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6 Troubleshooting HP APA

This chapter contains a diagnostic map to help you solve problems that might occur when you
use HP APA. Use this chapter with the appropriate HP and third-party switch documentation
to solve as many problems as possible at your level.

Operation

Network problems can occur for a number of reasons. The diagnostic map in this chapter help
you to isolate the problem. The following figure explains how to use the diagnostic map:

The left-hand column

asks questions about

the status of specific

events that occur as

you use the system.

The right-hand column

diagnoses negative

responses to those

questions.

After you isolate the problem, the map refers you to other chapters for instructions on using the
various problem solving tools and utilities. The map also refers you to other manuals for more
complete diagnostic information for particular devices and software products.

You might experience problems that are not documented in this manual when you use the HP
APA software with other products. See the documentation for the other products for additional
information.

Getting started

Before you start troubleshooting, ensure that the communications hardware is ready for use.
Verify the following:
•

The system's physical cable connections (the Ethernet connection and the transceiver
connection) are properly installed. See the documentation for your system and the NIC.

•

Event logging is enabled in order to monitor network events. For information about the
Network Tracing and Logging (NetTL) tool, see

“nettl tracing and logging tool” (page 81)

.

For information about logging messages to

syslog

, see

“Logging messages to the syslog.log

file” (page 43)

.

Also see the product release notes for up-to-date information on known problems.

Solving HP APA problems

System on?

NO

YES

Turn on the power to your system. See the system manual for your
system's startup procedure and any problem solving information.

Operation

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Содержание HP-UX 11i v3

Страница 1: ...HP Auto Port Aggregation Administrator s Guide HP UX 1 1i v3 HP Part Number J4240 90049 Published January 2010 Edition January 2010 E1001 ...

Страница 2: ... licensed to the U S Government under vendor s standard commercial license The information contained herein is subject to change without notice The only warranties for HP products and services are set forth in the express warranty statements accompanying such products and services Nothing herein should be construed as constituting an additional warranty HP shall not be liable for technical or edit...

Страница 3: ...e 18 Verifying the installation 18 Removing the software 19 3 Configuring APA 21 HP APA configuration examples 21 Enterprise intranet client server environment 21 Internet or large enterprise environments using routers 22 Server to Server Back to Back 24 Hot Standby for high availability 25 Server to Server with switch not recommended 26 Failover group 27 Failover group using link aggregates 28 Pr...

Страница 4: ...L mode link aggregate 53 Deleting an HP APA interface 54 Resetting a data flow 54 Task comparison with other LAN commands 54 6 Troubleshooting HP APA 57 Operation 57 Getting started 57 Solving HP APA problems 57 Solving link aggregate problems MANUAL mode 60 Solving link aggregate problems LACP mode 64 Solving link aggregate problems FEC mode 70 Solving failover group problems 74 Troubleshooting t...

Страница 5: ...ing HP Procurve switches 105 Configuring VLANs over link aggregates 105 Configuring VLANs over failover groups 106 E Switch configuration information 111 Alteon switches 111 Cisco 6509 switches 111 Configuring a single port 111 Showing a single port 111 Creating an LACP link aggregation 112 Creating an PAgP link aggregation 112 Displaying the link aggregation 112 Displaying a Port in a link aggreg...

Страница 6: ...ion for High Availability 26 3 6 Sample Server to Server Configuration with Switch Not Recommended 27 3 7 Sample Failover Group LAN_MONITOR Configuration 28 3 8 Sample Failover Group Using Link Aggregates Configuration 29 3 9 HP APA Configuration Worksheet 30 3 10 Create Link Aggregate Page 34 3 11 Operation Successful Page 35 3 12 Create Failover Group Page 36 4 1 Delete Link Aggregate Page 40 4 ...

Страница 7: ...cy Commands and Corresponding nwmgr Commands 54 A 1 HP APA and LAN Monitor Capabilities 87 C 1 lan900 Events and Proactive Failover Equal Network Costs 103 C 2 lan900 Events and Proactive Failover Unequal Network Costs 104 7 ...

