MDS920C-10BT RACK-CARD MDS921AE-10BT STANDALONE MDS922AE-10BT MINI-RACK Ethernet Router / Bridge User Manual Version 1.0 Revision 11 February 2003 © Copyright ©2002 by BLACK BOX Network Services AG.
VERSION CONTROL.......................................................................................................... 5 1 INTRODUCTION........................................................................................................ 6 3 SPECIFICATIONS ................................FEHLER! TEXTMARKE NICHT DEFINIERT. 4 TECHNOLOGIES....................................................................................................... 9 4.1 xDSL technology, background .........................
8.3 8.2.3 Default command .............................................................................. 48 8.2.4 Lan command.................................................................................... 48 8.2.5 List command .................................................................................... 49 8.2.6 Manage command............................................................................. 50 8.2.7 Mode command........................................................................
10.1.3 SHDSL interface................................................................................ 80 10.1.4 Network interface .............................................................................. 81 10.2 Power supply................................................................................................... 81 10.2.1 Protection against dangerous affects ................................................ 82 10.2.2 Surge safety ...............................................................
VERSION CONTROL version Date Major changes to previous version 0.1 30. Jul. 2001 First version 0.2 9. Sept. 2001 Pre-official version Chapter 4.2 is changed Small changes throughout the text 1.0 Version: 1.0 11. Feb. 2003 Layout, Small changes throughout the text Page.
1 INTRODUCTION MDS921AE-10BT, MDS920C-10BT and MDS922AE-10BT network and line termination units are a part of the Black Box PAM family (hereafter family) constructed for the organization of highspeed communication channels over one pair copper lines (DSL). This family of units represents G.shdsl modems that have 64 – 2312-kbit/s speed of data transfer.
The units have all the possibilities for monitoring and management. Different management protocols that are used in the firmware of the family allow one to implement: 1. local management using a computer, which supports the VT 100 type emulation of the terminal; 2. remote monitoring and configuring over Telnet protocol; 3. remote monitoring and configuring over HTTP protocol; 4.
3 SPECIFICATION • High-speed symmetric data transfer over a 135-ohm physical twisted copper pair according to G.shdsl ITU G.991.
4 TECHNOLOGIES 4.1 xDSL technology, background xDSL technology appeared due to the growing user’s demand to high-speed digital stream transfer over telephone copper pairs. Operators had to organize the interconnection of backbone stations of cellular networks, Digital Loop Carrier systems, interstation connection and to provide high-speed Internet access at minimal expenses. In these circumstances, it was reasonable to use the existing telephone cables.
Transmission rate • Downstream • up to 6–8 Mbit/s • up to 1.5 Mbit/s for G.lite • Upstream • up to 640 Kbit/s • up to 512 Kbit/s for G.lite Line code • DMT • CAP Number of pairs • one pair Usage • public network operators (PNO) and Internet service providers Restrictions • Asymmetry 4.1.2 ISDN DSL technology The IDSL technology is based on the ISDN technology, but without switching.
4.1.2.1 IDSL in brief Standard • T1.601 • interoperability between equipment of different manufacturers at the U interface layer Transmission rate • up to 144 Kbit/s • up to 64 Kbit/s + voice channel in NTU-128 Voice Line code • 2B1Q Transmission medium • one pair • possibility of the regenerator’s installation Usage • PNOs and providers of Internet services • commercial operators • integration of LANs Restrictions • low speed • impossibility of transmission rate adjusting 4.1.
4.1.3.
4.1.4 EXTRAns technology xDSL solutions are widely used for the organization of interstation trunk lines, creation of routes for multiplexers and routers. But the wide spread of analog systems with frequency division multiplexing/demultiplexing of the K-60, K-24, K-12 types makes it difficult to use standard xDSL solutions over backbone (trunk lines) and zone cables of the different types with the wire diameter of 0.9–1.2, if one of the analog systems works over cables.
• high-speed access to SDH networks Restrictions • two pairs are used for full stream transmission 4.1.5 Multispeed DSL (MDSL) technology The term SDSL was used for several years on the market. It was referred to all solutions meant for the synchronous digital stream transmission over one pair. This technology supports the possibility of line speed regulation over long-haul distances. The technology is implemented in MDSL and MSDSL, the latter one having a different line code.
Restrictions • the shortest distance of data transfer over one wire compared to other technologies 4.1.6 Multispeed DSL (MSDSL) technology The MSDSL technology is a further development of the MDSL technology. It allows to run over longer distances because of using a more progressive line code – CAP. In addition, it is possible to install a CAP-splitter, which allows using the copper pair for both data transfer and telephoning connection. The technology supports the installation of a line regenerator.
