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8326gb manualIt offers a wide range of features and capabilities, all designed to simplify the task of creating and maintaining a Fast Ethernet network.Thank you, for helping us keep this platform clean. The editors will have a look at it as soon as possible. When stacked up to 144 ports with the integrated stacking modules, the AT-8326GB and AT-8350GB pass data packets at an impressive stacked backplane speed of 2.66Gbps.This high performance switch is ideal for small and medium enterprises, multi-unit buildings, hospitality, schools, and universities. SCALABILITY Expand your network using one of a variety of combinations.You can choose either 2 fixed copper Gigabit ports or 2 fibre GBIC bays or choose 1 fixed copper port and 1 fibre GBIC bay. MANAGEMENT The AT-8326GB and AT-8350GB have an integrated management agent, which provides an embedded web server, SNMP, RMON, console telnet capabilities. RICH FEATURE SET The AT-8326GB and AT-8350GB come complete with a number of value-added standards and features including IEEE 802.1Q VLAN tagging, IEEE 802.1p Priorisation, IEEE 802.3ad Link Aggregation, Group VLAN Registration Protocol (GVRP), Port Security, and Port Mirroring. Based on IEEE 802.3ad, the AT-8326GB supports up to three trunk groups. Allied Telesyn connects the IP world efficiently thanks to affordable and highly reliable network solutions. TELNET session now in ESTABLISHED state. AT9812 login: manager. Password:Preferred flash:sb291-10.rez - 98122911.rsc. Default EPROM (SB-1.0.4) - -Resource FileStatus: Good. Header InfoModel: AT-9812T. Gui Builder Version: 3.3. Resource File Format: 1. Language: English. Version: 00. Build Type: CUSTOMER. File Size: 2916526Please choose one to download: A(pplication) or B(ootLoader) or C(Combined). Press A for Application, B for BootLoader, C for Combined: a. Receiving data. Industrial 9-port Gigabit Managed Ethernet Switch. Quick Installation Guide. V1.http://iucecb.com/files/dect-360-long-range-manual.xml
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0 To use this website, you must agree to our Privacy Policy, including cookie policy. Installation Guide. PN Rev A No part of this publication may be reproduced without prior written permission from Allied Telesyn, Inc. All other product names, company names, logos or other designations mentioned herein are trademarks or registered trademarks of their respective owners. Allied Telesyn, Inc.The information provided herein is subject to change without notice. In no event shall Allied Telesyn, Inc.These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with this instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense. Note: Modifications or changes not expressly approved by the manufacturer or the FCC can void your right to operate this equipment. Canadian Department of Communications This Class A digital apparatus meets all requirements of the Canadian Interference-Causing Equipment Regulations. When you see the, go to Appendix C for the translated safety statement in your language. Belangrijk: Appendix C bevat vertaalde veiligheidsopmerkingen voor het installeren van deze apparatuur. Wanneer u de ziet, raadpleeg Appendix C voor vertaalde veiligheidsinstructies in uw taal. Il simbolo, indica di consultare l Appendice C per l avviso di sicurezza nella propria lingua. Viktig: Tillegg C inneholder oversatt sikkerhetsinformasjon for installering av dette utstyret. How This Guide is Organized This manual contains the following chapters and appendices: Chapter 1, Hardware Description, describes the features and components of the switch.http://coko-sochi.ru/userfiles/dect-515-philips-manual.xml Chapter 2, Installation, contains the installation instructions. Chapter 3, Troubleshooting, provides information on how to resolve common problems that might occur with the switch. Appendix A, Technical Specifications, contains the switch s technical specifications. Appendix B, Switch Default Settings, lists the factory default settings. Appendix C, Translated Electrical Safety and Emission Information, contains translations of the warnings and cautions in the manual. 