Страница 8: ...e Link Aggregate 32 Bit Statistics Monitoring 47 5 1 nwmgr Output No Options 50 5 2 nwmgr Command Verbose Output Failover Group 51 5 3 nwmgr Verbose Output Link Aggregate 53 5 4 nwmgr All Attributes Output Link Aggregate 53 6 1 Sample ioscan f Output 81 B 1 Sample lanconfig ascii Configuration File 93 8 List of Examples ...

Страница 9: ...upport for the assignment of fixed MAC addresses for link aggregates and failover groups January 2009 release of APA for HP UX 11i v3 B 11 31 40 and later releases For release specific information see the release notes on the web at http www docs hp com For a summary of HP APA capabilities see Appendix A page 87 Conceptual overview HP APA offers you a comprehensive solution to create fast highly a...

Страница 10: ... the link partner and the server must be the same For example if ports 1 2 3 and 4 are connected to a link partner switch s ports C1 C2 C3 and C4 respectively and the server side is trunked using LACP_AUTO mode the partner switch must be configured to trunk ports C1 C2 C3 and C4 using LACP_AUTO mode NOTE MANUAL mode link aggregates using HOT_STANDBY load balancing can be connected to different swi...

Страница 11: ... active port or its link partner fails LAN Monitor automatically migrates the traffic to one of the standby ports in the failover group When a port with a higher priority than the current active port recovers the network traffic is migrated back to the previous active port Sometimes it is desirable to have the network traffic remain on the current active port after the failure and recovery of the ...

Страница 12: ...ed If a port is removed from a link aggregate the following occurs If TSO was supported on the link aggregate before removing the port TSO remains enabled on the link aggregate If TSO was disabled on the link aggregate before removing the port TSO of the link aggregate is based on remaining ports in the link aggregate If all remaining ports support TSO TSO is enabled on the link aggregate otherwis...

Страница 13: ... with HP APA you must use HP Serviceguard version A 11 17 01 or later HP Serviceguard can use Manual FEC and LACP link aggregates and failover groups LAN_MONITOR mode The maximum number of links for each link aggregate is 8 for FEC_AUTO and 32 for LACP_AUTO For installation guidelines see Configuring HP Serviceguard page 37 Administrative methods The following sections provide a brief overview of ...

Страница 14: ...h If the DISPLAY environment variable is set HP SMH opens in the default web browser If the environment variable is not set HP SMH opens in the TUI Figure 1 1 shows the SMH Main page Figure 1 1 SMH Main Page 2 Click Tools The Tools page displays 14 Introduction ...

Страница 15: ... page 49 nwmgr 1M and nwmgr_apa 1M respectively NOTE The lanadmin lanscan and linkloop commands are deprecated These will be removed in a future HP UX release HP recommends the nwmgr command to perform all network interface related tasks Manually editing configuration files Some sections of this manual describe the system files that are updated or modified when you perform an administrative task E...

Страница 16: ...16 ...

Страница 17: ...E 802 3ad and manual trunking mechanisms HP has tested switches from the following vendors to work with HP APA 3Com Cisco HP Procurve Foundry Alteon Nortel Extreme HP APA also supports Nortel s Split Multi Link Trunking SMLT technology Specifically HP has tested the Passport 8006 and Passport 8010 switches with the version 3 7 13 0 of the software Supported LAN cards The following network interfac...

Страница 18: ... APA software J4240AA 6 Choose Mark for Install from the Actions menu 7 Choose Install from the Actions menu to begin product installation and to display the Install Analysis window 8 Click OK in the Install Analysis window when the Status field displays a Ready message 9 Click YES at the Confirmation window to confirm that you want to install the software The swinstall command loads the fileset r...

Страница 19: ...ing is displayed rebuild the kernel Removing the software If you need to remove the HP APA software complete the following steps 1 To remove the software from the system enter the following command swremove 2 Highlight the HP APA software J4240AA 3 Choose Mark for Remove from the Actions menu 4 Choose Remove from the Actions menu to begin product removal and to display the Remove Analysis window 5...

Страница 20: ...20 ...

Страница 21: ...llowing characteristics Requires a switch capable of trunking or load balancing Many clients produce many connections This makes effective use of the HP APA outbound network traffic distribution algorithms The HP APA MAC address load balancing algorithm is a good choice The IP address and TCP UDP port address load balancing algorithm also works effectively in this configuration The switch typicall...

