Datasheet | Switches
NEBS
COMPLIANT
X900-12X AND 24X SERIES
Advanced Gigabit Layer 3+ Expandable Switches
TM
AlliedWare Plus
OPERATING SYSTEM
Quality of Service
• Policy based QoS features
Key Features
x900-24XT
2 x 60Gbps expansion bays
24 x 10/100/1000BASE-T (RJ-45) copper ports
• Highly configurable traffic classification
• Buffered multiple packet remarking options
at egress on all ports, and on each of 8
egress queues per port
• Two-rate three-color (green, yellow, red)
bandwidth metering
Performance
• Layer 2 and 3 switching and routing at
wire-speed
• Full IPv4 routing
• IPv6 routing option
• Built from a 168Gbps switch fabric yielding
71.4 Million packets per second performance
(x900-24X)
• Provides up to 256K IPv4 route entries
• Supports full 4096VLANs
• Supports 4096 Layer 3 interfaces
• VLAN double tagging
• PrivateVLANs, providing security and port
isolation of multiple customers using the
sameVLAN
x900-24XT-N
NEBS Compliant1
2 x 60Gbps expansion bays
24 x 10/100/1000BASE-T (RJ-45) copper ports
• Low switching latency essential forVoice over IP
(VoIP) and real-time streaming media applications
x900-24XS
2 x 60Gbps expansion bays
24 x 100/1000BASE-X SFP ports
Resiliency
• Stack multiple units with the XEM-STK
• STP, RSTP, MSTP (802.1s)
• Port trunking (802.3ad LACP)
• VRRP
2
x900-12XT/S
1 x 60Gbps expansion bay
12 x combo ports (10/100/1000BASE-T
copper or SFP)
• EPSR
• Supports 10KB Jumbo frame size for data
center and server aggregation applications
• Gigabit SFP ports will support any
combination of 10/100/1000BASE-T,
100BASE-X, or 1000BASE-X SFPs
• Extensive wire-speed traffic classification for
ACLs and QoS
• Advanced routing protocols OSPF, BGP-4, RIP,
RIPv2, RIPng, PIM-SM.
• DHCP Option 82
Unmatched Flexibility
Management
The x900 Layer 3+ switches have high-speed
60Gbps expansion bays which provide a high level
of port flexibility and application versatility
unmatched by any other 1RU Gigabit Ethernet
switch on the market.The expansion modules can
be used in a variety of configurations to provide
tailored solutions that meet wide-ranging physical
networking requirements.
• Out of band 10/100/1000 Ethernet
management port and asynchronous
management port, both on the front panel
for ease of access
• An SD memory card socket on the front
panel, allowing software release files,
configurations and other files to be stored for
backup and distribution to other switches
• Port mirroring
• Wire-speed multicasting
• SSH and SNMPv3 for secure management
• 802.1x support
• RMON (4 groups)
10GbE expansion modules and hot-swappable
XFPs provide high-speed, high-capacity fiber
uplinks, with the option of either 10Gbps or
20Gbps uplink capacity to the network core.
Resiliency can be achieved by using 10GbE
modules and MSTP (802.1s) for fast failover on link
failure.This is suitable for wiring closet aggregation
of gigabit to the desktop links and aggregating
gigabit uplinks from other network switches.
Reliability and Future Proofing
• 60Gbps expansion bays support a choice of
modules, including 1x 10GbE, 12 x 1GbE
(SFP), 12 x 1GbE (RJ45), and stacking, for
port flexibility and application versatility
• 1RU form factor, high port density and
front-to-back cooling, ideal for high density
rack and wiring closet installations
• For the x900-24X: Eliminates the need for
redundant power supplies by providing
power supplies that are hot-swappable and
load-sharing
1
NEBS (Network Equipment Building System) is a series
of safety and conformance standards applied to
telecommunications equipment in North America.
2
AlliedWare Plus software release 5.2.1 supports
stacking of 2 x900-24X units. Support for more than 2
x900-24X units and the x900-12XT/S will be in a
future release.
Ethernet Protected Switched Rings (EPSR) and
10 GbE modules allow several x900-24X
switches to form a protected ring with sub
50ms failover.This feature is perfect for high
performance at the core of enterprise or
provider access networks.
