Page 2 - RSRB
Overview of IBM Networking RSRB BC-202 Cisco IOS Bridging and IBM Networking Configuration Guide 78-11737-02 Note All commands supported on the Cisco 7500 series routers are also supported on the Cisco 7000 series routers. RSRB In contrast to Source-Route Bridging (SRB), which involves bridging betw...
Page 3 - Configuration Considerations
Overview of IBM Networking RSRB BC-203 Cisco IOS Bridging and IBM Networking Configuration Guide 78-11737-02 Configuration Considerations Use IP encapsulation only over a TCP connection within complex meshed networks to support connections between peers that are separated by multiple hops and can po...
Page 5 - DLSw Standard
Overview of IBM Networking DLSw+ BC-205 Cisco IOS Bridging and IBM Networking Configuration Guide 78-11737-02 This section contains a brief overview of DLSw+: • DLSw Standard, page 205 • DLSw Version 2 Standard, page 205 • DLSw+ Features, page 206 DLSw Standard The DLSw standard, documented in RFC 1...
Page 6 - IP Multicast
Overview of IBM Networking DLSw+ BC-206 Cisco IOS Bridging and IBM Networking Configuration Guide 78-11737-02 IP Multicast Multicast service avoids duplication and excessive bandwidth of broadcast traffic because it replicates and propagates messages to its multicast members only as necessary. It re...
Page 7 - Local Acknowledgment
Overview of IBM Networking DLSw+ BC-207 Cisco IOS Bridging and IBM Networking Configuration Guide 78-11737-02 This section contains information on the following topics related to DLSw+ features: • Local Acknowledgment, page 207 • Notes on Using LLC2 Local Acknowledgment, page 209 • DLSw+ Support for...
Page 9 - Notes on Using LLC2 Local Acknowledgment
Overview of IBM Networking DLSw+ BC-209 Cisco IOS Bridging and IBM Networking Configuration Guide 78-11737-02 3x74 operates as if the acknowledgments it receives are from the 37x5. Router B looks like the 3x74 to 37x5. Because the frames do not have to travel the WAN backbone networks to be acknowle...
Page 10 - DLSw+ Support for Other SNA Features
Overview of IBM Networking DLSw+ BC-210 Cisco IOS Bridging and IBM Networking Configuration Guide 78-11737-02 If you are using NetBIOS applications, note that there are two NetBIOS timers—one at the link level and one at the next higher level. Local acknowledgment for LLC2 is designed to solve link ...
Page 11 - STUN and BSTUN; STUN Networks
Overview of IBM Networking STUN and BSTUN BC-211 Cisco IOS Bridging and IBM Networking Configuration Guide 78-11737-02 Figure 88 VDLC Interaction with Higher-Layer Protocols The higher-layer protocols make no distinction between the VDLC and any other data-link control, but they do identify the VDLC...
Page 12 - STUN Features
Overview of IBM Networking STUN and BSTUN BC-212 Cisco IOS Bridging and IBM Networking Configuration Guide 78-11737-02 Figure 89 Comparison of STUN in Passthrough Mode and Local Acknowledgment Mode Note To enable STUN local acknowledgment, you first enable the routers for STUN and configure them to ...
Page 15 - BSTUN Networks; LLC2 and SDLC Parameters
Overview of IBM Networking LLC2 and SDLC Parameters BC-215 Cisco IOS Bridging and IBM Networking Configuration Guide 78-11737-02 BSTUN Networks The Bisync feature enables your Cisco 2500, 3600, 4000, 4500, 4700, and 7200 series router to support devices that use the Bisync data-link protocol. This p...
Page 16 - The Cisco Implementation of LLC2
Overview of IBM Networking LLC2 and SDLC Parameters BC-216 Cisco IOS Bridging and IBM Networking Configuration Guide 78-11737-02 modifying the control field parameters, you can determine the number of acknowledgments sent for frames received and the level of polling used to determine available stati...
Page 17 - The Cisco Implementation of SDLC; IBM Network Media Translation
Overview of IBM Networking IBM Network Media Translation BC-217 Cisco IOS Bridging and IBM Networking Configuration Guide 78-11737-02 The Cisco Implementation of SDLC The Cisco SDLC implementation supports the following features: • Frame Relay Access Support (FRAS) With FRAS, a router functions as a...
Page 18 - SDLLC Media Translation Features; Virtual Token Ring Concept
Overview of IBM Networking IBM Network Media Translation BC-218 Cisco IOS Bridging and IBM Networking Configuration Guide 78-11737-02 Figure 91 illustrates how SDLLC provides data link layer support for SNA communication. Figure 91 SNA Data Link Layer Support SDLLC Media Translation Features The SDL...
