Cabletron Systems SFCS-200WG - Manual

Contents iv 3.2.4.2 SFCS-1000 AC Power Supply (Model A).................................... 3-123.2.4.3 SFCS-1000 AC Power Supply (Model B) .................................... 3-15 3.2.5 SFCS-1000 Fan Tray ................................................................................ 3-18 3.2.6 S...

v Contents Chapter 6 Software Upgrade Instructions 6.1 Obtaining the Software Upgrade File via Diskette ......................................... 6-26.2 Performing the Software Upgrade .................................................................... 6-46.3 Changing between Multiple Versions of S...

Contents vi Appendix C Hardware Specifications C.1.1 SFCS-200WG ............................................................................................ C-2C.1.2 SFCS-200BX .............................................................................................. C-3C.1.3 SFCS-1000 ............

vii PREFACE This manual provides technical information needed to install and operate the Cabletron TM 9A000 and SecureFast Cell Switch-200BX ATM Switches. It pro- vides information for the 9A000 and SFCS-200BX switches and the user-installable network modules offering both LAN and WAN interfaces. Th...

viii PREFACE cd /usr <ENTER> Commands or file names that appear within the text of this manual will berepresented in the following style: “...the fore_install program will install this distribution”. As in the following example, any messages that appear on your screen duringsoftware installati...

ix PREFACE Information contained in NOTE statements has been found important enough to be called to the special attention of the operator and will be set offfrom the text as follows: NOTE: Cabletron Systems strongly recommends thatyou disconnect the serial cable once you haveconfigured the ATM switc...

x PREFACE Laser Warning Class 1 lasers are defined as products which do not permit human access tolaser radiation in excess of the accessible limits of Class 1 for applicable wave-lengths and durations. These lasers are safe under reasonably foreseeableconditions of operation. The following network ...

xi PREFACE Safety Agency Compliance This preface provides safety precautions to follow when installing aCabletron Systems, Inc., product. Safety Precautions For your protection, observe the following safety precautions when setting upyour equipment: • Follow all warnings and instructions marked on t...

xii PREFACE Modifications to Equipment Do not make mechanical or electrical modifications to the equipment.Cabletron Systems, Inc., is not responsible for regulatory compliance of amodified product. Placement of a Cabletron Systems Product CAUTION To ensure reliable operation of your CabletronSystem...

1-1 CHAPTER 1 Introduction The Cabletron 9A000 and SFCS series ATM Switch brings ATM connectivity to LAN workgroup, LAN backbone, and LAN/WAN internetworking applica-tions. Together with the Cabletron series of ATM Computer Interfaces, the 9A000 and SFCS series meet the networking demands of today’s...

1-2 Introduction communication) to be switched to multiple destinations by fast ATM switchessuch as the Cabletron 9A000 and SFCS series (connecting up to 64 workstations with an aggregate capacity of 2.5 Gbps or 96 workstations running at 100Mbps). Larger LANs can be built by interconnecting multipl...

1-4 Introduction Figure 1.2 - SFCS-200BX Switch Configuration 1.2.1 Front Panel Description The front panel of the 9A000 and SFCS series includes the following features:a power switch, two power supply LEDs, a RESET button, an RS-232 serialport, an Ethernet 10BaseT port, a NEXT pushbutton, a SELECT ...

1-7 Introduction 1.2.7 Standards Compliance • ITU I.361 ATM Layer • ATM Forum UNI 3.0 1.2.8 Safety Compliance • US: UL 1950 • Canada: CSA 22.2 No. 950-M89 • Europe: EN 60950 1.2.9 Emissions Compliance • FCC Part 15, Class A • CISPR 22, Class A • VCCI, Class 1 1.2.10 Electromagnetic Compatibility (EM...

2-1 CHAPTER 2 Installing the 9A000 This chapter contains the procedures for installing the 9A000. The installationof the SFCS series is covered in Chapter 3. 2.1 Installing the 9A000 To install the Cabletron 9A000, follow the steps below: 1. Switch off the power supplies and remove all power from th...

2-2 Installing the 9A000 Figure 2.1 - Installing the 9A000 Module 7 F L N K 8 F L N K F L N K 10 F L N K I N S 11 F L N K I N S 12 RX TX RX TX RX Circuit Card Card Guides Metal Back-Panel Jack for ESD wrist strap Warning: Ensure that the circuit card is between the card guides. Lock down the top and...

