SERVERIRON APPLICATION SWITCHES

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1 SERVERIRON APPLICATION SWITCHES Intelligent Layer 4-7 Application Switches Features t Intelligent load balancing, Layer 7 content switching and security for mission-critical applications t Integrated full-function Layer 2/3 switching and routing combined with high-performance Layer 4-7 switching t Support for up to 15,000,000 concurrent sessions,and 56 Gbps of throughput t High-availability server load balancing with stateful fail-over t Industry s most powerful content switching, including URL, Cookie,XML,HTTP Header,and SSL Session ID based switching t High performance Server,Cache,VPN/Firewall and ISP link load balancing t Wire-speed Gigabit rate protection against Denial of Service (DoS) attacks t Most scalable Global Server Load Balancing (GSLB) with DNS Proxy and client proximity measurements t Ease of use and manageability with IronView Network Manager (INM) t Always-on network monitoring with standards-based sflow t Superior support for all major streaming media protocols t Industry s #1 Layer 4-7 application switch with Modular 10 Gigabit Ethernet Support ServerIron Intelligent Application Switching and Security System with Internet IronWare Layer 2 through 7 Switching Foundry Networks award-winning ServerIron Family of switches provide high performance Layer 2 through 7 switching, enabling network managers to control and manage today s exploding IP transactions, IP applications and e-commerce traffic flows. Internet IronWare, Foundry s unique software suite of application traffic management capabilities powers the ServerIron switches to direct requests to the right server and application based on the information that resides beyond the traditional Layer 2 and 3 packet headers. ServerIron eases escalating application traffic overload, dramatically increases service availability, maximizes utilization, reduces the burden of server farm management, and allows the entire server facility to scale to meet current and future needs. Built on Foundry s proven IronCore and JetCore architectures, ServerIron enables application traffic switching based on Layer 2 through Layer 7 definitions.serveriron delivers industry-leading performance for Internet traffic management functions, including local and global server load balancing, ISP link load balancing,firewall load balancing,and transparent cache switching. ServerIron s superior content-switching capabilities 1

2 include support for up to 256 rules based on URL, HTTP header, XML, cookie and SSL session ID content. Furthermore, ServerIron provides the foundation for high service availability, disaster recovery,location and server transparency,backbone cost control,and a consistent user experience. ServerIron supports the following major traffic management applications: 1. Efficient Server Load Balancing (SLB) Distribute IPbased services and transparently balance traffic across multiple servers while continuously monitoring server,application and content health.this enhances overall reliability and availability of the services while simultaneously ensuring peak server farm utilization. 2. Robust Application Security Shield server farms and applications from wire-speed Gigabit rate DoS, DDoS, virus and worm attacks while serving legitimate application traffic. Improve security using IronShield TM security suite with support for features like advanced ACLs and sflow network monitoring. 3. Disaster Recovery and Global Server Load Balancing (GSLB) Distribute services transparently across multiple sites and server farm locations and balance the traffic across those sites/servers on a global basis while monitoring site/server and application health. By directing the client to the best site for the fastest content delivery, ServerIron enhances overall application availability and reduces bandwidth costs. Site level redundancy and rapid transparent failover are supported for disaster recovery. 4. Firewall Load Balancing (FWLB) Increase the network s overall firewall performance by distributing Internet traffic load across multiple firewalls. Overcome firewall scalability limitations, increase firewall throughput and performance, and improve firewall resiliency by eliminating the firewall as a single point of failure. 5. Transparent Cache Switching (TCS) Eliminate the need to configure each client browser, improve Internet response time, decrease WAN access costs, and increase overall web caching solution resiliency by balancing web traffic across multiple caches. ServerIron improves service availability by implementing cache health checking and redirects client requests to the next available cache server or directly to the origin server in the event of a cache or server farm failure. 6. ISP Link Load Balancing (LLB) Significantly increase Enterprise Internet link utilization and reduce the cost of ISP service without the complexities and limitations of BGP routing.improve bandwidth scalability with optimal capacity utilization based on intelligent traffic switching using key metrics like service response time and bandwidth price. Achieve load balancing, redundancy and resiliency on business-critical Internet links with a single application. Key Benef its Server and Application Availability ServerIron ensures service availability by offering switch, server, link,and session level redundancy. In the event of a server or application outage,serveriron provides detection and rapid fail-over to the next server in a logical group that supports a like service. ServerIron detects application error conditions such as HTTP 404 Object not found before the client sees them and transparently redirects the requests to other servers without any manual intervention SX ServerIronXL NetIron FX OC-3, -12, -48 Internet FSRP VRRP 1000-SX BigIron 4K t Figure 1 NetIron FX 1000-SX ServerIronXL To provide 100 percent availability, ServerIron includes an active-standby or active-active redundancy capability that protects against session loss. When enabled, this feature allows network administrators to establish primary and secondary load balancing switches to support identical configuration parameters. In active-standby mode, one unit operates while the other unit sits as a backup. In active-active mode, both units operate symmetrically. In either situation, each switch continuously monitors the health of the other. In the event that 2

