Waters Network Systems
User’s Manual
Page 6
PSX/ES1008 Models
while simultaneously providing the 100Mbps bandwidth required for multimedia
applications. All RJ45 ports support
Auto MDI/MDIX
.
Ethernet switching technology dramatically boosted the total bandwidth of a network,
eliminated congestion problems inherent with the carrier sense multiple access with
the collision detection (CSMA/CD) protocol and greatly reduced unnecessary
transmissions.
This revolutionized networking. First, by allowing two-way, simultaneous
transmissions over the same port (full-duplex), bandwidth was essentially doubled.
Second, by reducing the collision domain to a single switch-port, the need for carrier
sensing was eliminated. Third, by using the store-and-forward technology’s approach
of inspecting each packet to intercept corrupt or redundant data, switching eliminated
unnecessary transmissions that slow down network traffic.
Auto-negotiation regulates the speed and duplex of each port, based on the capability
of both devices. Flow-control allows transmission from a 100Mbps node to a
10Mbps node without loss of data. Auto-negotiation and flow-control may have to be
disabled for some networking operations that involve legacy equipment. Disabling the
auto-negotiation is accomplished by hard setting the speed or duplex mode of a port.
3.1 Hardware
Features
Conforms to IEEE 802.3, 802.3u, and 802.3x Ethernet Standards
Auto-sensing 10/100Base-TX RJ45 port ports
Automatic MDI/MDIX crossover for each 10/100Base-TX port
Nine-port model includes one fixed 100Base-FX port (SC, ST or MTRJ
connector)
Dip switch for full and half duplex mode
Dip switch for VLAN setting
Store-and-forward switching architecture
Automatic address learning, address migration
2K-entry MAC address table
768kb memory buffer sharing
Performs non-blocking full wire speed