2-3 Installing the 9A000 2.2 The Reset Switch The Reset switch is located on the rightmost front panel, under the top plastictab as shown in Figure 2.2. It serves two functions: • Pressing the reset switch twice within three seconds causes the pro- cessor (i960) to reset. • Pressing and holding the ...

3-1 CHAPTER 3 Switch Hardware Cabletron Systems offers a full line of ATM products that work together to provide a complete ATM network solution. The Cabletron SFCS-200WG ATM switch provide high-performance ATM connectivity for LAN workgroup anddesktop applications. The SFCS-200BX ATM switch and the...

3-2 Switch Hardware 3.1 Switch Hardware Configurations The SFCS-200WG, as shown in Figure 3.1, is a self-contained ATM switch thatprovides an Ethernet connection for network management access. TheSFCS-200WG ATM switch hardware consists of a single switch board with ani960 SCP, network modules, and f...

3-5 Switch Hardware 3.2 Switch Hardware Components 3.2.1 Switch Board The switch board (also referred to as the “switch fabric”) contains the VPI/VCI lookup tables and routing circuitry to ensure that a cell received from aninput port is correctly switched to one or more output ports. The SFCS-200WG...

3-6 Switch Hardware 3.2.2.1 i960 Switch Control Processor The front panel of an i960 SCP for the SFCS-200WG, SFCS-200BX, and theSFCS-1000 includes the following features: a RESET button, an RS-232 serialport, an Ethernet 10BaseT port, a NEXT pushbutton, a SELECT pushbutton, adisplay LED, and a power...

3-8 Switch Hardware 3.2.2.1.4 CTL Port A control port inside the SCP, referred to in the switch software as the CTLport, is a logical (not physical) location where cells that are directed to theSCP itself are sent. The CTL port has two roles, serving as both a host and aswitch board controller. All ...

3-11 Switch Hardware 3.2.4 Power Supply Modules The SFCS-200BX and the SFCS-1000 each come with two removable powersupply modules. In the event of a single power supply failure, the power sup-ply indicator LED(s) on the front panel of the supplies will indicate the failedsupply. The failed power sup...

3-12 Switch Hardware 3.2.4.2 SFCS-1000 AC Power Supply (Model A) The model A AC power supply for an SFCS-1000 is shown in Figure 3.7. Figure 3.7 - Model A SFCS-1000 AC Power Supply AC CAUTION: This unit has more than one power cord. To reduce the risk of electric shock, disconnect two power supply c...

3-13 Switch Hardware 3.2.4.2.1 Power Supply LEDs There are four LEDs on the front panel of the model A SFCS-1000 AC powersupply which indicate the status of the power supply. The LEDs and theirfunctions are described in the following table: Table 3.5 - SFCS-1000 Power Supply LED Descriptions 3.2.4.2...

3-15 Switch Hardware 3.2.4.3 SFCS-1000 AC Power Supply (Model B) The model B AC power supply for an SFCS-1000 is shown in Figure 3.8. Figure 3.8 - Model B SFCS-1000 AC Power Supply CAUTION: This unit has more than one power cord. To reduce the risk of electric shock, disconnect two power supply cord...

3-19 Switch Hardware 3.2.7 SFCS-1000 Common Equipment Card (CEC) The CEC provided with the SFCS-1000 performs several functions. Becauseeach SCP contains an Ethernet port, a major function of the CEC is to providea single, unified Ethernet port connection for all of the SCPs. The CEC is alsoresponsi...

3-20 Switch Hardware The alarm relay contacts are normally closed when there is no power to theswitch. The user can attach alarm circuits to these contacts to trigger an exter-nal alarm in the case of an alarm condition on the switch. The user can define AL1 and AL2 as major and minor alarm indicato...

3-21 Switch Hardware 3.2.7.3 CEC Status LEDs This subsection discusses the meaning of the status LEDs on the CEC of theSFCS-1000 switch. The LEDs have been designed to provide information per-taining to the state of the switch at a glance. Figure 3.11 - CEC Status LEDs There are eight status LEDs lo...

3-22 Switch Hardware 3.2.7.3.2 Power Supply LEDs There are two power supply LEDs on the front panel of the CEC, one for eachpower supply. The LEDs for the two power supplies should be illuminatedyellow, indicating that the CEC is on and that the power supply correspond-ing to that LED is functioning...

