HP UX Auto Port Aggregation (APA) Software manual Complete the following steps

Page 87

Host reachable?

YES

File access successful?

YES

NO

NO

is specified as a service for the hosts database entry. If it is not, add it. Also, verify if the NIS service has information about the remote host.

5.If your /etc/nsswitch.conf file lists files as the only name-to-address translation mechanism, the /etc/hosts file does not have information on the remote host. See nsswitch.conf(4) for more information.

If a remote host is not reachable, the following message is displayed:

host is unreachable

Complete the following steps:

1.Inspect the cabling between the local host and the link partner.

2.Perform a loopback test on your own system by using the ping command. If this is successful, your system is operating properly to the Network Layer (OSI Layer 3).

3.Verify the remote host is running, using the ping command. If the remote host does not respond, ask the host's system administrator to start the host. For additional information about the ping command, see “Testing Access to Internet Network Hosts” (page 89).

4.Verify that an entry exists for the remote host in your system's ARP cache by entering the following command:

# arp hostname

If the entry is wrong or incomplete, enter the correct station address by using the arp command. See arp(1M) for more information.

5.Make sure the network devices are configured properly on the local host, using the netstat -icommand.

6.Verify that the routing tables on the local host are correct, using the netstat -rcommand. Use the ping command to determine whether the IP router is reachable.

7.Verify that the local host's address-to-name translation for the remote host is correct by using the nslookup command.

8.Inspect the routers along the path to the remote host to determine whether they have security features enabled that prevent you from reaching the remote host.

If a file cannot be accessed using the rcp or rsh command, the following message is displayed:

permission denied

Complete the following steps:

1.Verify that the user is intended to have access to the remote host. The remote host might be intentionally preventing remote access.

2.Verify that the correct host and user definitions exist in the user's

.rhosts file on the remote host.

3.Verify that the /etc/hosts.equiv file is set up correctly.

4.Verify that the directory and file protection on the files to be copied or the .rhosts file on the remote system are correct.

5.If you are using NFS, see the appropriate NFS documentation.