• creation of trunk lines between PABX • increase of capacity of subscribers’ lines with the help of Digital Loop Carrier systems • high-speed access to SDH networks Restrictions • absence of compatibility with the equipment of other manufacturers • interference with other xDSL services 4.1.7 G.shdsl technology The G.shdsl technology was engineered as a universal technology of synchronous digital data transmission. It became an international standard for symmetric systems.
• access to Internet • integration of LANs • creation of trunk lines between PABX • increase of subscribers’ lines with the help of Digital Loop Carrier systems • high-speed access to SDH networks 4.2 Local area network integration. Access to Internet Local area networks facilitate documentation-processing, access to data in modern companies but the Ethernet technology does not allow to transfer data at long distances and create Wide Area Networks (WANs).
Fig.1 Correspondence of TCP/IP layers with the OSI model layers Layer III The next layer (Layer III) is a layer of internetwork interconnection, which enables packet transmission using different transmission media, LANs, WANs, xDSL, etc. The Internet Protocol is used as the primary protocol of this layer (session layer in terms of the OSI model). All protocols, connected with data collecting and updating of routing tables, such as Routing Internet Protocol (RIP) refer to this layer.
4.2.2 Address assignment in IP networks Any IP-network device is characterized by the addresses of three groups: Physical address. It is a hexadecimal MAC address of the network adapter or port. The MAC address is unique and is 6-byte long: the first 3 bytes are the manufacturer’s identifier and the other 3 bytes are uniquely assigned by the manufacturer itself. For example, 18-B7-34-39-AA-FC. Network address (IP address).
4 bytes 1 2 3 4 Class А 0 Network № Node № Class B 1 0 Network № Node № Class C 1 1 0 Network № Node № Class D 1 1 1 0 Multicast address Class E 1 1 1 1 0 Reserved Masks Network mask is a number, consisting of four bytes. It is a decimal number divided by dots, and it is used together with the IP address. A mask usually contains decimal numbers – 255. The use of masks allows providing users with narrow address ranges compared to networks of different classes.
The dynamic address assignment allows one to create IP networks in which the number of nodes exceeds the number of the IP addresses administrator has. 4.2.3 Bridging of local networks Bridges are the simplest devices for logical network structuring. They divide the transmission network medium into segments (logical segments), forwarding data from one segment to another, if such a transmission is necessary, i.e. if the destination address belongs to another subnet.
address table of a simple network consisting of two segments. Fig.2 Simple network MAC address Port 1 2 3 Port 1 4 Port 2 Segment 1 Segment 2 Bridge 1 1 2 1 3 2 4 2 Each port work as an end node of the network segment. Originally, the bridge does not know what nodes with what MAC addresses are connected to each of its port. That is why it sends any received frame to all ports excluding the port from which the frame was received.
Fig.3 Network with loops Suppose that host A sends an information unit to host B. Both bridges receive this information unit and conclude that host A belongs to network 2. Unfortunately, after host B receives two copies of the information unit from host A, both bridges again receive the same information unit onto their interfaces with network 1, because all hosts receive all messages of broadcast LANs. In some cases bridges change their internal tables to indicate that host A is on network 1.
Fig. 4 Network before running STA The STA calls for each bridge to be assigned a unique identifier. Typically, this identifier is one of the bridge's Media Access Control (MAC) addresses plus a priority. Each port in every bridge is also assigned a unique (within that bridge) identifier (typically, its own MAC address). Finally, each bridge port is associated with a path cost. The path cost represents the cost of transmitting a unit onto a LAN through that port. In Fig.
Fig. 5: Network after running STA The spanning-tree calculation occurs when the bridge is powered up and whenever a topology change is detected. The calculation requires communication between the spanning-tree bridges, which is implemented through configuration messages.
Optimal path determination The determination of the optimal path is based on different standards of measurement, for example, path length, and metric. Routing algorithms calculate path indexes to determine the optimal path to destination. To facilitate the process of path determination, routing algorithms initialize and maintain routing tables, which contain the routing information. This information changes depending on the routing algorithm used.
Switching Switching algorithms are relatively simple and are basically the same for most routing protocols. In most cases, a host determines the necessity of sending a packet to another host. Having received a router's address, the source host sends a packet addressed specially to a router's physical (MAC layer) address, however, the packet contains (network-layer) protocol address of the destination host.