4-1 CHAPTER 4 Switch Setup This chapter describes how to handle and set up a Cabletron ATM switchprior to its operation. 4.1 Introduction Before installing a Cabletron ATM switch, there are several important factorsthat must be taken into consideration, depending on the type of installationsite. The...

4-2 Switch Setup 4.2.1 Inventorying the Unit A complete inventory of the Cabletron ATM switch package should be per-formed before any power is supplied to the unit. The Cabletron ATM switch package should contain the following: • Cabletron ATM switch• Cabletron ATM Switch User ’s Manual (this manual...

4-3 Switch Setup 4.3 Electrical Considerations The following items should be considered when setting up the switch: CAUTION Consideration should be given to the connec-tion of the equipment to the supply circuit andthe effect that the overloading of circuits couldhave on overcurrent protection and s...

4-5 Switch Setup 4.4.2 Installing the Rack-mount Brackets To install the rack-mount brackets and cable relief strain rail, use the follow-ing procedure: 1. Carefully place the SFCS-200BX unit upside down on a clean, flat,sturdy work surface with the front of the unit still facing front. 2. Using a P...

4-12 Switch Setup 4.7 Installing the Serial Cable Connect the serial cable (supplied with the switch) from the switch’s serialport to any tty-type device (such as a terminal, or the serial port of a worksta-tion or PC running a terminal emulation program). NOTE: The switch’s tty port comes configure...

4-13 Switch Setup 4.8 Modem Configuration All Cabletron ATM switches support modem access. This may be useful if aswitch is installed in a remote location where direct, physical access to theswitch is not possible or practical. Keep the following in mind when using amodem to access a Cabletron ATM s...

4-14 Switch Setup 4.9 Configuring IP Addresses The recommended configuration for a Cabletron ATM switch is to assign anIP address to its network interfaces. This allows you to communicate with theswitch from any workstation connected to your ATM LAN. IP addresses mustbe assigned to the network inter...

4-15 Switch Setup 4.10 AMI Security The administrative password on your Cabletron ATM switch may be changedto provide password-protected access to AMI. Cabletron Systems recom-mends that you do this to prevent unauthorized users from accessing yourCabletron ATM switch. This option is available in AM...

4-16 Switch Setup 4.12 Verifying the Installation To verify that your switch is up and running, log in to AMI and open a sessionon the switch. Enter the following parameters at the localhost::> prompt to show the configuration of all of the ports on an individual switch fabric: configuration port...

5-1 CHAPTER 5 Hardware Maintenance Procedures This chapter discusses various hardware maintenance procedures for theCabletron ATM switches. Items discussed include the following: • Network Module Replacement• Power Supply Replacement• Fan Tray Replacement• Switch Control Processor Replacement• Switc...

5-2 Hardware Maintenance Procedures 5.1.2 Multicast Mode When hot-inserting or hot-swapping a network module, the mode in whichthe switch is running must also be considered. A Cabletron 200 Series switchcan operate in one of two multicast modes: extended mode or non-extendedmode. • Extended mode - T...

5-3 Hardware Maintenance Procedures 5.1.3 Hot-swapping Network Modules When removing or replacing network modules, use the following procedure: WA R N I N G ! To reduce risk to the user and to prevent dam-age to equipment, it is recommended that youuse the included grounding strap when han-dling thi...

5-4 Hardware Maintenance Procedures 5.2 Power Supply Module Replacement The power supplies in the SFCS-200BX and the SFCS-1000 are hot-swappable,meaning that they can be removed/replaced without having to shut downthe switch. WA R N I N G ! DO NOT attempt to replace a power supplymodule without read...

5-6 Hardware Maintenance Procedures 5.2.2 SFCS-1000 Power Supply Module Replacement 5.2.2.1 Replacing an SFCS-1000 AC Power Supply (Model A) A model A AC power supply module for an SFCS-1000 is shown in Figure 3.2. Figure 5.2 - Model A SFCS-1000 AC Power Supply AC CAUTION: This unit has more than on...

5-12 Hardware Maintenance Procedures 5.3 SFCS-1000 Fan Tray Replacement The SFCS-1000 has a removable fan tray with large fans that cool the switchhardware and power supply modules. Located at the base of the upright unit,the fan tray is removable from the front of the unit and is hot-swappable,mean...

