Data Sheet
© 2008-2009 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information.
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Security Features
IEEE 802.1X
802.1X - RADIUS authentication; MD5 encryption
Access control
ACLs - drop or rate limit based on:
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Source and destination MAC address
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Source and destination IP address
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Protocol
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ToS/DSCP
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Port
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VLAN
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Ethertype
Availability
Link aggregation
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Link aggregation using IEEE 802.3ad Link Aggregation Control Protocol (LACP)
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Up to 8 ports in up to 8 trunks
Storm control
Broadcast and multicast
Spanning Tree
IEEE 802.1d STP, IEEE 802.1w RSTP, IEEE 802.1s MSTP, Fast Linkover
IGMP snooping
IGMP (versions 1 and 2) 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 queuing and weighted round-robin (WRR)
Class of service
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Port based
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802.1p VLAN priority based
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IPv4 IP precedence/ToS/DSCP
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TCP/UDP port
Layer 2
VLAN
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Port-based and 802.1Q-based VLANs
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Management VLAN
Head-of-line (HOL) blocking
HOL blocking prevention
Jumbo frame
Supports frames up to 10 KB
Standards
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802.3 10BASE-T Ethernet
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802.3u 100BASE-TX Fast Ethernet
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802.3ab 1000BASE-T Gigabit Ethernet
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802.3z Gigabit Ethernet,
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802.3x flow control
Environmental
Dimensions
W x H x D
17.32 x 1.75 x 13.7 in.
(440 x 44 x 348 mm)
Unit weight
11.42 lb (5.18 kg)
Power
100–240V 0.5A
Certification
FCC Part 15 Class A, CE Class A, UL CSA (CSA22.2), CE mark, CB
Operating temperature
32º to 122ºF (0º to 45ºC)
Storage temperature
-4º to 158ºF (-20º to 70ºC)
Operating humidity
20% to 95%
Storage humidity
5% to 90% noncondensing
Package Contents
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Cisco SRW248G4P 48-Port 10/100 + 4-Port Gigabit Switch
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AC power cord
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Rack-mounting kit with brackets and hardware
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CD with user guide in PDF format
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Online registration card
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Console cable
