Full Duplex Switched Ethernet; Smarttrunk - Cabletron Systems DLE52-MA User Manual

Chapter 1 Overview
address. If one has not yet been assigned (module and the DLM6C-AA
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
RARP or BootP server on the network.
The RAD requests start at an interval of one per 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 RARP or BootP
server, or an IP address is entered using Local Management.
1.4

FULL DUPLEX SWITCHED ETHERNET

Each switched Fast Ethernet port on the DLE02-MA and the DLE52-MA
supports 10/100 Mbps operation and can be configured to operate in Full
Duplex Switched Ethernet (FDSE) mode. FDSE allows each port to
provide up to 200 Mbps of bandwidth.
1.5

SmartTrunk

SmartTrunk, also referred to as SmartTrunking, is the terminology used to
describe load balancing or load sharing. The SmartTrunk application uses
a multicast proprietary packet. During initialization, SmartTrunk registers
with the host interface to receive all unknown destinations and
SmartTrunk packets. When SmartTrunk is enabled, it starts sending
packets every two seconds to each SmartTrunk port that is linked and
enabled in order to determine the network topology. While SmartTrunk
performs this function, data is temporarily blocked on new SmartTrunk
ports and any port that becomes newly linked. If SmartTrunk determines
that there are network loops, it temporarily disables the looped ports via
Spanning Tree, then it begins to forward data.
Refer to the list of supported features in the release notes to
determine if SmartTrunk is supported. For information on
SmartTrunk configuration, refer to the SmartTrunk User's
Guide .
1-4 DLE02-MA/DLE52-MA User's Guide