Technical overview
HP ProCurve Switch 5400zl, 3500yl, and
6200yl Series
Table of contents
Executive summary .............................................................................................. 4
Introduction .......................................................................................................... 4
Product positioning .............................................................................................. 5
Overview .......................................................................................................... 5
HP ProCurve Switch 5400z and 3500yl Series ................................................ 6
HP ProCurve Switch 6200yl-24G-mGBIC ...................................................... 6
ProVision ASIC Architecture .............................................................................. 6
Inside the ProVision ASIC Architecture .......................................................... 7
Classification and Lookup ............................................................................ 7
Policy Enforcement Engine .......................................................................... 8
Network switch engine programmability ...................................................... 8
Fabric Interface ............................................................................................. 8
ProVision ASIC CPU ................................................................................... 9
Fabric ASIC .................................................................................................. 9
Management subsystem ................................................................................... 9
Advanced capabilities of the product family .................................................... 9
Versatile Intelligent Port (VIP) ..................................................................... 9
ProVision hardware resiliency ...................................................................... 9
HP ProCurve Switch 5400zl Series ................................................................... 10
5400zl chassis layout ...................................................................................... 11
5412zl chassis layout ...................................................................................... 12
Power supplies................................................................................................ 13
Fan tray ........................................................................................................... 14
zl modules ...................................................................................................... 15
Management module .................................................................................. 15
Line interface modules ............................................................................... 15
Power supply configurations .......................................................................... 16

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  • Page 1

    Management subsystem ................... 9 Advanced capabilities of the product family ............ 9 Versatile Intelligent Port (VIP) ..............9 ProVision hardware resiliency ..............9 HP ProCurve Switch 5400zl Series ..............10 5400zl chassis layout ..................11 5412zl chassis layout ..................12 Power supplies....................13 Fan tray ......................

  • Page 2: Table Of Contents

    Specifications ....................18 Management module .................. 18 Line interface modules ................19 HP ProCurve Switch 3500yl Series ..............24 Specifications ....................26 Additional line interface module ..............26 HP ProCurve Switch 6200yl ................27 Additional line interface module ..............28 Overview of features and benefits ..............

  • Page 3: Table Of Contents

    Appendix J: Server-to-Switch Distributed Trunking ......... 57 Limitations/Restrictions ................. 57 Appendix K: Troubleshooting ................58 LED status indicators for 5400zl series ............58 LED status indicators for 3500yl and 6200yl series ........61 Part numbers and Field Replaceable Units ............. 63...

  • Page 4: Executive Summary, Introduction

    Executive summary HP ProCurve Networking has an extensive line of networking products built around the concept of the HP ProCurve Adaptive EDGE Architecture™ (AEA) that provides the security, mobility, and convergence capabilities that businesses demand while giving IT administrators the ability to adapt to the changing needs of their organizations and control their infrastructure centrally.

  • Page 5: Product Positioning, Overview

    The modular structure of both the HP ProCurve Switch 8200zl and 5400zl Series gives you the flexibility to tailor the switch to match your topology’s requirements. The HP ProCurve Switch 6200yl, an advanced Layer 3 stackable, is designed to be deployed as an aggregator of traffic from the edge to the core of the network.

  • Page 6: Hp Procurve Switch 6200yl-24g-mgbic, Provision Asic Architecture

    For some customers, the Layer 3 features and redundant power supply features of the HP ProCurve Switch 5400zl series also make it well-suited as a distribution switch. New to the 5400zl and 3500yl series is the optional deployment of a Premium License feature group as opposed to the standard offerings of the Intelligent Edge feature group.

  • Page 7: Inside The Provision Asic Architecture, Classification And Lookup

    Figure 1. ProVision ASIC Architecture for HP ProCurve Switch 5406zl The diagram above illustrates an example of the logical interconnection of the ProVision ASICs on the 6-slot 5406zl series switch. All of the key elements are connected to the active backplane. The active backplane contains the switch fabric and distributes power to all modules.

  • Page 8: Policy Enforcement Engine, Network Switch Engine Programmability, Fabric Interface

    Policy Enforcement Engine The ProVision ASICs on each line interface module contain the Policy Enforcement Engine. This engine provides fast packet classification to be applied to ACLs, QoS, Rate Limiting, and some other features through an onboard TCAM. Some of the variables that can be used include source and destination IP addresses (can follow specific users), TCP/UDP port numbers, and ranges (apply ACLs to an application that uses fixed port numbers or ranges).