6 7 Document Conventions This document uses the following conventions to highlight important information. Note Notes provide additional information. Warning Warnings inform you that performing or omitting a specific action may result in bodily injury. Caution Cautions inform you that performing or omitting a specific action may result in equipment damage or loss of data. 7 8 Where to Find Web-based Guides The Allied Telesyn web site at contains the most recent documentation for all Allied Telesyn International products. All documents are available as PDF files. You can either view the documents online or download them onto a local workstation or server. Once you have installed the switch, refer to following manual for instructions on how to manage and configure the unit. The manual is available from the Allied Telesyn web site: AT-S41 Management Software User s Guide PN 9 Contacting Allied Telesyn Telephone Support To contact Technical Support by telephone, find your country or region in the table below. For other European countries not listed here, ring ) You can also contact Technical Support online at: For Sales or Corporate Information Allied Telesyn, Inc North Creek Parkway, Suite 200 Bothell, WA Tel: (425) Fax: (425) 10 Management Software Updates Allied Telesyn periodically updates the management software programs for our managed products. To obtain a copy of an updated management program, you can download the software either from our web site or our FTP server at ftp.alliedtelesyn.com. To use the FTP server, enter anonymous for the user name when you log in and your address for the password. 10 11 Chapter 1 Product Description The AT-8326GB is a stackable Layer 2 Fast Ethernet switch. It offers a wide range of features and capabilities, all designed to simplify the task of creating and maintaining a Fast Ethernet network. The features of the twisted pair ports are described below. You can set the port speed manually or, since the ports are IEEE 802.3u Auto-Negotiation compliant, you can allow the switch to set each port s speed automatically. With 13 14 Auto-Negotiation, the switch automatically matches the highest possible common speed between each switch port and each end node. For example, if an end node is capable of only 10 Mbps, the switch sets the port connected to the end node to 10 Mbps. Note Auto-Negotiation is activated as the default on all of the ports on the switch. To deactivate Auto-Negotiation and set the speeds manually, refer to the AT-S41 Management Software User s Guide. Maximum Distance Each twisted pair port has a maximum operating distance of 100 m (328 ft). Type of Cabling For 10 Mbps operation, Category 3 or better 100 ohm shielded or unshielded twisted pair cabling is required. For 100 or 1000 Mbps operation, Category 5 and Enhanced Category 5 (5E) 100 ohm shielded or unshielded twisted pair cabling is required. Auto-MDI All of the twisted pair ports on the switch are auto-mdi and IEEE 802.3ab-compatible. They automatically configure themselves as either MDI or MDI-X. This feature allows you to use either straight-through or cross-over twisted pair cables to connect devices to the ports. Duplex Mode Each twisted pair port on the switch can operate in either half- or fullduplex mode. The twisted pair ports are IEEE 802.3u-compliant and will Auto-Negotiate the duplex mode setting. If the end node connected to a twisted pair port on the switch is capable of full-duplex operation, the switch sets the port to full-duplex.http://genesisrealtycorp.com/images/830-t2-manual.pdf If the end node is capable of only halfduplex, the port is set to half-duplex. If desired, Auto-Negotiation on one or all of the twisted pair ports can be disabled so that you can set the duplex mode manually through the switch s management software. 14 15 RJ-45 Port Pinouts Figure 4 illustrates the pin layout to an RJ-45 connector and port Figure 4 RJ-45 Connector and Port Pin Layout Table 1 lists the RJ-45 pin signals when a twisted pair port is operating in the MDI configuration. Each slot can accommodate one optional GBIC module. A GBIC module is a gigabit (1000Base) transceiver. GBIC modules can be used to extend the distance of your network, build a high-speed backbone network, or connect additional nodes to the network, such as high-speed servers. Figure 6 shows an example of a fiber optic GBIC module. Figure 6 Example of a GBIC Module Note Ports 25 and 26 can each support only one medium type (i.e., twisted pair or GBIC) at a time. For example, if you install a GBIC for Port 25, you cannot use the corresponding twisted pair port. In order to use Port 25 or 26 with a GBIC module, you must change the port setting in the management software to GBIC instead of twisted pair. For instructions, refer to the AT-S41 Management Software User s Guide. The AT-8326GB Gigabit Ethernet Switch supports the AT-G8 series GBIC modules: SX, LX, LX25, LX40, LX75. 