User's Manual
Table Of Contents
- Chapter 1 Introduction
- Features and Benefits
- Transparent Ethernet Bridging with Advanced Filtering for Security and Network Reliability
- IP Routing with Advanced Filtering for Security
- SNMP Management
- SNMP Features
- SNMP Management
- IP-Router Features
- Encryption Features (Add-on Option)
- Wireless Multipoint Protocol
- Additional Functionality for SPEEDLAN 4100 & 4200
- Features
- Chapter 2 Quick Start
- System Description
- Package Contents
- Installation Steps
- Installation Diagram
- Polarizations on a Grid Antenna
- Chapter 3 Hardware
- Upgrading the Firmware
- Chapter 4 Overview of Configurator
- Installation and Setup
- Toolbar and Menus
- Chapter 5 Configuring SPEEDLAN 4100 & 4200
- General Setup
- Interface & Advanced Interface Setup
- The Setup Buttons
- Chapter 6 Bridging Setup
- Bridge Setup
- Chapter 7 Setting Up the IP Addresses (IP Host Setup)
- Part I - Quick Overview of IP Addressing
- Part II - Setting Up the IP Address
- Chapter 8 IP-Router Setup
- IP Routing Setup
- Chapter 9 SNMP Setup
- SNMP Setup
- Chapter 10 System Access Setup
- System Access Setup
- Chapter 11 SNMP Monitoring
- Remote Statistics
- Interface Monitor
- Ethernet-like Interface Monitor
- Campus PRC Station Entries
- 11Mb RF Interface
- SNMP Monitor
- IP Monitor
- IP/TCP/UDP Monitor
- ICMP Monitor
- Chapter 12 Tables
- System Information
- Bridge Learn Table
- IP ARP Table
- IP Route Table
- IP/TCP Connection Table
- IP/UDP Listener Table
- Local IP-Address Table
- Chapter 13 Analyzing Wireless Equipment
- Select Another Device
- Analysis Polling Interval
- Wireless Link Test
- Antenna Alignment
- Glossary for Standard Data Communications
- Glossary for Standard Data Communications
- Appendix Protocols & Ethernet Addresses
- Common Ethernet Protocols
- Common Ethernet Vendor Addresses
- Common Ethernet Multicast Addresses
- Common Ethernet Broadcast Addresses
SPEEDLAN 4100 & 4200 Installation and Operation User Guide
11-20 SNMP Monitoring
IP/TCP/UDP Monitor
The brouter keeps the standard TCP/UDP statistics on IP protocols as indicated below.
TCP
• Rto Algorithm
The algorithm used to determine the timeout value used for retransmitting unacknowledged
octets, which can be: "other" - none of the following; "constant" - a constant rto; "rsre" - MIL-
STD-1778, Appendix B; "vanj" - Van Jacobson's algorithm.
• Rto Minimum
The minimum value permitted by a TCP implementation for the retransmission timeout,
measured in milliseconds. More refined semantics for objects of this type depend upon the
algorithm used to determine the retransmission timeout. In particular, when the timeout
algorithm is "rsre", an object of this type has the semantics of the LBOUND quality
described in RFC 793.
• Rto Maximum
The maximum value permitted by a TCP implementation for the retransmission timeout,
measured in milliseconds. More refined semantics for objects of this type depend upon the