  • Page 9: Provision Asic Cpu, Fabric Asic, Management Subsystem, Advanced Capabilities Of The Product Family

    LEDs and pushbuttons, a console interface, and other system support circuitry to interface and control each line interface module. In the case of the 5400zl series switch, the management subsystem is on a module that is removable/upgradable. Each 5400zl series chassis requires one management module to function.

  • Page 10: Hp Procurve Switch 5400zl Series

    HP ProCurve Switch 5400zl Series The HP ProCurve Switch 5400zl series is a high-end edge switch. This switch series has been designed to be a feature-oriented high-performance wiring closet switch. It can also be used as a low-to-medium distribution switch when used with Premium License, described later in this document.

  • Page 11: Zl Chassis Layout

    ProCurve Switch 5400zl Chassis ProCurve Switch 5400zl Bundles ProCurve Switch 5406zl ProCurve Switch 5406zl-48G (J8699A) (J8697A) ProCurve Switch 5412zl ProCurve Switch 5412zl-96G (J8698A) (J8700A) Figure 2. HP ProCurve Switch 5400zl Chassis and Bundles The HP ProCurve Switch 5406zl-48G Intelligent Edge (J8699A) and 5412zl-96G Intelligent Edge (J8700A) are preconfigured bundles that offer a pretested environment and a lower cost starter switch to which additional modules can be added.

  • Page 12

    However, when the management module is removed, all ports lose communication and the system will be powered down. Figure 3. HP ProCurve Switch 5406zl chassis layout Figure 4. HP ProCurve Switch 5412zl chassis layout...

  • Page 13: Power Supplies

    As indicated in the following figure, the internal power supply provides both system power as well as PoE. The HP ProCurve Switch 5400zl series, as well as the 3500yl series, can power any device that adheres to the IEEE 802.1af standard. In addition, devices using pre-standard Cisco PoE power can also be powered.

  • Page 14: Fan Tray

    HP ProCurve 620 Redundant/External Power Supply. Fan tray The fan tray assembly contains the cooling fans for the interior of the 5400zl series chassis, but excludes the chassis power supplies, which have their own internal cooling fans. The 5406zl fan tray consists of 2 variable-speed fans, and the 5412zl fan tray consists of 4 variable-speed fans.

  • Page 15: Zl Modules, Management Module, Line Interface Modules

    Management module All configurations of the HP ProCurve Switch 5400zl series include a single management module that oversees the operation of the line interface modules and switch fabric. The management module incorporates an RS-232 serial port for local management and configuration. To connect to the console, a standard null modem cable is used.

  • Page 16: Power Supply Configurations

    1+1 power supply redundancy implies providing twice the minimum number of supplies required to power the system. The table below shows the HP ProCurve Switch 5400zl series minimum and maximum internal power supply configurations, as well as internal combined power with external power shelf configurations.

  • Page 17

    5412zl Table 1. Minimum and maximum power supply support When deciding on which and how many power supplies to configure for a 5400zl series switch, the following criteria can be used to guide the decision: • How much power will be required for each PoE port, full (15.4 watts) or phone (8 watts) power? •...

  • Page 18: Specifications, Management Module

    Note that two 875W internal power supplies cannot supply sufficient PoE power to a 5406zl switch fully populated with 24-port line interface modules (144 ports). Two 1500W power supplies can be used to supply full PoE power (15.4 watts) to 116 ports. Number of PoE ports Number of PoE ports Total...

  • Page 19: Line Interface Modules

    Figure 9. HP ProCurve Switch 5406zl management module block diagram Processor The CPU processor is a Freescale PowerPC 8540 operating at 667 MHz. Memory SDRAM Synchronous Dynamic RAM is used for the storage of uncompressed executable code and data structures. The SDRAM consists of a 256 MB DDR-1 DIMM in the base module, expandable up to 1 GB.

  • Page 20

    HP ProCurve Switch 5400zl 24p 10/100/1000 PoE Module (J8702A) Description This line interface module has 24 10/100/1000Base-T ports that provide Gigabit-over-copper connectivity for wiring closets, enabling high-density Gigabit connectivity to the desktop over Category 5 copper cabling. Each port is capable of providing IEEE 802.3af compliant Power over Ethernet (PoE) to power IP phones, wireless access points, and other devices.