17 18 Stacking Ports STACK IN STACK OUT Stacking Ports Figure 7 Stacking Ports There are two stacking ports on the back of the switch (Figure 7). The ports are used to connect AT-8326GB switches to form a logical switch. A logical switch consists of two or more individual switches that function as one unit. This feature offers the following benefits: G Stacking allows you to build a switch that is customized to the needs and requirements of your network. G Stacking simplifies network management. Rather than having to mange the switches individually, you can manage all of the switches as one unit. G Stacking allows you to manage multiple switches from one management session. All of the switches in a stack can be managed from one management session through the master switch of the switch stack. G Stacking switches reduces the number of IP addresses you need to assign to the switches you want to manage, since you can use one IP address for all of the switches in a switch stack. Up to six AT-8326GB switches can be stacked together in a daisy-chain stacking configuration. Star and redundant path configurations will not work. A stack does not require any additional hardware other than the switches and the LVDS stacking cable that comes with the units. 18 19 System LEDs AT-8326GB G Managed Switch STACK ID FAULT PWR System LEDs Figure 8 System LEDs The system LEDs on the front panel display general status information about the entire switch. The system LEDs are defined in Table 4. Table 4 System LEDs LED State Description PWR Green System power is ON. OFF System power is OFF. Since you can stack up to six AT-8326GB switches, there are six stack ID LEDs. Each port also has an LED. This LED displays the duplex mode of the port and whether or not there are any collisions occurring on the port. Flashing Green Steady Yellow Flashing Yellow OFF A 100 Mbps link with activity. A 10 Mbps link with no activity. A 10 Mbps link with activity. No link has been established. Green The port is in full-duplex mode. Yellow Flashing Yellow The port is in half-duplex mode and no data collisions are occurring on the port. Flashing Green OFF A 1000 Mbps link with activity. No 1000 Mbps link has been established. The port is in half-duplex mode with collisions. 22 23 Gigabit Connector LEDs RS-232 Connector LEDs Figure 11 Gigabit Connector LEDs Ports 25 and 26 each have two connector LEDs on the front panel that indicate which connector type is being used for each port: the RJ-45 or the GBIC. The connector LEDs for each port are located to the left of the RJ-45 connectors and to the right of the GBIC slots. 23 24 RS-232 Terminal Port RS-232 Figure 12 RS-232 Terminal Port The RS-232 Terminal Port is used to establish a local (out-of-band) management session with the switch. Using the port, you can access the switch s management software and configure the switch s operating parameters. You establish a local management session by connecting either a VT100 terminal or a personal computer with a terminal emulation program to the port. Note You are not required to manage an AT-8326GB Fast Ethernet switch. The default switch settings may be sufficient for your network, in which case you can use the unit as an unmanaged switch. For the switch s default settings, refer to Default Switch Settings on page 69. The RS-232 Terminal Port has a DB-9 female connector and uses a null modem management cable. The default settings for the RS-232 Terminal Port are: G Emulation mode: VT100 G Data rate: 9600 G Data bits: 8 G Parity: None G Stop bits: 1 G Flow control: None G Key mode: Terminal Terminal Port 24 25 AC Power Connector VAC Figure 13 AC Power Connector The switch has a single AC power supply socket on the back panel, which has autoswitch AC inputs. Refer to the Technical Specifications on page 67 for the input voltage range. To power ON or OFF the switch, you connect or disconnect the power cord. 25 26 Software Features The following sections describe these software features: G AT-S41 Management Software G Spanning Tree Protocol (STP) G Tagged and Port-based Virtual LANs (VLANs) G Quality of Service G IGMP Snooping G Dynamic Host Configuration Protocol (DHCP) G Port Monitoring G Port Trunking G Port Security Note All of the features described here are further described in the AT-S41 Management Software User s Guide. AT-S41 Management Software The AT-8326GB Fast Ethernet switch comes with the AT-S41 management software pre-installed. This management software has default values for all the operating parameters for a switch. In some network environments, the default settings might not need to be changed, allowing you to use the switch as an unmanaged switch. If you want to manage the switch and change or monitor the operating parameters, you must access the AT-S41 management software. Some of the functions that you can do with the management software include assigning the switch an IP address and subnet mask, creating VLANs and port trunks, and activating and configuring the Spanning Tree Protocol parameters. The management software s interface consists of menus and prompts that make it easy for you to configure the switch and view performance and status information. There are