3 one device fails, the other switch takes over without losing sessions or connectivity. ServerIron also supports link-level redundancy that ensures server connectivity by automatically switching sessions from a failed link to a redundant link. ServerIron s extensive service health check capability monitors Layer 2,Layer 3,Layer 4,and Layer 7 connectivity and services and determines the servers ability to respond to user requests. This ensures fast detection of service problems and eliminates service outage. Robust Security With a rich set of advanced high-performance security features, the ServerIron acts as the last line of defense for the servers and applications from malicious clients. Using the superior performance and advanced security algorithms, the ServerIron can prevent unauthorized client requests from reaching the server and therefore substantially improving server availability. ServerIron offers the industry s best and the most advanced security intelligence as part of the high-performance IronShield TM security suite. ServerIron switches protect the networks, server farms and applications against wire-speed Gigabit DoS attacks. Only legitimate client traffic is allowed to pass through to the real servers. With sophisticated and highperformance URL, cookie, HTTP header and XML content filtering, ServerIron switches prevent viruses and worms from spreading to the application infrastructure through application messages. Maximum Scalability ServerIron supports high port density on both the stackable and chassis platforms, allowing for support of massive server farms and network devices such as firewalls and caches. TrafficWorks IronWare running on ServerIron simplifies network design by enabling network managers to create a server farm, represented by a single IP address known as a Virtual IP (VIP) address. ServerIron appears as a virtual server with a VIP address that controls, monitors, and directs client requests to the most appropriate real server in a server farm. By supporting a wide selection of intelligent load balancing methods, network administrators can transparently and easily scale server capacity regardless of the server platform. ServerIron delivers these benefits without using expensive hardware add-ons or serverside agents. ServerIron allows ISPs and enterprises to deploy GSLB to transparently expand server capacity on a worldwide basis by redirecting service requests across multiple data centers located around the world and scale application capabilities to global proportions. For enhanced security and performance, ServerIron s FWLB eliminates firewall bottlenecks and scales firewall implementations by balancing and distributing load across multiple firewalls. With load balancing support for synchronous, non-synchronous,network Address Translation (NAT),Layer 2, and Layer 3 firewalls,network administrators can deploy firewalls in the most flexible and reliable manner. ServerIron supports active-standby as well as active-active FWLB configurations. ServerIron s FWLB supports environments built on static or dynamic routing protocols including RIP V2 and OSPF. NetIron 400 ServerIron 400 Internet t Figure 2 Easy to Set Up and Manage NetIron 400 ServerIron 400 ServerIron is simple to configure and manage using the Foundry Command Line Interface (CLI) or built-in Web interface.the CLI uses well known Cisco-like commands allowing network administrative staff to easily configure all Foundry products. In addition, ServerIron s support for Simple Network Management Protocol (SNMP) allows device management using applications such as HP OpenView, available on major server platforms including Sun Solaris,HP-UX,and Windows NT. Foundry s IronView NMS application can be used to monitor and chart SLB and TCS data polled at regular intervals. Formats include bar graph, line graph, and pie chart allowing network managers to easily collect and display detailed information about network traffic destined to server farms.network administrators can also gauge the amount of traffic between servers and clients, as well as which application is dominating network traffic. Extensive accounting and statistics allow network managers to easily collect and display detailed information about network 3

4 traffic destined to server farms. Network administrators can also gauge the amount of traffic between servers and clients,as well as which application is dominating network traffic. In addition, ServerIron tracks the number of active and open sessions per server.these statistics can also be used to track traffic loads on servers that support multiple applications. ServerIron supports advanced configuration synchronization features to minimize configuration errors, and consequently network and application downtime. Using the command-bycommand and block-by-block synchronization modes, administrators have the flexibility to replicate configuration on the peer ServerIron in high availability designs at the granularity they desire without manual repetition. Additionally, ServerIron products are integrated with IronView Network Manager (INM) to provide comprehensive centralized configuration management. The INM supports configuration creation, archival,comparison and tracking of configuration files for all the ServerIrons deployed in a network. Administrators are able to update configurations on multiple ServerIrons with a click of the button. IronClad Application Performance ServerIron delivers unmatched Layer 2 through Layer 7 switching performance.utilizing the same proven technology of Foundry s BigIron wire-speed switches, all ServerIron platforms contain a unique distributed switching fabric and powerful packet processing engines to deliver load-balancing capacity of over 150,000 Layer 4 connections per second including data transfer,or 600,000 