Protocol
CSMA/CD
Data Transfer Rates

• Ethernet:

10Mbps (half duplex)
20Mbps (full duplex)

• Fast Ethernet:

100Mbps (half duplex)
200Mbps (full duplex)

• Gigabit Ethernet:

2000Mbps (full duplex)
Basic Configuration

• 24 auto-sensing 10/100Mbps ports (built-in)
• 1 open slot

Switch Fabric

• 8.8 Gbps
• Power (per device)
• Console (per device)
• 10/100Mbps speed (per port)
• Link/Act (per port)

Built-in Ports Supported Functions

• IEEE 802.3 10BASE-T/802.3u 100BASE-TX standards
• Full/half duplex support with ANSI/IEEE 802.3 NWay auto-negotiation
• IEEE 802.3x Flow Control in full-duplex, back pressure in half-duplex
• MDI/MDIX auto-sensing for all twisted-pair ports
• Auto-correction of twisted-pair Rx reverse polarity
• 10BASE-T cables:
• UTP Cat. 3, 4, 5 (100 m max.)
• 100BASE-TX cables:
• UTP Cat. 5 (100 m max.)

DES-332GS Stack + GBIC Module

• 1 stacking port
• 1 GBIC slot (IEEE 802.3z/802.3ab standards)
• Stackable units: 8 switches per stack
• Stacking method: ring
• Full duplex support for GBIC slot
• IEEE 802.3x Flow Control (GBIC slot)
• Stacking cable: proprietary IEEE 1394 cable (provided)
• Network cables (GBIC slot): single-mode and multi-mode fiber
• LED report (per port): Link/Act (GBIC slot)

DES-132 10/100Mbps Fast Ethernet Module

• IEEE 802.3 10BASE-T/802.3u 100BASE-TX standards
• 2 10/100Mbps ports
• IEEE 802.3x Flow Control in full-duplex, back pressure in half-duplex
• Auto MDI/MDIX for each port

DES-131F/132F Fast Ethernet Fiber Module

• IEEE 802.3u 100BASE-FX standard
• 1/2 100Mbps fiber port(s) (SC connectors)
• Full duplex support
• IEEE 802.3x Flow Control
• Cables: 50, 62.5/125-micron multi-mode fiber (2 km max.)
• LED report (per port): Link/Act

DES-131FL/132FL Fast Ethernet Fiber Module

• IEEE 802.3u 100BASE-FX standard
• 1/2 100Mbps fiber port(s) (SC connectors)
• Full duplex support
• IEEE 802.3x Flow Control
• Cables: 9-micron single-mode fiber (15 km max.)
• LED report (per port): Link/Act

DES-132G Gigabit Fiber Module

• IEEE 802.3z 1000BASE-SX standard
• 2 Gigabit fiber ports (SC connectors)
• Full duplex support
• IEEE 802.3x Flow Control
• Cables: 50/125 micron multi-mode fiber (525 m max.), 62.5/125 micron
• multi-mode fiber (275 m max.)
• LED report (per port): Link/Act

DES-132GL Gigabit Fiber Module

• IEEE 802.3z 1000BASE-LX standard
• 2 Gigabit fiber ports (SC connectors)
• Full duplex support
• IEEE 802.3x Flow Control
• Cables: single-mode fiber (5 km max.)
• LED report (per port): Link/Act

DES-132T Gigabit Copper Module

• IEEE 802.3 10BASE-T/802.3u 100BASE-TX/IEEE 802.3ab 1000BASE-T
• standards
• 2 auto-sensing 10/100/1000Mbps ports
• Full/half duplex support with ANSI/IEEE 802.3 NWay auto-negotiation
• IEEE 802.3x Flow Control in full-duplex, back pressure in half-duplex
• 10BASE-T/100BASE-TX: full/half duplex
• 1000BASE-T: full duplex
• MDI/MDIX auto-sensing for all twisted-pair ports
• Auto-correction of twisted-pair Rx reverse polarity
• 10BASE-T cables:
• UTP Cat. 3, 4, 5 (100 m max.)
• 100BASE-TX/1000BASE-T cables:
• UTP Cat. 5/Cat. 5e (100 m max.)
• LED report (per port):
• 100/1000Mbps speed
• Link/Act

DES-132GB GBIC Module

• IEEE 802.3z/ab standards
• 2 GBIC slots for installation of Gigabit transceivers
• Full duplex support
• IEEE 802.3x Flow Control
• Cables: single-mode and multi-mode fiber, twisted-pair cable
• LED report (per port): Link/Act

IP Routing

• IP v4 support
• IP multi-netting
• Path MTU discovery
• IP Fragmentation support
• Routing protocols supported:

Static routing
RIP-1, RIP-2
OSPF v.2
VLAN

• IEEE 802.1Q Tagged VLAN
• Port-based VLAN
• Number of VLANs: 255 per device (max.)

Spanning Tree

• 802.1D Spanning Tree
• 802.1w Rapid Spanning Tree

Multicast

• IGMP v2
• IGMP Snooping
• DVMRP
• PIM-DM

Priority Queues (CoS)

• Standard: IEEE 802.1p
• Number of queues: 4

Traffic Classification (CoS)
Can be based on user-definable application types:

• TOS
• Diffserv (DSCP)
• Port-based
• MAC address
• IP address
• TCP/UCP port number

Access Control Security
Port security

802.1x user authentication

RADIUS client

• Multi-layer ACL (Access Control List) based on:

TOS
Diffserv (DSCP)
MAC address
IP address
User-definable applications