four ways to access the switch s management software: G RS-232 Terminal Port G Web Browser G Telnet Application Protocol G SNMP management program 26 27 RS-232 Terminal Port One method for accessing the management software is by connecting a terminal or a PC with a terminal emulation program to the RS-232 Terminal Port on the switch, as indicated in Figure 14. This is commonly referred to as local or out-of-band management. Please refer to Starting a Local Management Session on page 59 for instructions on how to start a local management session. This is referred to as remote or in-band management. To start a web browser management session, you simply enter the switch s IP address in the URL field of the web browser, as shown in Figure 16, and enter manager as both the default login name and default password. To manage an AT-8326GB switch stack, enter the IP address of the master switch of the stack. URL Field with Switch IP Address Figure 16 URL Field of a Web Browser Figure 17 shows the AT-S41 management software s home page. Figure 17 Web Browser Management Home Page 28 29 Telnet Application Protocol Using the Telnet application protocol is another way for you to manage the switch remotely from a workstation on your network. Starting this type of remote access requires that you specify the IP address of the switch in the Telnet protocol and enter manager as both the default login name and default password. SNMP Management You can also manage a switch with an SNMP management program, such as HP Openview. This management method requires loading the AT-8326GB Fast Ethernet Switch MIBs into the SNMP management program. The Allied Telesyn Enterprise MIB is available in the software upgrades on the Allied Telesyn web site. The standard MIBs supported by this switch include: G RFC 1213 (MIB II) G RFC 1493 (Bridge MIB) G RFC 1757 (4-Group RMON) G Allied Telesyn Enterprise MIB Spanning Tree Protocol (STP) The AT-8326GB Fast Ethernet switch is IEEE 802.1D standard-compliant and supports the spanning tree protocol. STP can be an important part of large networks where loops exist in the network topology. A loop occurs when two or more nodes on your network can transmit data to each other over more than one link. Network loops can seriously impact network performance because packets can become caught in repeating cycles, often referred to as broadcast storms, that needlessly consume network bandwidth and reduce network performance. STP addresses this problem by ensuring that there is only one path between the end nodes. Where multiple paths exist, STP places the extra paths in a redundant or standby mode, leaving only one main active path. The redundant paths can be activated by STP if the main path goes down. So not only does STP guard against multiple links between end nodes, but it also activates backup redundant paths in case a main link fails. STP is disabled by default on the AT-8326GB Fast Ethernet switch. Note The AT-8326GB Fast Ethernet switch supports only one STP domain. All virtual LANs that you create will be members of that STP domain. 29 30 Tagged and Port-based VLANs A VLAN is a group of end nodes that form an independent subnetwork. Each VLAN constitutes a separate broadcast domain, where the frames of a VLAN are not allowed to cross the VLAN boundary. VLANs can be extremely useful in improving network performance and increasing network security. You can create VLANs to group the workstations, servers, and other networking equipment connected to your switches into logical workgroups. These VLAN groupings can be based on similar data needs or security requirements. When networking devices, such as workstations and servers, are grouped into a VLAN, data is exchanged between only those members of the group. Other advantages of VLANs include: G You can group workstations logically or functionally, regardless of their physical location on the network. G You can change VLAN memberships anytime by software configuration without moving the workstations physically or having to move cables from one port to another on the switch. G With VLAN tagging, network servers or other network resources can be shared among several VLANs without loss of data isolation or security. G A VLAN can consist of ports limited to a single switch or ports from multiple switches. This allows you to group together network devices that, though physically separated by large distances, will function as if they are a part of the same physical LAN. The AT-8326GB Fast Ethernet switch supports two types of VLANs: G Port-based VLANs G Tagged VLANs The AT-8326GB Fast Ethernet switch comes configured with one portbased VLAN, called the Default VLAN. All ports on the switch are members of this Default VLAN. Quality of Service (QoS) The AT-8326GB Fast Ethernet switch supports the IEEE 802.1p standard and Quality of Service. QoS can be important in network environments where there are time-critical applications, such as voice transmission or video conferencing, that can be adversely affected by packet transfer delays. Prior to QoS, network traffic was handled in a best-effort manner. File transfer delays did occur, but were mostly transparent to network users. But with the introduction of time-critical applications, packet transfer delays can impact performance. For example, delays in packets carrying voice transmission can result in poor audio quality. 