Refurbished: CISCO Catalyst 3750 WS-C3750G-12S-S-RF Switch

For midsized organizations and enterprise branch offices, the Cisco Catalyst C3750G-12S-S eases deployment of converged applications and adapts to changing business needs by providing configuration flexibility, support for converged network patterns, and automation of intelligent network services configurations. In addition, the Cisco Catalyst C3750G-12S-S is optimized for high-density Gigabit Ethernet deployment that meet access, aggregation, or small-network backbone-connectivity requirements. Learn more about the Cisco Systems, Inc. WS-C3750G-12S-S-RF Model Brand CISCO Series Catalyst 3750 Model WS-C3750G-12S-S-RF Format & Standards Standards IEEE 802.1s IEEE 802.1w IEEE 802.1x IEEE 802.3ad IEEE 802.3af IEEE 802.3x full duplex on 10BASE-T, 100BASE-TX, and 1000BASE-T ports IEEE 802.1D Spanning Tree Protocol IEEE 802.1p CoS classification IEEE 802.1Q VLAN IEEE 802.3 10BASE-T IEEE 802.3u 100BASE-T IEEE 802.3ab 1000BASE-T IEEE 802.3z 1000BASE-X Ports & Interface Primary Ports 12 SFP-based Gigabit Ethernet ports Primary Port Speed 10/100/1000Mbps Data Transmission MAC Address Table Up to 12,000 VLAN Support Yes Jumbo Frames Yes Buffer Memory 128 MB DRAM and 16 MB Flash memory Details Security IEEE 802.1x allows dynamic, port-based security, providing user authentication. IEEE 802.1x with VLAN assignment allows a dynamic VLAN assignment for a specific user regardless of where the user is connected. IEEE 802.1x with voice VLAN permits an IP phone to access the voice VLAN irrespective of the authorized or unauthorized state of the port. IEEE 802.1x and port security are provided to authenticate the port and manage network access for all MAC addresses, including that of the client. IEEE 802.1x with an ACL assignment allows for specific identity-based security policies regardless of where the user is connected. IEEE 802.1x with guest VLAN allows guests without 802.1x clients to have limited network access on the guest VLAN. CISCO security VLAN ACLs on all VLANs prevent unauthorized data flows from being bridged within VLANs. CISCO standard and extended IP security router ACLs define security policies on routed interfaces for control-plane and data-plane traffic. Port-based ACLs for Layer 2 interfaces allow security policies to be applied on individual switch ports. Secure Shell (SSH) Protocol, Kerberos, and Simple Network Management Protocol Version 3 (SNMPv3) provide network security by encrypting administrator traffic during Telnet and SNMP sessions. SSH Protocol, Kerberos, and the cryptographic version of SNMPv3 require a special cryptographic software image because of U.S. export restrictions. Private VLAN Edge provides security and isolation between switch ports, which helps ensure that users cannot snoop on other users' traffic. Dynamic ARP Inspection helps ensure user integrity by preventing malicious users from exploiting the insecure nature of the ARP protocol. DHCP Snooping prevents malicious users from spoofing a DHCP server and sending out bogus addresses. This feature is used by other primary security features to prevent a number of other attacks such as ARP poisoning. Cabling 10BASE-T ports: RJ-45 connectors, 2-pair Category 3 (Cat-3), 4, or 5 unshielded twisted-pair (UTP) cabling 100BASE-TX ports: RJ-45 connectors, 2-pair Cat-5 UTP cabling 100BASE-FX ports: MT-RJ connectors, 50/125 or 62.5/125 micron multimode fiber 1000BASE-T ports: RJ-45 connectors, 2-pair Cat-5 UTP cabling 1000BASE-T SFP-based ports: RJ-45 connectors, 2-pair Cat-5 UTP cabling 1000BASE-SX, -LX/LH, -ZX, and CWDM SFP-based ports: LC fiber connectors (single-mode, or multimode fiber) 10GBASE-ER XENPAK-based port (single-mode) 10GBASE-LR XENPAK-based port (single-mode) CISCO StackWise stacking ports: copper-based CISCO StackWise cabling Management console port: RJ-45-to-DB9 cable for PC connections LEDs Per-port status LEDs: link integrity, disabled, activity, speed, and full-duplex indications System-status LEDs: system, RPS, and bandwidth-utilization indications Power Supply Power AC Input Voltage and Frequency: 100-240 VAC, 3.0-1.5A, 50-60 Hz DC Input Voltages: +12V at 13A Dimensions & Weight Dimensions 17.5" x 12.8" x 1.7" Weight 10 lbs. Environmental Temperature 0°C to 45°C (32°F to 113°F) Humidity 10 to 85% (noncondensing) Features Features 32 Gbps, high-speed stacking bus Innovative stacking technology 1 RU stackable multilayer switch Enterprise-class intelligent services delivered to the network edge IP Base Image installed Basic RIP and static routing, upgradable to full dynamic IP routing Ease of Use and Deployment Superior Redundancy for Fault Backup High-Performance IP Routing Integrated CISCO IOS Software Features for Bandwidth Optimization Scalable Stacking Advanced QoS Granular Rate Limiting Disclaimer Disclaimer For most updated manufacturer warranty, please go to www.cisco.com. Registration Phone 1-800-Go-Cisco Additional Information Customer Reviews of the Cisco Systems, Inc. WS-C3750G-12S-S-RF