, X25Router 2000, Version 1.1					SPD 28.86.01 (Formerly X25router)   DESCRIPTION   I The X25router 2000 is a communications product that provides routing and  G X.25 communications services for a Local Area Network (LAN). It allows  L communications with nodes outside the LAN within a Wide Area Network (WAN). J By using an X25router 2000, the routing load on other nodes on the LAN is 4 reduced, releasing resources for other applications.  G Note:	 The X25router 2000 software product runs on the DEC MicroServer  J          (DEMSA) hardware unit or the DEC MicroServer-SP (DEMSB) hardware K          unit. The X25router 2000 software license is available as part of            two packages:  @ 	 oo    The X25router 2000 package includes the X25router 2000 H               software license and the DEC Microserver (DEMSA) hardware                unit.   G 	 oo    The X25router 100 package include the X25router 2000 software  G               license and the DEC MicroServer-SP (DEMSB) hardware unit.   J The X25router 2000 software running on the DEC MicroServer (DEMSA) or DEC J MicroServer-SP (DEMSB) provides the following services to Phase IV DECnet = nodes on a IEEE 802.3 or ISO 8802/3 Local Area Network (LAN):    oo   DECnet routing services   " oo   X.25 communications services DECnet Routing Services   J For DECnet routing purposes, Phase IV DECnet networks consist of a number K of linked areas. Each area is not limited to a specific geographic region,  H but is often localized (such as a LAN in a building). DECnet routing is F handled by specified routing nodes, which may have to do this task in E addition to providing services to users. DECnet routing works on two   levels:   N oo   Level 1 routers provide routing services between nodes within an area.  &     This is called intra-area routing.  N oo   Level 2 routers provide routing services between areas.  This is called      inter-area routing.   K The X25router 2000 running on the DEC MicroServer is a routing system that  L can act as a level 1 and/or a level 2 router. The system routes data over a H LAN (Ethernet) circuit, synchronous DDCMP circuits, and DECnet circuits H established across X.25 PSDNs. This gives other DECnet nodes on the LAN G access to remote nodes, and also relieves them of the routing overhead.   I The X25router 2000 running on the DEC MicroServer-SP is a routing system  I that can act only as a level 1 router. The system routes data over a LAN  K (Ethernet) circuit and DECnet circuits established across X.25 PSDNs. This  J gives other DECnet nodes on the Ethernet access to remote nodes, and also H relieves them of the routing overhead. If required, the system can also 3 route data over a single synchronous DDCMP circuit.    X25 Communication Services  L For X.25 communications purposes, the X25router 2000 allows DECnet users to K reach remote DECnet nodes across a supported PSDN. This facility is called  J Data Link Mapping (DLM). The X25router 2000 also acts as a connector node I to provide access to supported PSDNs for any system on the LAN running a  E supported VAX P.S.I. Access product. (Note that VAX P.S.I. Access is  + available only on VMS or MicroVMS systems.)   G The X25router 2000 can be used in several different ways. For example,  7 running on the DEC MicroServer, the X25router 2000 can:   E oo   Act as a level 1 router to route data to nodes in the same area   C oo   Act as a level 2 router to route data to nodes in other areas   8 oo   Connect to a DECnet node in another area via DDCMP  9 oo   Act as an access point to a PSDN for nodes on a LAN   E oo   Connect to remote DECnet nodes in other areas via a public PSDN   ? oo   Connect to remote DECnet nodes by means of a private PSDN   2 oo   Provide a point-to-point ISO 8208 connection     System Overview   I The X25router 2000 system is a combination of hardware and software. The  J X25router 2000 software runs on either the DEC MicroServer (DEMSA) or the 2 DEC MicroServer-SP (DEMSB) communications  server.  E The major features of the X25router 2000 software running on the DEC   MicroServer (DEMSA) are:   oo   Physical Characteristics  ?     -	 A table top unit, which can also be rack or wall mounted        -	 Status display   *     -	 Ethernet and four synchronous ports  E     -	 The four synchronous ports can be used as either DECnet DDCMP  (          connections or X.25 connections  # oo   Synchronous Line Capabilities   0     -	 Line speeds of up to 384K bits per second  B     -	 Supports the following interchange circuits and electrical           interfaces:  0     	 CCITT - V.24, V.28, V.35, V.36, V.11, V.10  3     	 EIA   - RS232-C, RS232-D, RS449, RS422, RS423   ?     -	 Supports CCITT (1980) X.21 for leased line services only   2     -	 Full modem control on all synchronous lines  ! oo   DECnet Routing Capabilities   6     -	 DECnet Phase IV Level 1 and/or level 2 routing.  F     -	 Provides routing services between 63 areas, each of up to 1023 F          nodes. These are the maximum values permitted by the Digital A          Equipment Corporation's Network Architecture. Note that  J          satisfactory operation in large networks requires proper network           planning.  F     -	 Adaptive routing to and from the LAN, and using up to 63 other D          routing circuits (DDCMP or DLM) over the synchronous links.  H     -	 Communicates with remote Phase III nodes in the same DECnet area.  D     -	 Path splitting, where there are two or more equal-cost paths I          between the X25router 2000 and the destination DECnet node. For  K          this feature, all the destination nodes must support out-of-order            packet caching.   oo   DDCMP Capabilities  A     -	 Communicates with all supported synchronous Digital DDCMP  '          products, excluding the DMC11.   F     -	 Works on point-to-point or multipoint links. However, on DDCMP J          multipoint links, the X25router 2000 can act only as a tributary.  +     -	 Full- or half-duplex communications.    oo   X.25 Capabilities   A     -	 Connects to multiple supported PSDN(s) on a per-line basis   I     -	 Can have more than one connection to a PSDN. Each connection must  J          have a unique DTE address. The X25router 2000 can share outgoing 8          calls between all the DTEs connected to a PSDN.  D     -	 Supports both Permanent Virtual Circuits (PVCs) and Switched J          Virtual Circuits (SVCs). PVCs and SVCs can be used either as DLM I          circuits (VMS and ULTRIX hosts) or as virtual circuits with VAX            P.S.I. Access nodes.   I     -	 Supports a maximum of 512 PVCs and/or SVCs, of which a maximum of             63 can be DLM circuits.  E The major features of the X25router 2000 software running on the DEC   MicroServer-SP (DEMSB) are:    oo   Physical Characteristics  ?     -	 A table top unit, which can also be rack or wall mounted        -	 Status display   -     -	 Ethernet and a single synchronous port   A     -	 The synchronous port can be used as either a DECnet DDCMP  )          connection or an X.25 connection   # oo   Synchronous Line Capabilities   2     -	 Line speeds of up to 19.2K bits per second   B     -	 Supports the following interchange circuits and electrical           interfaces:  0     	 CCITT - V.24, V.28, V.35, V.36, V.11, V.10  4     	 EIA   - RS232-C, RS232-D, RS449, RS422, RS423   ?     -	 Supports CCITT (1980) X.21 for leased line services only   1     -	 Full modem control on the synchronous line   ! oo   DECnet Routing Capabilities   ,     -	 DECnet Phase IV Level 1 routing only.  G     -	 Provides routing services for up to 16 end nodes within its own            area.  E     -	 Adaptive routing to and from the LAN, and using up to 2 other  H          routing circuits  (2 DLM or 1 DDCMP) over the synchronous link.  H     -	 Communicates with remote Phase III nodes in the same DECnet area.   oo   DDCMP Capabilities  A     -	 Communicates with all supported synchronous Digital DDCMP  '          products, excluding the DMC11.     F     -	 Works on point-to-point or multipoint links. However, on DDCMP J          multipoint links, the X25router 2000 can act only as a tributary.  +     -	 Full- or half-duplex communications.    oo   X.25 Capabilities   +     -	 Connects to a single supported PSDN.   D     -	 Supports both Permanent Virtual Circuits (PVCs) and Switched J          Virtual Circuits (SVCs). PVCs and SVCs can be used either as DLM I          circuits (VMS and ULTRIX hosts) or as virtual circuits with VAX            P.S.I. Access nodes.   J     -	 Supports a maximum of 16 PVCs and/or SVCs, of which a maximum of 2           can be DLM circuits.   H The X25router 2000 running on either the DEC MicroServer (DEMSA) or DEC K MicroServer-SP (DEMSB) has the following management capabilities and tools:   J     -	 Configuration from a VMS or ULTRIX load host using a configuration           program.   