connection setups per second with no session loss. As well,serveriron scales to maintain 15,000,000 concurrent sessions.this ensures service availability during peak application traffic load and during massive denial of service attacks. Key Features Exceptional Performance and Capacity t Industry Leader in Concurrent Session Capacity ServerIron effectively handles over 15,000,000 concurrent connections to accommodate more client traffic as the application infrastructure experiences growing traffic demands. t Direct Server Return (Switch Back) Inherently asymmetrical nature of streaming media and bulk data applications requires highthroughput support.the client-to-server traffic flows through the load balancing device but the return (server-to-client) traffic,which typically consumes more bandwidth because it contains the information that the client has asked for,switches directly to the client on the return path.by avoiding the load-balancing device,switch Back provides wire-speed throughput servicing the clients. t Throughput The various ServerIron platforms provide differentiated system performance and throughput levels from 2 Gbps with ServerIronXL,right up to 56 Gbps with ServerIron 800/850 depending on policies enabled on the ServerIron. t Session Processing Foundry leads the industry with realworld session processing capabilities of over 600,000 connection setups per second. t Symmetric Load Balancing Multiple switches can be deployed to increase load-balancing capabilities in parallel and multiply the total connection capacity and overall performance.also known as an active-active configuration,ironware s symmetric load balancing provides cross-platform fault tolerance,picking up the full load where the failed switch left off without losing any state information. t Switching Capacity Built on Foundry s custom ASIC designs, ServerIronXL,ServerIron 100 Series,ServerIron 400 and ServerIron 800 respectively deliver 4.2 Gbps,20 Gbps,128 Gbps and 256 Gbps of total switching capacity.serveriron 450 and 850 deliver 128 and 256 Gbps of total switching capacity. t Trunking for Performance Trunk groups can be configured between ServerIron switches,between ServerIron and other standards-compliant switches,or between the ServerIron switch and the server to increase overall server farm bandwidth,throughput, performance,and redundancy. ServerIronXL supports up to five trunk groups containing from two to four 10/100Base TX ports, and ServerIron 800 and 850 support up to 22 trunk groups. t IP Filters Network managers can define up to 1024 IP filters to selectively control SLB and TCS traffic. These dynamic filters,which take effect immediately without requiring a reboot,match on source and destination IP address,network mask,and TCP/UDP port information. t Overflow Protection In the event that the local servers exceed their maximum capacity,foundry s Internet traffic management systems can load balance the subsequent requests to remote server farms. t Massive Server Farms ServerIronXL supports up to 24 10/100 ports and 2 Gigabit ports,serveriron 100 Series offers 3 models with Gigabit or Fast Ethernet copper or fiber ports, ServerIron 800 supports up to /100BaseTX ports or 56 Gigabit ports, ServerIron 850 supports up to 112 Gigabit ports in a single chassis.with support for unlimited Virtual IP addresses,and up to 2048 real servers,serveriron switches provide the highest connectivity to server farms. t High Performance Web Hosting ServerIron s many-to-one load-balancing features enable network managers to define multiple VIPs and track service usage by VIP. With this capability,a single server and port number can load balance multiple web sites across a shared set of real servers. 4

5 t Slow Start To protect the server from a surging flow of traffic at startup,serveriron implements a unique slow-start service that allows real servers to gradually accept connections when the server comes up. This is especially useful for SLB implementations using least connections as the load balancing method.since most servers today cannot handle more than 2000 new connections per second,this feature helps ensure stability when bringing new servers online. t Cookie Insertion/Deletion This feature enables transparent application support by allowing the ServerIron to insert cookies into HTTP requests and responses. This allows client/server persistence even when the application itself does not support cookies. t Server Connection Offload The ServerIron increases server performance,availability,response time and security by offloading connection management from the servers.using persistent HTTP 1.0 and 1.1 connections to the server,the ServerIron sequentially streams large number of client-side connections to a few server-side connections.connection offload allows the servers to focus on missioncritical high-performance application service delivery.in addition to the performance gain,the servers also get protection against DoS, virus and worm attacks from hackers because the servers never directly interact with the clients for connection management. t Maximum Connections Used to protect servers from bogging down due to high amounts of Internet traffic,this feature allows administrators to limit the number of concurrent connections handled by a particular server and ensures that the traffic does not outpace the performance of the server. t Enterprise Application Support ServerIron can be deployed in many Enterprise environments where IP-based applications are used, including the popular applications like Oracle,BEA WebLogic,IBM WebSphere,PeopleSoft and Siebel. ServerIron supports custom features for load balancing and persistence for these applications. Additionally,the ServerIron support includes VoIP,where load balancing and fault tolerance can be provided for IP PBXs,as well as database environments,crm systems,and popular financial and production management systems. Server and Application Health Checks t Layer 3 Upon configuration,serveriron immediately and automatically health checks the server via ARP and ping to determine whether the server is ready for operation.if