  • Page 21

    • J4860C HP ProCurve Gigabit-LH-LC Mini-GBIC • J8177C HP ProCurve Gigabit 1000Base-T Mini-GBIC • J9142B HP ProCurve 1000-BX-D SFP-LC Mini-GBIC • J9143B HP ProCurve 1000-BX-U SFP-LC Mini-GBIC • J9099B HP ProCurve 100-BX-D SFP-LC Transceiver • J9100B HP ProCurve 100-BX-U SFP-LC Transceiver •...

  • Page 22

    Transceivers supported (ordered separately) • J8436A HP ProCurve 10-GbE X2-SC SR Optic • J8437A HP ProCurve 10-GbE X2-SC LR Optic • J8438A HP ProCurve 10-GbE X2-SC ER Optic • J8440A HP ProCurve 10-GbE X2-CX4 Transceiver • J9144A HP ProCurve 10-GbE X2-SC LRM Optic HP ProCurve Switch 5400zl 4-port 10-GbE CX4 Module (J8708A) Description This line interface module has 4 10-GbE CX4 ports.

  • Page 23

    services, enabling a resilient, highly secure, mobile multi-service network. Each “WES” Module can control up to 156 HP ProCurve Radio Ports (light access points) to provide Layer 2/3 seamless roaming and a secure mobility environment. Wireless sFlow support provides leveraged network management for both wired and wireless connections.

  • Page 24: Hp Procurve Switch 3500yl Series

    HP ProCurve Switch 3500yl Series The HP ProCurve Switch 3500yl series is another of the most advanced intelligent edge switches in the HP ProCurve Networking product line. The 3500yl series includes 24-port and 48-port stackables. The foundation of these switches is a purpose-built, programmable ProVision ASIC that allows the most demanding networking features, such as QoS and security, to be implemented in a scalable yet granular fashion.

  • Page 25

    The table below shows examples of the maximum number of PoE ports that can be supported by the two 3500yl switch models. One column shows the maximum number of PoE ports at full power (Class 0 – 15.4 watts) and the other column shows the maximum number of PoE ports at typical phone power (8 watts).

  • Page 26: Additional Line Interface Module, Specifications

    Specifications Processor The CPU processor is a Freescale PowerPC 8540 operating at 667 MHz. Memory SDRAM Synchronous Dynamic RAM is used for the storage of uncompressed executable code and data structures. The SDRAM consists of a 256 MB DDR-1 DIMM in the base module, expandable up to 1 GB.

  • Page 27: Hp Procurve Switch 6200yl

    HP ProCurve Switch yl 10-GbE 2p CX4 + 2p X2 Module (J8694A) Description This 10-GbE line interface module has two fixed CX4 ports and two X2 slots and is supported in both models of the HP ProCurve Switch 3500yl series and also the HP ProCurve Switch 6200yl-24G- mGBIC.

  • Page 28

    HP ProCurve Switch 6200yl-24G-mGBIC (J8992A) Figure 11. HP ProCurve Switch 6200yl Processor The CPU processor is a Freescale PowerPC 8540 operating at 667 MHz. Memory SDRAM Synchronous Dynamic RAM is used for the storage of uncompressed executable code and data structures.

  • Page 29: Overview Of Features And Benefits, Performance, Security Features

    Overview of features and benefits The HP ProCurve Switch 5400zl, 3500yl, and 6200yl series use the same software image base. For the HP ProCurve Switch 6200yl, the Premium License feature group is standard. For the HP ProCurve Switch 5400zl and 3500yl series, you have the choice of using the Intelligent Edge feature group or the Premium License feature group for an additional fee.

  • Page 30: Qos Functions, Convergence

    • Identity-driven ACL: enables implementation of a highly granular and flexible access security policy specific to each authenticated network user • Port security: prevents unauthorized access using MAC address lockdown • MAC address lockout: prevents configured particular MAC addresses from connecting to the network •...

  • Page 31: Layer 2 Switching, Bridging Protocols, Routing Protocols, Ipv6, Multicast Protocols, High Availability And Redundancy

    • Management module is removable/upgradable: The switch does not have to be powered off to remove a management module from a 5400zl series. However, when the management module is removed, all ports will lose communication and the system will be powered down.