D     -	 Dynamic reconfiguration while the system is running from any I          suitable VMS node or ULTRIX load host using the Network Control            Program (NCP).   H     -	 Remote management from any suitable VMS node or ULTRIX load host 8          using the DECnet Network Control Program (NCP).  E     -	 Remote problem diagnosis from any suitable VMS node using the            TRACE utility.   F     -	 Automatic dumping and reloading from a VMS or ULTRIX load host $          following a system failure.  8     -	 Event logging to any suitable VMS or ULTRIX node.   X.25 Capabilities   > Some of the major X.25 capabilities of the X25router 2000 are:  L oo   Can be used as a packet-mode DTE connected to a supported PSDN (Refer      to Table I).  J oo   Can be used as one end of a point-to-point connection that uses ISO J     7776 and 8208 standard protocols. The X25router can act as either the      DTE or DCE.   K     Note that the X25router does not provide any packet-switching exchange       facilities.   L oo   Conforms to CCITT recommendations X.25 (1978, 1980, 1984), and to ISO J     standards 3309, 7776, and 8208 (Refer to the Conformance to Standards "     section for more information).  ? oo   Uses LAPB or LAPBE as the frame-level data link protocol.   L oo   Can split and recombine messages that are longer than the packet size      of a DECnet DLM circuit.  M oo   Routes non-DECnet traffic from a PSDN to one or more VAX P.S.I. Access  K     nodes on the Ethernet. The network manager has full control over which  (     node the incoming call is routed to.   Supported Public Networks   K Table I (at the end of this SPD) lists the public PSDNs that are supported  L by the X25router 2000. The product is supported only on the public PSDNs in J the countries shown. Connections to public networks not listed in Table I L are not supported by Digital at the time of publication of this SPD. Please H consult your local Digital office for any questions you have concerning  other public PSDNs.   I In addition to the public PSDNs listed in Table I, certain private PSDNs  F are supported by the X25router 2000, and the appropriate profiles are ' included in the X25router 2000 product.    Conformance To Standards  E The X25router 2000 conforms to the following international standards:   N oo   CCITT recommendation X.25 (1978, 1980, or 1984) using the LAPB or LAPBE 8     variants of the data link and X.25 packet protocols.  " oo   ISO standards 7776 and 8208.  G oo   ISO standard 3309 for HDLC frame generation and recognition (BSC  0     framing is not supported) on the X.25 ports.  I The hardware can operate with a number of electrical interface standards  J (refer to the Line Support section). The X25router 2000 provides only the L electrical interface of a DTE rather than a DCE, and does not provide clock H signals. An external clock source (such as a modem) is required for any  X.25 or DDCMP synchronous port.   8 Optional X.25 Facilities Supported by the X25router 2000  J The X.25 recommendation covers a wide range of optional facilities. Table I II (located at the end of this SPD) lists these facilities and indicates  J which of these facilities the X25router 2000 supports. The central column F in Table II indicates the paragraph number in the X.25 recommendation ! (1984) that defines the facility.   J The features in Table II  are those that the X25router 2000 is capable of I supporting when used with a VAX P.S.I. Access product that also supports  E that feature. However, individual PSDNs may not support all of these  J features. The product documentation specifies the facilities available on  each supported public PSDN.    Line Support  H The DEC MicroServer (DEMSA) and the DEC MicroServer-SP (DEMSB) hardware D units are packaged in LANbridge 100-type enclosures that contain an K Ethernet interface port (IEEE 802.3 compatible). The DEC MicroServer has 4  L synchronous communications ports, while the DEC MicroServer-SP has a single K synchronous port. Both hardware units are supplied as table-top units, but  < can also be wall or rack mounted in a standard 19 inch rack.  A The DEC MicroServer and DEC MicroServer-SP support the following  / interchange circuits and electrical interfaces:   0 oo   CCITT - V.24, V.28, V.35, V.36, V.11, V.10  8 oo   CCITT - X.21 (1980) for leased line services only.  4 oo   EIA   - RS232-C, RS232-D, RS449, RS422, RS423     K The number of lines supported depends on the hardware unit, the electrical  2 interface type, and the maximum line speed in use:  :     DEC MicroServer                    Maximum Line Speed      						 (Kbps)   E         Interface Type                      19.2   64     256     384   , 	V.28/V.24	RS232-C/D	     4	    -	   -	    -. 	