problems arise,serveriron can automatically take corrective action. t Layer 4 When the network manager binds an application (TCP/UDP port) on a real server to an application on a virtual server, ServerIron performs a Layer 4 health check,which the server must pass. This guarantees that clients do not hit dead servers. t Layer 7 With health checking enabled for a service (TCP /UDP port),serveriron can perform a Layer 7 application-specific health check immediately after successful completion of the Layer 4 health check.these include the following:http,dns,smtp, POP3,LDAP,NNTP,IMAP4,FTP,Telnet,RADIUS, and others. t Scripted Using scripted health checks,the ServerIron provides a flexible mechanism to check the health of applications using nonstandard ports.the switch inspects the health check response messages from the server for user-configured ASCII text that indicates application health. t Boolean Boolean health checks offer immense flexibility by allowing to decouple health checking from the ports bound to the Virtual IP. Multiple Boolean health checks may be combined and tied to the health of any port on any VIP. Load Balancing Method t Round Robin Assigns connections sequentially among servers in a logical community.round robin treats all servers as equal regardless of the number of connections or response time. t Least Connections Assigns a connection to the server with the least number of open connections.this option works well in server farms which have groups of servers with dissimilar performance capabilities. Least connections ensures adequate distribution and avoids server overload. t Weighted Percentage Allows managers to assign a performance weight to each server.use weighted percentage to ensure that those servers capable of processing connections faster receive the largest number of connections. t Response Time Directs requests to the server providing the best response time.response time measurements include the network latency and the response time for the application-level health checks. t Combined Response Time and Least Connections Directs requests to a server based on the server and application response time, and the number of active connections on the server. t Bandwidth and Weighted Bandwidth Load balances between servers based on the amount of bandwidth processed by each real server in a given duration of time.sampling interval and duration for bandwidth measurements are user configurable.using weighted bandwidth assigns greater weight to most recent samples,or to more potent servers to deliver the highest server performance and scalability. t Cookie Switching This feature directs HTTP requests to a server group based on information embedded in a cookie in the HTTP header.the next time the client requests information from the server,the cookie specifies which server group should handle the request.cookie switching ensures that a particular server group always handles requests from a particular client,even across sessions, thereby guaranteeing client persistence and a more satisfying end-user experience. t URL Switching ServerIron directs HTTP requests to a server or group of servers,using information contained inside the text of a URL string.url switching grants the network administrator greater control over the web site deployment to place different web content on different servers,thereby eliminating the constraint of duplicating all content across all load-balanced real servers. 5

6 t URL Hashing Using this feature enables ServerIron to examine information in the HTTP request (either the Cookie header or the URL string) and internally map this information to one of the real servers bound to the virtual server.this HTTP request and all future HTTP requests that contain this information then always go to the same real server. t URL Parsing Selects a real server or a group of servers by looking at the prefix or suffix of the URL or by applying a patternmatching expression to the entire URL.ServerIron supports up to 256 URL rules and imposes no limit on the URL length examined. t SSL Session ID Switching SSL (Secure Socket Layer) is a protocol for secure World Wide Web connections used to protect confidential information with server authentication,data encryption and message integrity.in order for SSL to work,all the SSL connections between a client and server must reach the same host. ServerIron ensures that all the traffic for an SSL transaction with a given SSL ID always goes to the same server.it is a must have feature for commerce,financial,and shopping-cart based web sites. t HTTP Header Switching Directs client requests to the appropriate group of servers by reading deep into the contents of the HTTP header.for example,using the language code embedded in the header,the ServerIron sends the client request to the group of servers providing content for a specific language.the HTTP protocol header has fields that carry valuable information that can assist in further optimizing server utilization and increasing server scalability. t XML Switching XML has emerged as a dominant standard for exchanging information between applications in the Internet.The ServerIron provides intelligent Layer 7 switching based on XML tags and attributes embedded in XML documents encapsulated in SOAP and HTTP messages.load balancing,persistence and content filtering are supported with XML switching rules. t Advanced Rules Engine The ServerIron supports the industry s most comprehensive rules engine that gives maximum flexibility to the customers in defining and applying Layer 4-7 switching rules to a rich set of application content.switching rules are not limited to one type of content or protocol,and can be combined for maximum flexibility and scalability. IronShield Security t Intelligent TCP and UDP Connection Rate Limiting ServerIron further protects server farms,firewalls and cache servers by controlling the rate of TCP and UDP connections on an application port basis.controlling the rate of new connections that each device receives ensures availability despite increased levels of activity due to DDoS attacks or surges in user access. t