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Contents HP Auto Port Aggregation Administrators Guide Page Table of Contents 113 105119 127129 List of Figures Vlan over a Link AggregateVlan over a Failover Group List of Tables List of Examples Document Organization About This DocumentIntended Audience New and Changed Information in This EditionRelated Information Typographic ConventionsHP Encourages Your Comments Publishing HistoryPage Introduction Conceptual OverviewLink Aggregate Load Balancing Proactive Failover Failover GroupVlan Support TCP Segmentation OffloadInteroperability with HP Serviceguard Administrative MethodsHP System Administration Manager Manually Editing Configuration Files Lanadmin CommandInstalling the APA Software Installation RequirementsHardware Requirements Software Requirements Installing the SoftwareVerifying the Installation Operating System 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 Configuring APA Internet or Large Enterprise Environments Using RoutersSample Router and Server Configuration No Switch Server-to-Server Back-to-Back Sample Router and Server Configuration SwitchHot Standby for High Availability This configuration has the following characteristicsSample Hot Standby Configuration for High Availability Server-to-Server with Switch Not RecommendedHP APA 2-4 Port Link Aggregation Switch Sample Failover Group Lanmonitor Configuration Failover Group Using Link AggregatesSample Failover Group Using Link Aggregates Configuration Preparing for ConfigurationAggregate Instance Number HP APA Configuration WorksheetHW Path ModeFailover Policy Instance NumberLoad Distribution Algorithm Link Aggregate Advanced ParametersPriority CostFailover Group Advanced Parameters Rapid ARP Count Configuring a Link AggregateConfiguring an Fecauto Mode Link Aggregate Rapid ARP Interval10 Displaying Link Aggregates 12 Link Aggregate Advanced Options Click Advanced Options to display window similar to FigureThis window, make the necessary changes and click OK 14 Modify Network Physical Port Attributes16 Status of Configured Link Aggregate is UP 18 Link Aggregate with Configured IP Address Using SAM to Configure a Manual Mode Link Aggregate19 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 27 Configured Link Aggregates Display Configuring a Failover GroupVerifying the Configuration Configuring an IP AddressConfiguring the Link Partner Configuring HP ServiceguardWhat Happens During Start Up? What Happens During Start Up? Page Summary of lanadmin -x and -X Options Using the lanadmin CommandSet Options WhereDisplays the -Xand -xoptions help screen Lloadbalancealgorithm linkAggregatePPA Displays the help screen Display OptionsKportPPA lnyLinkAggregatePPA NanyLinkAggregatePPA Following option is supported, but with a different meaning Invoking lanadmin from the Command LineLanadmin -X -a 6 7 8 9 Configuring an Fecauto Mode Link Aggregation using lanadminChange ports lan1 and lan2 mode to Fecauto Using lanadmin InteractivelyLAN Interface Status Display Partner Page Administering HP APA Modifying HP APA Global ParametersLogging Messages to the syslog.log File Examples Administering HP APAViewing HP APA Statistics Example 5-2shows 64-bit MIB statistics Example 5-1 Sample Link Aggregate 32-Bit StatisticsGetting Started Troubleshooting HP APASolving HP APA Problems Operation# /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 HP APA If the port is not in Lacp mode, possible reasons areSet 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 Scanning the System Hardware Testing Access to Internet Network HostsExample 6-1 Sample ioscan -f Output Nettl Tracing and Logging ToolTo stop Lacp tracing, enter To stop Ciscos FEC tracing, enterGathering Information Reporting ProblemsReporting Problems Page Table A-1 HP APA and LAN Monitor Capabilities Product SpecificationsPage Hpapaconf File HP APA Configuration FilesHP APA uses the following configuration files Ports mode is set to the valueOnly. Directs APA how to set up the Lacp Configure a link aggregate for Hot Standby mode. ThisPermissible values are on and off. The default is off Text might cause errors. This does not apply to HP APAHpapaportconf File Lanconfig.ascii File Example B-1 Sample lanconfig.ascii Configuration File Specify a name for each LAN Monitor failover group on Name format is lan9XX, where XX is a decimal numberName of the system as obtained by gethostname. This Must be the first line in the fileLanconfig File 104 Configuring HP APA by Editing Files Editing Configuration Files for Link AggregatesEditing Files for MANUAL, FECAUTO, or Lacpauto Mode Activate the new configuration by entering Fecauto Port Configuration ModeActivate the configuration by entering Editing Configuration Files for Failover GroupsExample Configuring a Failover Group # lanscan Edit the file, if needed, and enter lancheckconf againProactive Failover Examples Assign a priority to the aggregates Edit the lanconfig.ascii configuration fileDown Edit the configuration fileConfiguring VLANs over Link Aggregates VLANs over APA Using HP Procurve SwitchesConfiguring VLANs over Failover Groups Verify that the Vlan with ID 333 is tagged to Trk3. EnterCreate the Vlan with ID 333 over lan900. Enter Tag Trk4 to VLANs 333 and 334. Enter Figure D-2 Vlan over a Failover GroupTag ports F17 and F18 to VLANs 333 and 334. Enter Switch 1# show vlan# lanadmin -V create vlanid 333 902 Successfully configured 118 Configuring a Single Port Switch Configuration InformationAlteon Switches Cisco 6509 SwitchesCreating an Lacp Link Aggregation Creating an PAgP Link AggregationDisplaying the Link Aggregation Displaying More Lacp Information Displaying a Port in a Link AggregationDeleting a Link Aggregation Extreme SwitchesConfiguring HP APA Link Aggregates Save the configuration. Enter saveProcurve Procurve SwitchesConfiguring Lacp Link Aggregates Procurve 4000/8000Enter the following Procurve 9304/8Following prompt displays TIP Enter command name ? to display the syntax for a commandSave the configuration. Enter Reboot the switch. Enter the followingInformation similar to the following displays Glossary AdministrativeMAC CKO IndexFirstapaport Firstlacpport Lbmac Index Vlan
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