Page 2 - RSRB
Overview of IBM Networking RSRB BC-204 Cisco IOS Bridging and IBM Networking Configuration Guide 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 between Token Ri...
Page 3 - Configuration Considerations
Overview of IBM Networking RSRB BC-205 Cisco IOS Bridging and IBM Networking Configuration Guide 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 potentially us...
Page 5 - DLSw Standard
Overview of IBM Networking DLSw+ BC-207 Cisco IOS Bridging and IBM Networking Configuration Guide This section contains a brief overview of DLSw+ which is described in the following topics: • DLSw Standard, page 207 • DLSw Version 2 Standard, page 207 • DLSw+ Features, page 208 DLSw Standard The DLS...
Page 6 - IP Multicast
Overview of IBM Networking DLSw+ BC-208 Cisco IOS Bridging and IBM Networking Configuration Guide 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 reduces the am...
Page 7 - Local Acknowledgment
Overview of IBM Networking DLSw+ BC-209 Cisco IOS Bridging and IBM Networking Configuration Guide This section contains information on the following topics related to DLSw+ features: • Local Acknowledgment, page 209 • Notes on Using LLC2 Local Acknowledgment, page 211 • DLSw+ Support for Other SNA F...
Page 9 - Notes on Using LLC2 Local Acknowledgment
Overview of IBM Networking DLSw+ BC-211 Cisco IOS Bridging and IBM Networking Configuration Guide 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 acknowledged, but ar...
Page 10 - DLSw+ Support for Other SNA Features
Overview of IBM Networking DLSw+ BC-212 Cisco IOS Bridging and IBM Networking Configuration Guide 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 timeouts onl...
Page 11 - STUN and BSTUN; STUN Networks
Overview of IBM Networking STUN and BSTUN BC-213 Cisco IOS Bridging and IBM Networking Configuration Guide 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 as a destin...
Page 12 - STUN Features
Overview of IBM Networking STUN and BSTUN BC-214 Cisco IOS Bridging and IBM Networking Configuration Guide 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 appear on th...
Page 15 - BSTUN Networks; LLC2 and SDLC Parameters
Overview of IBM Networking LLC2 and SDLC Parameters BC-217 Cisco IOS Bridging and IBM Networking Configuration Guide 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 protocol enab...
Page 16 - Cisco’s Implementation of LLC2
Overview of IBM Networking LLC2 and SDLC Parameters BC-218 Cisco IOS Bridging and IBM Networking Configuration Guide LLC2 and SDLC package data in frames. LLC2 and SDLC stations require acknowledgments from receiving stations after a set amount of frames have been sent before sending further data. T...
Page 17 - Cisco’s Implementation of SDLC; IBM Network Media Translation
Overview of IBM Networking IBM Network Media Translation BC-219 Cisco IOS Bridging and IBM Networking Configuration Guide Cisco’s Implementation of SDLC Cisco’s SDLC implementation supports the following features: • Frame Relay Access Support (FRAS) With FRAS, a router functions as a Frame Relay Acc...
Page 18 - SDLLC Media Translation Features; Virtual Token Ring Concept
Overview of IBM Networking IBM Network Media Translation BC-220 Cisco IOS Bridging and IBM Networking Configuration Guide Figure 91 SNA Data Link Layer Support SDLLC Media Translation Features The SDLLC feature allows a PU 4, PU 2.1, or PU 2 to communicate with a PU 2 SDLC device as follows: • SDLLC...
Page 19 - Resolving Differences in LLC2 and SDLC Frame Size
Overview of IBM Networking IBM Network Media Translation BC-221 Cisco IOS Bridging and IBM Networking Configuration Guide 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 which it co...
Page 20 - QLLC Conversion
Overview of IBM Networking IBM Network Media Translation BC-222 Cisco IOS Bridging and IBM Networking Configuration Guide 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 IBM has define...
