-wire operation. The steps involved are: 1. Disable the card. 2. Set the card attribute WIREMODE to bonded. 3. Enable the card. 2.5.
Software Engineering SHDSL RMON Statistics 2.5.4 SHDSL RMON Statistics 2.5.4.1 STU-C/STU-R Certain line statistics and messages are designated STU-C or STU-R. From the SHDSL16 interface/port perspective: • STU-C - Statistics gathered on the subscriber-facing side of the SHDSL link. The statistics are collected by the MAP based on data from the modem • STU-R - Statistics gathered from the subscriber’s modem on the network side of the link.
3. Optimizing Video Services 3.1 Overview Video service can be configured using either: • ADSL - This uses the ADSL technology/protocol at the lower protocol layer level that is transported over Ethernet. A typical configuration involves using an ADSL modem at the premesis and an ADSL card at the Telesyn. • Ethernet - This uses ethernet directly. A typical configuration involves using an Residential Gateway (RG) at the premesis and an Ehternet card (FE or FX) at the Telesyn.
Video Services provided by ADSL Overview TN-112-A ADSL 24 PULL FAULT INSERV ! CAT5 PINOUT SEE USER'S MANUAL TN-112-A Ports Slots 0 1 Modem 3 2 A B Modem 4 C D Modem Modem 23 PC Set Top Box A High-speed Internet B Video C Video and High-speed Internet D Multi-video FIGURE 3-1 3-2 Video PC Set Top Box Video *Set Top Box Video *Set Top Box for video - Each STB has its MAC address associated with a slot.port (such as 4.3).
Technology Video Services provided by ADSL 3.2.2 Technology 3.2.2.1 Standards Standard Compliance Notes GLITE - G.992.2 Y N/A GDMT - G.992.1 Y N/A T1413 - ANSI T1.413 Y N/A ADSL2+ (GSPAN) - G.span Y Only if running release 4.0 or earlier version software load in the ADSL card. ADSL2 - G.992.3 Y N/A ADSL2+ - G.992.5 Y N/A READSL2 - G.992.3 Annex L Y N/A 3.2.2.
Video Services provided by ADSL TABLE 3-1 Feature Interactions for ADSL Video Service (Continued) Feature Supported? VLAN Translation N Multicast channels Y MAC Limiting Y MAC Configuration Y DHCP Relay Y Link Recovery (STP) Y (RSTP) Y (LAG - Static) Y EPSR Y QOS Classifier Ethernet format Y IP Protocol Y IP Source Y IP Destination Y LSAP Y MAC Source Y MAC Dest. Y Layer 2 Protocol Y TCP Port Source Y TCP Port Dest. Y UDP Port Source Y UDP Port Dest.
Network Engineering TABLE 3-1 Video Services provided by ADSL Feature Interactions for ADSL Video Service (Continued) Feature Supported? IP Filtering Y ARP Filtering Y MAC Limiting Y Remarking N Ingress Metering/Policing Y Queue Mapping Y Egress Rate Limiting N No. of Queues 8 ACL Y Notes 3.2.4 Network Engineering The following rules should be followed when determining the number of set top boxes to provision on a port. 3.2.4.
Video Services provided by ADSL Network Engineering • bandwidth for Electronic Programming Guide (EPG) and emergency action channels • bandwidth for data.
Network Engineering Video Services provided by ADSL Some Video encoders produce inherently bursty data streams, particularly those which attempt to rate-limit digital satellite channels. This must be accounted for in the calculations by assuming that all STBs on the ADSL16 could be watching a different “bursty” channel. Again, the user must assume a 100% non-blocking engineering rule for bandwidth in order to avoid video disruption for the customer.
Video Services provided by ADSL Network Engineering 3.2.4.2.