4.2.4.2 Routing algorithms, RIP The rate of information processing and its trustworthiness depend on the routing algorithm. But more complicated and high-speed algorithms imply high requirements to the router’s capacity. Static routing algorithms are the simplest ones. The network administrator establishes routing tables, and they do not change until the network administrator changes them. Algorithms of static routers are simple to design and they work well in simple networks with low traffic.
If there is a necessity to divide traffic on the basis of TCP ports, NAT makes it possible to map local addresses with one external address using TCP load distribution function. NAT functioning The NAT technology defines, as it is stated in the RFC 1631 standard, the ways of IP address translation, used in one network into another network addresses. There exist three basic principles of address translation: static, dynamic and masquerading.
Let us illustrate PAT functioning: There is an internal network 191.167.0 and a router with a MAC address 193.200.150.5. A host from the internal network with an address 191.167.0.10 and TCP source port 1243 addresses web-server 205.131.1.1. While passing through the NAT interface, the outcoming packet will have the following changes: in the IP header, the source address is changed and the source port in the TCP header is changed from 1243 into, for example, 62300.
5 DESCRIPTION OF THE DEVICE 5.1.1 Background MDS92xxx-10BT is a device of Digital Subscriber Line (DSL) system used for data transmission over symmetrical physical copper lines. The TC-PAM line encoding technology (G.shdsl standard), which was accepted by ITU as the only world standard of high-speed symmetrical data transmission over one pair, is used to transmit data over a twisted pair.
Common Bus To DSL line CPU RS-232 RAM DSP AFT Ethernet ROM Ethernet 10 BaseT +5 V 12 V DC/DC +3,3 V RS232 Monitor Fig. 15 Structural schematic of MDS92xxx-10BT The CPU enables control of all devices’ functioning units in accordance with the firmware and the parameters configured. The CPU supports the Ethernet and RS-232 interfaces. The memory unit keeps the control micro program, temporary values and buffers Ethernet packets.
of the incoming signal. The line interface includes a scheme with integrated into it Digital-to-Analog and Analog-to-Digital Converters, input and output amplifiers with a programmed amplification and analog filters that are used to convert digital data into a signal and visa versa. The device is powered from an in-built 3.3-V or 5-V AC-DC/DC adapter. The input voltage of the secondary power supply source is 38…72.0 V or 200+/-10% VAC.
5.2.2 Ethernet 10BaseT interface The Ethernet interface functions depend on the device operation modes. Bridge mode The bridge mode is used to connect LANs. The algorithm of the Ethernet traffic encapsulation into ATM is used in accordance with RFC 1483. The MDS92xxx-10BT device implements both the transparent bridge or spanning tree algorithms. These algorithms are described in detail in “Bridging of local networks”.
5.3 Description of LEDs The following LEDs are used to display normal operation condition and alarm condition.
6 MECHANIC DESIGN The Black Box devices have three mechanic designs: 1. Sub-Rack is a unit to be mounted in 19’’ chassis (MDS920AE-RMDC); 2. Mini-Rack is a unit of 1U height (44.5 mm) to be mounted in 19’’ rack or a cabinet; 3. Stand Alone is a compact unit to be mounted on the tabletop/desktop or another horizontal surface. Sub-Rack From the constructive point of view, MDS92xxx-10BT, NG consists of two printed circuit boards (PCBs) and a front panel. Fig. 16 shows the front panel.
Fig. 16 MDS920C-10BT, NG, front panel Version: 1.0 Page.
Mini-Rack From the constructive point of view, MDS922AE-10BT represents a case made of stainless steel and containing the basic elements of the device. Fig. 17 shows the front panel.
Fig. 17 MDS922AE-10BT, front panel Version: 1.0 Page.
Stand Alone From the constructive point of view, MDS921AE-10BT represents a case made of shockproof polystyrene to withstand harsh environmental conditions and containing the basic elements of the device. The power supply unit represents an external power supply unit in the form of a plug.
7 EQUIPMENT INSTALLATION The installation and connection of the Black Box PAM devices is implemented in the following order: • before the installation, make sure that the set is complete; • mount the device in 19” shelf (for the devices of the Sub-Rack type), in 19” rack or cabinet (for the devices of the Mini-Rack type), or on horizontal surface (for the devices of the Stand Alone type); Note! The metal cases in which devices of Mini-Rack type and cards of Sub-Rack type are mounted must be properly ground
• Switch the device on. The initialization takes of about 20 seconds. When the time lapses the device is ready for configuring from the control computer. Note! The device must be disconnected from power during the installation. DSL and computer connectors are described in Chapter 11. Version: 1.0 Page.