Page 21 - Cisco’s Implementation of QLLC Conversion
Overview of IBM Networking IBM Network Media Translation BC-223 Cisco IOS Bridging and IBM Networking Configuration Guide Figure 95 QLLC Conversion Running on a Router with an Intermediate IP Network Cisco’s Implementation of QLLC Conversion SNA uses QLLC and X.25 as link layer protocols to provide ...
Page 22 - Comparing QLLC Conversion to SDLLC
Overview of IBM Networking IBM Network Media Translation BC-224 Cisco IOS Bridging and IBM Networking Configuration Guide As Figure 97 shows, a router need not directly connect the two IBM end nodes; instead, some type of backbone WAN can connect them. Here, RSRB transports packets between Router A ...
Page 23 - Other Implementation Considerations
Overview of IBM Networking IBM Network Media Translation BC-225 Cisco IOS Bridging and IBM Networking Configuration Guide circuits (PVCs) are available, but the favored use is SVC. While the router maintains a permanent connection to the X.25 network, a remote device can use each SVC for some bounde...
Page 24 - SNA FRAS
Overview of IBM Networking SNA FRAS BC-226 Cisco IOS Bridging and IBM Networking Configuration Guide SNA FRAS Using Frame Relay Access Support (FRAS), the Cisco IOS software allows branch SNA devices to connect directly to a central site front-end processor over a Frame Relay network. FRAS converts ...
Page 26 - NCIA
Overview of IBM Networking NCIA BC-228 Cisco IOS Bridging and IBM Networking Configuration Guide Figure 100 RFC 1490 Bridged Frame Format Because it includes the MAC header information in every frame, BAN supports multiple SNA devices sharing a single permanent virtual circuit without requiring SAP ...
Page 27 - NCIA I; NCIA Client/Server Model
Overview of IBM Networking NCIA BC-229 Cisco IOS Bridging and IBM Networking Configuration Guide NCIA I Cisco’s NCIA server feature implements RFC 2114, Data Link Switch Client Access Protocol. Using Cisco’s RSRB technology, NCIA I encapsulates the Token Ring traffic inside IP datagrams passed over ...
Page 29 - Advantages of the Client/Server Model; Extended Scalability
Overview of IBM Networking NCIA BC-231 Cisco IOS Bridging and IBM Networking Configuration Guide Advantages of the Client/Server Model The client/server model used in the NCIA Server feature extends the scalability of NCIA. In addition, it provides support for both the installed base of RSRB routers...
Page 30 - ALPS
Overview of IBM Networking ALPS BC-232 Cisco IOS Bridging and IBM Networking Configuration Guide Figure 103 NCIA Server Provides Independence from the Upstream Network Implementation ALPS The Airline Product Set (ALPS) is a tunneling mechanism that transports airline protocol data across a TCP/IP ne...
Page 31 - DSPU and SNA Service Point
Overview of IBM Networking DSPU and SNA Service Point BC-233 Cisco IOS Bridging and IBM Networking Configuration Guide Figure 104 ALPS Architecture Cisco’s ALPS feature provides an end-to-end solution for airlines and central reservation systems.The ALPS feature is integrated in the Cisco IOS softwa...
Page 33 - SNA Switching Services; Benefits of SNASw
Overview of IBM Networking SNA Switching Services BC-235 Cisco IOS Bridging and IBM Networking Configuration Guide SNA Switching Services Note SNA Switching Services functionality supersedes all functionality previously available in the APPN feature in the Cisco IOS software. SNASw configuration wil...
Page 35 - HPR Capable SNA Routing Services; Branch Extender
Overview of IBM Networking HPR Capable SNA Routing Services BC-237 Cisco IOS Bridging and IBM Networking Configuration Guide HPR Capable SNA Routing Services SNASw provides the following SNA routing functions: • Routes SNA sessions between clients and target SNA data hosts. • Supports full SNA class...
Page 37 - Usability Features; Dynamic CP Name Generation Support
Overview of IBM Networking Usability Features BC-239 Cisco IOS Bridging and IBM Networking Configuration Guide Usability Features SNASw contains the following usability features designed to make SNA networks easier to design and maintain: • Dynamic CP Name Generation Support, page 239 • Dynamic SNA ...
