PRODUCT DATA
BUSINESS SERIES
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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48-Port 10/100 + 4-Port Gigabit Stackable Smart
Switch
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
Stacking
Stack Operation
Maximum Stack Size: 192 Ports
Maximum no. of Units in Stack: 6 (with SLM224G4S)
Hot Insertion and Removal
Ring and Chain Stacking Options
Master and Backup Master for Resilient Stack Control
Auto-numbering or Manual Configuration of Units in Stack
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 - RADIUS Authentication, MD5 Encryption
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
