DATA SHEET CISCO CATALYST 3750 SERIES SWITCHES ® ® The Cisco Catalyst 3750 Series switches are innovative switches that improve LAN operating efficiency by combining industry-leading ease of use and the highest resiliency available for stackable switches. This product series represents the next generation in desktop switches, and 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. Figure 1.
PRODUCT OVERVIEW For midsized organizations and enterprise branch offices, the Cisco Catalyst 3750 Series eases deployment of converged applications and adapts to changing business needs by providing configuration flexibility, support for converged network patterns, and automation of intelligent networkservices configurations.
Return on Investment through Lower Operations Costs The automatic Cisco IOS Software version checking and loading of the global configuration parameters provide the first level of operational time saving. The second level is added during the event of an outage.
Standard PoE Support—Graceful Addition of IP Communications The Cisco Catalyst 3750 and 3750G PoE models support Cisco IP phones and Cisco Aironet® wireless LAN (WLAN) access points, as well as any IEEE 802.3af-compliant end device. The Catalyst 3750 and 3750G 24-port versions can support 24 simultaneous full-powered PoE ports at 15.4 watts (W) for maximum powered device support. The 48-port versions can deliver the necessary power to support 24 ports at 15.4W, 48 ports at 7.
Table 1. Features and Benefits Feature Benefit 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 helps ensure that all stack members have the same software version.
Feature Benefit • Per-VLAN Rapid Spanning Tree (PVRST+) allows rapid spanning-tree reconvergence on a per-VLAN spanning-tree basis, without requiring the implementation of spanning-tree instances. • Cisco Hot Standby Router Protocol (HSRP) is supported to create redundant, failsafe routing topologies. • Unidirectional Link Detection Protocol (UDLD) and Aggressive UDLD allow unidirectional links caused by incorrect fiber-optic wiring or port faults to be detected and disabled on fiber-optic interfaces.
Feature Benefit redundant design. • IEEE 802.1s Multiple Spanning Tree Protocol allows a spanning-tree instance per VLAN, for Layer 2 load sharing on redundant links. • Equal-cost routing facilitates Layer 3 load balancing and redundancy across the stack. EMI is required. • Local Proxy Address Resolution Protocol (ARP) works in conjunction with Private VLAN Edge to minimize broadcasts and maximize available bandwidth. • VLAN1 minimization allows VLAN1 to be disabled on any individual VLAN trunk link.
Feature Benefit Networkwide Security Features • IEEE 802.1x with VLAN assignment allows a dynamic VLAN assignment for a specific user regardless of • IEEE 802.1x allows dynamic, port-based security, providing user authentication. 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.
Feature Benefit • Trusted boundary provides the ability to trust the QoS priority settings if an IP phone is present and to disable the trust setting in the event that the IP phone is removed, thereby preventing a malicious user from overriding prioritization policies in the network. • Multilevel security on console access prevents unauthorized users from altering the switch configuration. • The user-selectable address-learning mode simplifies configuration and enhances security.
Feature Benefit • All 9 RMON groups are supported through a SPAN port, which permits traffic monitoring of a single port, a group of ports, or the entire stack from a single network analyzer or RMON probe. • Domain Name System (DNS) provides IP-address resolution with user-defined device names. • Trivial File Transfer Protocol (TFTP) reduces the cost of administering software upgrades by downloading from a centralized location.
Feature Benefit • Alarm notification provides automated e-mail notification of network errors and alarm thresholds. • Simple macros help enable advanced QoS features with one command instead of multiple commands in the Smartports configuration file. Easy Web Setup • Web-browser setup utility allows 1-click initialization for IP addresses and passwords.
Description Specification Catalyst 3750G-16TD) • Configurable maximum transmission unit (MTU) of up to 9000 bytes, with a maximum Ethernet frame size of 9018 bytes (jumbo frames) for bridging on Gigabit Ethernet ports, and up to 1546 bytes for bridging and routing on Fast Ethernet ports Connectors and 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 • 1000BASE-T ports: RJ-45
Description Specification • 1.73 x 17.5 x 14.9 in. (4.4 x 44.5 x 37.8 cm) (Cisco Catalyst 3750G-24TS-1U) • 1.73 x 17.5 x 14.9 in. (4.4 x 44.5 x 37.8 cm) (Cisco Catalyst 3750G-24PS) • 1.73 x 17.5 x 16.1 in. (4.4 x 44.5 x 40.9 cm) (Cisco Catalyst 3750G-48TS) • 1.73 x 17.5 x 16.1 in. (4.4 x 44.5 x 40.9 cm) (Cisco Catalyst 3750G-48PS) • 12.5 lb (5.7 kg) (Cisco Catalyst 3750G-24TS) Weight • 10.0 lb (4.6 kg) (Cisco Catalyst 3750G-24T, Catalyst 3750G-12S) • 9.1 lb (4.1 kg) (Cisco Catalyst 3750-48TS) • 8.