  • Page 32: Management, Diagnostics, Future-proofing, Low Cost Of Ownership

    • The base power supply for the 5400zl series provides sufficient power for PoE on some ports. Power supplies can be added in order to provide PoE on all copper ports.

  • Page 33: Standards And Protocols, Device Management, General Protocols, Ip Multicast

    Standards and protocols Device management RFC 1591 DNS (client) HTML and telnet management General protocols IEEE 802.1ad Q-in-Q (Premium License) IEEE 802.1D MAC Bridges IEEE 802.1p Priority IEEE 802.1Q VLANs IEEE 802.1s Multiple Spanning Trees IEEE 802.1v VLAN Classification by Protocol and Port IEEE 802.1w Rapid Reconfiguration of Spanning Tree IEEE 802.3ad Link Aggregation Control Protocol (LACP) IEEE 802.3af Power over Ethernet...

  • Page 34: Ipv6, Mibs, Network Management, Ospf

    IPv6 RFC 1981 IPv6 Path MTU Discovery RFC 2460 IPv6 Specification RFC 2461 IPv6 Neighbor Discovery RFC 2462 IPv6 Stateless Address Auto-configuration RFC 2463 ICMPv6 RFC 2710 Multicast Listener Discovery (MLD) for IPv6 RFC 2925 Remote Operations MIB (Ping only) RFC 3019 MLDv1 MIB RFC 3315 DHCPv6 (client only) RFC 3513 IPv6 Addressing Architecture...

  • Page 35: Qos/cos, Security, Performance And Capacity, Capacity And Performance Features Comparison

    QoS/Cos RFC 2474 DiffServ Precedence, including 8 queues/port RFC 2597 DiffServ Assured Forwarding (AF) RFC 2598 DiffServ Expedited Forwarding (EF) Security IEEE 802.1X Port Based Network Access Control RFC 1492 TACACS+ RFC 2138 RADIUS Authentication RFC 2866 RADIUS Accounting Secure Sockets Layer (SSL) SSHv1/SSHv2 Secure Shell Performance and capacity Capacity and performance features comparison...

  • Page 36: Per-port Buffer Sizes, Routing And Forwarding Tables

    Per-port buffer sizes The HP ProCurve Switch 5400zl, 3500yl, and 6200yl series have eight hardware queues to which prioritized traffic can be assigned. Software can designate a certain amount of output memory buffer for each queue to minimize the impact from events that exceed line rate such as bursty network traffic. Users can choose to configure the number of queues—2, 4, or 8—so that they can optimize the amount of memory buffer per queue for their applications.

  • Page 37: Optimizing The 10-gbe Port Configuration

    Optimizing the 10-GbE port configuration The 10-GbE modules (J8707A, J8708A, and J8694A) used in the HP ProCurve Switch 3500yl, 5400zl, and 6200yl series are designed to deliver full 10 Gbps wire-speed to each port, where either one or two ports are in a linked state with another device. When three or four 10-GbE ports are in a linked state, the module supports an aggregate bandwidth of 28.8 Gbps across the linked ports.

  • Page 38

    Figure 13. Approach for guaranteeing 10 Gbps on a specific port Connection choices are also important where equally balanced bandwidth is needed, such as in a Virtual Router Redundancy Protocol (VRRP) application. This scenario is illustrated in the next figure. Figure 14.

  • Page 39: Throughput And Latency Performance Data

    Throughput and latency performance data The following three tables describe the performance capabilities of the 10 Gbps, 1 Gbps, and 100 Mbps line interface module ports of the HP ProCurve Switch 5400zl, 3500yl, and 6200yl series. Over a range of packet sizes from 64 bytes to 1518 bytes, the performance levels achieved are described in terms of the following metrics: •...

  • Page 40

    Packets per 10 Gbps Throughput % Latency (FIFO) Latency (LIFO) second Full mesh % drops Packet L2/L3 L2/L3 size (µsecs) (µsecs) (µsecs) (µsecs) 14880952 1.95 2.05 8445946 2.01 2.11 4528986 2.31 2.31 2349624 2.62 2.72 1024 1197318 3.73 3.73 1280 961538 4.13 4.23...

  • Page 41: Gigabit Performance Traffic Patterns, Throughput Test, Latency Measurements

    The latency figures for the HP ProCurve Switch 5400zl series are consistently low. Latencies this low will not be a factor in general network operation, even with streaming video or VoIP applications. The...