Network Address Translation (NAT) Using ServerIron s bi-directional NAT,network administrators can assign real servers internal non-routable private addresses to enhance security and conserve address space.serveriron also supports NAT functionality for environments where the real servers reside in different subnets. This translates to complete network design flexibility when laying out server farms. t Enhanced NAT Unique to Foundry Networks,ServerIron s generic NAT supports generic UDP,TCP,and ICMP applications as well as active and passive FTP,Windows Media,RealAudio, Real Video,RealMedia,and QuickTime protocols t Transaction Rate Limiting ServerIron protects real servers against malicious attacks from high-bandwidth users by allowing administrators to configure a threshold for the rate of incoming connections per user. t SYN-Guard ServerIron protects server farms against multiple forms of Denial of Service (DoS) attacks,such as TCP SYN attacks, by monitoring and tracking session flows.only valid connection requests are sent to the server.this capability combined with the ability to support over 15 million concurrent connections protects against the hijacking of server resources by malicious users and ensures connectivity for genuine clients.using the SYN-Cookie feature,the ServerIron forwards only completed client connections to the servers. t High Performance Access Control Lists (ACLs) and Extended ACLs By using ACLs,network administrators can restrict access to specific applications from a given address or subnet. Filters can be easily set to deny access to servers by any particular port or VIP address.for example,a network administrator can deny FTP traffic to a particular address.conversely,filters can be set to allow access by a subset of users or subnets. t Cisco-syntax ACLs ServerIron supports Cisco-syntax ACLs, which network administrators can easily cut/copy/ paste from their existing Cisco products to drop them right into the ServerIron configuration for the ultimate in portability and security. Session Persistence for Web Application Transactions t Internet IronWare maintains up to seven different methods of persistence to ensure that shopping-cart type applications and longrunning transactions proceed accurately.when combined with the ability to handle over 15 million concurrent sessions,serveriron provides the industry s best persistence methods to build highperformance networks for e-commerce. t Port Tracking Some web applications define a lead port and follower ports.serveriron ensures that all connections to the follower ports arrive at the same server as the lead port connection.for example,if SSL traffic follows HTTP traffic,the network administrator often defines the SSL port as the follower port to the HTTP port.this ensures that both types of traffic arrive at the same server for a given customer. t Sticky Ports ServerIron supports a wide variety of sticky connections,including those where applications require that the client request for additional TCP/UDP ports always go to the same real server,to the server using arbitrary port numbers,or to the server using sequential TCP/UDP ports. 6

7 t Additional Persistence Methodologies ServerIron supports many other types of persistence based on a large range of user programmable options,including Source IP/VIP/Port,Source IP/VIP,and SSL Session ID. t Mega Proxy Server Persistence Network managers can configure ServerIron to treat a range of source IP addresses as a single source to solve the persistence problem caused by certain mega proxy sites in the Internet. t Comprehensive Session Persistence ServerIron expands upon simple cookie-based switching by including support for Source IP based persistence.when configured for cookie-based persistence, ServerIron uses Source IP-based session persistence if there is no cookie present.this provides a superior level of session persistence over other vendor implementations. High Availability Services t Remote Backup Servers If no local servers or applications are available,serveriron sends client requests to remote servers.the remote server can be another server farm managed by another ServerIron or just another group of real servers.by defining multiple remote servers,serveriron will load balance the traffic among them using the selected load balancing method. t HTTP Redirect ServerIron can also use HTTP redirect to send traffic to remote servers if the requested application is not available on the local server farm. t Active/Standby When deployed in active-standby mode,the standby ServerIron will assume control and preserve the state of existing sessions in the event the primary load-balancing device fails. Configuration common to the two ServerIron switches can be automatically synchronized to avoid manual replication. t Active/Active When deployed in active-active mode,both ServerIron switches work simultaneously and provide a backup for each other while supporting stateful fail-over.configuration common to the two ServerIron switches can be automatically synchronized to avoid manual replication. t Quality of Service Network administrators can prioritize traffic based on ports,mac,vlan,and 802.1p attributes,as well as by service port and application type;for example,serveriron can grant priority to HTTP traffic over FTP. t Redundant Power Supplies ServerIronXL supports an optional built-in redundant power supply and ServerIron 800/850 support multiple (up to three additional) hot-swappable power supply options.serveriron 100,400 and 450 support dual hot-swappable power supplies. Ease Server Farm Management t Mix and Match Servers ServerIron increases network design flexibility and investment protection for existing resources by allowing for application distribution on different servers based on performance requirements,with dynamic adjustment and without interruption of service. t Graceful Shutdown ServerIron allows you to gracefully remove a server from the load balancing rotation without disrupting any existing session.this increases site stability when upgrading or repairing servers. t SNMP Reporting ServerIron reports