Страница 22: ...outer inject another level of complexity that you must analyze before determining that the environment is a candidate for HP APA link aggregations Figure 3 2 page 23 shows a sample router and server configuration with no switch This configuration makes the following assumptions The router or switching router connected to the server provides trunking or load balancing using an IP address based load...

Страница 23: ...leneck point because the packets from the router and from the server will contain the same source and destination MAC addresses thus defeating the load balancing algorithm for both inbound and outbound data at the server This condition might be acceptable if the load balancing of inbound traffic to the server is not a concern and the link between the switch and the router has greater bandwidth cap...

Страница 24: ...e physical ports in the other server s link aggregation This configuration has the following characteristics It needs many TCP UDP client connections between the servers in order for load balancing to be effective Therefore use the HP APA TCP UDP port load balancing algorithm Depending on the network traffic bandwidth requirements use two to eight 100BT interfaces or two to eight Gigabit interface...

Страница 25: ...he standby link takes over the responsibility for delivering network traffic If the previous active link is configured with a higher port priority than the current active link when it recovers it resumes being the active link delivering the network traffic If the port priorities are the same the current active link continues as the active link The active and standby links must both be the same typ...

Страница 26: ...le server to server HP APA link aggregation configuration with a switch between the servers This configuration will not work as intended for the following reasons The switch nullifies any load balancing of network traffic provided by HP APA The switch uses a MAC address load balancing algorithm Because the servers link aggregations have fixed MAC addresses the switch will not load balance it will ...

Страница 27: ...provides high availability network access with an active link and a standby link and has the following characteristics Dual switches or hubs are not required However dual switches and hubs provide a more reliable network environment by removing the switch or hub as a single point of failure If two switches or hubs are used there must be a data path between them to allow them to be on the same subn...

Страница 28: ... balancing across the physical links This configuration has the following characteristics You can use any HP APA link aggregate except Hot Standby as a device in the failover group The standby link does not have to be a link aggregation It can be a single physical link of the same type as used in the link aggregation Dual switches are not required However dual switches provide a more reliable netw...

Страница 29: ...link and one physical link as a standby link Power Run Attn Fault Remote hp ProCurve Switch 8000 hp ProCurve Switch 8000 Preparing for configuration Before you configure the HP APA software you must gather information about your system and network environment Figure 3 9 shows the APA Configuration Worksheet The following sections describe the information that you need to record on the worksheets I...

Страница 30: ...ONITOR Priority Based LB_MAC HOT_STANDBY LB_IP LB_PORT LACP_AUTO Not_Enabled Cost Based MANUAL Group Capability Key FEC_AUTO only LACP_AUTO only on off Dead Count Polling Interval Rapid ARP Rapid ARP Interval Rapid ARP Count Instance Number Hardware Path Interface Type Priority Cost Aggregate Instance Number The PPA number of the link aggregate or failover group Enter a value For example use 900 f...

Страница 31: ...at has the highest port priority highest value to be the new active link Cost Based If the active port fails LAN Monitor chooses the standby link that is UP and has the lowest normalized port cost to be the new active link This is also called proactive failover See Proactive failover page 11 for a description of proactive failover and Proactive failover examples page 102 for proactive failover exa...

Страница 32: ...ant to use The following choices are available LB_MAC This algorithm uses the least significant byte of the link level destination MAC address of the data flow as an index into a table of 256 possible entries The physical port selected will be used to send packets for the duration of the specific data flow This is the default algorithm for all link aggregates Recommended Configuration Server to Sw...

Страница 33: ...advanced parameters Dead Count The number of polling packets that are missed before LAN Monitor sends a nettl log message to the user that indicates the link might have problems and the network must be checked The default is 3 Polling Interval The number of microseconds between polling messages Polling messages are sent between links in the specified interval for monitoring the health of all the l...

Страница 34: ... Configuration tool of the System Management Homepage SMH to create a link aggregate To invoke SMH follow the instructions in Administrative methods page 13 See the same section for alternatives to using SMH Complete the following steps 1 Click Create Link Aggregate on the APA main page to open the Create Link Aggregate page as shown in Figure 3 10 Figure 3 10 Create Link Aggregate Page 2 Select a...