30 31 The QoS feature was designed to address this problem. With it, Ethernet frames can be assigned different priorities. The switch uses the priorities when determining which frames to forward first. Frames from endnodes running time-critical applications can be given a high priority, so that they will be forwarded by the switch ahead of less time-critical frames. IGMP Snooping The Internet Group Management Protocol (IGMP) enables routers to create lists of nodes that want to receive multicast packets from a multicast application. The router creates a multicast membership list by periodically sending out queries to the local area networks connected to its ports. A node wanting to become a member of a particular multicast group responds to a query by sending a report. Nodes that join a multicast group are referred to as host nodes. Once the router has received a request from a host node to join a multicast group, it notes the multicast group that the host node wants to join and the port on the router where the node is located. Any multicast packets belonging to that multicast group are then forwarded by the router out the port. If a particular port on the router has no nodes that want to be members of multicast groups, the router does not send multicast packets out the port. This improves network performance by restricting multicast packets only to router ports where host nodes are located. The IGMP snooping feature on the AT-8326GB switch enables the unit to monitor the flow of queries from the router and reports from the host nodes to build its own multicast membership lists. It uses the lists to forward multicast packets only to switch ports where there are host nodes that are members of multicast groups. This improves switch performance and network security by further restricting the flow of multicast packets only to those switch ports connected to host nodes. Without IGMP snooping, the switch would flood all multicast packets out all of its ports, except the port on which it received the packet. Such flooding of packets can negatively impact switch and network performance. Note By default, IGMP snooping is disabled on the switch. Note The AT-S41 software supports both IGMP version 1 and version 2. 31 32 Dynamic Host Configuration Protocol (DHCP) This application protocol was developed to simplify network management. It is used to automatically assign IP configuration information to the devices on your network, such as an IP address, subnet mask, and, in some instances, a default gateway address. The AT-8326GB Fast Ethernet Switch supports this protocol and can obtain its IP configuration information from a DHCP server on your network. If you activate this feature, the switch will seek its IP address, subnet mask, and default gateway from a DHCP server residing on your network. Most DHCP services allow you to specify whether the IP address assignment from the server is to be static or dynamic. If you choose static, the server will always assign the same IP address to the switch when the switch is reset or powered on. If you choose dynamic, the server will assign an unused IP address from its list of potential IP addresses each time the switch is reset or powered on. Note The DHCP option is disabled by default on the switch. Port Monitoring Port Trunking The port monitoring feature allows you to unobtrusively monitor the traffic being received and transmitted on a port on the switch by having the traffic copied to another switch port. You can connect a network analyzer to the port functioning as the monitoring port to monitor the traffic without impacting network performance or speed. Port trunking is an economical way for you to increase the bandwidth between an AT-8326GB Fast Ethernet switch and another network device, such as a server, router, workstation, or another switch. A port trunk is two or more data ports that have been grouped together to increase the bandwidth between a switch and a network node by functioning as one logical path. This increase in bandwidth can prove useful in situations where a single connection between the switch and a node is insufficient to handle the traffic load. Port trunks are also useful in adding redundancy to the critical devices of your network. If one link of a port trunk fails, the remaining links will continue to provide a connection to the end node. Despite the software configuration and physical connections, there are no data loops in a port trunk because of load balancing. The port trunk always sends packets from a particular source to a particular destination over the same link within the trunk. A single link is designated for flooding broadcasts and packets of unknown destination. 