Network Engineering TABLE 3-2 Video Services provided by ADSL Calculating ADSL16 Loop Values (Continued) Service Attribute (Used in Calculations) Value Notes Totals Maximum Total Video Rate 7,385,802 bps (((Video Rate+Audio Rate+Encoder Overhead Rate+IP Frame Overhead Rate)*(1+Video Burst Factor/100))*Number of STB)+EPG Rate Minimum Total Video Rate 6,996,002 bps (Video Rate+Audio Rate+Encoder Overhead Rate+IP Frame Overhead Rate)*Number of STB) Total Voice Rate 0 bps Maximum Data Burst Rat
Video Services provided by ADSL Software Engineering 3.2.4.3 Engineering of STBs for the ADSL24 Calculations for the maximum number of STBs per port are the same for the ADSL24 SM as those discussed above for the ADSL16 and ADSL8S. Refer to Figure 3.2.4.2 for more information. 3 STBs per ADSL24 port is the norm. 3.2.4.
Software Engineering TABLE 3-3 Video Services provided by ADSL Port Attributes for Video Service Attribute Provisioning Guideline Reference Allowed IP Address Ranges The IP Filtering feature allows upstream filtering of subscriber devices (STBs and PCs for example) based on an IP address or range of IP addresses. If this is not configured correctly, a subscriber may not be able to receive service. See the Telesyn User Guide, section Traffic Management.
Video Services provided by ADSL TABLE 3-4 Software Engineering Tasks for Providing Quality ADSL Video Service Task Attribute Telesyn NMS Interface Telesyn (CLI) Interface Port Provisioning Customer ID The Port Management Form is accessed by highlighting a Telesyn 7000/9000 icon and following these steps: Enter a DESCRIPTION value in the SET INTERFCE command. 1. Select Provision -> Port Management 2. In the Port Management form, select a port and then Provision. 3.
Software Engineering TABLE 3-4 Video Services provided by ADSL Tasks for Providing Quality ADSL Video Service (Continued) Task Attribute Telesyn NMS Interface Telesyn (CLI) Interface Port Monitoring Errored Seconds (ES) In the Network Inventory node, select Ports View the ESs with the SHOW PORT PMON command. Right Click a Customer ID and select View Port In the ADSL Port Management form, select the ADSL Statistics tab and Enable Statistics to activate.
Video Services provided by ADSL Software Engineering 3.2.5.2 ADSL Loop Quality Audit Without this audit, an ADSL port would detect a Loss of Link and would try to re-enable the link. In applications such as video, however, a degradation (rather than a loss) of the loop quality could still make the video unusable. With this audit, whenever an ADSL loop experiences a degradation in quality (high Errored Seconds) it will be detected by the audit and the port will be disabled and enabled to retrain the link.
Software Engineering Video Services provided by ADSL In addition to the monitoring of ES that is done by the audit, ES should be monitored by the network engineer. A threshold should be set at 100 ES/hour to monitor both the quality of the loop and the performance of the audit.
Video Services provided by ADSL Software Engineering Table 3-7 describes the counters.
Software Engineering TABLE 3-8 Video Services provided by ADSL RMON Statistics (Continued) Statistic ifOutOctets Service Module ADSL8S/16 ADSL24 TX TX ifOutUcastPkts TX TX ifOutNUcastPkts TX TX ifOutDiscards TX TX ifOutErrors TX TX etherStatsDropEvents Always 0 RX etherStatsBroadcastPkts TX Sum of RX & TX etherStatsMulticastPkts TX Sum of RX & TX etherStatsUndersizePkts Always 0 RX etherStatsFragments Always 0 RX etherStatsPkts64Octets Always 0 Sum of RX & TX etherSta
Video Services provided by ADSL TABLE 3-8 Software Engineering RMON Statistics (Continued) Statistic Service Module ADSL8S/16 ADSL24 etherStatsPkts65to127Octets Always 0 Sum of RX & TX etherStatsPkts128to255Octets Always 0 Sum of RX & TX etherStatsPkts256to511Octets Always 0 Sum of RX & TX etherStatsPkts512to1023Octets Always 0 Sum of RX & TX etherStatsPkts1024to1518Octets Always 0 Sum of RX & TX etherStatsOversizePkts Always 0 RX etherStatsJabbers Always 0 RX etherStatsOctets TX
Software Engineering TABLE 3-9 Video Services provided by ADSL ADSL (PMON) Statistics (Continued) Statistic Value Description adslAtucThresh15MinLPRs 0-900 The number of Loss of Power Seconds encountered by an ADSL interface within any given 15 minutes performance data collection period, which causes the SNMP agent to send an adslAtucPerfLprsThreshTrap. One trap will be sent per interval per interface. A value of `0' will disable the trap and the log will disable the trap and the log.
