
Data Sheet
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Optimal platform to support real-time applications, such as voice and video, by providing
features like IGMP snooping, multiple queues (four) 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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Enhanced QoS functions, including rate limiting for ingress/egress and per flow at 64 kbps
granularity
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HTTP interface
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User/network security via 802.1X (with RADIUS authentication) and MAC-based filtering
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Containment of storms - broadcast and multicast
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Increased expandability and availability across multiple switches using link aggregation
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Port trunking for up to eight groups with up to eight ports per group, allowing you to
increase your bandwidth for each uplink or server connection
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Simple Network Management Protocol (SNMP) and Remote Monitoring (RMON)
management expand your visibility options
Specifications
Table 1 contains the specifications, package contents, and minimum requirements for the Cisco
SLM248G4PS 48-Port 10/100 + 4-Port Gigabit Smart Switch.
Table 1. Specifications for the Cisco SLM248G4PS 48-Port 10/100 + 4-Port Gigabit Smart Switch: PoE
Specifications
Ports 48 RJ-45 connectors for 10BASE-T, 100BASE-TX, and 1000BASE-T with 4 Gigabit ports
and 2 combo SFP slots
Buttons None
Cabling type Unshielded twisted pair (UTP) Category 5 or better for 10BASE-T/100BASE-TX, UTP
Category 5 Ethernet or better for 1000BASE-T
LEDs Power, Link/Act, Speed
Performance
Switching capacity 17.6 Gbps, nonblocking
MAC table size 8000
Number of VLANs 128
Switch clustering
Switch cluster operation
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Maximum switch cluster size: 192 ports
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Maximum number of units in switch cluster: 4
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Hot insertion and removal
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Ring and chain options
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Master and backup master for resilient cluster control
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Auto-numbering or manual configuration of units in switch cluster
Management
Web user interface Built-in web user interface for easy browser-based configuration (HTTP)
SNMP SNMP versions 1, 2c, and 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,
and 9 only), RFC2737 entity MIB, RFC 2618 RADIUS client MIB
RMON Embedded RMON software agent supports 4 RMON groups (history, statistics, alarms, and
events) for enhanced traffic management, monitoring, and analysis
Firmware upgrade
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Web browser upgrade (HTTP)
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Trivial File Transfer Protocol (TFTP) upgrade
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