5-13 Hardware Maintenance Procedures 5.4 Switch Control Processor Replacement The following procedure explains how to remove an i960 switch controlprocessor (SCP) from a switch fabric and install a new SCP. WA R N I N G ! It is highly recommended that you use theincluded grounding strap when handlin...

5-15 Hardware Maintenance Procedures 5.5 Switch Board Replacement The switch boards in the SFCS-1000 are hot-swappable, meaning that theycan be removed and replaced with the chassis under power. The proper pro-cedure for hot-swapping a switch board is as follows: WA R N I N G ! It is highly recommen...

6-1 CHAPTER 6 Software Upgrade Instructions This chapter details the steps necessary to upgrade the software on yourCabletron ATM switch. Some instructions in this chapter are only necessaryunder certain conditions—check the following before you proceed: • If, after performing the upgrade, you wish ...

6-2 Software Upgrade Instructions 6.1 Obtaining the Software Upgrade File via Diskette Using the Cabletron Systems distribution diskettes, the upgrade softwaremust be installed on a workstation attached (via Ethernet or ATM) to the SCPbeing upgraded. The first disk contains a part of the distributio...

6-4 Software Upgrade Instructions 6.2 Performing the Software Upgrade To perform the software upgrade, you will use the operation upgrade com- mand in AMI. The underlying file transfer mechanism used by this commandis TFTP. If TFTP is to run properly between two machines, the file(s) beingtransferre...

6-5 Software Upgrade Instructions NOTE: If you obtained the upgrade file via ftp, full path to remotefile is the name of the uncompressed file. If you obtained the filefrom diskette, full path to remotefile is the path name printed during extraction. For example, if you used ftp, you would enter som...

6-7 Software Upgrade Instructions 6.3 Changing between Multiple Versions of Software It is possible to select between multiple versions of installed software at anytime (not just during an upgrade procedure). You can display all the versionsthat are installed by typing the following: localhost::oper...

6-8 Software Upgrade Instructions At this point, the switch is still running FT330.35 , but CURRENT is pointing to FT340.11 . To make the change complete, enter the following: localhost::operation> reboot Are you sure you want to reboot this switch [n]? y When the SCP reboots, it will look to see...

6-9 Software Upgrade Instructions 6.4 Using bootp to Download Software to the Switch NOTE: Section 6.5 needs to be performed only if yourSCP fails to boot from its FLASH. 6.4.1 Overview Each SCP on a Cabletron switch comes with its hardware address (EthernetMAC address) burned in from the factory, b...

6-10 Software Upgrade Instructions Before any of the above changes can take effect, inetd must re-read the config- uration file. NOTE: If you need to set up a tftpboot server, asdescribed in Section 6.5.4, the following pro-cess is not necessary at this time. Instead,make inetd re-read its configura...

6-11 Software Upgrade Instructions NOTE: Make sure the last line added to bootptab ends in a colon (:) and not a backslash (\).Otherwise, that line will merge with the nextentry, causing your switch to cycle in itsattempts to find a bootp server. The variables in the previous example are defined as ...

6-12 Software Upgrade Instructions 6.4.4 Setting Up a tftpboot Server To set up a tftpboot server, on a SunOS 4.1.x system, perform the followingsteps: NOTE: This procedure only has to be done the firsttime that the switch is turned on and eachSCP is upgraded. The next time that the soft-ware is upg...

A-1 APPENDIX A Troubleshooting The troubleshooting tests detailed in this appendix will clearly indicate andidentify the most common problems in establishing ATM networks. There-fore, before calling Cabletron Systems’ Technical Support, perform these teststo correct or at least pinpoint the problem....

A-3 Troubleshooting A.1.1 Run Looptest To determine if an interface is functioning properly, run the looptest utility on a host that has been disconnected and isolated from the network. NOTE: Before running looptest , the Receive and Transmit connectors on the backplate of thecard must be connected ...

A-6 Troubleshooting A.1.5 Check Firmware To check whether or not the firmware is running correctly, issue the followingcommand: atmstat fa0 1 In this command, the last parameter “1”, causes the command to be repeatedat one-second intervals. If the firmware is running correctly, the response will sho...

A-7 Troubleshooting A.1.6 Check Physical Link To see the carrier state of the board, issue the following command: atmstat -d fa0 The -d option displays device statistics in the following format: Device statistics: Buffer Allocation Failures Type 1 Type 2 Small Large Small Large Receive Queue Full Ca...