Страница 35: ... and APA configuration to the etc rc config d hp_apaconf etc rc config d hp_apaportconf and etc lanmon lanconfig ascii files which maintains the Create Link Aggregate changes across reboots After you configure the link aggregate configure an IP address for the link aggregate to enable it See Configuring an IP address page 37 for more information Configuring a failover group Use the Network Interfa...

Страница 36: ... you are creating a failover group with a priority based failover policy 6 Enter a Cost if you are creating failover group with a cost based failover policy 7 Click Advanced Parameters to display additional failover group parameters Enter the failover group parameters you want 8 Select the Configuration Options you want 9 Click OK to create a failover group and set the attributes An Operation Succ...

Страница 37: ...u configure your switches trunking mode AUTO or MANUAL to match the mode being used on the server for example Cisco Fast EtherChannel FEC IEEE 802 3ad Link Aggregation Control Protocol LACP or MANUAL If you selected HOT_STANDBY as the load distribution algorithm for a MANUAL mode link aggregate or configured a failover group do not configure the switch ports for an aggregation See Appendix E page ...

Страница 38: ... all the properties on each port and link aggregate 2 hp_apaportconf file is processed Contains customization variables for each physical port The features that can be set on each port are Group Capability Port Priority and Configuration Mode If no value is specified for a given feature for a given port the software assumes a default value for the same The port s mode is set at this stage 3 hp_apa...

Страница 39: ... Operation Successful page appears confirming the modification of the link aggregate and the updating of the APA configuration 6 Click OK The APA main page displays showing the newly modified link aggregate Modifying a failover group To modify a failover group do the following 1 Select a failover group in the SMH APA main page to display the detailed view of the failover group 2 Click Modify Failo...

Страница 40: ...iguration Options you want if different from the default 4 Click OK to delete the link aggregate An Operation Successful page appears Figure 4 2 confirming the deletion of the link aggregate and the updating of the APA configuration 40 Administering HP APA ...

Страница 41: ...p An Operation Successful page appears confirming the deletion of the failover group and the updating of the APA configuration 5 Click OK The APA main page displays Displaying the current APA configuration To display the HP APA current configuration information do the following 1 Click Display Current APA Configuration on the SMH APA main page to display all HP APA aggregate and standalone port in...

Страница 42: ... to set up the LACP System ID The supported values are as follows FIRST_APA_PORT Sets the LACP System ID to the first supported HP APA port This is the default FIRST_LACP_PORT Sets the LACP System ID to the first active UP port that starts LACP LACP Timeout Specifies an interval of time between LACP Protocol Data Units PDUs after which the server considers the LACP link partner to be down The supp...

Страница 43: ...ort that is not in a link aggregate 2 Click Stop LACP FEC Protocol to display the Stop LACP FEC Protocol page 3 Select the Configuration Options you want if different from the default 4 Click OK to stop the LACP or FEC protocol An Operation Successful page appears confirming the stopping of the protocol and the updating of the APA configuration 5 Click OK The APA main page displays By default SMH ...

Страница 44: ... A links 9 I 900 S apa 6 Link 7 and link aggregate 900 are not operational 7 Link aggregate 900 was cleared for example by issuing the following command nwmgr d A links all I 900 S apa If link aggregate 900 is a failover group lan900 has a FOG prefix instead of LA as shown in the previous example For failover groups and Hot standby mode link aggregates the current active link is also displayed as ...

Страница 45: ... aggregate is created The 64 bit statistics capability will be downgraded to 32 bits if the aggregate membership changes to include one or more links that are not 64 bit MIB capable After the aggregate s 64 bit MIB capability is downgraded it will never be upgraded again for the life of the aggregate To display statistics use the nwmgr st I instance S apa command Example 4 1 shows 32 bit MIB stati...

Страница 46: ... APA for HP UX 11i v3 the nwmgr command stats monitor option enables you to view APA traffic continuously including statistics of every member port of an APA link aggregate You can specify the following parameters q counter type The counter parameter can have the following values o Displays octet counters You cannot specify this value with p or t p Displays packet counters You cannot specify this ...

Страница 47: ...mgr stats monitor q counter p q value d I 900 S apa SEP 28 2007 10 57 33 32 bit MIB Statistics for Linkagg 900 PPA OutPackets OutErr OutDis InPackets InErr InDis 900 0 0 0 0 0 0 5 0 0 0 0 0 0 4 0 0 0 0 0 0 SEP 28 2007 10 57 34 32 bit MIB Statistics for Linkagg 901 PPA OutPackets OutErr OutDis InPackets InErr InDis 900 2 0 0 2 0 0 5 1 0 0 1 0 0 4 1 0 0 1 0 0 SEP 28 2007 10 57 35 32 bit MIB Statisti...