SNMP traps and events to the specified trap receiver and can send those management messages to up to six different Syslog servers. Client 7 ServerIron B Denver New York Local 6 DNS 5 1 Round Trip Time Proximity and Load Conditions DNS Request/ Response San Jose 1. San Jose 2. New York ServerIron A 4 1. New York 2. San Jose Authoritative DNS Disaster Recovery and Global Server Load Balancing 2 t Figure 3 ServerIron redirects client traffic globally by site availability, site load, and site response time. ServerIron also measures client/ server proximity as defined by round trip delay and geographic location. All these features can work in conjunction with the network s existing DNS servers and results in minimizing network disruption when implementing GSLB. ServerIron continually monitors the sites to detect any changes in servers or services due to varying health and traffic conditions. Configurable site load thresholds enable network administrators to fine tune the health checking parameters to best suit the site s server and service capabilities.[see Figure 3] FlashBack, a unique Foundry Internet traffic management feature, measures response time between the authoritative DNS site and each data center.serveriron actually computes proximity based on the round trip time between the different global sites and uses these measurements as a benchmark to determine site responsiveness and the site s range to the client. In addition,serveriron uses geographic site selection to keep the requests within continental domains. ServerIron constantly monitors application traffic to create a knowledge base that enables a more intelligent GSLB methodology, powering smarter site selection criteria. ServerIron handles server farm outages or overloads even after the DNS lookup by automatically triggering HTTP redirection or implementing remote server load balancing.serveriron GSLB provides the following: 7 3

8 t Acts as a DNS proxy to transparently intercept and modify the DNS responses,thereby directing customers to the best site. t Handles server farm outage or overload after the DNS lookup by HTTP redirect or remote server load balancing. t Leverages the existing DNS server and minimizes disruption to the existing DNS environment. t Provides continuous site monitoring to detect changes in site health conditions. t Allows the network administrator to tune individual site load thresholds through configurable settings. t Monitors and selects sites based on FlashBack speed,which measures performance using site,server and application responsiveness. t Adds an evolutionary knowledge based in the global server load balancer that enables smarter site selection as more clients access the site. t Grants the network administrator the ability to tune ServerIron settings and ensure that minimal differences in various site metrics do not affect site selection. Foundry offers another unique Internet application management feature called Global IP. Working alongside Foundry Layer 3 switches (BigIron and NetIron ) and powered by unique VIP health checking algorithms, Global IP injects routes to client application services based on regional data center server-farm health and provides GSLB capability without relying on the DNS protocol.this enables ISPs and enterprises to instantaneously build networking infrastructures on a global basis and offer ready-to-go differentiated services to customers for multi-site deployments. Cache Static Content t Figure 4 Dynamic Content Web Server Farm Web Server Farm ServerIron switches provide the industry s most powerful content-aware cache switching features to build intelligent content networks that route traffic based on content rather than just IP addresses.the ServerIron TCS application includes the following content-switching features: t Intelligent load balancing of caches to eliminate content duplication, increase cache-hit ratio,and improve the Internet response time. t Accelerate delivery of dynamic content and optimize the cache utilization by bypassing the caches automatically for dynamic content. t Specify content-based rules to determine what content should be cached. t Organize caches into logical groups that serve different content to provide differentiated service offerings to content providers. Transparent Cache Switching ServerIron switches improve Internet response time and decrease WAN access costs by redirecting web traffic destined for remote Internet hosts to local cache servers. Foundry s Transparent Cache Switching (TCS) can be used with any cache server that supports transparent redirection, including those from leading vendors such as Blue Coat, Cobalt, Compaq, Dell, Inktomi (a Yahoo company),network Appliance,and Novell. Foundry s TCS offers network managers a resilient web caching solution that significantly simplifies administration. Unlike proxy server solutions that require manual configuration of each client s browser,serveriron transparently intercepts and switches HTTP client requests to an available cache server without reconfiguring the client s browser. Network administrators can configure the device to switch traffic based on source and destination IP address.[see Figure 4] 8

9 Technical and Physical Specifications Load Balancing Methods Least connections Response time Response time + least connections Round robin Weighted distribution Bandwidth and Weighted Bandwidth Layer 2 Switching Capabilities 32,000 MAC addresses 802.1d Spanning Tree Protocol 802.1p prioritization Policy-based VLANs Port-based VLANs Layer 3 protocol VLANs Layer 3 protocol and subnet VLANs 802.1q VLAN tagging Protocol Support TCP UDP SSL FTP Telnet SMTP HTTP IMAP4 LDAP NNTP POP3 DNS BootP TFTP SNMP VRRP/VRRPe IPSec RADIUS VoIP Standards Compliance 802.3,10BaseT 802.3u 100BaseTX, 100BaseFX 802.3z 1000BaseSX 802.3z 1000BaseLX 802.3x Flow Control 802.1q VLAN Tagging 802.1d Bridging Ethernet Like MIB Repeater MIB Ethernet Interface MIB SNMP V1 SNMP MIB II Network Management Integrated Command Line Interface SSH Web-based GUI Telnet SNMP RMON IronView Network Manager (INM) HP OpenView Warranty 1 year hardware 90 days software