Page 19 - Resolving Differences in LLC2 and SDLC Frame Size
Overview of IBM Networking IBM Network Media Translation BC-219 Cisco IOS Bridging and IBM Networking Configuration Guide 78-11737-02 As part of its virtual telecommunications access method (VTAM) configuration, the IBM node on the Token Ring has knowledge of the SDLLC VTRA of the serial device with...
Page 20 - QLLC Conversion
Overview of IBM Networking IBM Network Media Translation BC-220 Cisco IOS Bridging and IBM Networking Configuration Guide 78-11737-02 QLLC Conversion Qualified Logical Link Control (QLLC) is a data link protocol defined by IBM that allows SNA data to be transported across X.25 networks. (Although IB...
Page 21 - The Cisco Implementation of QLLC Conversion
Overview of IBM Networking IBM Network Media Translation BC-221 Cisco IOS Bridging and IBM Networking Configuration Guide 78-11737-02 Figure 95 QLLC Conversion Running on a Router with an Intermediate IP Network The Cisco Implementation of QLLC Conversion SNA uses QLLC and X.25 as link layer protoco...
Page 22 - Comparing QLLC Conversion to SDLLC
Overview of IBM Networking IBM Network Media Translation BC-222 Cisco IOS Bridging and IBM Networking Configuration Guide 78-11737-02 Figure 97 QLLC Conversion Between a Single 37x5 and Multiple 3x74s across an Arbitrary WAN How communication sessions are established over the communication link vari...
Page 23 - Other Implementation Considerations; SNA FRAS
Overview of IBM Networking SNA FRAS BC-223 Cisco IOS Bridging and IBM Networking Configuration Guide 78-11737-02 Table 3 shows how the QLLC commands correspond to the SDLLC commands. Other Implementation Considerations Consider the following when implementing QLLC conversion: • To use the QLLC conve...
Page 26 - NCIA; NCIA I
Overview of IBM Networking NCIA BC-226 Cisco IOS Bridging and IBM Networking Configuration Guide 78-11737-02 NCIA Native Client Interface Architecture (NCIA) is a new software architecture introduced by Cisco to make accessing IBM SNA applications over routed internetworks more scalable and flexible...
Page 27 - NCIA Client/Server Model
Overview of IBM Networking NCIA BC-227 Cisco IOS Bridging and IBM Networking Configuration Guide 78-11737-02 • The NCIA Server communicates with other components in router, such as RSRB, SNASw, DLSw+, and DSPU. • Supports both connect-in and connect-out. • The NCIA client/server model is independent...
Page 28 - Advantages of the Client/Server Model; Extended Scalability
Overview of IBM Networking NCIA BC-228 Cisco IOS Bridging and IBM Networking Configuration Guide 78-11737-02 After the peer session has been established, the NDLC protocol establishes the circuit between the client and server. This circuit is used to transfer end-user data between the client and the...
Page 29 - Migration Support; ALPS
Overview of IBM Networking ALPS BC-229 Cisco IOS Bridging and IBM Networking Configuration Guide 78-11737-02 Migration Support Using a client/server model allows the NCIA Server feature to be independent of the upstream implementation, allowing it to be implemented in a network that is still using R...
Page 30 - DSPU and SNA Service Point
Overview of IBM Networking DSPU and SNA Service Point BC-230 Cisco IOS Bridging and IBM Networking Configuration Guide 78-11737-02 Figure 104 ALPS Architecture The Cisco ALPS feature provides an end-to-end solution for airlines and central reservation systems.The ALPS feature is integrated in the Ci...
Page 32 - SNA Switching Services; Benefits of SNASw
Overview of IBM Networking SNA Switching Services BC-232 Cisco IOS Bridging and IBM Networking Configuration Guide 78-11737-02 SNA Switching Services Note SNA Switching Services functionality supersedes all functionality previously available in the APPN feature in the Cisco IOS software. SNASw confi...
Page 34 - HPR Capable SNA Routing Services; Branch Extender
Overview of IBM Networking HPR Capable SNA Routing Services BC-234 Cisco IOS Bridging and IBM Networking Configuration Guide 78-11737-02 HPR Capable SNA Routing Services SNASw provides the following SNA routing functions: • Routes SNA sessions between clients and target SNA data hosts. • Controls SN...
Page 36 - Usability Features; Dynamic CP Name Generation Support; Responsive Mode Adaptive Rate-Based Flow Control
Overview of IBM Networking Usability Features BC-236 Cisco IOS Bridging and IBM Networking Configuration Guide 78-11737-02 Usability Features SNASw contains the following usability features designed to make SNA networks easier to design and maintain: • Dynamic CP Name Generation Support, page 236 • ...