Video Services provided by ADSL TABLE 3-9 Maintenance ADSL (PMON) Statistics (Continued) Statistic Value Description adslAtucThresh15MinSesL 0-900 The first time the value of the corresponding instance of adslAtucPerf15MinSesL reaches or exceeds this value within a given 15-minute performance data collection period, an adslAtucSesLThreshTrap notification will be generated. The value '0' will disable the notification. The default value of this object is '0'.
Maintenance Video Services provided by ADSL 3.2.6.2 Multicast Logs Table 3-10 lists the log messages associated with the multicast limits in the Telesyn product. TABLE 3-10 Multicast Logs Log Message Meaning Action / Reference High Water Mark per Card Exceeded The card is coming close to the IGMP group limit. The default is 20. No action is required, although this is a warning.
Video Services provided by ADSL Loop Length and Data Rates (Rate vs. Reach) for ADSL018 2003-07-30 15:26:42 4217 OTHER Forced retrain of the port (Slot.Port:15.8) due to degradation of loop quality ("excessive" ES) above acceptable thresholds. ADSL019 2003-07-30 15:26:42 4216 OTHER Force retrain of the port (Slot.Port:15.8) due to the port's inability to connect (attain SHOWTIME) after X handshake attempts. ADSL020 2003-07-30 15:26:42 4215 OTHER Forced retrain of the port (Slot.Port:15.
Overview Video Services Provided by Fast Ethernet/Fiber FIGURE 3-3 Rate vs Reach for ADSL modes 3.3 Video Services Provided by Fast Ethernet/Fiber 3.3.1 Overview Figure 3-4 shows the Telesyn copper Ethernet and fiber line product configuration. It shows the customer interface and how video services are configured. System components include the FE10 and FX10 (FE and FX) cards. The residential gateway provides the fiber termination. For this example, the fiber line FX10 card is illustrated.
Video Services Provided by Fast Ethernet/Fiber Technology TN-100-A TN-104-A FX10 FE10 FX PULL FAULT INSERV TN-104-A TN-100-A Ports Ports 0 1 3 2 A B PC Set Top Box A High-speed Internet B Video C Video and High-speed Internet D Multi-video FIGURE 3-4 4 C Residential Gateway PC 9 D Set Top Box Video Video Residential Gateway *Set Top Box Video *Set Top Box for video - Each STB has its MAC address associated with a slot.port (such as 5.3).
Software Engineering Video Services Provided by Fast Ethernet/Fiber • overhead for transmitting over the line • bandwidth for Electronic Programming Guide (EPG) and emergency action channels • bandwidth for data 3.3.4.2 FE10/FX10 IGMP Video Configuration For each ADSL and fiber interface, the following can be configured for the specified Telesyn: • Three STB with Five streams per STB 3.3.5 Software Engineering 3.3.5.
Video Services Provided by Fast Ethernet/Fiber Software Engineering Table 3-13 lists these tasks, what attributes are provisioned for these tasks, and the steps taken at either the Network Management System (NMS) or local interface (CLI) to provide values for these attributes.