8 PROGRAMMING GUIDE 8.1 Introduction The equipment has built-in management and self-testing functions. The devices can be connected through the RS232 interface to the terminal or computer with a possibility of the terminal emulation for controlling and configuring. Note! The device, primarily configured through the RS232 interface, can be remotely controlled over the Telnet or HTTP protocols.
ECHO↵ %01 %02 %08 %10 %11 %12 Management of devices of Mini-Rack and Stand Alone type The management terminal is connected to the MONITOR socket (DB9 type), which is on the front (for devices of the Mini-Rack type) or rear (for the devices of the Stand Alone type) panels. The requirements to the terminal configuration are similar to those of Sub-Rack devices. After the power is on, the computer displays information about the device firmware loading.
Fig. 19 Command tree of bridge mode Version: 1.0 Page.
Fig. 20 Command tree of router mode Version: 1.0 Page.
8.2 Main menu of the bridge mode After the power is switched on, the terminal screen displays the booting process: NBfs2 Helium Family PP flash boot 6.1.0.25 (22 October 1999) (c) Copyright BLACK BOX 1999 SDRAM size = 0x800000, type = 0x2 NPn Booting... System start... >> The symbol >> means that the system is ready to accept commands. Security password from an unauthorized access The system implements a security from an unauthorized access.
Command format: home Parameter: no 8.2.3 Default command The default command sets the default settings. >> default The data set to default successfully. >> Command format: default Parameter: none 8.2.4 Lan command The Lan command puts the system in the Ethernet submenu. >> lan > lan> Parameter: Setip: Show See 8.2.4.1 See 8.2.4.2 8.2.4.1 Setip command The setip command sets the device IP address. This address is used for remote management of the device over Telnet or HTTP protocols. > lan> setip> 10.0.
Command format: show Parameter: none Definitions: Ethernet ip: Subnet mask: IP address of the device Subnet mask 8.2.5 List command The list command displays the VC condition.
8.2.6 Manage command The manage command puts the system into the management submenu of the access to the device. >> manage > manage> Command format: manage [setpass] Parameter: Setpass: See 8.2.6.1 8.2.6.1 Setpass command The setpass command enables and disables the access password to the system. Password setting > manage> setpass Password disabled New Password:**** Confirm password again:**** Password has been changed Saving configuration... Configuration saved.
Password change > manage> setpass Old Password:**** New Password(press ENTER to disable):****** Confirm password again:****** Password has been changed Saving configuration... Configuration saved. > manage> Command format: setpass Parameter: none. Definitions: Old Password: New Password (press Enter to disable): Confirm password again: Password has been changed: Saving configuration…: Enter the old password. Enter the new password. Confirm the password again. The password has been changed.
Are you sure to disable password (y/n): Password has been changed: Saving configuration…: Confirm the desire to disable the password by pressing “y”. The password has been changed. Information line. The new configuration is saved automatically after the dialogue is finished. Note! The maximal password length should be no more than 20 symbols. The password should be of Latin letters and figures. The symbol uppercase differs. 8.2.
Definitions: Please select bridge or router: Current mode is router: Select the operation mode: bridge/router The current mode is bridge: Note! The mode command changes the list of available commands in the main menu. 8.2.8 Ping command The ping command enables testing and allows checking the network efficiency. >> >> >> >> >> >> >> >> ping 10.0.1.55 Press 'ESC' to break ip: ping – reply received from 10.0.1.55 ip: ping – reply received from 10.0.1.55 ip: ping – no reply received ping 299.
0 PVC existed, 8 PVCs available. VPI(0-4095): 8 VCI(1-65535): 35 Packet Filter ( Any/Ip/Pppoe ): a Add another PVC ? (y/n): n Enable Spanning tree? (y/n) : n Configuration MODE: Bridge FUNCTION: R1483 Spanning Tree: Disable # VPI VCI Package filter 1: 8 35 ANY Preserve the configuration (y/n) : y Configuration will have no effect until after save and restart. >> Comand format: quick Parameter: none.
Parameter: Delpvc: Pfilter: Setpvc: Setqos: Setspan: Show: 8.2.10.1 See See See See See See 8.2.10.1 8.2.10.2 8.2.10.3 8.2.10.4 8.2.10.5 8.2.10.6 Delpvc command The delpvc allows to delete one or all PVCs. > r1483> delpvc all > r1483> Command format: delpvc |[/] Parameter: All: VPI/VCI: 8.2.10.2 Deletes all PVCs. Deletes a PVC with a VPI/VCI number. Pfilter command The pfilter command sets the packet filter for the mentioned PVC.