A-8 Troubleshooting A.2 Testing Network Connectivity Using PVCs The network connectivity tests require that two ATM adapters be connectedto an ATM switch fabric with PVCs (as shown in Figure A.2). The carrierlights should be extinguished on the adapters and on the switch fabric, indi-cating that the...

A-11 Troubleshooting A.2.1 Verifying the Outgoing ATM ARP Entry To verify the outgoing ATM ARP cache entry for the endstation originatingthe ping, enter the following command on the host: atmarp -a The following is an example of a typical ATM ARP cache display: Outgoing connections: fa0: ws2-atm (19...

A-12 Troubleshooting A.2.2 atmstat To determine a particular failure state, enter the following command on theremote workstation while continuously pinging: atmstat fa0 1 PHY/ATM/AAL statistics: Output Input Errors ATM AAL* ATM AAL* 4B5B 4B5B ATM AAL* AAL* Cells CS-PDUs Cells CS-PDUs Framing Hdr-CRC...

A-15 Troubleshooting A.3 Collecting Additional Information Once basic adapter installation and network connectivity have been tested,this section explains how to obtain all of the additional information that youneed to have ready before calling Cabletron Systems Technical Support. Thisinformation sh...

A-17 Troubleshooting netstat -in Name Mtu Network Address Ipkts Ierrs Opkts Oerrs Coll ec0 1500 192.88.243 192.88.243.171 1173050 39926 509363 0 107115 fa0 9188 198.29.38 198.29.38.206 0 0 0 0 0 qaa0 9180 198.29.22 198.29.22.206 0 0 0 0 0 qaa1*9180 none none 0 0 0 0 0 qaa2*9180 none none 0 0 0 0 0 q...

A-18 Troubleshooting A.3.3 Switch Information On the host, at a command line, type the following commands and note theresponses: • atmstat fa0 command • netstat -ai command • asxmon command • cport command Log in to the ATM Management Interface (AMI) and open a session on theswitch fabric to check t...

A-19 Troubleshooting asxmon <switch_name> ASX-200 switch up 3:35, 17 ports (9 active), software 2.3.5, hardware 1.1 port name uptime VPs/max VCs/max Kb/s free max total Mb B1 198.29.22.34 2:57 1/1 5/5 0 0 140000 847 B2 198.29.22.18 3:35 1/1 3/3 0 0 140000 141 C1 198.29.22.27 3:35 1/1 4/4 0 0 1...

A-20 Troubleshooting The following commands are run by logging in to AMI and opening a sessionon the switch fabric. Enter the following parameters at the prompt for thetype of network modules that are installed in your switch fabric: configuration spans show Port VPI State Type CDVT Action RemoteAdd...

A-21 Troubleshooting configuration uni30 show Port VPI State ILMI UNIside Type OperType RemoteAddress 1C1 0 down down network auto privateUNI 1C2 0 down down network auto privateUNI 1C3 0 down down network auto privateUNI 1C4 0 down up network auto privateUNI 169.144.64.108 1D2 0 down down network a...

A-22 Troubleshooting configuration port ds1 show Port Carrier Status Mode Framing Loopback ClockSource LineLength IdleCells 1C1 no 0x60 hcs ESF none internal Lt110 unassigned 1C2 no 0x60 hcs ESF none internal Lt110 unassigned configuration port sonet show Port Width Carrier Status Line Mode Loopback...

B-1 APPENDIX B SCP Diagnostics The tests provided in this section are very specific diagnostics that are only tobe run if you have determined that there is a problem with your SCP. Thediagnostics for the SFCS-200WG, SFCS-200BX, and SFCS-1000 are describedfirst. B.1 SFCS-200WG, SFCS-200BX, SFCS-1000 ...

B-4 SCP Diagnostics B.1.2 Running the Hardware Tests This last portion from the displayed list is the group of hardware tests that theuser can run on the SCP: test-clock - test Real Time Clock test-dram - test DRAM test-dc <bank> <chip> - test DRAM chip # <chip> in bank <bank>...

B-5 SCP Diagnostics B.1.2.3 DRAM Chip Test This test checks the functionality of a DRAM chip. It takes about two secondsto run. =>test-dc a DRAM chip: OK B.1.2.4 Ethernet Test This test checks the functionality of the Ethernet chip. It takes about two sec-onds to run. => test-ethernet Ethernet...