Page 38 - Responsive Mode Adaptive Rate-Based Flow Control; Management Enhancements; Console Message Archiving
Overview of IBM Networking Management Enhancements BC-240 Cisco IOS Bridging and IBM Networking Configuration Guide Responsive Mode Adaptive Rate-Based Flow Control Early HPR implementations failed to perform well in environments subject to packet loss (for example, Frame Relay, IP transport) and pe...
Page 39 - Trap 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-241 Cisco IOS Bridging and IBM Networking Configuration Guide Trap MIB Support for Advanced Network Management Awareness SNASw supports the APPN Trap MIB, which proactively sends traps with information about changes in SNA resource st...
Page 40 - Virtual Data-Link Control; Transport over DLSw+ Supported Media; Cisco Transaction Connection
Overview of IBM Networking Cisco Transaction Connection BC-242 Cisco IOS Bridging and IBM Networking Configuration Guide Connection to Channel Interface Processor and Channel Port Adapter Virtual Token Ring and SRB can be used to connect SNASw to the Channel Interface Processor (CIP) or Channel Port...
Page 41 - CTRC and CICS
Overview of IBM Networking Cisco Transaction Connection BC-243 Cisco IOS Bridging and IBM Networking Configuration Guide • CTRC supports the ability to configure routes for CICS transaction. Each transaction can be routed to a specific CICS region. • In addition to its CICS-related functionality, CT...
Page 42 - CTRC and DB2
Overview of IBM Networking Cisco Transaction Connection BC-244 Cisco IOS Bridging and IBM Networking Configuration Guide 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 router with...
Page 43 - Benefits of CTRC; CMCC Adapter Hardware
Overview of IBM Networking CMCC Adapter Hardware BC-245 Cisco IOS Bridging and IBM Networking Configuration Guide 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 database version...
Page 44 - Channel Interface Processor
Overview of IBM Networking CMCC Adapter Hardware BC-246 Cisco IOS Bridging and IBM Networking Configuration Guide Figure 112 Cisco Mainframe Channel Connection Adapters Channel Interface Processor The CIP for the Cisco 7000 with RSP7000 and Cisco 7500 series routers is designed for high-end network ...
Page 45 - ESCON Channel Port Adapter; Differences between the CIP and CPA
Overview of IBM Networking CMCC Adapter Hardware BC-247 Cisco IOS Bridging and IBM Networking Configuration Guide 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 chapter, referen...
Page 46 - 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-248 Cisco IOS Bridging and IBM Networking Configuration Guide Supported Environments The Cisco IOS software supports the following environments and features on the CMCC adapters: • TCP/IP Environments—CLAW, TCP/IP offload, I...
Page 47 - IP Host Backup; Cisco Multipath Channel+
Overview of IBM Networking CMCC Adapter Features for TCP/IP Environments BC-249 Cisco IOS Bridging and IBM Networking Configuration Guide IP Host Backup You can connect multiple mainframes to a single CMCC adapter using an ESCON director. Often, these mainframes run using the ESCON Multiple Image Fa...
Page 48 - CMCC Adapter Features for SNA Environments; Cisco SNA
Overview of IBM Networking CMCC Adapter Features for SNA Environments BC-250 Cisco IOS Bridging and IBM Networking Configuration Guide CMCC Adapter Features for SNA Environments The Cisco IOS software supports the following features for CMCC adapters in SNA environments: • Cisco SNA, page 250 • Cisc...
Page 49 - Cisco Multipath Channel
Overview of IBM Networking CMCC Adapter Features for SNA Environments BC-251 Cisco IOS Bridging and IBM Networking Configuration Guide 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 RSP7000 series ...
Page 50 - SNA Functions
Overview of IBM Networking CMCC Adapter Features for SNA Environments BC-252 Cisco IOS Bridging and IBM Networking Configuration Guide The TN3270 server feature offers an attractive solution when the following conditions need to be supported in an SNA environment: • Maintaining an IP backbone while ...