> r1483> setpvc 8/35 llc > r1483> Command format: setpvc [/] [llc/vcmux] parameter: VPI/VCI: LLC/VCMUX: 8.2.10.4 Sets PVC with the VPI/VCI number. Shows the encapsulation type according to RFC1483. Setqos command The setqos command sets the priority for the active PVC. > r1483> setqos 8/35 ubr > r1483> Command format: setqos [/] Parameter: VPI/VCI: UBR: CBR: VBR: VBRNRT: Sets Sets Sets Sets Sets PVC the the the the with the VPI/VCI number. UBR priority.
8.2.10.6 6 Show command The show command displays the configuration of all the active PVCs. > r1483> show FUNCTION VPI/VCI Rfc1483 8/35 > r1483> CLASS ubr LLC/VCMUX LLC Spanning Disable Pkt Filter IP Command formate: show Parameter: none. Definitions: Function: VPI/VCI: CLASS: LLC/VCMUX: Spanning: Pkt Filter: Defines the used protocol. PVC number. Priority. Encapsulation type according to RFC1483. Spanning tree mode (enabled/disabled). The used packet filter. 8.2.
Helium Family PP flash boot 6.1.0.25 (22 October 1999) (c) Copyright BLACK BOX 1999 SDRAM size = 0x800000, type = 0x2 NPnNo Booting... System start... >> Command format: save Parameter: none. Note! The save command restarts the system. 8.2.13 Shdsl command The shdsl command puts the system into the submenu of the shdsl line.
8.2.13.2 Enable command The enable command activates the last settings of shdsl without them being saved and restarted. > shdsl> enable > shdsl> Command format: enable Parameter: none. 8.2.13.3 Terminal command The terminal command sets the device as the master or slave. > shdsl> terminal coe > shdsl> Command format: terminal | Parameter: Coe: Cpe: The device is configured as master. The device is configured as slave.
8.2.13.5 Fix command The fix command sets the manual mode of line rate adjustment. > shdsl> fix 768 > shdsl> Command format: fix Parameter: rate: Displays the rate at which the connection will be established. Rate is calculated according to the following expression n*64+i*8+8, where n is efficient capacity (1≤ n <36), and i is a header (i=0 | 1).
Note! The adaptive mode must be configured on the slave device. If the manual mode is configured on the master device, the line rate will be set according to the fix parameter of the master device. If the automatic mode is configured on the master device, the line rate will depend on the DSL line quality. 8.2.13.7 Status command The status command displays the actual SHDSL connection status.
8.2.14 Show command The show command displays the modem IP address and active PVC settings. >> show Ethernet ip: 192.168.1.1 Subnet mask: 255.255.255.0 FUNCTION VPI/VCI CLASS Rfc1483 8/35 ubr >> LLC/VCMUX LLC Spanning Disable Pkt Filter ANY Command format: show Definitions: Ethernet ip: Subnet mask: Function: VPI/VCI: CLASS: LLC/VCMUX: Spanning: Pkt Filter: The device IP address. Subnet mask. Indicates the used protocol. PVC number. Priority. Encapsulation type according to RFC1483.
Command formate: dnsrelay [setdnsip [] | show] Parameter: Setdnsip: Show: See 8.3.2.1 See 8.3.2.2 8.3.2.1 Setdnsip command The setdnsip command sets the DNS-server address. > dnsrelay> setdnsip 10.0.0.50 3 Command format: dnsrelay [setdnsip [] Parameter: Dnsip: Retry times: IP address of the DNS server The number of retry connections with the server 8.3.2.2 Show command The show command displays the DNS current settings and server connection status.
8.3.3 Ipoa command The ipoa command puts the system into the menu of connection settings of IP over ATM. >> ipoa > ipoa> Command format: ipoa [delwanip | setqos | setrip | show] Parameter: Delwanip: Setqos: Setrip: Show: See See See See 8.3.3.1 8.3.3.2 8.3.3.3 8.3.3.3 8.3.3.1 Delwanip command The delwanip command serves to delete all or selected PVC. > ipoa> delwanip all Command format: delwanip |[/] Parameter: All: VPI/VCI: Deletes all PVCs.