Software Engineering TABLE 3-12 Video Services Provided by Fast Ethernet/Fiber Fast Ethernet and Fiber-based Port Attributes for Video Service FEPORT Attribute FXPORT Attribute IP Filter Ranges MAC Limiting Provisioning Guideline Reference IP Filter Ranges The IP Filtering feature allows upstream filtering of subscriber devices (STBs and PCs for example) based on an IP address or range of IP addresses. If this is not configured correctly, a subscriber may not be able to receive service.
Video Services Provided by Fast Ethernet/Fiber Software Engineering . TABLE 3-13 Tasks for Providing Quality Fast Ethernet and Fiber-based Video Service Task FEPORT Attribute FXPORT Attribute Port Provisioning Customer ID Customer ID Telesyn NMS Interface Telesyn 9000 (CLI) Interface The Port Management Form is accessed by highlighting a Telesyn 9000 icon and following these steps: Enter a DESCRIPTION value in the SET PORT command. 1. Select Provision -> Port Management 2.
Software Engineering TABLE 3-13 Task Port Monitoring Video Services Provided by Fast Ethernet/Fiber Tasks for Providing Quality Fast Ethernet and Fiber-based Video Service (Continued) FEPORT Attribute FXPORT Attribute RMON RMON Statistics Statistics Telesyn NMS Interface In the Network Inventory node, select Customer Ports Highlight a Customer ID and select Customer -> View Customer Port In the Port Management form, select the Statistics tab and Enable to activate.
Video Services Provided by Fast Ethernet/Fiber 3.3.5.2 Performance Data monitoring & Alarm thresholds 3.3.5.2.1 RMON Statistics The following table details RMON statistics for FE10 and FX10 cards.
Software Engineering TABLE 3-14 Video Services Provided by Fast Ethernet/Fiber RMON Statistics (Continued) Statistic Service Module FE10/FX10 etherStatsOctets Sum of RX & TX etherStatsPkts Sum of RX & TX etherStatsCollisions TX etherStatsCRCAlignErrors RX High Capacity etherStatsDropEvents RX etherStatsBroadcastPkts Sum of RX & TX etherStatsMulticastPkts Sum of RX & TX etherStatsUndersizePkts RX etherStatsFragments RX etherStatsPkts64Octets Sum of RX & TX etherStatsPkts65to127Octet
Video Services Provided by Fast Ethernet/Fiber Software Engineering Thresholds can be set for the RMON statistics. Separate thresholds should be set as follows in this system response to the SET INTERFACE command on a FE port (same for a FX port): TABLE 3-15 RMON Statistics Statistic Description BROADCAST The total number of good packets received that were directed to the broadcast address.
Software Engineering TABLE 3-15 Video Services Provided by Fast Ethernet/Fiber RMON Statistics (Continued) Statistic Description PKTS512TO1023OCTETS The total number of packets (including bad packets) received that were between 512 and 1023 octets in length inclusive (excluding framing bits but including FCS octets PKTS64OCTETS The total number of packets (including bad packets) received that were 64 octets in length (excluding framing bits but including FCS octets).
Video Services Provided by Fast Ethernet/Fiber Maintenance 3.3.6 Maintenance 3.3.6.1 Logs 3.3.6.1.1 Multicast Logs Table 3-17 lists the log messages associated with the multicast limits in the Telesyn product. TABLE 3-17 Multicast Logs Log Message Meaning Action / Reference High Water Mark per Card Exceeded The card is coming close to the IGMP group limit. The default is 20. No action is required, although this is a warning.
4. Optimizing Voice Services 4.1 Overview Voice service can be provided with the following configurations: • POTS with a call agent using the POTS24 card In this configuration, the POTS24 card supports VoIP using Media Gateway Control Protocol (MGCP) as the call control protocol to the network gateway as defined in the Line Control Signalling (LCS) architecture. The Telesyn POTS24 card transforms analog POTS calls into IP packets and forward these packets onto an Ethernet network.