Upgrades to higher levels available Mounting Options 19" Universal EIA (telco) Rack Tabletop ServerIronXL ServerIron 100 ServerIron 400/450 ServerIron 800/850 Series Concurrent sessions 1,000,000 5,000,000 15,000,000 15,000,000 Throughput 2 Gbps 10 Gbps 56 Gbps 56 Gbps Switching capacity 4.4 Gbps 20 Gbps 128 Gbps 256 Gbps Packet forwarding rate 3,000,000 pps 48,000,000 pps 48,000,000 pps 84,000,000 pps Number of Virtual IP addresses Unlimited Unlimited Unlimited Unlimited Number of real servers 1,024 2,048 2,048 2,048 Number of 10/100 ports Number of Gigabit ports Total number of ports Layer 3 switching capabilities Supports servers OSPF,RIPv2,Supports OSPF,RIPv2,Supports OSPF,RIPv2,Supports on different subnets servers on different servers on different servers on different from that of Virtual subnets from that of subnets from that of subnets from that of IP address Virtual IP address Virtual IP address Virtual IP address Physical dimensions 2.75" h x 17.5" 8.75" h x 17.5" 8.75" h x 17.5" 20.75" h x 17.5" w x 16.75" d w x15" d w x 15" d w x15.25" d (6.7 cm x 44.5 (22.2 cm x 44.5 (22.2 cm x 44.5 (52.7 cm x 44.5 cm x 42.2 cm) cm x 38.1 cm) cm x 38.1 cm) cm x 38.7 cm) Weight lbs Not to exceed 60 lbs 60 lbs fully loaded 117 lbs fully loaded (8 10 kg) (29.9 kg) (29.9 kg) (43.7 kg) Power requirements 110v/220v Single (1) Power Supply: 4-slot Chassis with Single 8-slot Chassis with Single auto-sensing Input Voltage and Current (1) Power Supply: (1) Power Supply: Power Supply Rating Input Voltage and Current Input Voltage and Current 70 to -40 VDC:17A 100 Power Supply Rating -70 Power Supply Rating -70 to 120 VAC (auto-ranging): to -40 VDC:17A 100 to -40 VDC:17A 100 8A 200 to 240 VAC to 120 VAC (auto-ranging): to 120 VAC (auto- (auto-ranging):4a AC 8A 200 to 240 VAC ranging):8a 200 to 240 line frequency:47 63 Hz (auto-ranging):4a AC VAC (auto-ranging):4a line frequency: Hz AC line frequency:47 63 Hz 9

10 Ordering Information Part Number SI450 SI450-DC SI850 SI850-DC S450 S450-DC S450-S S850 S850-DC S850-S J-B48E J-BxG J-B16GC J-B16Gx WSM6 TRFWRKS-PREM LHA LHB E1MG-SX E1MTG-SX E1MG-LX E1MG-LHA E1MG-LHB E1MG-TX SI400 SI400-DC SI800 SI800-DC S400 S400-DC S400-S S800 S800-DC S800-S BxG-A B2G-A B4G-A B8G-A B8GC B24E-A B24FX WSM4 TRFWRKS-PREM LHA LHB Description ServerIron 450 and 850 Base Platforms 4-slot chassis equipped with WSM6 (Web Switching Management Module) that automatically aligns itself with up to three additional JetCore based line modules installed in the chassis for high-performance Layer 4-7 switching applications 4-slot 48V DC chassis equipped with WSM6 (Web Switching Management Module) that automatically aligns itself with up to three additional JetCore based line interface modules installed in the chassis for high-performance Layer 4-7 switching applications 8-slot chassis equipped with WSM6 (Web Switching Management Module) that automatically aligns itself with up to seven additional JetCore based line modules installed in the chassis for high-performance Layer 4-7 switching applications 8-slot 48V DC chassis equipped with WSM6 (Web Switching Management Module) that automatically aligns itself with up to seven additional JetCore based line modules installed in the chassis for high-performance Layer 4-7 switching applications 4-slot ServerIron 450 chassis with single AC power supply 4-slot ServerIron 450 chassis with single 48V DC power supply 4-slot ServerIron 450 SPARE chassis, NO Power supply 8-slot ServerIron 850 chassis with single AC power supply 8-slot ServerIron 850 chassis with single 48V DC power supply 8-slot ServerIron 850 SPARE chassis, NO Power supply ServerIron 450 and 850 Module Options 48-port 10/100Base-TX (RJ45) double-wide JetCore line Module 8-port 1000Base-X (mini-gbic) JetCore line Module 16-port 100/1000Base-T (RJ45) JetCore line Module 16-port 1000Base-X (mini-gbic) JetCore line Module ServerIron 450 and 850 System Options Web Switch Management Module (WSMM) II. Use this to order replacement or for inventory of a backup WSMM. Premium Layer 2 Switching, Layer 3 Routing,& Layer 4-7 Traffic management software ServerIron 450 and 850 Gigabit Optic Upgrades 1-port 1000Base-LongHaul (SC) series A Gigabit uplink for 70km maximum reach with 9 or 10µm SMF and minimum 10dB attenuation specify SX to LHx upgrade quantities 1-port 1000Base-LongHaul (SC) series B Gigabit uplink for 150km maximum reach with 9 or 10µm SMF and minimum 10dB attenuation specify SX to LHx upgrade quantities. ServerIron 450 and 850 Mini GBIC Options 1000Base-SX mini-gbic optic, MMF, LC connector 1000Base-SX mini-gbic optic, MMF, MTRJ connector 1000Base-LX mini-gbic optic, SMF, LC connector 1000Base-LHA mini-gbic optic, SMF, LC connector 1000Base-LHB mini-gbic optic, SMF, LC connector, 150km Maximum reach 1000BASE-TX Mini-GBIC Copper, RJ-45 Connector ServerIron 400 and 800 Base Platforms 4-slot chassis equipped with WSMM high-performance application switching module 4-slot chassis equipped with WSMM high-performance application switching module and 48V DC power 8-slot chassis equipped with WSMM high-performance application switching module 8-slot chassis equipped with WSMM high-performance application switching module and 48V DC power 4-slot ServerIron chassis with single AC power supply 4-slot ServerIron chassis with single 48V DC power supply 4-slot ServerIron SPARE chassis with NO power supply 8-slot ServerIron chassis with single AC power supply 8-slot ServerIron chassis with single 48V DC power supply 8-slot ServerIron SPARE chassis with NO power supply ServerIron 400 and 800 Module Options 8-port 1000Base-X (mini-gbic) ServerIron IronCore module 2-port 1000Base-SX (SC) for 50 or 62.5µm MMF ServerIron IronCore module 4-port 1000Base-SX (SC) for 50 or 62.5µm MMF ServerIron IronCore module 8-port 1000Base-SX (SC) for 50 or 62.5µm MMF ServerIron IronCore module 8-port 1000Base-T (RJ45) ServerIron IronCore module 24-port 10/100Base-TX (RJ45) ServerIron IronCore module 24-port 100Base-FX (MTRJ) for 50 or 62.5µm MMF ServerIron IronCore module ServerIron 400 and 800 System Options ServerIron 400/800 Web Switch Management Module.Use this to order replacement or for inventory of a backup Web Switch Management module. Premium Layer 2 Switching, Layer 3 Routing,& Layer 4-7 Traffic management software ServerIron 400 and 800 Gigabit Optic Upgrades 1-port 1000Base-LongHaul (SC) series A Gigabit uplink for 70km maximum reach with 9 or 10µm SMF and minimum 10dB attenuation specify SX to LHx upgrade quantities 1-port 1000Base-LongHaul (SC) series B Gigabit uplink for 150km maximum reach with 9 or 10µm SMF and minimum 10dB attenuation specify SX to LHx upgrade quantities. 10