Note! The setqos command changes the PVC parameters, first configured by the quick command (see 8.2.9) or the setwanip command (see 8.3.3.4). If the mentioned PVC is not found, the system displays an error message. 8.3.3.3 Setrip command The setrip command sets the RIP type for the used PVC. > ipoa> setrip 8/35 1 > ipoa> Command format: setrip [/] <1|2|1&2|0> Parameter: VPI/VCI: 1: 2: 1&2: 0: Sets PVC with the VPI/VCI number. Sets RIP1. Sets RIP2. Sets RIP1 и 2.
8.3.3.5 Show command The show command displays the IP configuration over ATM. > ipoa> show IPoA setting: FUNCTION VPI/VCI IPoA 8/35 CLASS Wan IP/MaskNum ubr 216.71.89.12/24 GatewayIP 216.71.89.3 RIP 0 Command format: show Definitions: VPI/VCI: Wanip/MaskNum: GatewayIP: RIP: Defines the used PVC with the VPI/VCI number. IP address/subnet mask Gateway IP address. The used RIP 8.3.4 Lan command The lan command puts the system into the menu of local Ethernet interface parameter settings.
> lan> Command format: dhcpserver [ ] [] dhcpserver dns [] Parameter: Range1 startIP: Range1 endIP: Range2 startIP: Range2 endIP: Max-lease-time: Dns ip1: Dns ip2: The starting IP address of the first range. The end IP address of the first range. The starting IP address of the second range. The end IP address of the second range. Lease time of the address. IP address of the first DNS.
> lan> Command format: setdhcp [server|disable] Parameter: Ethernet ip: Subnet mask: DHCP current setting : DHCP ineffective setting : Ethernet interface IP address. Ethernet interface subnet mask. DHCP server current settings. DHCP server settings (server/disable). 8.3.5 List command See 8.2.5 8.3.6 Manage command See 8.2.6 8.3.7 Mode command See 8.2.7 8.3.8 Pat command The pat command puts the system into the menu of NAT address translations settings.
Command format: addpatin / Parameter: Wanip: Port Real IP address The server port number, to which the access is allowed Packet transmission protocols The local server address Udp|tcp Serverip 8.3.8.2 Delpatin command The delpatin command deletes the addpatin command. > pat> delpatin all > pat> Command format: delpatin | Parameter: all: Number: Deletes all the connections. The virtual connection number, displayed by the show command. 8.3.8.
No. i/f name|WanIP Port/Protocol Server IP 1 pppoa 434/udp 192.62.2.134 2 210.62.2.195 232/tcp 192.62.2.166 > pat> Command format: show Definitions: Interface: IP address: No. i/f name|WanIP Port/Protocol: Server IP The used interface. Interface IP address. The table serial number. The interface name | WAN address. Port and transmission protocol. The server IP address. 8.3.9 Ping command See 8.2.8 8.3.10 Pppoa command The pppoa command puts the system into the menu of PPP over ATM settings.
8.3.10.1 Adduser command The adduser command activates VC, assigning the VPI/VCI addresses and sets the user’s name and the password for PPP over ATM connections. > pppoa> adduser 8/35 Access chap New Password:******* Confirm password again:******* User account added successfully. > pppoa> Command format: adduser [/] [] Parameter: VPI/VCI: Userid: Chap/pap: 8.3.10.2 Defines the used PVC with the VPI/VCI number. User’s name. Access check protocol.
8.3.10.4 Echo command The echo command enables and disables the LCP response (the process of the control connection). LCP is used to confirm the established PPP connection, the interval time between the LCP responses can be changed. > pppoa> echo 120 > pppoa> Command format: echo Parameter: Interval time 8.3.10.5 Intervals between LCP responses. The interval lies in the range from 0 to 65535 seconds. The default setting is 60 s. If the parameter is 0, the function is disabled.
8.3.10.7 Setrip command The setrip command sets the RIP type for the active connection of PPP over ATM. > pppoa> setrip 1 > pppoa> Command format: setrip <1|2|1&2|0> Parameter: 1: 2: 1&2: 0: 8.3.10.8 Sets RIP1. Sets RIP2. Sets RIP1 и 2. RIP is not used. Show command The show command displays the configuration of the current PPP over ATM connection.
8.3.12 R1483 command The r1484 command puts the system into the menu of RFC1483 encapsulation settings. >> r1483 > r1483> Command format: r1483 [delwanip |[/] | setqos [/] | setrip [/] <1|2|1&2|0> | setwanip setwanip [/] ]> [llc/vcmux] | show] Parameter: Delwanip: Setqos: Setrip: Setwanip: Show: 8.3.12.1 See See See See See 8.3.12.1 8.3.12.2 8.3.12.3 8.3.12.4 8.3.12.5.