Description Specification • 166,408 hours (Cisco Catalyst 3750-48PS) • 209,170 hours (Cisco Catalyst 3750-24PS) • 184,422 hours (Cisco Catalyst 3750G-16TD) • 165,243 hours (Cisco Catalyst 3750G-48TS) • 141,005 hours (Cisco Catalyst 3750G-48PS) • 221,150 hours (Cisco Catalyst 3750G-24TS-1U) • 182,373 hours (Cisco Catalyst 3750G-24PS) Table 3 lists the power specifications for the Cisco Catalyst 3750 Series. Table 3.
Description Specification • +12V at 7.5A (Cisco Catalyst 3750-48PS and Catalyst 3750-24PS) • +12V at 10.5A (Cisco Catalyst 3750G-24TS-1U) • +12V at 17.5A (Cisco Catalyst 3750G-48TS) • +12V at 14A (Cisco Catalyst 3750G-48PS and Catalyst 3750G-24PS) Table 4 lists the management and standards support for the Cisco Catalyst 3750 Series. Table 4.
Description Specification • OLD-CISCO-CHASSIS-MIB • OLD-CISCO-FLASH-MIB • OLD-CISCO-INTERFACES-MIB • OLD-CISCO-IP-MIB • OLD-CISCO-SYS-MIB • OLD-CISCO-TCP-MIB • OLD-CISCO-TS-MIB • OSPF-MIB (RFC 1253) • PIM-MIB • RFC1213-MIB • RFC1253-MIB • RMON-MIB • RMON2-MIB • SNMP-FRAMEWORK-MIB • SNMP-MPD-MIB • SNMP-NOTIFICATION-MIB • SNMP-TARGET-MIB • SNMPv2-MIB • TCP-MIB • UDP-MIB Standards • IEEE 802.1s • IEEE 802.1w • IEEE 802.1x • IEEE 802.3ad • IEEE 802.
Table 5. Safety and Compliance Description Specification Safety Certifications • UL to UL 60950, Third Edition • C-UL to CAN/CSA C22.2 No.
ORDERING INFORMATION Table 7 lists the ordering information for the Cisco Catalyst 3750 Series. To place an order, visit the Cisco Ordering Home Page at http://www.cisco.com/en/US/ordering/or13/or8/order_customer_help_how_to_order_listing.html. Table 7. Ordering Information Part Number WS-C3750G-24TS-E Description • 24 Ethernet 10/100/1000 ports and 4 SFP-based Gigabit Ethernet ports • 32-Gbps, high-speed stacking bus • Innovative stacking technology • 1.
Part Number Description WS-C3750G-12S-S • 12 SFP-based Gigabit Ethernet ports • 32-Gbps, high-speed stacking bus • Innovative stacking technology • 1 rack unit (RU) stackable multilayer switch • Enterprise-class intelligent services delivered to the network edge • SMI installed • SMI provides basic RIP and static routing, upgradable to full dynamic IP routing WS-C3750-48PS-E • 48 Ethernet 10/100 ports with IEEE 802.
Part Number Description • Enterprise-class intelligent services delivered to the network edge • EMI installed • Full dynamic IP routing WS-C3750-24PS-S • 24 Ethernet 10/100 ports with IEEE 802.
Part Number Description WS-C3750G-24TS-E1U • 24 Ethernet 10/100/1000 ports and 4 SFP-based Gigabit Ethernet ports • 32-Gbps, high-speed stacking bus • Innovative stacking technology • 1-RU stackable, multilayer switch • Enterprise-class intelligent services delivered to the network edge • EMI installed • Full IP routing with BGPv4, EIGRP, OSPF, and PIM WS-C3750G-24TS-S1U • 24 Ethernet 10/100/1000 ports and 4 SFP-based Gigabit Ethernet ports • 32-Gbps, high-speed stacking bus • Innovative stacking techn
Part Number Description • Innovative stacking technology • 1-RU stackable, multilayer switch • Enterprise-class intelligent services delivered to the network edge • SMI installed • Basic RIP and static routing, upgradable to full dynamic IP routing • 48 Ethernet 10/100/1000 with IEEE 802.
Part Number Description GLC-LH-SM= • GE SFP, LC connector, LH transceiver GLC-SX-MM= • GE SFP, LC connector, SX transceiver GLC-ZX-SM= • GE SFP, LC connector, ZX transceiver GLC-T= • GE SFP, RJ-45 connector, 10/100/1000BASE-T transceiver CWDM-SFP-1470= • Cisco CWDM SFP 1470 nm; GE and 1G/2G FC (Grey) CWDM-SFP-1490= • Cisco CWDM SFP 1490 nm; GE and 1G/2G FC (Violet) CWDM-SFP-1510= • Cisco CWDM SFP 1510 nm; GE and 1G/2G FC (Blue) CWDM-SFP-1530= • Cisco CWDM SFP 1530 nm; GE and 1G/2G FC (Green
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