32 33 Below are the guidelines to follow when planning a port trunk: G G G G The switch can support up to four port trunks at a time. The duplex mode, speed, and flow control settings must be the same for all of the ports in a trunk. When cabling a trunk, the order of the connections should be maintained on both nodes. The lowest numbered port in a trunk on the switch should be connected to the lowest numbered port of the trunk on the other device, the next lowest numbered port on the switch should be connected to the next lowest numbered port on the other device, and so on. G The ports of a port trunk must be of the same type. For example, they can be all twisted pair ports or all fiber optic ports. G G For an AT-8326GB switch, you can create a port trunk of the GBIC modules installed in the Port 25 and Port 26 slots, provided that the GBIC modules are of the same type. The ports on the end node must also be configured as a port trunk. Caution Do not connect the cables of a port trunk to the switch until after you have created the port trunk using the switch s management software. Connecting the cables before the port trunk has been configured will create a data loop in your network topology, and that could adversely affect network performance. 33 34 Example of a Port Trunk Figure 18 shows an example of a port trunk between an AT-8326GB and a network server. The server is connected to the switch with four data links. The links are connected to ports 1 through 4 on the switch. The example in Figure 19 shows a port trunk of four data links between two AT-8326GB Fast Ethernet switches. You can use the port security levels to enhance the security to your network. The security levels are briefly described below. For further information and instructions on activating a security level, refer to the AT-S41 Management Software User s Guide. Normal This is the default port security setting and indicates that port security has been disabled. Limited You use this security level to manually specify the maximum number of dynamic MAC addresses a port on the switch can learn. Once a port has learned its maximum limit of MAC addresses, it will discard any frames that it receives with a source MAC address not already learned and stored in the MAC address table. This security level can prevent unauthorized individuals from connecting to your network and gaining access to network resources. For example, if an AT-8326GB port is connected to an Ethernet hub with four workstations attached, you can configure the switch port to learn only four MAC addresses. Once those addresses are learned, any one else attempting to connect to the network through the Ethernet hub would be denied access. Secure This security level causes the switch to immediately stop learning new dynamic MAC addresses. The switch forwards frames based on the dynamic MAC addresses that it has already learned and any static MAC addresses that the network administrator has entered. 35 36 A Few Basics to Ethernet Switching An Ethernet switch interconnects network devices, such as workstations, printers, routers, and other Ethernet switches, so that they can communicate with each other by sending and receiving Ethernet frames. MAC Address Table Every hardware device on your network has a unique MAC address. This address is assigned to the device by the device s manufacturer. For example, when you install a network interface card (NIC) in a computer so that you can connect it to the network, the NIC already has a MAC address assigned to it by its manufacturer. The AT-8326GB Fast Ethernet switch contains an 8,000 entry MAC address table. The switch uses the table to store the MAC addresses of the network nodes connected to its ports, along with the port number on which each address was learned. The switch learns the MAC addresses of the end nodes by examining the source address of each packet received on a port. It adds the address and port on which the packet was received to the MAC table if the address had not already been entered in the table. The result is a table that contains all the MAC addresses of the devices that are connected to the switch s ports, and the port number where each address was learned.