• Full environmental monitoring of PSUs, fans,
temperature and internal voltages, with
SNMP traps to alert network managers in
case of any failure
Continued on next page
Allied Telesis
| Advanced Gigabit Layer 3+ Expandable Switches
X900-12X AND 24X SERIES
RFC 1542 Clarifications & Extensions for the Bootstrap
RFC 3415 View-based Access Control Model (VACM) for SNMP
RFC 3416 Version 2 of the Protocol Operations for SNMP
RFC 3417 Transport Mappings for the SNMP
RFC 3418 MIB for SNMP
RFC 3635 Definitions of Managed Objects for the Ethernet-
like Interface Types
Standards and Protocols
AlliedWare Plus™ Operating System Software
Version 5.2.1
Protocol
RFC 1700 Assigned Numbers
RFC 1812 Requirements for IPv4 Routers
RFC 1918 IP Addressing
Authentication
RFC 1321 MD5 Message-Digest Algorithm
RFC 1828 IP Authentication using Keyed MD5
RFC 2082 RIP-2 MD5 Authentication
RFC 2131 DHCP
RFC 2132 DHCP Options and BOOTP Vendor Extensions.
RFC 2581 TCP Congestion Control
RFC 3046 DHCP Relay Agent Information Option (DHCP
Option 82)
Multicast Support
Bootstrap Router for PIM-SM
IGMP & MLD snooping switches
IGMP Proxy
Border Gateway Protocol (BGP)
BGP Dynamic Capability
BGP Graceful Restart
RFC 3232 Assigned Numbers
RFC 3993 Subscriber-ID Suboption for DHCP Relay Agent
Option
IGMP Snooping
BGP Outbound Route Filtering
RFC 1112 Host extensions for IP multicasting
RFC 2236 Internet Group Management Protocol, version 2
(IGMPv2)
Extended Communities Attribute
RFC 1771 Border Gateway Protocol 4 (BGP-4)
RFC 1772 Application of the BGP in the Internet
RFC 1997 BGP Communities Attribute
RFC 2385 Protection of BGP Sessions via the TCP MD5
Signature Option
IPv6 Support
RFC 1886 DNS Extensions to support IPv6
RFC 1981 Path MTU Discovery for IPv6
RFC 2460 IPv6 specification
RFC 2362 PIM-SM
RFC 2715 Interoperability Rules for Multicast Routing
Protocols
RFC 2461 Neighbour Discovery for IPv6
RFC 2462 IPv6 Stateless Address Autoconfiguration
RFC 2463 ICMPv6
RFC 2464 Transmission of IPv6 Packets over Ethernet
Networks
RFC 2526 Reserved IPv6 Subnet Anycast Addresses
RFC 2711 IPv6 Router Alert Option
RFC 2893 Transition Mechanisms for IPv6 Hosts and
Routers
RFC 3056 Connection of IPv6 Domains via IPv4 Clouds
RFC 3484 Default Address Selection for IPv6
RFC 3513 IPv6 Addressing Architecture
RFC 3587 IPv6 Global Unicast Address Format
RFC 3376 IGMPv3
RFC 2439 BGP Route Flap Damping
RFC 2796 BGP Route Reflection - An Alternative to Full
Mesh IBGP
RFC 2858 Multiprotocol Extensions for BGP-4
RFC 2918 Route Refresh Capability for BGP-4
RFC 3065 Autonomous System Confederations for BGP
RFC 3107 Carrying Label Information in BGP-4
RFC 3392 Capabilities Advertisement with BGP-4
Open Shortest Path First (OSPF)
Graceful OSPF Restart
OSPF Link-local Signaling
OSPF Restart Signaling
OSPF TE Extensions
Out-of-band LSDB Resync
RFC 1245 OSPF protocol analysis
RFC 1246 Experience with the OSPF protocol
RFC 1370 Applicability Statement for OSPF
RFC 1765 OSPF Database Overflow
RFC 2328 OSPFv2
Encryption
FIPS 180-1 Secure Hash Standard (SHA-1)
FIPS 186 Digital Signature Standard (RSA)
FIPS 46-3 Data Encryption Standard (DES & 3DES)
RFC 2370 OSPF Opaque LSA Option
RFC 3101 OSPF Not-So-Stubby Area (NSSA) Option
RFC 3509 Alternative Implementations of OSPF Area Border
Routers
Ethernet
IEEE 802.2 Logical Link Control
IEEE 802.3 Ethernet CSMA/CD
IEEE 802.3ab 1000BASE-T
Management
IEEE802.1-PAE-MIB Port Access Control MIB
