Cabletron Systems 6000 - Manual (Page 18)

Chapter 1: Introduction
1-6 6E128-26, 6E138-25, 6E129-26 and 6E139-25 User’s Guide
1.3.8 Runtime IP Address Discovery
This feature enables the modules to automatically accept an IP address
from a BootP server on the network into NVRAM without requiring a
user to enter an IP address through Local Management.
When the modules are connected to the network and powered up,
Runtime IP Address Discovery (RAD) checks the modules for an IP
address. If one has not yet been assigned (module and 6C105 chassis IP
address set to 0.0.0.0), RAD checks to see if any of the module interfaces
have a link. If so, RAD sends out Reverse Address Resolution Protocol
(RARP) and BootP requests to obtain an IP address from a BootP or
RARP server on the network.
The RAD requests start out at an interval of 1 second. The interval then
doubles after every transmission until an interval of 300 seconds is
reached. At this point, the interval remains at 300 seconds. The RAD
requests continue until an IP address is received from a BootP or RARP
server, or an IP address is entered using Local Management.
1.4 LOCAL MANAGEMENT FEATURES
Local Management provides the tools that allow management of the
6E12X-26 and 6E13X-25, the Fast Ethernet Interface Modules, all
HSIMs, and the 6C105 chassis. Local Management for the 6E12X-26 and
6E13X-25 provides the features detailed in Sections 1.4.1 through 1.4.6.
1.4.1 Distributed Chassis Management
From a management perspective, the 6C105 SmartSwitch 6000 chassis
can be viewed as a single entity with a single IP address. Its management
functions are distributed to all modules. This means a single module in
the chassis, such as the 6E12X-26 and 6E13X-25, can be used to manage
the entire chassis, and any other attached module through Local
Management, SNMP, or Telnet applications.