3Com 10002211 Revision 8.2.0?, What’s New at, corrections that are implemented at this release

14COREBUILDER 6000 EXTENDED SWITCHING SOFTWARE REVISION 8.2.3

What’s New at	This section describes the new features, software enhancements, and
Revision 8.2.0?	corrections that are implemented at this release.

New Features The following features have been added at this release.

Fast Ethernet Switching Module (FESM) Support

The Fast Ethernet Switching Module (FESM) provides high-function switching of traffic among Fast Ethernet workstations and subnetworks over the multigigabit high-speed interconnect (HSI) bus of the CoreBuilder 6000 system.

The FESM module has two configurations:

■Eight 100BASE-TX ports that use RJ-45 connectors

These ports support connections to unshielded twisted pair (UTP) Category 5 media.

■Six 100BASE-FX ports that use SC connectors

These ports support connections to multimode fiber media.

The FESM automatically learns the MAC-layer addresses of workstations on attached subnetworks and forwards packets to their appropriate destinations. When used with CoreBuilder Extended Switching software, the FESM also supports routing between attached subnetworks. In addition, the FESM fully complies with the IEEE 802.1d bridging standard.

The FESM requires CoreBuilder 6000 software revision 8.2.0 or greater. This software, in turn, requires that you install one of the following LANswitching Management Module Plus (LMM+) versions in system slot 1:

■Revision 1.21 or greater of the revision 1 LMM+

■Revision 2.12 or greater of the revision 2 LMM+

CAUTION: If you attempt to run CoreBuilder system software 8.2.0 or greater on an earlier revision of the LMM+, the system fails to reboot when you turn it on.