V.36/V.11	RS422/RS449	     4	    4	   3	    2% 	V.10		RS423		     4	    4	   -	    -   	V.35				     4	    4	   3	    2* 	X.21 leased line		     4	    4	   3	    2  9     DEC MicroServer-SP                 Maximum Line Speed      						 (Kbps)   4         Interface Type                          19.2   	V.28/V.24	RS232-C/D		 1 	V.10		RS423			 1  	V.35					 1 	X.21 leased line			 1  C Adapter cables provide the necessary interchange circuits for each  L synchronous line. Refer to the System Support Addendum (SSA 28.86.02-x) for 3 further information on the required adapter cables.   H Note that an external clock source, such as a modem, is always required.   Installation and Configuration  G The X25router 2000 has no file storage of its own and relies on a host  K system, called a load host, to load the software on the DEC MicroServer or   DEC MicroServer-SP.   J The minimum requirement is for one load host. However, the X25router 2000 K software can be installed on a number of load hosts. This helps to protect  K against loss of service if a single load host is unavailable, or unable to  % load the system for any other reason.   L The X25router 2000 software image is installed and configured on an ULTRIX, H VMS or MicroVMS load host on the same LAN as the DEC MicroServer or DEC J MicroServer-SP hardware unit. During system initialization, this software B image is down-line loaded to the hardware unit from the load host.  K The load host and configuration databases contain information that defines  L the X25router 2000 configuration. The network manager can create and modify L these databases by using utilities that are part of the load host software. L The configuration database is down-line loaded to the X25router 2000 during  system initialization.   Network Management  H The network manager controls the system when it is running by using the H DECnet Network Control Program (NCP) from any DECnet Phase IV node. For L example, the manager can use the NCP utility from one of the systems on the I LAN. Management of the X.25 part of this product is restricted to ULTRIX  # load host, VMS or MicroVMS systems.   / The NCP utility provides three basic functions:   L oo   Control the X25router 2000 (for example, starting and stopping lines, 2     setting parameters, and loading the software).  K oo   Display statistics and error information for the X25router 2000 (for  1     example, statistics on line usage or errors).   M oo   Test the components of the network (for example, loop messages through  J     all or part of a communications path to isolate a defective component)   Accounting and Securityu  B Each VAX P.S.I. Access node using the X25router 2000 can maintain K accounting information for each virtual circuit in use. The X25router 2000 e7 does not collect any additional accounting information.d  I The X25router 2000 can provide basic security mechanisms for all inbound  F calls. However, each VAX P.S.I. Access nodes can also provide further 4 security checks for both inbound and outbound calls.   Problem Solvingn  G The TRACE utility, which is available on VMS or MicroVMS systems only, SH assists problem-solving by tracing information at various stages in its   path through the X25router 2000.  I Event logging allows the network manager to monitor events generated  by o4 the X25router 2000 and also assists problem solving.  K The X25router 2000 will attempt to dump to and reload automatically from a 1. suitable load host following a system failure.  $ Path Splitting (DECnet routing only)  J The X25router 2000 running on the DEC MicroServer performs path splitting L provided the routing costs are set appropriately. Note that routing cost is H an arbitrary network management parameter set by the network manager to I control network traffic flow. If the cost between the X25router 2000 and uI the destination node is the same on multiple synchronous ports, then the ,E X25router 2000 splits the traffic across the ports. As a result, the rJ X25router 2000 provides higher data transfer rates and higher reliability  due to redundant paths.d   Performanceu  I The actual packet rate will be less than that indicated by the aggregate i= synchronous line speed, and is determined by such factors as:k  G oo   Type of traffic (routing updates or data packets) and data rates.e  M oo   Proportion of DDCMP to X.25 traffic, and the packet-sizes and ratio of  *     DLM to non-DLM traffic for X.25 links.  