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Availability: In Stock
Cisco Catalyst 3750G-48TS-48 Ethernet 10/100/1000 ports and four SFP uplinks
The Cisco Catalyst 3750 Series Switches are innovative switches that improve LAN operating efficiency by combining industry-leading ease of use and high resiliency for stackable switches. This product series features Cisco StackWise technology, a 32-Gbps stack interconnect that allows customers to build a unified, highly resilient switching system, one switch at a time.
Ease of Use and Deployment
- Autoconfiguration of new stack units eliminates reconfiguration.
- Dynamic Host Configuration Protocol (DHCP) autoconfiguration of multiple switches through a boot server eases switch deployment.
- Automatic Cisco IOS Software version checking and updating help ensure that all stack members have the same software version.
- Automatic QoS (AutoQoS) simplifies QoS configuration in voice over IP (VoIP) networks by issuing interface and global switch commands to detect Cisco IP phones, classify traffic, and help enable egress queue configuration.
- Master configuration management helps ensure that all switches are automatically upgraded when the master switch receives a new software version.
- Autosensing on each non-SFP port detects the speed of the attached device and automatically configures the port for 10-, 100-, or 1000-Mbps operation, easing switch deployment in mixed 10, 100, and 1000BASE-T environments.
- Autonegotiating on all ports automatically selects half- or full-duplex transmission mode to optimize bandwidth.
- Dynamic Trunking Protocol (DTP) facilitates dynamic trunk configuration across all switch ports.
- Port Aggregation Protocol (PAgP) automates the creation of Cisco Fast EtherChannel groups or Gigabit EtherChannel groups to link to another switch, router, or server.
- Link Aggregation Control Protocol (LACP) allows the creation of Ethernet channeling with devices that conform to IEEE 802.3ad. This feature is similar to Cisco EtherChannel technology and PAgP.
- DHCP Relay allows a DHCP relay agent to broadcast DHCP requests to the network DHCP server.
- IEEE 802.3z-compliant 1000BASE-SX, 1000BASE-LX/LH, 1000BASE-ZX, 1000BASE-T, and CWDM physical-interface support through a field-replaceable SFP module provides unprecedented flexibility in switch deployment.
- There is a default configuration to help ensure that the switch can be quickly connected to the network and can pass traffic with minimal user intervention. This default configuration exists even if there is no configuration stored in Flash memory.
- Automatic media-dependent interface crossover (MDIX) automatically adjusts transmit and receive pairs if an incorrect cable type (crossover or straight-through) is installed.
Interfaces/Ports
- Number of Ports: 48
- Gigabit Ethernet Port: Yes
- Interfaces/Ports: 48 x RJ-45 10/100/1000Base-T LAN. 1 x RJ-45 Console Management
Media And Perfomance
- Category Connectivity Media:3 UTP 10Base-T
- Category 4 UTP 10Base-T
- Category 5 UTP 10/100/1000Base-T
- 64Gbps Switching Fabric
- 38.7Mpps Stack Forwarding Rate For 64-byte Packet
- 32Gbps Stacking Bandwidth
I/O Expansions
- Number of Expansion Slots: 4
- Expansion Slots: (4 Total) SFP (mini-GBIC)
- Modules: Not Included
Network & Communication
- Flow Control: IEEE 802.3x (Full-duplex)
- Layer Support: 2, 3, 4.
- Number of Stacks: 9
- Address Table: 12 K MAC Address
Management & Protocols
Management:
- Telnet
- SNMP v1, v2c, and v3
- 4000 VLAN IDs are supported
- SPAN works across all the ports in a stack
- Cisco Works for network-wide management
- Cisco Network Assistant Software
- Cisco Cluster Management Suite (CMS) Software
- Command-line interface (CLI) for detailed configuration
- Web-based tool for quick configuration based on pre-set templates
- Remote Switch Port Analyzer (RSPAN) allows administrators to remotely monitor ports
- Up to 1005 VLANs per switch or stack and up to 128 Spanning-Tree instances per switch are supported.
- Embedded Remote Monitoring (RMON) software agent supports 4 RMON groups (history, statistics, alarms, and events)
Protocols:
- DHCP
- DTP
- PAgP
- LACP
- RSTP
- PVRST+
- HSRP
- RIP v1.0
- RIP v2.0
- ARP
- MSTP
- VTP
- IGMP
- TCP/IP
- CGMP
- CDPv1
- CDPv2
- TFTP
- NTP
- STP
- PVST+
- RADIUS
- TACACS+
- SNMP
- Telnet
- PIM
Memory
- Standard Memory: 128 MB
- Memory Technology: DRAM
- Flash Memory: 32 MB
Security Features:
- RADIUS
- TACACS+
- Port-based ACLs (PACLs)
- Secure Shell (SSH) Protocol
- Spanning Tree Root Guard (STRG)
- Cisco CMS Software security wizards
- 1000 access control entries (ACEs) are supported
- IEEE 802.1x allows dynamic, port-based security, providing user authentication
- Port-based ACLs for Layer 2 interfaces allow security policies to be applied on individual switch ports.
- IEEE 802.1x with an ACL assignment allows for specific identity-based security policies regardless of where the user is connected.
Physical Characteristics | 