Parameter: VPI/VCI: UBR: CBR: VBR: VBRNRT: 8.3.12.3 Sets Sets Sets Sets Sets PVC the the the the with the VPI/VCI number. UBR priority. CBR priority. VBR priority. VBR-NRT priority. Setrip command The setrip command sets the RIP type for the used PVC. > pppoa> setrip 1 > pppoa> Command format: setrip <1|2|1&2|0> Parameter: VPI/VCI 1: 2: 1&2: 0: 8.3.12.4 Sets PVC with the VPI/VCI number Sets RIP1. Sets RIP2. Sets RIP1 и 2. RIP is not used. 8.3.12.
8.3.12.5 Show command The show command displays the r1483 configuration. > r1483> show RFC1483 setting: FUNCTION VPI/VCI Rfc1483 8/35 > r1483> CLASS ubr LLC/VCMUX LLC Wan IP/MaskNum 216.71.89.12/24 RIP 1 Command format: show Definitions: VPI/VCI: Wanip/MaskNum: Class: RIP: Defines the used PVC with the VPI/VCI number. IP address/subnet mask. Connection priority. The used RIP 8.3.13 Quick command The quick command allows to set quickly the connection with the help of prompts.
8.3.14 Restart command See 8.2.11 8.3.15 Rtable command The rtable puts the system into the menu of routing table settings. >> rtable > rtable> Command format: rtable [addiproute | deliproute | show] Parameter: Addiproute: Deliproute: Deletes all the connections. The virtual connection number, displayed by the show command. Show 8.3.15.1 Addiproute The addiproute command adds a new route in the routing table. > rtable> addiproute 198.24.67.0 216.71.89.
Parameter: all: number: 8.3.15.3 Deletes all routes from the table. Deletes the route with the number displayed by the show command. Show command The show command displays the routing table. > rtable> show Routing Table: No. Destination IP SubMask 1 0.0.0.0 0.0.0.0 2 198.24.67.0 255.255.255.0 effective routing table: Routing table is empty > rtable> Gateway IP 216.71.89.3 216.71.89.3 Command format: show Parameter: No: Destination IP: SubMask Gateway IP The routing number. Destination address.
9 FIRMWARE LOADING The device hardware allows to implement new possibilities and functions by updating its firmware. To facilitate the firmware update, there exists a command file. The upgrade is implemented over TFTP. It is recommended to update the firmware in the manufacturer or provider’s (supplier) service center. One should take into account the following items, while loading the firmware: • The firmware updating is the most responsible operation in the process of the device exploitation.
10 TECHNICAL SPECIFICATIONS 10.1 Interfaces 10.1.1 Monitor interface Parameter Description Interface ITU-T V.24/V.28 (RS232) Transmission mode Asynchronous Interface type DCE Terminal emulation mode VT100 Transmission format 8-N-1 Flow management XON/XOFF Transmission rate 2400…57600 bit/s 10.1.2 Network management interface Parameter Description Interface Ethernet ISO/IEC 8802-3 Supported protocols Telnet, SNMP MIB II, ILMI, TFTP, HTTP 10.1.
For transmission rate, Kbit/s: 200 264 392 520 776 1032 1544 2056 Frequency transmission range, kHz 0…67 0…88 0…131 0…173 0…258 0…344 0…515 0…685 10.1.4 Network interface Parameter Description Transmission rate 10 Mbit/s Transmission medium UTP 10BASE-T Standard Ethernet ISO/IEC 8802-3 Bridge IEEE-802.1d Encapsulation RFC1483, RFC2364, RFC2516 Routing RIP1, RIP2, static routing Protocols NAT, PPP, PAP/CHAP, DHCP 10.
10.2.1 Protection against dangerous affects The protection of the equipment against dangerous interfering affects meets the requirements of ITU-U K20/K.21 10.2.
10.4 10.4 Guarantee The Mean Time Between Failure is not less than 3x104 hours. The operating lifetime is no less than 20 years. 10.5 10.5 Physical dimensions Stand Alone (dimensions, weight) 220 mm х 170 mm х 40 mm, 0.5 kg Mini-Rack (dimensions, weight) 483 mm х 230 mm х 43.5 mm, 3 kg Sub-Rack (dimensions, weight) 233 mm х 220 mm х 30 mm, 1 kg Version: 1.0 Page.
11 CONNECTORS’ DESCRIPTION 11.1 SHDSL connector Type: RJ-11, 4 pin Pin Signal Description 1 NC – 2 LA,a SHDSL pair, tip 3 LA,b SHDSL pair, ring 4 NC – 11.
