HP UX Auto Port Aggregation (APA) Software manual Configuring a Link Aggregate, Rapid ARP Interval

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Rapid ARP Interval

The number of microseconds between rapid gratuitous ARP messages. The range of valid values is 1000000–4000000, inclusive (1 second to 4 seconds). The default value is 1000000 (1 second). Specify a whole number of seconds because the value you specify is rounded up to the next whole number of seconds. The value must be a valid integer. The rapid ARP interval multiplied by the rapid ARP count must be less than or equal to 60 seconds.

Rapid ARP Count

The number of gratuitous ARP packets sent rapidly. The valid range is 5–60, inclusive. The default value is 10. The value must be a valid integer. The rapid ARP interval multiplied by the rapid ARP count must be less than or equal to 60 seconds.

Configuring a Link Aggregate

This section shows how to configure the following using SAM:

FEC_AUTO mode link aggregates

MANUAL mode link aggregates

For information on configuring link aggregates by editing configuration files, see “Editing Configuration Files for Link Aggregates” (page 105).

Configuring an FEC_AUTO Mode Link Aggregate

When configuring an automatic link aggregate (FEC_AUTO or LACP_AUTO) using SAM, you configure the link aggregation characteristics first, followed by the port's modes and characteristics.

NOTE: Although this example shows how to configure an FEC_AUTO mode link aggregate, you can use these steps to configure an LACP_AUTO link aggregate. Substitute LACP_AUTO for FEC_AUTO, and key for group_capability.

Complete the following steps:

1.Log in as superuser.

2.Enter sam at the HP-UX system prompt.

3.Double-clickNetworking and Communications, and then Auto Port Aggregation. A window like the one in Figure 3-10appears. The Networking and Communications screen's List pull-down menu displays one of the following:

Link Aggregates supported by HP APA. This is the list of all available link aggregates in the system.

Network Physical Ports that Support HP APA. This is the list of all physical ports in the system that support HP APA.