IEEE802.3-LAG-MIB Link Aggregation MIB
IGMP MIB
Quality of Service
IEEE 802.3ad Link Aggregation
IEEE 802.3ad (LACP) Link Aggregation Control Protocol
IEEE 802.3ae 10 Gigabit Ethernet
IEEE 802.3u 100BASE-T
IEEE 802.3x Flow Control - Full Duplex Operation
IEEE 802.3z Gigabit Ethernet
Differentiated Services
MSTP MIB
PIM MIB
IEEE 802.1p Priority Tagging
Combined strict priority & WRR queuing
RFC 2211 Specification of the Controlled-Load Network
Element Service
RFC 1155 Structure and Identification of Management
Information for TCP/IP-based Internets
RFC 1157 Simple Network Management Protocol (SNMP)
RFC 1212 Concise MIB definitions
RFC 1213 MIB for Network Management of TCP/IP-based
internets: MIB-II
RFC 1215 Convention for defining traps for use with SNMP
RFC 1227 SNMP MUX protocol and MIB
RFC 1239 Standard MIB
RFC 1493 Bridge MIB
RFC 1724 RIPv2 MIB Extension
RFC 1757 RMON (groups 1,2,3 and 9)
RFC 1850 OSPFv2 MIB
RFC 2011 SNMPv2 MIB for IP using SMIv2
RFC 2012 SNMPv2 MIB for TCP using SMIv2
RFC 2096 IP Forwarding Table MIB
RFC 2239 Definitions of Managed Objects for IEEE 802.3
Medium Attachment Units (MAUs)
RFC 2674 Definitions of Managed Objects for Bridges with
Traffic Classes, Multicast Filtering
RFC 2787 Definitions of Managed Objects for VRRP
RFC 2790 Host MIB
RFC 2819 RMON MIB
RFC 2863 Interfaces Group MIB
RFC 2932 IPv4 Multicast Routing MIB
RFC 3164 Syslog Protocol
RFC 3411 An Architecture for Describing SNMP Management
Frameworks
RFC 2474 Definition of the Differentiated Services Field (DS
Field)
RFC 2475 An Architecture for Differentiated Services
RFC 2597 Assured Forwarding PHB Group
RFC 2697 A Single-Rate Three-Color Marker
RFC 2698 A Two-Rate Three-Color Marker
RFC 3246 Expedited Forwarding PHB (Per-Hop Behavior)
General Routing
ECMP Equal Cost Multi Path routing
RFC 768 User Datagram Protocol (UDP)
RFC 791 Internet Protocol (IP)
RFC 792 Internet Control Message Protocol (ICMP)
RFC 793 Transmission Control Protocol (TCP)
RFC 826 Address Resolution Protocol (ARP)
RFC 894 Standard for the transmission of IP datagrams
over Ethernet networks
Redundancy
EPSR Ethernet Protection Switched Rings
IEEE 802.1D Spanning Tree Protocol (STP) - MAC Bridges
IEEE 802.1s Multiple Spanning Tree Protocol (MSTP)
IEEE 802.1t - 2001 802.1D maintenance
IEEE 802.1w - 2001 Rapid Spanning Tree Protocol (RSTP)
RFC 3768 Virtual Router Redundancy Protocol (VRRP)
RFC 903 Reverse ARP
RFC 919 Broadcasting Internet datagrams
RFC 922 Broadcasting Internet datagrams in the presence
of subnets
RFC 925 Multi-LAN ARP
RFC 932 Subnetwork addressing scheme
RFC 950 Internet Standard Subnetting Procedure
RFC 951 Bootstrap Protocol (BootP)
RFC 1027 Proxy ARP
Routing Protocols
RFC 1058 Routing Information Protocol (RIP)
RFC 2080 RIPng for IPv6
RFC 2453 RIP version 2
RFC 1035 DNS Client
RFC 1042 Standard for the transmission of IP datagrams
over IEEE 802 networks
RFC 1071 Computing the Internet checksum
RFC 1122 Internet Host Requirements
RFC 1191 Path MTU discovery
RFC 1256 ICMP Router Discovery Messages
RFC 1518 An Architecture for IP Address Allocation with
CIDR
Security Features
802.1x Authentication protocols (TLS, TTLS & PEAP)
IEEE 802.1x Port Based Network Access Control Port
Security (intrusion detection)
Bridge Protocol Data Unit Protection
RFC 2246 TLS Protocol v1.0
RFC 3546 Transport Layer Security (TLS) Extensions
RFC 3748 PPP Extensible Authentication Protocol (EAP)