9 ND_NO Non Urgent-Alarm contact, normally open For Mini-Rack units 11.3 Ethernet (10BaseT) connector Type: RJ-45 1 ............ 8 RJ45 Pin Description 1 Tx+ 2 Tx- 3 Rx+ 4 NC 5 NC 6 Rx- 7 NC 8 NC 11.4 Power connector (For MDS922AE-10BT) Type: Molex, 4 pin 4 2 Version: 1.0 3 1 Pin Signal Description 1 -PWR negative power supply terminal 2 PROT Grounding 3 NC – 4 +PWR positive power supply terminal Page.
12 DESCRIPTION OF INTERFACE CABLES 12.1 «Direct» Ethernet cable The cable contains two pairs: Side А Color Side B 1 white/orange 1 2 orange/white 2 3 white/blue 3 6 blue/white 6 The cable contains four pairs: Side А Color Side B 1 white/green 1 2 green/white 2 3 white/orange 3 4 blue/white 4 5 white/blue 5 6 orange/white 6 7 white/brown. 7 8 brown/white 8 Version: 1.0 Page.
12.2 Cross-over Ethernet cable The cable contains only two pairs: Side А Color Side B 1 white/orange 3 2 orange 6 3 white/blue 1 6 blue 2 The cable contains four pairs: Side А Color Side B 1 white/green 3 2 green 6 3 white/orange 1 4 blue 7 5 white/blue 8 6 orange 2 7 white/brown 4 8 brown 5 12.3 Monitor connector Device Computer DB9M DB9F DB25F 2 2 3 3 3 2 5 5 7 Version: 1.0 Page.
13 DELIVERY SET (see the technical passport) Typically the delivery set includes: • SHDSL modem • AC power adapter (for Stand Alone versions only) • AC power cable (for MiniRack versions only) • Ethernet cable • User Manual (in some cases can be made available on a disk or web site) Version: 1.0 Page.
14 GLOSSARY DSL (digital subscriber line) Digital technology that provides high-speed data transmission over physical wiring (twisted pair), used to connect telephones. E1 Digital data rate of 2048 Kbit/s structured according to ITU-T G.704. G.703 ITU-T standard regulating electrical and mechanical specifications for connections. G.704 ITU-T standard regulating synchronous structures for the first and second hierarchical layers. G.826 ITU-T standard regulating errors and norms for digital lines.
International body that develops worldwide standards for telecommunications technologies. LAN (local-area network) LANs connect workstations, servers, terminals, printers and other devices in a single building or other geographically limited area. LANs use special operating systems to transmit data at high speeds. Several LANs form wide area networks (WAN). LTU Line termination unit.
TDM Time Division Multiplexing SDH Synchronous Digital Hierarchy VPI Virtual Path Identificator VСI Virtual Channel Identificator Version: 1.0 Page.
15 EXAMPLE OF NETWORK CONFIGURATION Consider the following example of router configuration in MDS92xxx-10BT modems. Fig. 13 shows the network structure. Network 198.24.67.0/24 Workstation Network 194.27.54.0/24 IBM Compatible Workstation WAN Hub 216.71.89.12 Router1 198.24.67.20/24 Workstation Hub 216.71.89.3 Router2 194.27.54.10/24 Fig.13 network With the help of the mode command select the routing mode for the modem. The following message notifies you that the current mode now is router.
When the following message “R1483(r)/IpoA/PPPoA(p)” appear, type “IpoA” and press “enter”. Enter the IP address, which will belong to the router. In our case, it is 198.24.67.20 with mask 255.255.255.0. The system requires to enter VPI and VCI. Type 8 and then press “enter” after it, type 35, and press “enter”. On request “WANIP” it is necessary to enter the interface IP address through which the connection with another router occurs. In our case, it is 216.71.89.12.
Enter 216.71.89.3. Note! IP addresses of WAN interfaces must be in the address field of one network. In our case this is network 216.71.89.0 with mask 255.255.255.0. After it, on request to add next PVC, type “n” and press “enter”. Then save the configuration, and restart the modem. 15.2 Router 2 The configuration of router 2 will differ only when we enter the IP address of the router, wan interface and gateway. On request of the router to enter: Ethernet IP: Subnet mask (0.0.0.
WAN IP: 216.71.89.3 Gateway: 216.71.89.12 Now it is necessary to reinitialize router 2. After restart of the system, let us check operability of the created network. Enter the command “ping 198.24.67.20 on router 2. The configuration is completed successfully. Version: 1.0 Page.
