Ł
24 Dual-personality Gigabit Ports
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Two Built-in 12G Stacking
Interfaces
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1 Open Slot for Optional 2 10-
Gigabit Uplink Module
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L3 Advanced Routing Protocols,
OSPF, VRRP and DVMRP
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16 K L2 MAC Address Table/ 8K IP
Address Table/ 8K Routing Path
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Multilayer-aware (L2/L3/L4) ACL
for Security Protection and
Traffic Optimization
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Port Security and Enhanced
802.1x Port Authentication
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Backup Power System Support
Premium 10G Aggregation Switch
Secures Non-Stop Network Services
Benefits
Unique 24 GbE Copper and Fiber Connectivity in 1U-height Design
ZyXEL XGS-4728F Gigabit Ethernet Access Switch provides high-performance switching
functionalities to triple-play services such as Internet data exchange, Web surfing, IPTV and VoIP
telephony. The advantages not only fulfill customer needs but also enable service providers to
generate more profit.
Unlike competitors’ offering of individual models for GbE copper and fiber connectivity, the leading
architecture employed by XGS-4728F delivers 24 1000Base-T copper interfaces along with standard
RJ-45 connectors and 24 SFP slots in a 19” 1U enclosure. This unique benefit gives network designers
the highest flexibility and cost saving in terms of equipment investment, network administration and
system maintenance.
Built-in Stacking Ports Eliminate Hidden Network Expansion Cost
With two high-performance 12G stacking ports on the back panel, over 10 units of the XGS-4728F can
be easily hard-stacked in a ring architecture; this feature makes the XGS-4728F highly scalable and
eases the network expansion and administration. Moreover, as the stacking ports come with every
XGS-4728F unit, customers have no need to spend extra for stacking modules and stacking cables.
Stackable 24-port L3
Gigabit Switch with
optional 10G uplinks
XGS-4728F
True Wire-speed L3 Switching for High-Performance Networks
Each XGS-4728F provides 144 Gbps switching capacity for wire-speed performance delivered on all
GbE copper/fiber ports within the stack, as well as stacking ports and optional 10G uplinks. In
addition, advanced L3 switching, multicasting, resiliency including OSPF, DVMRP, VRRP also help
delivering optimal performance to the entire network.
Build-Up Large Networking Environment
The XGS-4728F designed for large Internet Services Provider and Telco market, increasing network
capability scare and provide fast efficient solution for customer. 16 K MAC Entries/8 K Routing Path is
an idea for large Internet services.
Specifications
Standard Compliance
• IEEE 802.3 10Base-T Ethernet
• IEEE 802.3u 100Base-TX Ethernet
• IEEE 802.ab 1000Base-T Ethernet
• IEEE 802.3x Flow control
• IEEE 802.1D Spanning tree protocol
• IEEE 802.1w Rapid Spanning tree protocol
• IEEE 802.1s Multiple Spanning tree protocol
• IEEE 802.1p Class of service, priority protocols
• IEEE 802.1Q VLAN tagging
• IEEE 802.1x Port Authentication
• IEEE 802.3ad LACP aggregation
Performance
• 144 Gbps non-blocking switching fabric
• Switching Forwarding Rate 100 Mpps
(1488000 pps/1000Base-T, 148800 pps/
100Base-TX)
• Wire-speed performance
MAC and Packet Buffer
• 16K MAC Address
• 768K Packet Buffer
Traffic Management and QoS
• Rate Limiting: Rule-based/Port-based
bandwidth control, 64 kbps granularity
• Dual-Rate-Three-Color
• CIR/PIR for bandwidth control
• Port-based egress traffic shaping
• Broadcast Storm Control
• IEEE 802.1p with 8 priority queues per port
for different traffic types
• WFR (Weighted Fair Queue)/WRR (Weighted
Round Robin)/SPQ scheduling algorithm
• DSCP/DSCP to 802.1p priority mapping
• IGMP/IGMP snooping v1, v2, v3
• MVR
• Congestion control on all ports
IP Routing and Service Features
• 64 IP routing domains
• 8 K IP address table
• Wire-speed IP forwarding
• RIP v1, v2
• 12K Routing Entries
• IGMP v1, v2, v3
• DHCP Server/Relay
Link Aggregation
• IEEE 802.3ad LACP link aggregation
• Static manually port trunking
• Up to 6 aggregation groups, 8 ports/per group
randomly selected
Resilient Network
• IEEE 802.1w Rapid Spanning Tree Protocol (RSTP)
• IEEE 802.1s Multiple Spanning Tree Protocol
(MSTP)
• BPS (Backup Power System)
User Security and Authentication
• IEEE 802.1Q tag-based and port-based VLAN
• Support GVRP, automatic VLAN member
registration
• 1K Static VLANs, up to 4K dynamic VLAN
• Full range 4 K PVID support
• Port-base VLAN & VLAN isolation
• IP Classification VLAN
• Intrusion Lock
• MAC Freeze
• MAC filtering per port
• Port security
• Limited MAC number per port
• IP Source Guard
• Loop Guard
• RADIUS MAC login
• IP Filtering
• TCP/UDP Socket Filtering
• BPDU transparency
• 802.1x port-based authentication
• Accounting by TACACS+ and RADIUS
Network Administration Security
• User name/password required for Web/Telnet/
local console administrators
• Two-level security by specific SNMP
read/write community
• Multiple login session
• Multiple access permission management
• SSH v1/v2
• SSL/TLS
Network Management
• ZyXEL iStacking™, up to 24 switches managed
by single IP address
• Web-based management
• Telnet CLI
• SNMP v1, v2c, v3
• RS-232c Local console
• IP management: static IP or DHCP Sever/Relay
• RMON four RMON groups 1, 2, 3, 9 (history,
statistics, alarms, and events)
• Port mirroring: Source/Destination/Both
port mirroring
Intelligent ACL
(L2/L3/L4 Access List Control)
• Based on MAC address
• Based on VLAN
• Based on IP address
• Based on Protocol type
• Based on TCP/UDP type
• Based on DSCP
Hardware Specifications
• Support of auto-negotiation
• Support of auto MDI/MDI-X
• Console: D-Sub 9 pin Female (DCE)
• Management: 1 out-of-band management
RJ-45 port
• Ports: 24 GbE dual-personality (RJ-45 or SFP slot)
ports + 2 12G stacking ports + 1 uplink slot for 2
10G capacity
Physical Specifications
• Dimensions: 438 ( W) x 310 (D) x 44.45 (H) mm
• Weight: 7 Kg
Power Requirements
• AC version (100-240 VAC, 50-60 Hz) or DC
version (-36 to -72V)
• MW (PPS-125-12) 100 W, 12 V@8.5 Amps
• Backup power supply supported
Environmental Specifications
• Operating temperature: 0ºC ~ 45ºC
• Storage temperature: -25ºC ~ 70ºC
• Humidity: 10% ~ 90% (non-condensing)
Certification
• UL 60950-1
• CSA 60950-1
• EN 60950-1
• IEC 60950-1
For more product information, visit us on the web at www.ZyXEL.com
Copyright © 2008 ZyXEL Communications Corp. All rights reserved. ZyXEL, ZyXEL logo are registered trademarks of ZyXEL Communications Corp. All other brands,
product names, or trademarks mentioned are the property of their respective owners. All specifications are subject to change without notice.
65-100-472801B 01/08