Cisco 3750E-24TD - Catalyst Switch - Stackable Uživatelský manuál stáhnout pdf (Strana 8)

Data Sheet

Intelligent Power over Ethernet (PoE) Management

The Cisco Catalyst 3750-E PoE models support Cisco IP phones and Cisco Aironet WLAN access points, as well as

any IEEE 802.3af-compliant end device. The Cisco Catalyst 3750-E-48PD can support 48 simultaneous full-powered

PoE ports at 15.4W with the 1150W power supply.

●

Cisco Discovery Protocol version 2 (CDPv2) allows the Cisco Catalyst 3750-E Series Switch to negotiate a

more granular power setting when connecting to a Cisco powered device such as IP phones or access points

than what is provided by IEEE classification.

●

Per Port power consumption command allows customers to specify maximum power setting on an individual

port.

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Per Port PoE Power Sensing measures actual power being drawn, enabling more intelligent control of

powered devices.

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The PoE MIB provides proactive visibility into power usage and allows customers to set different power level

thresholds

Management and Control Features

Each Cisco Catalyst 3750-E Series stack is managed as a single object and has a single IP address. The primary

management and control features in the Cisco Catalyst 3750-E Switches include:

●

Cisco IOS Software CLI support provides common user interface and command set with all Cisco routers and

Cisco Catalyst desktop switches.

●

Switching Database Manager Templates for access, routing, and VLAN deployment allow the administrator to

easily maximize memory allocation to the desired features based on deployment-specific requirements.

●

Generic On-Line Diagnostic (GOLD) checks the health of hardware components and verifies proper operation

of the system data and control plane at run time and boot time.

●

Virtual routing and forwarding (VRF)-Lite enables a service provider to support two or more VPNs, with

overlapping IP addresses.

●

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.

●

Smart Multicast, with Cisco StackWise Plus technology, allows the Cisco Catalyst 3750-E Series to offer

greater efficiency and support for more multicast data streams such as video by putting each data packet

onto the backplane only once.

●

Internet Group Management Protocol (IGMP) Snooping for IPv4 and IPv6 MLD v1 and v2 Snooping provide

fast client joins and leaves of multicast streams and limit bandwidth-intensive video traffic to only the

requestors.

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Multicast VLAN Registration (MVR) continuously sends multicast streams in a multicast VLAN while isolating

the streams from subscriber VLANs for bandwidth and security reasons.

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Per-port broadcast, multicast, and unicast storm control prevents faulty end stations from degrading overall

systems performance.

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Voice VLAN simplifies telephony installations by keeping voice traffic on a separate VLAN for easier

administration and troubleshooting.

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Cisco VLAN Trunking Protocol (VTP) supports dynamic VLANs and dynamic trunk configuration across all

switches.

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Remote Switch Port Analyzer (RSPAN) allows administrators to remotely monitor ports in a Layer 2 switch

network from any other switch in the same network.

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