I oo   The path of DDCMP messages through the X25router 2000 (LAN-to-LAN, g7     synchronous-to-LAN, or synchronous-to-synchronous).c  ) oo   Communications line characteristicsy  < oo    Frequency and type of errors on the synchronous links   oo    Network topologyr   oo   Applications   oo   Protocol overhead    PREREQUISITE SUPPORT  I A Network Profile and DECnet Customer Support Plan covering all intended dG network nodes and their support may be required by your Digital office.y   INSTALLATION  J Digital requires that a customer's first purchase of the product includes J Digital Installation Services. These services provide for installation of C the software product by an experienced Digital software specialist.e  G Only customers experienced with Digital's X.25 products should attempt tF second or subsequent installations. Digital recommends that all other 3 customers purchase Digital's Installation Services.u  - The Digital installation service consists of:C  C oo   Installation of the X25router 2000 software on one load host.   A oo   Configuration of one X25router 2000 unit on that load host.p  K oo   Installation verification using one connection to one supported PSDN.e   Customer Responsibilities(  K In some cases, the X.25 network supplier (or PTT) may impose restrictions,  L limitations, or requirements on the proposed Digital network configuration. K The customer must ensure that they understand and adhere to these controls l for each and every network.d  4 Before the software is installed, the customer must:  D oo   Previously have installed all requisite software and hardware 5     (including terminals needed for the installation)t  K oo   Obtain, install, and demonstrate as operational any modems and other  A     equipment and facilities necessary to interface to Digital's       communication equipment.  L oo   Demonstrate where necessary that the modems used meet the appropriate      interface standards.  M oo   Designate one adjacent node to verify connectivity for any synchronous h     DDCMP circuits.r  N oo   Subscribe to the Open User Group and to at least two SVCs to be able to B     complete the product's installation checkout (this test loops D     information from the X25router 2000 to the PSDN and back to the J     X25router 2000). Systems that use PVCs or Closed User Groups only, or K     where the PSDN does not support calls to the same DTE address, require  F     specially negotiated arrangements for Digital installation of the      product.  F oo   Make available for a reasonable period of time all the hardware J     (including terminals), software, and communications facilities needed L     during the installation. This period of time is mutually agreed between      the customer and Digital.,  J Delays caused by failure to fulfill any of these responsibilities will be ; charged at the then prevailing rate for time and materials.h   Courtesy Installation Servicei  L This software product will be installed by Digital at no  additional charge E if you purchase it concurrently with a Startup  Service Package that  I includes installation service. This service  may not be available in all  
 countries.   HARDWARE REQUIREMENTSc  F VAX, MicroVAX or VAXstation configurations as specified in the System " Support Addendum (SSA 28.86.02-x).  I DEC MicroServer or DEC MicroServer-SP as specified in the System Support t Addendum (SSA 28.86.02-x).   SOFTWARE REQUIREMENTSh  G For each VMS or MicroVMS system acting as a load host or dump receiver:t  7 oo   VMS Operating System or MicroVMS Operating Systema   oo   DECnet-VAX  > For each ULTRIX system acting as a load host or dump receiver:  M oo   ULTRIX-32 Operating System or ULTRIX Worksystem Software including the p     ULTMOP subset    oo   DECnet-ULTRIX.  K Refer to the System Support Addendum (SSA 28.86.02-x) for availability and o4 required versions of prerequisite/optional software.   ORDERING INFORMATION    For VMS and MicroVMS Load Hosts:   Software Licenses: QL-VIAA*-** Software Media: QA-VIAA*-**2# Software Documentation: QA-VIAAA-GZ & Software Product Services: QT-VIAA*-**   For ULTRIX Load Hosts:   Software Licenses: QL-VIAA*-** Software Media: QA-VIAA*-**l# Software Documentation: QA-VIAAB-GZa& Software Product Services: QT-VIAA*-**  D *   Denotes variant fields. For additional information on available G     licenses, services, and media, refer to the appropriate price book.    