HP ProCurve 3500-24 User Manual

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.
Distributed Trunking (DT) is included in switch software starting with version K.14. In this initial release, only
Server-to-Switch Distributed Trunking is supported. For each downstream server, it sees the aggregated links as
coming from a single switch, which makes any servers that support standard IEEE 802.3ad interoperate with
Distributed Trunking.
Distributed trunks can be grouped together by configuring two individual DT-LACP trunks with the common
trunk group name. DT ports will be aggregated dynamically after the configuration. The server/switch should
support standard IEEE 802.3ad Link Aggregation Control Protocol (LACP) on the links connecting DT switches. It
is assumed LACP on the servers are configured manually on the server with a list of links to be part of the LACP
trunk.
DT offers load balancing of traffic over multiple physical links. From the server to the switch, the traffic is
balanced according to the load-balancing scheme configured on the server NIC. From the switch to the server,
traffic is balanced according to the MAC destination address (DA) and source address (SA) pair.
Two DT switches can be connected via only one Inter-Switch Connection (ISC), and DT ports can be connected
only to servers. Following is the topology supported.
Figure A10.
70

HP ProCurve 3500-24 Specifications

General

Model	HP ProCurve 3500-24
Ports	24
Uplink Ports	4
Switching Capacity	48 Gbps
Forwarding Rate	35.7 Mpps
Mounting	Rack-mountable
Input voltage	100-240 VAC
Jumbo Frame Support	Yes
Power Supply	Internal
Layer	Layer 2/3
Management	Web, CLI, SNMP
MAC Address Table Size	16, 000

Summary

ProVision ASIC Architecture

Inside the ProVision ASIC Architecture

Details the internal workings of the ProVision ASIC architecture.

Packet Processing: Classification and Policy Enforcement

Explains packet classification, lookup, and the Policy Enforcement Engine.

Network Switch Engine Programmability

Discusses the programmability of the network switch engine within the ASIC.

Fabric Interface and Management Subsystem

HP ProCurve Switch 8200zl Series Features

8200zl Series: High Availability and Chassis Design

Details the high-availability design and chassis layouts for the 8200zl series.

Switch 8212zl Chassis Layout and Modules

Details the chassis layout, slot labeling, and modules for the 8212zl model.

Switch 8206zl Chassis Layout and Modules

Details the chassis layout, slot labeling, and modules for the 8206zl model.

HP ProCurve 8200zl Management Module Components

Describes the HP ProCurve 8200zl Management Module, its processor, memory, flash, ports, and fan tray.

HP ProCurve 8200zl Fabric and System Support Modules

Details the HP ProCurve 8200zl Fabric Modules and System Support Module.

HP ProCurve Switch 8212zl Fan Tray

HP ProCurve Switch 8206zl Fan Tray

HP ProCurve Switch 5400zl Series Features

5400zl Series: High-End Edge Switch Overview

5400zl Series Chassis Layout and Management Module

5406zl Chassis Layout Details

5412zl Chassis Layout Details

HP ProCurve Switch 6200yl Series Features

6200yl Series: Advanced Layer 3 Stackable

6200yl Series: Component Specifications (Processor, Memory, Flash, Ports)

Key Features and Benefits Across Switch Families

Performance and Security Features

Quality of Service (QoS) and Convergence Features

Layer 2 Switching, Bridging, and Routing Protocols

IPv6 Support and Multicast Protocols

High Availability, Redundancy, and Management

Covers redundancy features and details management features.

Performance and Capacity Comparison Tables

Per-Port Buffer Sizes and Routing Tables

Throughput and Latency Performance Data

HP ProCurve Warranty and Support Information

Industry-Leading Warranty Features

Appendix A: Premium License Management

License Features and Management Methods

Appendix B: Policy Enforcement Engine

Policy Enforcement Engine Benefits and Performance

Lists benefits and discusses wire-speed ACL performance.

Appendix C: Power over Ethernet (PoE) Explained

PoE Negotiation and External Power Supplies

Appendix F: Virus Throttle Security Implementation

Virus Throttle Response Options and Sensitivity Adjustment

Connection-Rate Access Control Lists (ACLs)

Appendix G: Virtual Router Redundancy Protocol (VRRP)

Appendix H: OSPF Equal Cost Multipath (ECMP)

Appendix I: Advanced Classifier-Based QoS

Appendix J: Server-to-Switch Distributed Trunking

Appendix K: Troubleshooting Guide

LED Status Indicators for Switch 8200zl Series Management Module

Details LED status indicators for the 8200zl Management Module.

Management/System Support Module LED Indicators (Continued)

Continues listing LED status indicators for management/system support module.

HP ProCurve Switch zl Modules LED Status Indicators

Details LED status indicators for HP ProCurve Switch zl modules.

Switch 5400zl Series Management Module LED Status Indicators

Lists LED status indicators for the 5400zl series management module.

5400zl Series Management Module LED Indicators (Continued)

Continues listing LED status indicators for 5400zl management modules.

5400zl Series Switch Module LED Status Indicators

Details LED status indicators for 5400zl series switch modules.

LED Status Indicators for Switch 3500 and 6200yl Series

Lists LED status indicators for 3500 and 6200yl series.

3500/6200yl Series LED Status Indicators

Details LED status indicators for 3500 and 6200yl series.

3500/6200yl Series LED Indicators (Continued)

Continues listing LED status indicators for 3500 and 6200yl series.

Part Numbers and Field Replaceable Units (FRUs)

Appendix L: Part Numbers and FRUs for 8200zl and 5400zl Series

Lists part numbers and FRUs for 8200zl and 5400zl series.

Part Numbers and FRUs for 3500 and 6200yl Series

Lists part numbers and FRUs for 3500 and 6200yl series.