  • Page 42: Hp Procurve Warranty And Support, Industry-leading Warranty

    HP ProCurve warranty and support Industry-leading warranty HP ProCurve Networking products come with warranties you would expect from HP. • HP ProCurve Lifetime Warranty ♦ features next-business-day advance replacement • HP ProCurve warranty includes coverage for the fans and power supplies •...

  • Page 43: Appendix A: Premium License, Intelligent Edge And Premium License

    Appendix A: Premium License This section of the Technical Overview provides additional background information about the HP ProCurve Switch 5400zl, 3500yl, and 6200yl series products. Intelligent Edge and Premium License Introduced with the HP ProCurve Switch 5400zl and 3500yl series is the option of implementing Intelligent Edge or Premium License.

  • Page 44

    Two methods for managing Premium Edge licensing on ProCurve Switch 5400zl and 3500yl series • Manually using ProCurve web portal and CLI commands – Good for small number of licenses, requires manager level access • ProCurve Manager (PCM) – Convenient for may licenses, handles most aspects –...

  • Page 45: Appendix B: Policy Enforcement Engine

    On a subsequent window, you select premium-edge for the Feature Group and type the registration ID you received with the purchase of the Premium License. The registration ID is found on a plastic laminated card that is shipped with the HP ProCurve switch. After you agree to the terms of the License Agreement, the wizard will display the status of the license installation process.

  • Page 46: Policy Enforcement Engine Benefits, Wire-speed Performance For Acls

    Policy Enforcement Engine benefits The Policy Enforcement Engine has several benefits: • Granular policy enforcement The initial software release on these products takes advantage of a subset of the full Policy Enforcement Engine capabilities, which will provide a common front end for the user interface to ACLs, QoS, Rate-Limiting, and Guaranteed Minimum Bandwidth controls.

  • Page 47: Appendix C: Power Over Ethernet, Poe Device Types

    Appendix C: Power over Ethernet The IEEE 802.3af standard for Power over Ethernet (PoE) enables Ethernet switches to provide power, as well as network signals, for compliant devices over existing CAT-5 cable. Implementing devices that support integrated PoE, such as the HP ProCurve Switch 5400zl and 3500yl series, has several benefits: •...

  • Page 48: Power Delivery Options, Poe Negotiation, Additional Poe Power—external Supplies

    Power delivery options The 802.3af standard provides two options for providing power over CAT 5 Ethernet cable. They are: • Unused pairs—This option takes advantage of the fact that 10Base-T and 100Base-TX signals use only two of the four twisted pairs in the cable. In this option, the pins on pairs 1/2 and 3/6 are used for data, and the pins on pairs 4/5 and 7/8 are used for power.

  • Page 49: Support For Pre-802.3af Standard Powered Devices, Appendix D: Pim Sparse Mode

    Support for pre-802.3af standard powered devices The HP ProCurve Switch 5400zl and 3500yl series also support a number of pre-802.3af standard powered devices. These include: • Cisco 7902G, 7905G, 7912G, 7940G, 7960G IP Phones • Cisco Aironet 350, 1100, 1200, 1230AG Access Points The Cisco pre-802.3af standard IP phones require the use of a straight-through cable for connectivity to the PSE.

  • Page 50: Appendix E: Lldp-med

    In order to receive a multicast stream, routers explicitly join the stream by sending join messages to the RP. This join message is analogous to a unicast router following a default route to a destination. Effectively, the function of the RP is a place for multicast sources and receivers to meet. PIM-SM is extremely memory and CPU efficient.

  • Page 51: Appendix F: Virus Throttle Security

    LLDP-MED endpoint devices are located at the network edge and communicate using the LLDP-MED framework. Any LLDP-MED endpoint device belongs to one of the following three classes: • Class 1 (Generic Endpoint Devices): These devices offer the basic LLDP discovery services, network policy advertisement (VLAN ID, Layer 2/802.1p priority, and Layer 3/DSCP priority), and PoE management.

  • Page 52

    Virus Throttle works by intercepting IP connection requests, that is, connections in which the source subnet and destination address are different. The Virus Throttle tracks the number of recently made connections. If a new, intercepted request is to a destination to which a connection was recently made, the request is processed as normal.