POTS Only with Call Agent (POTS24 Card) Telesyn MAP configured with POTS24 Cards Technology Central Office ‘ RTP Ethernet Uplink (Voice) MGCP (Control) Gateway / Softswitch Provider Premises GR-303/ TR-008 Subscriber Premises Phone Dial-up Analog Modem Analog loop PC FIGURE 4-1 Voice Service with Call Agent / POTS24 - Physical View 4.2.2 Technology 4.2.2.1 Standards Standard Compliance Notes PacketCable LCS Y N/A GR-909 Y N/A GR-57 Y N/A G.711 Y N/A V.34 Y N/A V.
Features POTS Only with Call Agent (POTS24 Card) 4.2.3 Features 4.2.3.
POTS Only with Call Agent (POTS24 Card) TABLE 4-1 Network Engineering Feature Interactions for Voice Service (Continued) Feature Supported? UDP Port Source N/A UDP Port Dest. N/A VID N/A InnerVID N/A Priority N/A IP TOS N/A IP DSCP N/A TCP Flags N/A VID Priority N/A Notes Traffic Management VLAN - VC Mapping N/A IP Filtering N/A ARP Filtering N MAC Limiting N/A Remarking N/A Ingress Metering/Policing Y Queue Mapping Y Egress Rate Limiting N No.
Hardware Provisioning POTS Only with Call Agent (POTS24 Card) 4.2.4.1 Line Supervision Mode Only loop start is supported; ground start is not supported.Card Attributes 4.2.4.
POTS Only with Call Agent (POTS24 Card) Software Engineering 4.2.5.3 Configuring MGCP Attributes The MGCP (Media Gateway Control Protocol, RFC 3435) configuration specifies how the card will communicate with the network call agent for call signaling. Once the IP provisioning is done for the card’s virtual Ethernet interface, the MGCP attributes can be provisioned. Note: Any modification of MGCP parameters requires the card to be disabled. 4.2.5.
Overview Derived Voice (Residential Gateway) The statistics are available anytime the POTS24 card is operationally up. All statistics are cleared when the card out-of-service for any reason. The counters are enabled when the card becomes operational and they continue to increment as long as the card remains in-service. 4.2.6.2 RTP Statistics Statistics supported for the RTP application running on the POTS24 card are defined in the ATN SNMP Enterprise MIB.
Derived Voice (Residential Gateway) 4-8 Telesyn Service Guide (Optimizing Voice Services) Telesyn Implementation
5. Circuit Emulation Service (CES) 5.1 Overview In release 5.0, “Pass-thru” Circuit Emulation Service for both E1 and DS1 circuits is supported on the CES8 SM. In Pass-Thru, the whole DS1/E1 frame is passed. The Telesyn does not terminate/interpret the FDL in Pass-Thru. The only layer terminated at the MAP is the line layer. 5.2 Technology Refer to the Telesyn Component Specification for DS1/E1 standards. 5.3 Features Since Circuit Emulation is pass-through service, many of the features listed in are N/A.
Features TABLE 5-1 Feature Interactions for Circuit Emulation Service (Continued) Feature Supported? DHCP Relay N/A Link Recovery (STP) Y (RSTP) Y (LAG - Static) Y EPSR Y QOS Classifier Ethernet format N/A IP Protocol N/A IP Source N/A IP Destination N/A LSAP N/A MAC Source N/A MAC Dest. N/A Layer 2 Protocol N/A TCP Port Source N/A TCP Port Dest. N/A UDP Port Source N/A UDP Port Dest.
Features TABLE 5-1 Feature Interactions for Circuit Emulation Service (Continued) Feature Supported? Ingress Metering/Policing Y Queue Mapping Y Egress Rate Limiting Y No.
Network Engineering Packet Network Considerations 5.4 Network Engineering 5.4.1 Packet Network Considerations Transport robustness is important since many characteristics of packet networks are not compatible to constant bit rate services. Packet network congestion, blocking, QoS prioritization, and multiple paths with varying latency, can lead to: • • • • jitter lost packets duplicate packets packets out of sequence.