Page 37 - User-Settable Port Limits; Management Enhancements; Console Message Archiving
Overview of IBM Networking Management Enhancements BC-237 Cisco IOS Bridging and IBM Networking Configuration Guide 78-11737-02 Mode ARB architecture. Responsive Mode ARB addresses all the drawbacks of the earlier ARB implementation, providing faster ramp-up, better tolerance of lost frames, and bet...
Page 38 - MIB Support for Advanced Network Management Awareness; LAN and IP-Focused Connection Types; Virtual Token Ring; Attachment to Local LANs
Overview of IBM Networking LAN and IP-Focused Connection Types BC-238 Cisco IOS Bridging and IBM Networking Configuration Guide 78-11737-02 MIB Support for Advanced Network Management Awareness SNASw supports the following Management Information Bases (MIBs): • IETF draft standard DLUR MIB (RFC 2232...
Page 39 - Connection to Frame Relay Transport Technologies; Virtual Data-Link Control; Transport over DLSw+ Supported Media; Cisco Transaction Connection
Overview of IBM Networking Cisco Transaction Connection BC-239 Cisco IOS Bridging and IBM Networking Configuration Guide 78-11737-02 same LAN. When using native LAN support, SNASw responds only to requests that target the MAC address configured on the local interface. Virtual Token Ring and SRB allo...
Page 40 - CTRC and CICS
Overview of IBM Networking Cisco Transaction Connection BC-240 Cisco IOS Bridging and IBM Networking Configuration Guide 78-11737-02 The CTRC software feature provides the following functionality: • CTRC allows Cisco routers to use the intersystem communication (ISC) protocol to provide a gateway be...
Page 41 - CTRC and DB2
Overview of IBM Networking Cisco Transaction Connection BC-241 Cisco IOS Bridging and IBM Networking Configuration Guide 78-11737-02 Figure 109 Cisco Router Configured with the CTRC Feature for CICS Communications CTRC and DB2 CTRC enables Cisco routers to implement IBM’s DRDA over TCP/IP. The Cisco...
Page 42 - Benefits of CTRC; CMCC Adapter Hardware
Overview of IBM Networking CMCC Adapter Hardware BC-242 Cisco IOS Bridging and IBM Networking Configuration Guide 78-11737-02 For a TCP/IP host connection, the router with CTRC routes the DRDA packets over TCP/IP without protocol changes. To use this TCP/IP passthrough feature of CTRC, the host data...
Page 44 - Differences Between the CIP and CPA
Overview of IBM Networking CMCC Adapter Hardware BC-244 Cisco IOS Bridging and IBM Networking Configuration Guide 78-11737-02 The Cisco 7200 series router supports online insertion and removal (OIR), which allows you to install or remove port adapters while the system is operating. Note In this chap...
Page 45 - Supported Environments; CMCC Adapter Features for TCP/IP Environments; Common Link Access to Workstation
Overview of IBM Networking CMCC Adapter Features for TCP/IP Environments BC-245 Cisco IOS Bridging and IBM Networking Configuration Guide 78-11737-02 Supported Environments The Cisco IOS software supports the following environments and features on the CMCC adapters: • TCP/IP Environments—CLAW, TCP/I...
Page 46 - IP Host Backup; Cisco Multipath Channel+
Overview of IBM Networking CMCC Adapter Features for TCP/IP Environments BC-246 Cisco IOS Bridging and IBM Networking Configuration Guide 78-11737-02 IP Host Backup You can connect multiple mainframes to a single CMCC adapter using an ESCON director. Often, these mainframes run using the ESCON Multi...
Page 47 - CMCC Adapter Features for SNA Environments; Cisco SNA
Overview of IBM Networking CMCC Adapter Features for SNA Environments BC-247 Cisco IOS Bridging and IBM Networking Configuration Guide 78-11737-02 CMCC Adapter Features for SNA Environments The Cisco IOS software supports the following features for CMCC adapters in SNA environments: • Cisco SNA, pag...
Page 48 - Cisco Multipath Channel
Overview of IBM Networking CMCC Adapter Features for SNA Environments BC-248 Cisco IOS Bridging and IBM Networking Configuration Guide 78-11737-02 Cisco Multipath Channel CMPC is Cisco System’s implementation of IBM’s MultiPath Channel (MPC) feature on Cisco 7500, Cisco 7200, and Cisco 7000 with RSP...
Page 49 - SNA Functions
Overview of IBM Networking CMCC Adapter Features for SNA Environments BC-249 Cisco IOS Bridging and IBM Networking Configuration Guide 78-11737-02 The TN3270 server feature offers an attractive solution when the following conditions need to be supported in an SNA environment: • Maintaining an IP bac...