RFC 4251 Secure Shell (SSHv2) Protocol Architecture
RFC 4252 Secure Shell (SSHv2) Authentication Protocol
RFC 3412 Message Processing and Dispatching for the
SNMP
RFC 3413 SNMP Applications
RFC 3414 User-based Security Model (USM) for SNMPv3
RFC 1519 Classless Inter-Domain Routing (CIDR)
RFC 1541 DHCPv4 Client & Server
Allied Telesis
| Advanced Gigabit Layer 3+ Expandable Switches
X900-12X AND 24X SERIES
RFC 4253 Secure Shell (SSHv2) Transport Layer Protocol
Ordering Information
AT-x900-24XT
Advanced Gigabit Layer 3+ Expandable Switch
2 x High Speed Expansion Bays + 24 x
10/100/1000BASE-T (RJ-45) ports
Power supply and fan module
AT-PWR01 Hot-swappable load-sharing power supply
Order number: 990-001084-zz
RFC 4254 Secure Shell (SSHv2) Connection Protocol
SSH Remote Login
SSLv2
SSLv3
Where zz = 10 for U.S. power cord
20 for no power cord
Services
30 for U.K. power cord
RFC 854 Telnet protocol specification
RFC 855 Telnet Option Specifications
RFC 857 Telnet Echo Option
1 PSU and fan only module
AT-x900-24XT-P-xx
990-002144-xx
40 for Asia/Pacific power cord
50 for European power cord
80 for 48v DC power supply
RFC 858 Telnet Suppress Go Ahead Option
RFC 1091 Telnet terminal-type option
RFC 1305 Network Time Protocol, version 3 (NTPv3)
RFC 1350 Trivial File Transfer Protocol (TFTP)
RFC 1985 SMTP Service Extension
RFC 2049 MIME
RFC 2554 SMTP Service Extension for Authentication
RFC 2821 Simple Mail Transfer Protocol (SMTP)
RFC 2822 Internet Message Format
SCP Secure Copy
2 PSUs
AT-x900-24XT-DP-P-zz
990-0002145-zz
AT-FAN01 Fan only module
Order number: 990-001085-00
AT-x900-12XT/S
AT-x900-24XT-N
NEBS Compliant Advanced Gigabit Layer
3+ Expandable Switch
2 x High Speed Expansion Bays + 24 x
10/100/1000BASE-T (RJ-45) ports
Advanced Gigabit Layer 3+ Expandable Switch
1 x High Speed Expansion Bay + 12 x combo ports
(10/100/1000BASE-T copper or SFP)
1 fixed AC PSU
Order number: 990-001940-60 (with power cords)
Order number: 990-001940-20 (without power cords)
VLAN Support
IEEE 802.1ad VLAN double tagging (Q-in-Q)
IEEE 802.1Q Virtual LANs
IEEE 802.1v VLAN classification by protocol & port
IEEE 802.3ac VLAN tagging
1 PSU and fan only module
AT-x900-24XT-N-P-85
Order number: 990-002151-85
Expansion Modules
AT-XEM-1XP
2 PSUs
AT-x900-24XT-N-DP-P-85
Order number: 990-002152-85
1 x 10GbE (XFP)
Order number: 990-000997-00
AT-x900-24XS
AT-XEM-12S NEBS compliant
12 x 100/1000BASE-X SFP ports
Order number: 990-000998-00
Advanced Gigabit Layer 3+ Expandable Switch
2 x High Speed Expansion Bays +
24 x 100/1000BASE-X SFP ports
AT-XEM-12T
12 x 10/100/1000BASE-T (RJ-45) ports
Order number: 990-000999-00
1 PSU and fan only module
AT-x900-24XS-P-xx
990-002146-xx
6
AT-XEM-STK
2 PSUs
AT-x900-24XS-DP-P-zz
990-0002147-zz
2 x High Speed Stacking Ports
Order number: 990-001626-00
AT-XEM-STK-CBL0.5
Half meter stacking cable
Order number: 990-002063-00
Where xx = 00 or 60 for all power cords
20 for no power cord
80 for 48V DC power supply
Where zz = 10 for U.S. power cord
20 for no power cord
AT-XEM-STK-CBL2.0
Two meter stacking cable
Order number: 990-002064-00
30 for U.K. power cord
40 for Asia/Pacific power cord
50 for European power cord
80 for 48V DC power supply
Allied Telesis
| Advanced Gigabit Layer 3+ Expandable Switches
X900-12X AND 24X SERIES
SFP Modules
Feature licenses
About AlliedTelesis
AT-FL-X900-01
AT-SPFX/2
AlliedTelesis is part of the AlliedTelesis Group.