Packet Network Considerations Network Engineering current packet has been played out. The CES8 provides buffers that can be configured to absorb up to 60ms of PDV. Increasing the depth of these buffers adds latency and thus delay to the T1. As mentioned above in the discussion on packet size, latency may not degrade some data services but voice services may require echo cancellation to handle excessive delays. 5.4.1.3 End-to-End Latency Many services carried over T1 are delay sensitive.
Network Engineering NUMBYTES and Bandwidth Correlation 5.4.2 NUMBYTES and Bandwidth Correlation FIGURE 5-1 PSPAN Bandwidth vs. NUMBYTES Table 6: RTP=ON RTP=OFF NUMBYTES Time(ms) per PKT PKT Size Bandwidth (bps) % Overhead PKT Size Bandwidth (bps) % Overhead 16 0.08 82 7,913,000 412.5% 70 6,755,000 337.5% 32 0.17 98 4,728,500 206.3% 86 4,149,500 168.8% 62 0.32 128 3,187,613 106.5% 116 2,888,774 87.1% 193 1.00 259 2,072,000 34.2% 247 1,976,000 28.0% 300 1.
NUMBYTES vs. Minimum / Maximum Jitter Values Network Engineering 5.4.3 NUMBYTES vs. Minimum / Maximum Jitter Values Figure 5-2 shows graphically the minimum and maximum allowable jitter values for the NUMBYTES that are passed in each packet.
Network Engineering TABLE 5-1 Jitter Values NUMBYTES 5-8 NUMBYTES vs.
Network Engineering TABLE 5-1 Jitter Values (Continued) NUMBYTES Time(us) per PKT PKT Size MinJitter(us) MaxJitter Tgt (us) 624 3233 686 6466 51728 640 3316 702 6632 53056 656 3398 718 6796 54368 672 3481 734 6962 55696 688 3564 750 7128 57024 704 3647 766 7294 58352 720 3730 782 7460 59680 736 3813 798 7626 61008 752 3896 814 7792 62336 768 3979 830 7958 63664 784 4062 846 8124 64992 800 4145 862 8290 66320 816 4227 878 8454 67632 832
Software Engineering Statistics 5.5 Software Engineering 5.5.1 Statistics As explained in the User Guide, CES in Release 5.0 includes the following components: • IP Address/VLAN - This makes up the IP Endpoint or IP Interface of the card (such as VLAN:402.0). • DS1/E1 Port - The connecting point for the DS1 or E1 link. • PSPAN - The IP-based encapsulation of the DS1 packets. This is the IP Endpoint and the unique PSPAN ID (such as 402.0.1). Note: In Release 5.
Statistics Software Engineering TABLE 5-2 PMON Statistics for DS1/E1 Interfaces Statistic Meaning Description UAS Unavailable Seconds The number of seconds the line was unavailable CV Line Coding Violations A count of Line Coding Violations Threshold Setting Historical Trends to Watch 5.5.1.3 PSPAN Statistics (PMON) The collection rules for PSPAN statistics are similar to other PMON statistics (15-minute clock aligned collection windows).
Software Engineering TABLE 5-3 Statistics PMON Statistics for DS1/E1 Interfaces Statistic Meaning Description PacketsSent Number of packets transmitted Used to verify that the expected packets are being sent for this pspan while other p-spans are also in operation. BytesSent Number of bytes transmitted Used to verify that the expected number of bytes are being sent for this p-span while other p-spans are also in operation.
6. Ethernet Passive Optical Network (EPON) 6.1 Overview Refer to the Telesyn User Guide for an overview of the Ethernet Passive Optical Network implementation using the EPON2 card and the iMG/RG that includes the ONU. 6.2 Traffic Management This subsection highlights how traffic management is handled for the EPON configuration. 6.2.1 Classifiers Filtering is based on VLAN and IPSOURCE address.
