Linksys SLM248G4S manual Features, Specifications, Performance, Switch Clustering, Management

Features

•48 - 10/100 Switched RJ-45 ports deliver up to 9.6 Gbps of throughput

•2 shared 10/100/1000 mini- GBIC ports

•Switching Capacity delivers wire-speed performance at 17.6 Gbps non-blocking capacity

•WebView monitoring allows administrators to view the current status and configuration using their favorite web browser

•Auto MDI/MDIX per port allows for automatic Cable detection

•Port-based and 802.1q- based VLANs support up to 128 VLANs

•Port configuration settings for Link, Speed, Auto MDI/ MDIX, Flow Control, and more

•Fully rack-mountable using the included rack mounting hardware

•MAC Address table supports up to 8K MAC Address entries

•Optimal platform to support real-time applications, such as voice and video, by providing features like IGMP snooping, multiple queues (4) with appropriate scheduling techniques, prioritization of traffic based on port, 802.1p, IP TOS/ precedence/DSCP, and line rate forwarding mechanisms

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PRODUCT DATA

BUSINESS SERIES

48-Port 10/100 + 4-Port Gigabit Smart Switch with Resilient Clustering Technology

Specifications

Model	SLM248G4S
Ports	48 RJ-45 Connectors for 10BASE-T/100BASE-TX,
	4 RJ-45 Connectors for 10BASE-T/100BASE-TX/1000BASE-T with
	2 Shared SFP Slots and 2 Gigabit Ports
Buttons	None
Cabling Type	UTP CAT 5 or better for 10BASE-T/100BASE-TX,
	UTP CAT 5e or better for 1000BASE-T
LEDs	Power, Link/Act, Speed

Performance

Switching Capacity	17.6 Gbps, Non-blocking
MAC Table Size	8K
Number of VLANs	128

Switch Clustering

Switch Cluster Operation	Maximum Switch Cluster Size: 192 Ports
	Maximum no. of Units in Switch Cluster: 6 (with SLM224G4S)
	Hot Insertion and Removal
	Ring and Chain Options
	Master and Backup Master for Resilient Cluster Control
	Auto-numbering or Manual Configuration of Units in Switch Cluster
Management
Web User Interface	Built-in Web UI for easy browser-based configuration (HTTP)
SNMP	SNMP version 1, 2c, 3
SNMP MIBs	RFC1213 MIB-2, RFC2863 Interface MIB, RFC2665 Ether-like MIB,
	RFC1493 Bridge MIB, RFC2674 Extended Bridge MIB (P-bridge, Q-bridge),
	RFC2819 RMON MIB (groups 1, 2, 3, 9 only), RFC2737 Entity MIB,
	RFC 2618 RADIUS Client MIB
RMON	Embedded Remote Monitoring (RMON) software agent supports four
	RMON groups (history, statistics, alarms, and events) for enhanced traffic
	management, monitoring, and analysis
Firmware Upgrade	Web Browser Upgrade (HTTP)
	TFTP Upgrade
Port Mirroring	Traffic on a port can be mirrored to another port for analysis with a
	network analyzer or RMON probe
Other Management	Switch Audit Log
	DHCP Client
	BootP
	SNTP
	Xmodem Upgrade
	Cable Diagnostics
	Port Mirroring
	PING
Security Features
IEEE 802.1x	802.1x Authentication: RADIUS; EAP-TTLS, PEAP, EAP-MD5, LEAP, EAP-TLS
Access Control	ToS/DSCP
Availability
Link Aggregation	Link Aggregation Using IEEE 802.3ad LACP
	Up to 8 Ports in Up to 8 Trunks
Storm Control	Broadcast and Multicast
Spanning Tree	IEEE 802.1d Spanning Tree, Fast Linkover
IGMP Snooping	IGMP (v1/v2) Snooping provides for fast client joins and leaves of multicast
	streams and limits bandwidth-intensive video traffic to only the requestors
QoS
Priority Levels	4 Hardware Queues
Scheduling	Priority Queueing and Weighted Round Robin (WRR)
Class of Service	Port-based
	802.1p VLAN Priority-based
	IPv4 IP Precedence/ToS/DSCP