Founded in 1987, the company is a global
provider of secure Ethernet/IP access solutions
and an industry leader in the deployment of IP
Triple Play networks over copper and fiber
access infrastructure. Our POTS-to-10G iMAP
integrated Multiservice Access Platform and
iMG intelligent Multiservice Gateways, in
conjunction with advanced switching, routing
and WDM-based transport solutions, enable
public and private network operators and
service providers of all sizes to deploy scalable,
carrier-grade networks for the cost-effective
delivery of packet-based voice, video and data
x900 Advanced Layer 3 license:
100BASE-FX 1310nm fiber up to 2km
• OSPF
• BGP4
AT-SPFX/15
100BASE-FX 1310nm fiber up to 15km
• PIMv4
• VLAN double tagging (Q in Q)
Order number: 980-000127
AT-SPFX/40
100BASE-FX 1310nm fiber up to 40km
8
AT-FL-X900-02
x900 IPv6 Pack:
• IPv6 Static Routes
• IPv6 Management
• RIPng
Order number: 980-000128
AT-SPFXBD-LC-13
100BASE-BX Bi-Di (1310nm Tx, 1550 Rx) fiber up to
15km
AT-SPFXBD-LC-15
100BASE-BX Bi-Di (1550nm Tx, 1310 Rx) fiber up to
15km
7
AT-SPTX
Service and Support
10/100/1000BASE-T 100m Copper
AlliedTelesis provides value-added support
services for its customers under its Net.Cover
programs. For more information on Net.Cover
support programs available in your area, contact
your AlliedTelesis sales representative or visit
6
The XEM-STK ships with no stacking cables.
7
AT-SPSX
The AT-SPTX SFP is not supported on the
x900-12XT/S.
1000BASE-SX
GbE multi-mode 850nm fiber
AT-SPLX10
8
Available late 2008
1000BASE-LX
GbE single-mode 1310nm fiber up to 10km
AT-SPLX40
1000BASE-LX
GbE single-mode 1310nm fiber up to 40km
AT-SPLX40/1550
1000BASE-LX
GbE single-mode 1550nm fiber up to 40km
AT-SPZX80
1000BASE-ZX
GbE single-mode 1550nm fiber up to 80km
10GbE XFP Modules
For use with XEM-1XP
AT-XPSR
10GBASE-SR
850nm Short-haul, 300m with MMF
AT-XPLR
10GBASE-LR
1310nm Medium-haul, 10km with SMF
AT-XPER40
10GBASE-ER
1550nm Long-haul, 40km with SMF
USA Headquarters | 19800 North Creek Parkway | Suite 100 | Bothell | WA 98011 | USA | T: +1 800 424 4284 | F: +1 425 481 3895
European Headquarters |Via Motta 24 | 6830 Chiasso | Switzerland | T: +41 91 69769.00 | F: +41 91 69769.11
Asia-Pacific Headquarters | 11 Tai Seng Link | Singapore | 534182 | T: +65 6383 3832 | F: +65 6383 3830
© 2008 AlliedTelesis Inc.All rights reserved. Information in this document is subject to change without notice. All company names, logos, and product designs that are trademarks or registered trademarks are the property of their respective owners. 617-000169 Rev. E
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