SOFTWARE LICENSING  A You will need a separate license for each DEC MicroServer or DEC rL MicroServer-SP unit on which you will be using the software product (except # as otherwise specified by Digital).u  K The licensing provisions of Digital Equipment Corporation's Standard Terms 5K and Conditions provide in part that the software and any part thereof (but .J excluding those parts specific to the load hosts) may be used only on the L single DEC MicroServer hardware unit on which the software is operated, but K may be copied, in whole or in part (with the proper inclusion of Digital's  F copyright notice and any proprietary notices on the software) between $ multiple load hosts on the same LAN.  E This software is furnished under the licensing provisions of Digital uL Equipment Corporation's Standard Terms and Conditions. For more information I about Digital's licensing terms and policies, contact your local Digital   office.e  # LICENSE MANAGEMENT FACILITY SUPPORT. (VMS Systems Only)  K This layered product supports the VMS License Management Facility. License 8D units for this product are allocated on a per-CPU basis and are not + dependent on CPU-capacity or User/Activity.g  J For more information on the License Management Facility, refer to the VMS L Operating System Software Product Description (SPD 25.01.xx) or the License I Management Facility manual of the VMS Operating System documentation set.    SOFTWARE PRODUCT SERVICESL  J A variety of service options are available. For more information on these < or other services, please contact your local Digital office.   SOFTWARE WARRANTYi  J The X25router 2000 is warranted for use only with supported Phase III and J Phase IV DECnet products supplied by Digital. Any system connected to one A of the X25router's synchronous DDCMP links, or attempting DECnet aG communication via a PSDN, must run a current version of a DECnet Phase  J III/IV product using any supported synchronous interface, but excluding a 
 DMC11 device.o  L Digital has designed or adapted the X.25 portion of this product to operate  with:C  9 oo   Equipment conforming to ISO standards 7776 and 8208t  H oo   The public networks in the appropriate countries listed in Table I  J oo   Certain private PSDNs, for which Digital has included specific PSDN      profiles in this product  J Digital cannot offer its standard warranty for this product unless it has H been configured appropriately for the PSDN. If the product has not been G configured appropriately, the product will not be supported by Digital.   I Each PSDN listed in Table I indicates Digital's commitment to supporting wL the X25router 2000 for that public service. However, it does not imply that K the appropriate networking authority has granted network certification for  L the X25router 2000. Please contact your Digital sales office for up-to-date $ information on certification status.  L Warranty for this software product is provided by Digital with the purchase J of a license for the product as defined in the Software Warranty Addendum  of this SPD.      8                                                  TABLE I  J                               Public PSDNs Supported By The X25router 2000  W Country	                               Public Network and                 Comments and nV                                        CCITT Revisions                    Restrictions   Argentina				    Arpac Australia				    Austpac Austria					    Datex-Po Belgium					    DCS  Brazil					    Renpac % Canada					    Datapac (1976 or 1980)u 					    Infoswitcha Denmark					    Datapakn Eire					    Eirpac (1980) Finland					    Datapako France					    Transpac9 Hong Kong				    Datapak 					    Intelpak7 Indonesia				    SKDP  Italy					    Itapac. Japan					    DDX (1976, 1980)		  (See Note 1) 					    Venus-P (1980)  					    Tymneta Luxemburg				    LUXPAC  Malaysia				    Maypac Mexico					    Telepac Netherlands				    Datanet 1 New Zealand				    Pacnet  Norway					    Datapak Portugal				    Telepace Singapore				    Telepac South Korea				    Dacomnet. Spain					    Iberpacs Sweden					    Datapak' Switzerland				    Telepac (1978, 1980)t Taiwan					    PacnetN United Kingdom				    PSS  United States				    Accunet 					    Autonet 					    Bell Atlantic 					    Compuserveu 					    ConnNet 					    IMPACSP 					    Infonet" 					    Mark*Net Extended Service 					    Pulselink 					    Telenet 					    Tymnetg 					    Western Union PTN-1 					    Worldnets West Germany				    Datex-Pl   Note:o  g 1.  Digital offices in Japan can supply the mandatory additional information that explains the special l0     use of the X25router 2000 with the DDX PSDN.  j Unless otherwise acknowledged within the product's documentation, the trademarks under which services are i offered are proprietary to the respective national PTT, the owning or operating companies, or equivalent n