B-6 SCP Diagnostics . . Erase Chip Pattern 1 Erase Chip Pattern 2 Erase Chip Pattern 3 Flash: OK B.1.2.6 FLASH Chip Test This test checks the functionality of an individual FLASH chip. It takes aboutone and a half minutes to run. NOTE: It is recommended that you back up yourCDB before running this t...

B-7 SCP Diagnostics B.1.2.7 Serial Port Test This test checks the serial port’s functionality. It takes about two seconds torun. => test-serial Serial: OK B.1.2.8 SRAM Test This test checks the SRAM’s functionality. It takes about two seconds to run. NOTE: It is recommended that you back up yourC...

B-8 SCP Diagnostics B.1.2.11 Complete Hardware Test This series of tests checks the functionality of all of the hardware devices, inthe SCP including the FLASH chips and SRAM. It takes about six minutes torun. NOTE: It is recommended that you back up yourCDB before running this test. The chips aresa...

C-1 APPENDIX C Hardware Specifications This appendix provides information about the hardware for all of CabletronSystems’ ATM products. Information provided includes fiber-optic and UTPcabling specifications; pinout specifications; and hardware and general oper-ating specifications. The products des...

C-5 Hardware Specifications C.2 ATM Network Modules The LAN and WAN network modules are the physical ATM port interfacecards that provide LAN/WAN connectivity to other ATM switches, ATM-compatible desktop computers and servers, hubs, routers, multiplexers, andcarrier ATM services. Currently, network...

C-11 Hardware Specifications C.2.5.1 Connecting Switches with TP25 Network Modules The TP25 network modules have a standard RJ45 connector that uses pins 1,2, 7 and 8. When connecting switches using TP25 network modules, you willneed to use a UTP crossover cable with the following specification: • P...

C-19 Hardware Specifications C.3 ATM Adapters The family of ATM adapters provides a flexible ATM interface for the commu-nications needs of today’s high-speed workstations and personal computers. C.3.1 Adapter Cabling Specifications C.3.1.1 Fiber-Optic Cable Specifications The table below lists the ...

g-1 GLOSSARY 802.1d Spanning Tree Bridging - the IEEE standard for bridging; a MAC layer standard for transparently connecting two or more LANs (often calledsubnetworks) that are running the same protocols and cabling. This arrange-ment creates an extended network, in which any two workstations on t...

g-6 GLOSSARY DIP Switch (Dual In-line Package) - a device that has two parallel rows of contacts that let the user switch electrical current through a pair of those con-tacts to on or off. They are used to reconfigure components and peripherals. Domain Name Server - a computer that converts names to...

g-10 GLOSSARY In a Class A network, the first of the numbers is the network number, the lastthree numbers are the local host address. In a Class B network, the first two numbers are the network, the last two arethe local host address. In a Class C network, the first three numbers are the network add...

g-12 GLOSSARY LECS (LAN Emulation Configuration Server) - the LECS is responsible for the initial configuration of LECs. It provides information about availableELANs that a LEC may join, together with the addresses of the LES and BUSassociated with each ELAN. leq - a FORE program that provides infor...

g-13 GLOSSARY MicroChannel - a proprietary 16- or 32-bit bus developed by IBM for its PS/2 computers’ internal expansion cards; also offered by others. MTU (Maximum Transmission Unit) - the largest unit of data that can be sent over a type of physical medium. Multi-homed - a device that has both an ...

g-15 GLOSSARY Physical Layer (PHY) Connection - an association established by the PHY between two or more ATM-entities. A PHY connection consists of the concat-enation of PHY links in order to provide an end-to-end transfer capability toPHY SAPs. PMD (Physical Medium Dependent) - a sublayer concerne...

g-20 GLOSSARY trap - a program interrupt mechanism that automatically updates the state of the network to remote network management hosts. The SNMP agent on theswitch supports these SNMP traps. UBR (Unspecified Bit Rate) - a type of traffic that is not considered time-criti- cal (e.g., ARP messages,...

g-21 GLOSSARY VINES (Virtual Network Software) - Banyan’s network operating system based on UNIX and its protocols. Virtual Channel Switch - a network element that connects VCLs. It termi- nates VPCs and translates VCI values. The Virtual Channel Switch is directedby Control Plane functions and rela...