Using The Bridge Outer In; Network; Overview; Using Ethernet Lan Ports - 3Com NETBuilder SI Using Manual

2

Overview

Using Ethernet LAN
Ports
U
SING THE
Y N
OUR ETWORK
This chapter gives an overview of SuperStack II NETBuilder SI
bridge/routers and describes how they fit in your network. It also
describes the software features of the bridge/router.
SuperStack II bridge/routers maintain connectivity among small, midsize,
and large branch offices and the corporate LAN.
SuperStack II NETBuilder SI bridge/routers come with two Ethernet ports,
two or four serial ports, and one of the following WAN ports: ISDN S/T
(models 43x and model 53x), ISDN U (models 44x and 54x), 56/64 Kbps
Carrier Service Unit/Data Service Unit (CSU/DSU) (models 45x and 55x), or
T1/FT1 Telco port (models 46x and 56x). You can change any model 4xx
bridge/router to another model 4xx, or any model 5xx to another model
5xx, by installing, removing, or replacing an interface module.
All models can be upgraded to any software package. All models have
dual-image software support for upgrading and backup.
The SuperStack II NETBuilder SI bridge/router provides connection to two
Ethernet LANs using either 10BASE-T or 100BASE-TX Ethernet. Boundary
router models have one port disabled. If you upgrade to full router
software, the second port will be functional.
Leaf node Boundary Routing
bridge/routers.
B /R
RIDGE
®
is not available on the model 5xx
OUTER IN