Страница 48: ...48 ...

Страница 49: ...aportconf and etc lanmon lanconfig ascii files Perform Critical Resources Analysis CRA of ports with the cra This displays any system resource that depends on an APA interface Add ports to an existing failover group with the with the a option Delete ports from a failover group with the d option Assign a fixed MAC address to link aggregates and failover groups Changes made using nwmgr are effective...

Страница 50: ...erations Displaying HP APA configuration information The nwmgr command enables you to display configuration information for all APA interfaces for physical ports and for global parameters Example 5 1 shows the nwmgr command output when no options are specified The output shows all configured interfaces both physical ports and link aggregates beginning with lan900 Example 5 1 nwmgr Output No Option...

Страница 51: ...s 0x00306EF2BADE Network Management ID 26 Features Linkagg Interface 1 IPV4 Recv CKO IPV4 Send CKO VLAN Support VLAN Tag Offload 64Bit MIB Support Load Distribution Algorithm LB_HS Mode LAN_MONITOR Parent PPA 2 APA State Up 3 Membership 9 21 22 14 13 4 Active Port s 9 5 Ready Port s 21 22 14 6 Not Ready Port s 13 7 Connected Port s 21 22 8 Polling Interval 10000000 Dead Count 3 Rapid ARP on Rapid ...

Страница 52: ...ed to the Active Port list as failover occurs This field is displayed only when the Mode is LAN_MONITOR 7 A list of the down ports in the link aggregate In the previous example the Membership field indicates lan13 is in a down state and is also in the Not Read Port s list 8 A list of the ports connected to the active port This indicates that polling packets are being sent successfully between the ...

Страница 53: ...Speed 2 Gbps Full Duplex MTU 1500 Virtual Maximum Transmission Unit 0 MAC Address 0x00127942FC38 Network Management ID 46 Features Linkagg Interface IPV4 Recv CKO IPV4 Send CKO VLAN Support VLAN Tag Offload 64Bit MIB Support Load Distribution Algorithm LB_MAC Mode LACP_AUTO Parent PPA APA State Up Membership 13 14 Active Port s 13 14 Not Ready Port s Group Capability 5 Key 920 Operational Key 920 ...

Страница 54: ...age 10 for a description of HP APA load balancing You might need to reset or clear the data flow for a link aggregation for example when adding a new port to a link aggregate In this case the data flow continues to use the same port no traffic is sent through the new port unless a new data flow is created and mapped to that port To reset a data flow enter the following command nwmgr r q data_flow ...

Страница 55: ...configuration mode for a port nwmgr s A key 900 I 4 S apa lanadmin X k 4 900 900 Update the administrative key for a port nwmgr s A lb LB_IP I 900 S apa lanadmin X l LB_IP 900 Update the load balancing nwmgr s A mode MANUAL I 5 S apa lanadmin X p 5 MANUAL 900 Set the configuration mode on a port nwmgr s A sys_pri 10 I 5 S apa lanadmin X s 5 10 900 Set the system priority on a port nwmgr A mac c la...

Страница 56: ...stics nwmgr r c lan900 lanadmin r 900 Reset an APA interface nwmgr r st c lan900 lanadmin c 900 Reset statistics nwmgr h S apa lanadmin x h 900 View basic help nwmgr h v S apa lanadmin X H 900 View verbose help nwmgr r q data_flow c lan900 lanadmin X o 900 Clear data flows on a link aggregate nwmgr lanscan List all interfaces on the system nwmgr S apa lanscan q List all APA interfaces 56 Using the...

Страница 57: ...cular devices and software products You might experience problems that are not documented in this manual when you use the HP APA software with other products See the documentation for the other products for additional information Getting started Before you start troubleshooting ensure that the communications hardware is ready for use Verify the following The system s physical cable connections the...