  • Page 53: Response Options, Sensitivity, Connection-rate Acl, Appendix G: Vrrp

    Response options The response behavior of connection-rate filtering can be adjusted by using filtering options. When a worm-like behavior is detected, the connection-rate filter can respond to the threats on the port in the following ways: • Notify only of potential attack: While the apparent attack continues, the switch generates an Event Log notice identifying the offending host source address (SA) and (if a trap receiver is configured on the switch) a similar SNMP trap notice.

  • Page 54: Xrrp Support On 5300xl Switch

    The VRRP Master router periodically sends advertisements to a reserved multicast group address. The VRRP Backup routers listen for advertisements and one of the backups will assume the Master role, if necessary. A VRRP router can support many virtual router instances, each with a unique VRID/IP address combination.

  • Page 55: Appendix H: Ospf Equal Cost Multipath

    Appendix H: OSPF Equal Cost Multipath In Open Shortest Path First (OSPF), if different subnet destinations in a network are reachable through multiple equal-cost paths, the router chooses a single path for each destination subnet. (A trunk is considered a path even though a trunk consists of multiple links). With OSPF Equal Cost Multipath (OSPF-ECMP), routers support optional load-sharing across redundant paths to the same subnet.

  • Page 56: Appendix I: Advanced Classifier-based Qos

    Appendix I: Advanced Classifier-Based QoS Released with software version K.14, the Advanced Classifier-Based QoS provides: • A finer granularity than globally configured features for classifying network traffic (IPv4 or IPv6) into classes that can be used in cross-feature software configurations •...

  • Page 57: Appendix J: Server-to-switch Distributed Trunking, Limitations/restrictions

    Appendix J: Server-to-Switch Distributed Trunking Distributed Trunking is a link aggregation technique where two or more links across two switches are aggregated together to form a trunk. This feature overcomes the limitation in IEEE 802.3ad that specifies all links of a trunk have to be from a single switch. Distributed Trunking improves resiliency and load balancing in a layer 2 network.

  • Page 58: Appendix K: Troubleshooting, Led Status Indicators For 5400zl Series

    DT switches. Appendix K: Troubleshooting LED status indicators for 5400zl series The HP ProCurve Switch 5400zl series management module has various LED status indicators that are described in the following table. State...

  • Page 59

    State Indication Blinking If DIMM, Fault, and Self Test LEDs are blinking, DIMM failed (orange) self-test. If DIMM and Fault LEDs are blinking, an operational fault has occurred. If blinking at a fast rate, an operational alert occurred and is unresolved.

  • Page 60

    • If the Port LED is blinking, the port is operating at 100 Mbps. • If the Port LED is on continuously, the port is operating at 1000 Mbps. Usr (green) Reserved for future development. Table 10. LED status indicators for HP ProCurve Switch 5400zl series—management module...

  • Page 61: Led Status Indicators For 3500yl And 6200yl Series

    The LED status indicators for the HP ProCurve Switch 5400zl series switch modules are described in the following table. State Indication Link On (green) Indicates the port is enabled and receiving a link beat signal (for the twisted-pair ports), or a strong enough light level (for...

  • Page 62

    State Indication Temp On (green) Internal temperature is normal. Blinking (orange) An over temperature condition has been detected. Fan Status On (green) Normal operation. Blinking (orange) One of the unit’s fans has failed. The switch Fault LED will be blinking simultaneously. PoE Status On (green) If any ports are supplying PoE power.

  • Page 63: Part Numbers And Field Replaceable Units

    875 W Power Supply 5184-1894 Console Cable 5069-8561 Two-Post Rack Mounting Kit for 5406zl 5069-8562 Two-Post Rack Mounting Kit for 5412zl 356578-B21 Four-Post Rack Rail Mounting Kit for 5406zl and 5412zl Table 13. Part numbers and FRUs for HP ProCurve Switch 5400zl series...

  • Page 64

    The switches normally ship with a rack-mounting kit that allows installation into a two-post, 19-inch data communications rack. If installation into a 10K four-post 19-inch rack or a four-post rack meeting the standard EIA unit of measurement is desired, a rack-mounting kit is available providing rails that give sturdy support for the switch along its entire length.

  • Page 65: For More Information

    The table below lists the part numbers of power cords that can be used with the HP ProCurve Switch 5400zl, 3500yl, and 6200yl series products. The power cords available for these switches are sized for the increased current that can be drawn, meeting the needs of PoE.

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