36 Configuring APA

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Contents HP Auto Port Aggregation Administrators Guide Page Table of Contents 105 113119 127129 List of Figures Vlan over a Link AggregateVlan over a Failover Group List of Tables List of Examples About This Document Intended AudienceNew and Changed Information in This Edition Document OrganizationTypographic Conventions Related InformationPublishing History HP Encourages Your CommentsPage Introduction Conceptual OverviewLink Aggregate Load Balancing Failover Group Proactive FailoverTCP Segmentation Offload Vlan SupportInteroperability with HP Serviceguard Administrative MethodsHP System Administration Manager Lanadmin Command Manually Editing Configuration FilesInstalling the APA Software Installation RequirementsHardware Requirements Installing the Software Verifying the InstallationOperating System Requirements Software RequirementsRemoving the Software Output similar to the following displaysIf nothing is displayed, rebuild the kernel Page Configuring APA HP APA Configuration ExamplesEnterprise Intranet Client/Server Environment Internet or Large Enterprise Environments Using Routers Configuring APASample Router and Server Configuration No Switch Sample Router and Server Configuration Switch Server-to-Server Back-to-BackThis configuration has the following characteristics Hot Standby for High AvailabilityServer-to-Server with Switch Not Recommended Sample Hot Standby Configuration for High AvailabilityHP APA 2-4 Port Link Aggregation Switch Failover Group Using Link Aggregates Sample Failover Group Lanmonitor ConfigurationPreparing for Configuration Sample Failover Group Using Link Aggregates ConfigurationHP APA Configuration Worksheet Aggregate Instance NumberMode Failover PolicyInstance Number HW PathLink Aggregate Advanced Parameters PriorityCost Load Distribution AlgorithmFailover Group Advanced Parameters Configuring a Link Aggregate Configuring an Fecauto Mode Link AggregateRapid ARP Interval Rapid ARP Count10 Displaying Link Aggregates Click Advanced Options to display window similar to Figure 12 Link Aggregate Advanced Options14 Modify Network Physical Port Attributes This window, make the necessary changes and click OK16 Status of Configured Link Aggregate is UP Using SAM to Configure a Manual Mode Link Aggregate 18 Link Aggregate with Configured IP Address19 Link Aggregates Supporting HP APA 21 Modify Network Physical Port Attributes 23 Configuring Link Aggregates 25 Adding Ports to or Deleting Ports from Link Aggregate Configuring a Failover Group 27 Configured Link Aggregates DisplayConfiguring an IP Address Configuring the Link PartnerConfiguring HP Serviceguard Verifying the ConfigurationWhat Happens During Start Up? What Happens During Start Up? Page Using the lanadmin Command Summary of lanadmin -x and -X OptionsSet Options WhereDisplays the -Xand -xoptions help screen Lloadbalancealgorithm linkAggregatePPA Display Options Displays the help screenKportPPA lnyLinkAggregatePPA NanyLinkAggregatePPA Invoking lanadmin from the Command Line Following option is supported, but with a different meaningConfiguring an Fecauto Mode Link Aggregation using lanadmin Lanadmin -X -a 6 7 8 9Using lanadmin Interactively Change ports lan1 and lan2 mode to FecautoLAN Interface Status Display Partner Page Administering HP APA Modifying HP APA Global ParametersLogging Messages to the syslog.log File Administering HP APA ExamplesViewing HP APA Statistics Example 5-1 Sample Link Aggregate 32-Bit Statistics Example 5-2shows 64-bit MIB statisticsTroubleshooting HP APA Solving HP APA ProblemsOperation Getting Started# /sbin/init.d/hplm stop # /sbin/init.d/hpapa stop No # lanscan Solving Link Aggregate Problems Manual Mode Complete the following steps # arp hostname Appears to hang, complete the following steps Solving Link Aggregate Problems Lacp Mode If the port is not in Lacp mode, possible reasons are HP APASet the key value and mode with the following commands Complete the following steps # ifconfig interface-name up Solving Link Aggregate Problems FEC Mode If the port is not in FEC mode, possible reasons are Network is unreachable Complete the following steps Solving Failover Group Problems If the port is not in Lanmonitor mode, possible reasons are # lanadmin -r portPPA # lanqueryconf -s # lanapplyconf Complete the following steps Troubleshooting Tools Overview and Usage Testing Access to Internet Network Hosts Scanning the System HardwareNettl Tracing and Logging Tool Example 6-1 Sample ioscan -f OutputTo stop Ciscos FEC tracing, enter To stop Lacp tracing, enterReporting Problems Gathering InformationReporting Problems Page Product Specifications Table A-1 HP APA and LAN Monitor CapabilitiesPage HP APA Configuration Files HP APA uses the following configuration filesPorts mode is set to the value Hpapaconf FileConfigure a link aggregate for Hot Standby mode. This Permissible values are on and off. The default is offText might cause errors. This does not apply to HP APA Only. Directs APA how to set up the LacpHpapaportconf File Lanconfig.ascii File Example B-1 Sample lanconfig.ascii Configuration File Name format is lan9XX, where XX is a decimal number Name of the system as obtained by gethostname. ThisMust be the first line in the file Specify a name for each LAN Monitor failover group onLanconfig File 104 Configuring HP APA by Editing Files Editing Configuration Files for Link AggregatesEditing Files for MANUAL, FECAUTO, or Lacpauto Mode Fecauto Port Configuration Mode Activate the new configuration by enteringEditing Configuration Files for Failover Groups Activate the configuration by enteringExample Configuring a Failover Group Edit the file, if needed, and enter lancheckconf again # lanscanProactive Failover Examples Edit the lanconfig.ascii configuration file Assign a priority to the aggregatesEdit the configuration file DownVLANs over APA Using HP Procurve Switches Configuring VLANs over Link AggregatesConfiguring VLANs over Failover Groups Verify that the Vlan with ID 333 is tagged to Trk3. EnterCreate the Vlan with ID 333 over lan900. Enter Figure D-2 Vlan over a Failover Group Tag Trk4 to VLANs 333 and 334. EnterSwitch 1# show vlan Tag ports F17 and F18 to VLANs 333 and 334. Enter# lanadmin -V create vlanid 333 902 Successfully configured 118 Switch Configuration Information Alteon SwitchesCisco 6509 Switches Configuring a Single PortCreating an Lacp Link Aggregation Creating an PAgP Link AggregationDisplaying the Link Aggregation Displaying a Port in a Link Aggregation Displaying More Lacp InformationExtreme Switches Configuring HP APA Link AggregatesSave the configuration. Enter save Deleting a Link AggregationProcurve Switches Configuring Lacp Link AggregatesProcurve 4000/8000 ProcurveProcurve 9304/8 Enter the followingTIP Enter command name ? to display the syntax for a command Following prompt displaysSave the configuration. Enter Reboot the switch. Enter the followingInformation similar to the following displays Administrative GlossaryMAC Index CKOFirstapaport Firstlacpport Lbmac Index Vlan
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