Cisco Gigabit Smart Switch with Resilient Clustering Technology and PoE SLM248G4PS Instrukcja Użytkownika Pobierz pdf (Strona 2)

Data Sheet

cluster with other Cisco Small Business Smart Switches that support Resilient Clustering

technology - the Cisco SLM224G4PS, SLM224G4S, and SLM248G4S.

For wireless or VoIP deployments, the Cisco SLM224G4PS supports the IEEE802.3af standard for

Power over Ethernet (PoE). This eliminates the need for additional power cables or a nearby

power outlet. PoE-enabled devices such as IP cameras, IP phones, and wireless access points

can be positioned in optimal locations such as in ceilings and walls - even outdoors - and in

locations where there is no accessible power outlet, thereby reducing installation costs and making

installations easier.

Businesses are recognizing the benefits of voice over IP (VoIP) technology and are quickly

migrating their voice services to IP-based platforms, requiring their local area networks to support

both voice and data applications. The extensive quality of service (QoS) features of the Cisco

SLM248G4PS make the solution ideal for real-time applications such as voice and video. The four

priority queues, together with weighted round-robin and strict priority scheduling techniques, let

network administrators quickly prioritize real-time voice and video traffic over data traffic. Individual

users or applications can also be prioritized above others, using various class of service options -

by port, Layer 2 priority (802.1p), and Layer 3 priority (type of service [ToS] or differentiated

services code point [DSCP]). Intelligent broadcast, multicast, and unknown unicast storm control

minimize and contain the effects that these types of storms have on regular traffic. Internet Group

Management Protocol (IGMP) snooping limits bandwidth-intensive video traffic to only the

requestors without flooding to all users. Incoming traffic can be policed and outgoing traffic can be

shaped, allowing network administrators to control network access and traffic flow.

The Cisco SLM248G4PS also includes features for network expansion and faster throughput

performance. Link aggregation enables network administrators to create multiple high-bandwidth

trunks between switches. This provides reliability because the system will continue to operate if

one of the links breaks. Spanning Tree Protocol (STP) allows administrators to avoid network

loops and to build a mesh of switches to increase the availability of their network.

The simplified user interface provides an intuitive, highly secure management platform, enabling

administrators to better utilize the extensive feature set of the switch for a better-optimized, more

secure network.

Features

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Forty-eight 10/100 switched RJ-45 ports

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Four 10/100/1000 ports with two combo SFP slots

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Switching capacity delivers wire-speed performance at 17.6 Gbps nonblocking

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WebView monitoring allows administrators to view the current status and configuration

using their favorite web browser

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PoE on 10/100 ports 1 through 12 and 25 through 36 supplies up to the IEEE 802.3af

maximum of 180W power total

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Automatic medium dependent interface (MDI) and MDI crossover (MDI-X) cable detection

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Port-based and 802.1Q-based VLANs support up to 128 VLANs

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Port configuration settings for link, speed, auto MDI/MDI-X, flow control, and more

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Fully rack mountable using the included rack-mounting hardware

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MAC address table supports up to 8000 MAC address entries

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