Страница 58: ... Verify that the network card is seated correctly and that it is operational 2 Check that your network physical port connectors between the NIC and the switch or wall plug are fully connected NIC claimed NO YES Verify that the NIC has been claimed by the operating system Issue the following command ioscan fkC lan If the driver has been claimed the driver name appears in the Driver column and CLAIM...

Страница 59: ...ning Enter the following command ps e grep inetd If no inetd daemon is running start it using the following command sbin init d inetd start APA depot installed NO YES Verify that the HP APA depot is installed by issuing the following command swlist grep J4240AA If the product is installed the following message is displayed J4240AA B 11 31 20 Auto Port Aggregation Software If the product is not ins...

Страница 60: ...ring a link aggregate page 34 for more information Link aggregate enabled NO YES Verify that the link aggregate is enabled by issuing the following command nwmgr v c lanxxx where xxx is the link aggregate instance number for example 900 If the aggregate is enabled the APA State is Up If the APA State is Down do the following 1 Check the cabling between the NIC and the switch 2 Verify that the link...

Страница 61: ...h the following command nwmgr v c lanxxx All ports must have the same values If they do not make any changes as necessary on the server and the switch 3 Check if there is an IP address or a VLAN on the port All ports active NO YES Verify the active ports in the link aggregate by issuing the following command nwmgr v c lanxxx where xxx is the link aggregate instance number The Active Port s field l...

Страница 62: ...mation about the remote host 4 If your site uses the NIS name service for name to address translation look in the etc nsswitch conf file to see if nis 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 ho...

Страница 63: ...st 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 telnet command successful NO YES If the telnet command is not successful there is a problem with the Trans...

Страница 64: ... Verify that the switch is configured correctly with the appropriate ports enabled and autonegotiation set to ON See the appropriate switch documentation to determine if the switch ports connected to the server are configured correctly for link aggregation trunking and support LACP Link aggregate configured NO YES Verify that the link aggregate is configured by issuing the nwmgr command Link aggre...

Страница 65: ...If the link aggregate contains ports that you do not want in the aggregate delete the ports by issuing the following command nwmgr d A links port number c lanxxx where port number can be a list of multiple ports numbers separated by commas and xxx is the instance number of the link aggregate for example 900 If any ports you wanted in the link aggregate are members of another link aggregate delete ...

Страница 66: ... port is not in LACP mode possible reasons are The port has IP addresses or VLANS configured on it Unconfigure them from the port and start LACP again The port is not in full duplex mode Make sure the port on the server and on the switch are set to full duplex or to autonegotiate Start LACP again The port is already in a link aggregate failover group or in FEC_AUTO mode Find another port to use Th...

Страница 67: ...fy the port s operation status by issuing the following command nwmgr st c lanxxx where xxx is the interface number If the Operation Status is UP see the steps for Link partner configured If the status is down check the cabling from the NIC to the switch and see the steps for NIC operating Network reachable NO YES If a remote host s network is not reachable the following message is displayed in re...

Страница 68: ... the host For additional information about the ping command see Testing access to Internet network hosts page 80 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 ...

Страница 69: ... be the cause contact your HP representative See Reporting problems page 83 for more information Connection stays up NO YES If the connection terminates abnormally or a network application appears to hang complete the following steps 1 Confirm that the NIC is properly configured Make sure the cabling from the local host to the network is intact and properly connected 2 3 Test the network connectiv...

Страница 70: ...tly for link aggregation trunking and support the FEC protocol Link aggregate configured NO YES Verify that the link aggregate is configured by issuing the nwmgr command Link aggregate names begin with lan900 lan900 lan901 and have the Subsystem as hp_apa If the link aggregate is not configured use the System Management Homepage to configure it See Configuring a link aggregate page 34 for more inf...

Страница 71: ...here are ports you wanted in the link aggregate that are not members of the link aggregate do the following 1 If the port is set to LACP or FEC mode set the port mode to MANUAL 2 Note the speed duplex mode MTU size and checksum offload capability of each port you want All ports must have the same values 3 Verify that the link aggregate has a group capability value specified If it does not set it w...

Страница 72: ...ame domain and that the user specified the full domain name 3 If your site uses the Domain Name System DNS for name to address translation look in the etc nsswitch conf file to see if nis is specified as a service for the hosts database entry If it is not add it Also verify that the DNS service has information about the remote host 4 If your site uses the NIS name service for name to address trans...

