3com 3800 ユーザーズマニュアル

ページ / 182
Network Configuration Example
1-5
Priority Access Control Enabled (PACE)
The Switch recognizes the PACE bit set by 3Com Etherlink
®
 adapters 
and other devices supporting PACE. When enabled, traffic with these 
bits receives priority service from the Switch.
Spanning Tree Protocol (STP)
The Switch 3800 supports the IEEE 802.1d Spanning Tree Protocol 
(STP),
 which is a bridge-based mechanism for providing fault tolerance 
on networks. STP allows you to implement parallel paths for network 
traffic, and ensure the following:
Redundant paths are disabled when the main paths are operational.
Redundant paths are enabled if the main traffic paths fail.
For more information on STP, refer to Chapter 7.
IP Unicast Routing
The Switch 3800 can route IP traffic between the VLANs configured as 
virtual router interfaces. Both dynamic and static IP routes are 
maintained in the routing table. RIP version 1 and RIP version 2 are 
supported.
Network 
Configuration 
Example
This section describes where to position the Switch 3800 within your 
network. One common use of the Switch 3800 is on a Gigabit Ethernet 
backbone. Figure 1-2 shows an example of a Gigabit Ethernet 
backbone within a building. 
SW3800.BK  Page 5  Tuesday, May 5, 1998  5:20 PM