 organization.7 1  8                                                 TABLE II  P                         Optional X.25 Facilities Supported by the X25router 2000  ] Optional Facility                                          Paragraph Number         Supported O                                                            in CCITT X.25 (1984)a  =   1.  Extended packet sequence numbering		       6.2		    Yesr=   2.  Non-standard default window size			       6.10		    Yest?   3.  Default throughput class assignment		       6.11		    n/ak<   4.  Packet re-transmission				       6.4		    (See Note 1)2   5.  Incoming calls barred				       6.5		    n/a2   6.  Outgoing calls barred				       6.6		    n/a<   7.  One-way logical channel outgoing			       6.7		    n/a<   8.  One-way logical channel incoming			       6.8		    Yes7   9.  Closed user group (CUG)				       6.14.1		    Yest8  10   CUG with outgoing access				       6.14.2		    Yes8  11.  CUG with incoming access				       6.14.3		    Yes?  12.  Incoming calls barred within CUG			       6.14.4		    Yes5?  13.  Outgoing calls barred within CUG			       6.14.5		    Yes..  14.  CUG selection					       6.14.6		    Yes?  15.  CUG with outgoing access selection		       6.14.7		    NotF  16.  Absence of both CUG selection facilities		       6.14.8		    Yes.  17.  Bilateral CUG					       6.15.1		    Yes@  18.  Bilateral CUG with outgoing access		       6.15.2		    Yes7  19.  Bilateral CUG selection				       6.15.3		    Yese/  20.  Reverse charging					       6.18		    Yes 8  21.  Reverse charging acceptance			       6.19		    Yes5  22.  Local charge prevention				       6.20		    n/as8  23.  Network user identification			       6.21		    Yes2  24.  Charging information				       6.22		    Yes-  25.  RPOA selection					       6.23		    Yes 2  26.  Hunt group					       6.24		    (See Note 2)/  27.  Call redirection					       6.25		    n/anE  28.  Called line address modified notification		       6.26		    Yes :  29.  Call redirection notification			       6.27		    YesB  30.  Transit delay selection and indication		       6.28		    Yes8  31.  On-line facility registration			       6.1		    No5  32.  Non-standard packet size				       6.9		    Yes:>  33.  Flow control parameter negotiation		       6.12		    Yes9  34.  Throughput class negotiation			       6.13		    Yes *  35.  Fast select					       6.16		    Yes4  36.  Fast select acceptance				       6.17		    Yes.  37.  D-bit modification				       6.3		    No/  38.  Abbreviated address				      ---		    n/a39  39.  Datagram queue length selection			      ---		    NoE@  40.  Datagram service signal logical channel		      ---		    No:  41.  Datagram non-delivery indication			      ---		    No8  42.  Datagram delivery confirmation			      ---		    No>  43.  Call statistics (non-X.25)			      ---		    (See Note 3)   Notes:  H 1.  This is not applicable to a DTE. This product does not support the  D     reception of a level 3 Reject packet, and will not generate one.  I 2.  Each DTE must be assigned a unique addresses independent of the hunt aF     group address. The X25router 2000 can then ignore the hunt group. L     Alternatively, each line can be configured as if it were connected to a H     separate PSDN with each line having the same DTE address. In either E     case, all the lines must be connected to the same X25router 2000.2  K 3.  This product does not generate these statistics. However, a VAX P.S.I. tG     Access node can obtain statistics supplied by the PSDN through the l     programming interface.    ] 4.  The X25router 2000 does not support the following items of the CCITT X.25 recommendation:M       -	 Multi-link protocol  +     -	 Use of the D-bit in outgoing packetsS  Q (R)  The DIGITAL Logo is a registered trademark of Digital Equipment Corporation.iO (TM) DEC, DECnet, DECstation, DECsystem, VAX, MicroVAx, ULTRIX, VAXstation and t?      VAXserver are trademarks of Digital Equipment Corporation.0  
 November 1989  AE-KP96B-TNa  