Cisco 3750-48TS - Catalyst Switch - Stackable Manual de usuario descargar pdf (Pagina 7)

Data Sheet

Figure 5. Cisco Catalyst 3750 Series Switches

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 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.

Cisco

EnergyWise

●

Cisco EnergyWise for greenhouse gas emissions and operational cost optimization by measuring,

reporting, and reducing energy consumption across the entire corporate infrastructure, well beyond

the scope of IT.

Availability and Scalability

Superior

Redundancy

for Fault

Backup

●

1:N master redundancy allows each stack member to serve as a master, providing the highest

reliability for forwarding.

●

Cisco CrossStack UplinkFast (CSUF) technology provides increased redundancy and network

resiliency through fast spanning-tree convergence (less than 2 seconds) across a switch stack with

Cisco StackWise technology.

●

Cross-Stack EtherChannel provides the ability to configure Cisco EtherChannel technology across

different members of the stack for high resiliency.

●

IEEE 802.1w Rapid Spanning Tree Protocol (RSTP) provides rapid spanning-tree convergence

independent of spanning-tree timers and also offers the benefit of distributed processing.

●

Stacked units behave as a single spanning-tree node.

●

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.

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