11 E1MG-SX E1MTG-SX E1MG-LX E1MG-LHA E1MG-LHB E1MG-TX SI SI DC SI-100-8GC02F SI-100-8GC02F-DC SI-100-8G SI-100-8G-DC WSM4-100 SI-100-TW-PREM LHA LHB E1MG-SX E1MTG-SX E1MG-LX E1MG-LHA E1MG-LHB E1MG-TX FCSLB16 FCSLB24 FCSLB16-I FCSLB24-I FCSLB16DC FCSLB24AC U1GC U2GC RPS RPS-I RPSDC-FC F2100F F1GE F2GE FLX1GE FLX2GE FLXSXGE FLHA1G FLHA2G FLHB1G FLHB2G LHA LHB ServerIron 400 and 800 Mini GBIC Options 1000Base-SX mini-gbic optic, MMF, LC connector 1000Base-SX mini-gbic optic, MMF, MTRJ connector 1000Base-LX mini-gbic optic, SMF, LC connector 1000Base-LHA mini-gbic optic, SMF, LC connector 1000Base-LHB mini-gbic optic, SMF, LC connector, 150km Maximum reach 1000BASE-TX Mini-GBIC Copper, RJ-45 Connector ServerIron 100 Base Platforms 24-port 10/100Base-TX (RJ45) ServerIron IronCore module and 2 port 1000Base-SX (SC) for 50 or 62.5µm MMF ServerIron IronCore module (DC Power) 24-port 10/100Base-TX (RJ45) ServerIron IronCore module and 2 port 1000Base-SX (SC) for 50 or 62.5µm MMF ServerIron IronCore module (DC Power) 8-port 1000Base-T (RJ45) ServerIron IronCore module and 2-port 1000Base-SX (SC) for 50 or 62.5µm MMF ServerIron IronCore module 8-port 1000Base-T (RJ45) ServerIron IronCore module and 2-port 1000Base-SX (SC) for 50 or 62.5µm MMF ServerIron IronCore module (DC Power) 8-port 1000Base-X (mini-gbic) ServerIron IronCore module. GBICs required 8-port 1000Base-X (mini-gbic) ServerIron IronCore module. GBICs required (DC Power) ServerIron 100 System Options ServerIron 100 Web Switch Management Module. Use this to order replacement for the management module in SI-100 configurations. Enhanced version of Trafficworks IronWare for the SI 100 series that includes Global Server Load Balancing (GSLB) ServerIron 100 Gigabit Optic Upgrades 1-port 1000Base-LongHaul (SC) series A Gigabit uplink for 70km maximum reach with 9 or 10µm SMF and minimum 10dB attenuation specify SX to LHx upgrade quantities 1-port 1000Base-LongHaul (SC) series B Gigabit uplink for 150km maximum reach with 9 or 10µm SMF and minimum 10dB attenuation specify SX to LHx upgrade quantities. ServerIron 100 Mini GBIC Options 1000Base-SX mini-gbic optic, MMF, LC connector 1000Base-SX mini-gbic optic, MMF, MTRJ connector 1000Base-LX mini-gbic optic, SMF, LC connector 1000Base-LHA mini-gbic optic, SMF, LC connector 1000Base-LHB mini-gbic optic, SMF, LC connector, 150km Maximum reach 1000BASE-TX Mini-GBIC Copper, RJ-45 Connector ServerIronXL Base Platforms 16-port 10/100Base-TX (RJ45) ServerIron XL with one expansion slot 24-port 10/100Base-TX (RJ45) ServerIron XL with one expansion slot (International Orders Only) 16-port 10/100Base-TX (RJ45) ServerIron XL with one expansion slot (International Orders Only) 24-port 10/100Base-TX (RJ45) ServerIron XL with one expansion slot 16-port 10/100Base-TX (RJ45) ServerIron XL with one expansion slot and 48VDC power supply 24-port 10/100Base-TX (RJ45) ServerIron XL with one expansion slot and 48VDC power supply ServerIronXL System Options 1-port 1000Base-T (RJ45) copper Gigabit uplink 2-port 1000Base-T (RJ45) copper Gigabit uplink Redundant auto-switching v AC power supply for ServerIron XL 16/24 port only (International Orders Only) Redundant auto-switching v AC power supply for ServerIron XL 16/24 port only -48VDC power supply for ServerIron XL 16/24 only and is a factory configuration only 2-port 100Base-FX MMF (SC) uplink 1-port 1000Base-SX (SC) Gigabit uplink for 50 or 62.5 um MMF 2-port 1000Base-SX (SC) Gigabit uplink for 50 or 62.5 um MMF 1-port 1000Base-LX (SC) Gigabit uplink for 9 or 10 um SMF 2-port 1000Base-LX (SC) Gigabit uplink for 9 or 10 um SMF 2-port Gigabit uplink with 1-port 1000Base-SX (SC) and 1-port 1000Base-LX (SC) for 50 or 62.5 um MMF and 9 or 10 um SMF 1-port 1000Base-LogHaul (SC) series A Gigabit uplink for 70 km maximum reach with 9 or 10 um SMF and minimum 10 db attenuation 2-port 1000Base-LogHaul (SC) series A Gigabit uplink for 70 km maximum reach with 9 or 10 um SMF and minimum 10dB attenuation 1-port 1000Base-LongHaul (SC) series B Gigabit uplink for 150 km maximum reach with 9 or 10 um SMF and minimum 10dB attenuation 2-port 1000Base-LongHaul (SC) series B Gigabit uplink for 150 km maximum reach with 9 or 10 um SMF and minimum 10 db attenuation ServerIronXL GBIC Options 1-port 1000Base-LongHaul (SC) series A Gigabit uplink for 70 km maximum reach with 9 or 10 um SMF and minimum 10dB attenuation specify SX or LHx upgrade quantities 1-port 1000Base-LongHaul (SC) series B Gigabit uplink for 150 km maximum reach with 9 or 10 um SMF and minimum 10dB attenuation specify SX or LHx upgrade quantities Specifications subject to change without notice. 1

12 Foundry Networks, Inc. Corporate Headquarters 2100 Gold Street P.O. Box San Jose, CA U.S. and Canada Toll-free: TURBOLAN ( ) Tel: Fax: Although Foundry has attempted to provide accurate information in these materials, Foundry assumes no legal responsibility for the accuracy or completeness of the information.more specific information is available on request from Foundry.Please note that Foundry s product information does not constitute or contain any guarantee,warranty or legal binding representation,unless expressly identified as such in duly signed writing Foundry Networks,Inc.All Rights Reserved.Foundry Networks,BigIron,FastIron,NetIron,ServerIron,IronPoint, Terathon,JetCore,EdgeIron,IronView,JetScope,IronShield,MetroLink,IronWare,TrafficWorks,Power of Performance and the Iron family of marks are trademarks or registered trademarks of Foundry Networks,Inc.in the United States and other countries.all others are trademarks of their respective owners. DS-004/Rev.5/