Страница 73: ...essed 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 u...

Страница 74: ...e LAN e Check the var adm nettl LOG000 file to see if there are any errors for example cable disconnection messages Format the nettl LOG000 file using the following command netfmt N nettl LOG000 Problem still exists Report your problem to HP See Reporting problems page 83 Solving failover group problems Link partner configured NO YES Verify that the switch is configured correctly Refer to the appr...

Страница 75: ...command nwmgr d A links port number c lanxxx If there are ports you wanted in the failover group that are not members of the failover group verify the type speed duplex mode MTU size and checksum offload capability of each port you want with the following command nwmgr v c lanxxx where xxx is the instance number for the port All ports must have the same values To change an attribute do the followi...

Страница 76: ...ecomes ready or active If it does not see the steps for Link partner configured Then reset the port with the following command and wait 30 seconds nwmgr r c lanxxx NOTE Only reset physical ports not link aggregates that are members of the failover group If the port does not appear in the Ready Port s list delete the port and add it with the following commands nwmgr d A links port number c lanxxx S...

Страница 77: ...n the intended port cost modify the cost value for the intended port making it less than the current active port with the following command nwmgr s A port_pri value A port_cost value c lanxxx S apa Wait 30 seconds for the change to take effect Verify the active port again Save the current configuration with the following command nwmgr s A all fr cu sa S apa Ready ports match connected ports NO YES...

Страница 78: ...rify that the user is trying to reach the remote host using a valid host name 2 Verify that the remote host is in another name domain and that the user specified the full domain name 3 If your site uses the Domain Name System DNS for name to address translation look in the etc nsswitch conf file to see if nis is specified as a service for the hosts database entry If it is not add it Also verify th...

Страница 79: ...m reaching the remote host File access successful NO YES 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 ...

Страница 80: ...tl LOG000 Problem still exists Report your problem to HP See Reporting problems page 83 Troubleshooting tools overview and use To help you resolve problems with HP APA the operating system provides tools you can use to complete the following tasks Test access to network hosts on the Internet Scan the system hardware Display the nettl log and trace files Report problems to HP The following sections...

Страница 81: ...D INTERFACE HP PCI 1000Base T Core lan 9 8 12 2 0 igelan CLAIMED INTERFACE HP PCI 1000Base T Core bc 2 10 ccio CLAIMED BUS_NEXUS I O Adapter ext_bus 0 10 0 c720 CLAIMED INTERFACE GSC built in Fast Wide SCSI target 0 10 0 6 tgt CLAIMED DEVICE disk 0 10 0 6 0 sdisk CLAIMED DEVICE HP C2490WD target 1 10 0 7 tgt CLAIMED DEVICE ctl 0 10 0 7 0 sctl CLAIMED DEVICE Initiator bc 3 10 4 bc CLAIMED BUS_NEXUS...

Страница 82: ... line help To access the GUI version of the logging and tracing utility enter the following command nettladm There are three levels of logging At link aggregate level At Cisco s FEC level At IEEE 802 3ad LACP level The following examples show how to perform different tasks from the command line To turn on all logging at link aggregate level enter nettl log 0xf e HP_APA To turn on all logging at Ci...

Страница 83: ...for information on creating a filter for trace formatting Reporting problems If you are unable to solve a problem with HP APA do the following 1 Read the release notes for HP APA to see if the problem is known If it is follow the solution offered to solve the problem 2 Determine whether the product is still under warranty or whether your company purchased support services for the product Your oper...

Страница 84: ... and record messages about the status of the NIC 5 Enter the nwmgr command and record the output 6 Enter the nwmgr st c lanx command and record the output 7 Record all error messages and numbers that appear at the user terminal and the system console 8 Save all network log files Make sure that Error and Disaster log classes are enabled when log files are collected Prepare the formatted output and ...

Страница 85: ...upported Operating Systems Manufacturing Part Number January 2010 E1001 B 11 31 0909 11i v3 J4240 90049 September 2008 E1207 B 11 00 xx B 11 11 30 B 11 23 40 B 11 31 10 11 0 11i v1 11i v2 J4240 90046 September 2008 E0908 B 11 31 20 11i v3 J4240 90045 December 2007 E1207 B 11 00 xx B 11 11 30 B 11 23 40 B 11 31 10 11 0 11i v1 11i v2 11i v3 J4240 90041 September 2007 E0907 B 11 00 xx B 11 11 30 B 11...

