IBM 8265 Nways ATM Campus Switch - IBM Redbooks

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2.2.1.1 A-CPSW Software Versions Two versions of the control point software are available. A base version that includes IISP support and a PNNI version. The PNNI version provides: • Flexibility in the way ATM switches optimize link utilization • Automatic network selection of the least loaded route • Administrative weights on ATM links to favor certain links over others • Improvement in LAN Emulation network reliability • Simplified LAN Emulation setup Detailed explanations of the A-CPSW software operations are given in Chapter 3, “ATM Control Point Setup and Operations” on page 47. For general A-CPSW software information refer to Table 1. For detailed information refer to the product documentation referenced in Appendix F, “Related Publications” on page 231. Table 1. A-CPSW Software Versions and Memory Requirements Description Feature Number Part Number PCMCIA IISP code card Release 1.0 6505 13J8696 PCMCIA PNNI code card Release 1.0 ▐1▌ 6506 02L2415 PCMCIA IISP code card Release 2.0 ▐2▌ 6525 02L3056 PCMCIA PNNI code card Release 2.0 ▐1▌ ▐2▌ 6526 02L3057 CP/switch memory upgrade ▐3▌ 6516 13J8698 Notes: 2.2.2 A-CPSW Redundancy 16 IBM 8265 Nways ATM Campus Switch ▐1▌ Needs additional 16 MB of memory. ▐2▌ Includes support for 0C-12 module, port mirroring, WAN counters and counters per connection. ▐3▌ Additional memory is needed when more connections are required for the base IISP code or when the enhanced PNNI code is run. Please refer to Table 19 on page 185. A-CPSW modules are installed in slots 9-10 and 11-12 of the 8265 chassis. Two A-CPSW modules can be installed for redundancy purposes. If two A-CPSWs are installed, one will be the primary and the other will be the secondary. When two A-CPSW modules are installed in an 8265 chassis a serial interface on the backplane of the chassis connects them together. This interface is used by the two control points for the following: • Update each other automatically with any configuration changes • For the secondary to monitor the condition of the primary for redundancy purposes The primary A-CPSW initiates a mirroring of its configuration to the secondary A-CPSW across the serial interface. A table is sent from the primary to the secondary with the following information:
• Terminal community names • Device inventory • Logical links/static routes or VPC • Module/port configurations • PVCs • End System Identifiers (ESI) • LECS configurations The primary A-CPSW polls the secondary A-CPSW every second to determine whether the secondary module is correctly configured, in order for it to take over in the event of a primary A-CPSW failure. The secondary receives the poll from the primary and returns a table correlator to the primary. This correlator is used by the primary to determine the current level of the secondary′s table. If the correlator indicates that the information is not current, then the primary will send a copy of the current table to the secondary. Periodic requests for the secondary to make self-diagnostic tests are issued by the primary. This ensures that the IBM 8265 ATM switch always has an operational backup A-CPSW. Note Event though the serial interface connection between the control points is over the backplane, it is not an ATM interface. The 8265 ensures that the mirroring information exchanged between the two control points has a lower priority than ATM cells sent over the ATM backplane. This ensures that ATM signalling is not impacted by A-CPSW traffic mirroring. Watchdogs are present in the primary A-CPSW. These watchdogs allow for the automatic reboot of the secondary control point in the case of unplanned outages. 2.2.3 Monitoring of ATM Media Modules The control point module also monitors all other media modules installed in the 8265. The A-CPSW polls the media modules every second to ensure operability. If the A-CPSW is unsuccessful after three polls in obtaining a response from a media module, the unresponding module is reset by the A-CPSW, thereby triggering the module operations to restart. At the time of resetting all active connections will be released by the backup A-CPSW and switched connections will be reestablished by the adapters of the endstations. Permanent connections will be automatically reestablished by the IBM 8265 primary A-CPSW. The A-CPSW also performs the function of chassis management for the 8265. Therefore, when configuring an 8265, only a controller module and not the advanced DMM/controller module should be used. The reason for this is that the DMM subset exists within the A-CPSW. This component of the A-CPSW manages and controls the following areas: • Configuration of modules and port settings • Out-of-band and in-band downloading of code Chapter 2. IBM 8265 Modules 17
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Page 16 and 17: 1.2.2 Cooling Subsystem 2 IBM 8265
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3.5 Enabling and Disabling ATM Medi
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3.6.1 Security 68 IBM 8265 Nways AT
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The Autolearn function allows the 8
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3.8.1.1 Point-to-Point Connections
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3.8.2 Permanent Connections (PVP/PV
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Figure 52. VP Tunneling 76 IBM 8265
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Figure 53. Signalling between Two 4
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Figure 54. Crankback of Calls in an
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Figure 56. High Availability on the
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3.15 Traffic Management This sectio
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The CBR/VBR and ABR queues are prov
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Figure 59. Traffic Shaping on the 8
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90 IBM 8265 Nways ATM Campus Switch
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Figure 60. ATM Address Assignment i
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− Expansion unit • RS/6000 (ARP
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• VOID • AUTO 96 IBM 8265 Nways
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8265>set pnni node_0 peer_group_id:
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8265>set pnni path_selection abr: o
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8265>show pnni ptse self_originated
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8265>ping 9.100.94.38 Starting ping
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Note 120 IBM 8265 Nways ATM Campus
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8265>show device 8265>ATM Control P
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4.4.1 Network Environment 124 IBM 8
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• Hub_2 information 126 IBM 8265
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• Hub_1 information and setting
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4.4.2 Network setting verification
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8265>show pnni peer_group_members -
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This group has configuration and st
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Information can be found in this gr
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• Managing • Monitoring • Fau
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5.5 LAN Emulation Manager 5.6 Fault
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5.8 ATM View Panel • Performance
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• Star • Tabular 5.8.1 Front Pa
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5.8.2 PNNI View Various displays of
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5.10 Using FaultBuster 156 IBM 8265
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5.11 Statistical Displays Figure 74
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Figure 76. Statistics Display Panel
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For example, you discovered that a
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Here we summarize the steps to help
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6.6 Gathering Information by Using
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Figure 79. ATM Interface Submap in
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Figure 81. IBM 8265 S17 Capabilitie
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• Familiar ease of use • Robust
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7.5.1 Hardware Redundancy The 8265
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7.7 Traffic Management 7.8 Network
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Figure 86. Control Point Structure
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Table 18 (Page 2 of 2). Hardware Pe
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7.11 Network Performance Factors Ma
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Figure 87. Logical Network Design 1
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Table 20. Relationship between MTU
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The associate features and part num
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Figure 89. 155 Mbps Module Fiber Da
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Table 25 (Page 2 of 2). Specificati
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Figure 93. WAN Module OC3/STM-1 Dau
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Table 39. Specifications: ATM Backp
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B.2 Other Cabling Considerations B.
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Table 47 (Page 2 of 5). Cause Codes
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Table 47 (Page 4 of 5). Cause Codes
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C.2 Maintenance Codes Valid on 8265
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− 8273 Nways Ethernet RouteSwitch
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contract if required. Also, to redu
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Yes. Are SVCs and PVCs concurrently
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F.4 Performance Information 232 IBM
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How Customers Can Get ITSO Redbooks
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ER External Reachability ERM Explic
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SDU Service Data Unit SEAL Simple a
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IP address 58 IR 105 L line attachm
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IBM 8265 Nways ATM Campus Switch SG
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