Traffic Management Connection Admission Control (CAC) At points outside the OLT-ONU, p-bits/classifiers may still used at various points; moreover, these are passed through the OLT-ONU. This has the following results: • In the upstream direction, traffic is passed with no controls from the UNI to the ONU.
Connection Admission Control (CAC) 2. Feature Interaction Availability of priority categories - This differentiates among three categories of traffic at the queues from the OLT upstream to the EPON switching fabric. There is a number of links allowed in each category at initialization time.
Feature Interaction 6-4 Connection Admission Control (CAC) Telesyn Service Guide (Ethernet Passive Optical Network (EPON))
7. Special Network Configurations 7.1 Overview When configuring the overall network that is going to support the voice, video, and data services, certain topologies (such as RSTP and EPSR) are used to provide a level of protection so that services are not affected in case of an outage of a network component, or that there is a minimum of service interruption. These topologies as they relate to the Telesyn features are explained in the Telesyn User Guide.
FE10 Upstream Interface TABLE 7-1 Feature Interaction Feature Interactions for FE10 Upstream - Voice, Data, and Video Service (Continued) Feature Supported? IGMPv2 - IGMP Snooping Y HVLAN N VLAN Translation N Multicast channels Y MAC Limiting Y MAC Configuration Y DHCP Relay Y Notes By default, IGMP snooping is enabled on FE/FX ports. By default, DHCP relay is disabled, and the user can enable it so the network FE/FX can be the interface to the DHCP server.
Feature Interaction TABLE 7-1 FE10 Upstream Interface Feature Interactions for FE10 Upstream - Voice, Data, and Video Service (Continued) Feature Supported? TCP Flags N VID Priority N Notes Traffic Management VLAN - VC Mapping Y IP Filtering Y ARP Filtering Y MAC Limiting Y Remarking N Ingress Metering/Policing Y Queue Mapping Y Egress Rate Limiting N No. of Queues 8 ACL Y Note: The 1000 Mbps FE10 egress rate is limited to the DS3 transport rate (40-44Mbps).
FE10 Upstream Interface 7-4 Telesyn Service Guide (Special Network Configurations) Feature Interaction
8. Optimizing All Services (Triple Play) 8.1 Overview Using NMS for steps, so will use “wizards” whenever possible. Really boils down to Network Services Data node and Provision Card Form. 8.1.1 Sample Configuration - Network Level This figure will be shown in various ways to highlight what is being provisioned.
Provisioning Example - Overview Sample Configuration - Network Level 8.2 Provisioning Example - Overview Figure 8-1 is a mapping of all the tasks involved in setting up a multi-service system, and includes a topology that provides a level of protection for each service. The NMS menu selections are in bold/italic, with -> for accessing a submenu, such as Policy -> Add Policy. Following this table are the detailed steps involved to datafill a sample configuration.
Sample Configuration - Network Level TABLE 8-1 Provisioning Example - Overview Major Tasks to Configure Triple Play for Telesyn Devices CLI / NMS (Highlight where CLI only) Task Create QoS Policies Create Profiles for Port Types Main Steps Reference For ADSL, this would be included in a Triple Play Policy. 1. Create QoS Traffic Flows 2. Create QoS Priority Action 3. Create QoS Traffic Action 4. Create QoS Policy Action 5. Define a QoS Policy 1. Create Profile for ADSL Port 2.
Provisioning Example - Overview TABLE 8-1 Sample Configuration - Network Level Major Tasks to Configure Triple Play for Telesyn Devices Task Provision Video/Data Service CLI / NMS (Highlight where CLI only) On Provision New Triple Play Customer Form, Video/Data Service Configuration Panel, enter values for Video/ Data Service Configuration. Main Steps For ADSL, Profiles associated with ADSL are automatically included in Profile pull-down. If VLAN is included in Profile, VLAN settings are greyed out.
