| Appendix F |
|
Appendix F
|
Troubleshooting the NISCA Protocol
|
|
F.1
|
How NISCA Fits into the SCA
|
|
F.1.1
|
SCA Protocols
|
|
F.1.2
|
Paths Used for Communication
|
|
F.1.3
|
PEDRIVER
|
|
F.2
|
Addressing LAN Communication Problems
|
|
F.2.1
|
Symptoms
|
|
F.2.2
|
Traffic Control
|
|
F.2.3
|
Excessive Packet Losses on LAN Paths
|
|
F.2.4
|
Preliminary Network Diagnosis
|
|
F.2.5
|
Tracing Intermittent Errors
|
|
F.2.6
|
Checking System Parameters
|
|
F.2.7
|
Channel Timeouts
|
|
F.3
|
Using SDA to Monitor LAN Communications
|
|
F.3.1
|
Isolating Problem Areas
|
|
F.3.2
|
SDA Command SHOW PORT
|
|
F.3.3
|
Monitoring Virtual Circuits
|
|
F.3.4
|
Monitoring PEDRIVER Buses
|
|
F.3.5
|
Monitoring LAN Adapters
|
|
F.4
|
Troubleshooting NISCA Communications
|
|
F.4.1
|
Areas of Trouble
|
|
F.5
|
Channel Formation
|
|
F.5.1
|
How Channels Are Formed
|
|
F.5.2
|
Techniques for Troubleshooting
|
|
F.6
|
Retransmission Problems
|
|
F.6.1
|
Why Retransmissions Occur
|
|
F.6.2
|
Techniques for Troubleshooting
|
|
F.7
|
Understanding NISCA Datagrams
|
|
F.7.1
|
Packet Format
|
|
F.7.2
|
LAN Headers
|
|
F.7.3
|
Ethernet Header
|
|
F.7.4
|
FDDI Header
|
|
F.7.5
|
Datagram Exchange (DX) Header
|
|
F.7.6
|
Channel Control (CC) Header
|
|
F.7.7
|
Transport (TR) Header
|
|
F.8
|
Using a LAN Protocol Analysis Program
|
|
F.8.1
|
Single or Multiple LAN Segments
|
|
F.8.2
|
Multiple LAN Segments
|
|
F.9
|
Data Isolation Techniques
|
|
F.9.1
|
All OpenVMS Cluster Traffic
|
|
F.9.2
|
Specific OpenVMS Cluster Traffic
|
|
F.9.3
|
Virtual Circuit (Node-to-Node) Traffic
|
|
F.9.4
|
Channel (LAN Adapter--to--LAN Adapter) Traffic
|
|
F.9.5
|
Channel Control Traffic
|
|
F.9.6
|
Transport Data
|
|
F.10
|
Setting Up an HP 4972A LAN Protocol Analyzer
|
|
F.10.1
|
Analyzing Channel Formation Problems
|
|
F.10.2
|
Analyzing Retransmission Problems
|
|
F.11
|
Filters
|
|
F.11.1
|
Capturing All LAN Retransmissions for a Specific OpenVMS Cluster
|
|
F.11.2
|
Capturing All LAN Packets for a Specific OpenVMS Cluster
|
|
F.11.3
|
Setting Up the Distributed Enable Filter
|
|
F.11.4
|
Setting Up the Distributed Trigger Filter
|
|
F.12
|
Messages
|
|
F.12.1
|
Distributed Enable Message
|
|
F.12.2
|
Distributed Trigger Message
|
|
F.13
|
Programs That Capture Retransmission Errors
|
|
F.13.1
|
Starter Program
|
|
F.13.2
|
Partner Program
|
|
F.13.3
|
Scribe Program
|
| Appendix G |
|
Appendix G
|
NISCA Transport Protocol Channel Selection and Congestion Control
|
|
G.1
|
NISCA Transmit Channel Selection
|
|
G.1.1
|
Multiple-Channel Load Distribution on OpenVMS Version 7.3 (Alpha and VAX) or Later
|
|
G.1.1.1
|
Equivalent Channel Set Selection
|
|
G.1.1.2
|
Local and Remote LAN Adapter Load Distribution
|
|
G.1.2
|
Preferred Channel (OpenVMS Version 7.2 and Earlier)
|
|
G.2
|
NISCA Congestion Control
|
|
G.2.1
|
Congestion Caused by Retransmission
|
|
G.2.1.1
|
OpenVMS VAX Version 6.0 or OpenVMS AXP Version 1.5, or Later
|
|
G.2.1.2
|
VMS Version 5.5 or Earlier
|
|
G.2.2
|
HELLO Multicast Datagrams
|
| Index |
| Index |
| Examples |
| 7-1 |
Sample Commands for Creating OpenVMS Cluster Queues |
| 7-2 |
Common Procedure to Start OpenVMS Cluster Queues |
| 8-1 |
Sample Interactive CLUSTER_CONFIG.COM Session to Add a Computer as a Boot Server |
| 8-2 |
Sample Interactive CLUSTER_CONFIG.COM Session to Add a Computer Running DECnet--Plus |
| 8-3 |
Sample Interactive CLUSTER_CONFIG.COM Session to Add a VAX Satellite with Local Page and Swap Files |
| 8-4 |
Sample Interactive CLUSTER_CONFIG.COM Session to Remove a Satellite with Local Page and Swap Files |
| 8-5 |
Sample Interactive CLUSTER_CONFIG.COM Session to Enable the Local Computer as a Disk Server |
| 8-6 |
Sample Interactive CLUSTER_CONFIG.COM Session to Change the Local Computer's ALLOCLASS Value |
| 8-7 |
Sample Interactive CLUSTER_CONFIG.COM Session to Enable the Local Computer as a Boot Server |
| 8-8 |
Sample Interactive CLUSTER_CONFIG.COM Session to Change a Satellite's Hardware Address |
| 8-9 |
Sample Interactive CLUSTER_CONFIG.COM Session to Enable the Local Computer as a Tape Server |
| 8-10 |
Sample Interactive CLUSTER_CONFIG.COM Session to Change the Local Computer's TAPE_ALLOCLASS Value |
| 8-11 |
Sample Interactive CLUSTER_CONFIG.COM Session to Convert a Standalone Computer to a Cluster Boot Server |
| 8-12 |
Sample Interactive CLUSTER_CONFIG.COM CREATE Session |
| 10-1 |
Sample NETNODE_UPDATE.COM File |
| 10-2 |
Defining an Alpha Satellite in a VAX Boot Node |
| 10-3 |
Defining a VAX Satellite in an Alpha Boot Node |
| 10-4 |
Sample SYSMAN Session to Change the Cluster Password |
| C-1 |
Crossed Cables: Configuration 1 |
| C-2 |
Crossed Cables: Configuration 2 |
| C-3 |
Crossed Cables: Configuration 3 |
| C-4 |
Crossed Cables: Configuration 4 |
| C-5 |
Crossed Cables: Configuration 5 |
| C-6 |
CI Device-Attention Entries |
| C-7 |
LAN Device-Attention Entry |
| C-8 |
CI Port Logged-Message Entry |
| D-1 |
Portion of LAVC$FAILURE_ANALYSIS.MAR to Edit |
| F-1 |
SDA Command SHOW PORT Display |
| F-2 |
SDA Command SHOW PORT/VC Display |
| F-3 |
SDA Command SHOW PORT/BUS Display |
| F-4 |
SDA Command SHOW LAN/COUNTERS Display |