Страница 86: ...he name of a placeholder in a command function or other syntax display that you replace with an actual value The contents are optional in syntax If the contents are a list separated by you must choose one of the items The contents are required in syntax If the contents are a list separated by you must choose one of the items The preceding element can be repeated an arbitrary number of times Indica...

Страница 87: ...ink Aggregate 50 50 50 Maximum Number of Link Aggregates per System MANUAL LB and HS 2 FEC_AUTO LB LACP_AUTO LB LAN_MONITOR HS HS FEC_AUTO LB LACP_AUTO LB MANUAL LB and HS Load Balancing LB or Hot Standby HS Yes Yes Yes MIB Monitor Support PCI PCI PCI Buses 100BT Gigabit 10 GbE Fiber LAN_MONITOR InfiniBand IPoIB LAN_MONITOR 100BT Gigabit 10 GbE Fiber InfiniBand IPoIB See Software requirements page...

Страница 88: ... is configurable for outbound traffic on Ethernet links only 3 Links must be of the same speed and type 100Base T or 1000Base T 4 LACP requires full duplex FD operation of the links 5 You cannot reset the speed duplex mode or MTU size over a link aggregate 6 This is for the total of link aggregates and failover groups combined 88 Product specifications ...

Страница 89: ...ng the mode of ports HP_APA_DEFAULT_PORT_MODE in the etc rc config d hp_apaconf file Sets the default APA configuration mode for all ports The recommended mode is MANUAL The APA product is shipped with the entry in the hp_apaconf file set to HP_APA_DEFAULT_PORT_MODE MANUAL HP_APAPORT_CONFIG_MODE in the etc rc config d hp_apaportconf file Sets the APA configuration mode for a single port This varia...

Страница 90: ...t link aggregates should have different keys Must match the value of HP_APAPORT_KEY in the etc rc config d hp_apaportconf file HP_APA_LACP_SYSTEM_ID_MODE For LACP_AUTO only Directs APA how to set up the LACP System ID The supported values are as follows FIRST_APA_PORT Sets the LACP System ID to the first supported HP APA port This is the default FIRST_LACP_PORT Sets the LACP System ID to the first...

Страница 91: ...CE_MODE 1 LB_PORT HP_APA_HOT_STANDBY 1 off HP_APA_MANUAL_LA 1 2 3 4 NOTE Ensure that the server and switch are set to the same mode MANUAL To configure the MANUAL link aggregates lan905 and lan906 using the system assigned MAC address and user assigned MAC address respectively HP_APA_INTERFACE_NAME 5 lan905 HP_APA_LOAD_BALANCE_MODE 5 LB_MAC HP_APA_FIXED_MAC 5 on HP_APA_MANUAL_LA 5 1 2 3 HP_APA_INT...

Страница 92: ...at the user wants the port to join This value is set in the etc rc config d hp_apaconf file Configuring a link aggregate page 34 describes how to choose the key The default administrative key is 0 HP_APAPORT_PRIORITY Set the port priority for the port The port priority determines which port in a link aggregate will be the active interface when the link aggregate is set to Hot Standby mode HP_APA_H...

Страница 93: ...ost This means a fail over group will change its active port to a ready port having a lower normalized port cost even when the current active port remains up You must use cost based fail over groups in order to get the Proactive Failover behavior To define a cost based fail over group all the ports in the fail over group must have a cost defined Cost has a valid range of between 1 and 100 inclusiv...

Страница 94: ...nt in a failover group declaration the primary port of the failover group is configured with an IPv4 address IPv6 address or both Then when the failover group is created the addresses are switched to the failover group When the STATIONARY_IP field is not present the primary port has no IP address defined The failover group is created with no IP address on it You can configure IP addresses on the f...

Страница 95: ...le A link aggregate s polling interval is set to the last specified interval For a description of this parameter see Failover group advanced parameters page 33 DEAD_COUNT The number of polling packets that are missed before LAN Monitor sends a nettl log message to the user that indicates the link might have problems and the network should be checked For a description of this parameter see Failover...

Страница 96: ...VAL and LM_RAPID_ARP_COUNT fields once in the lanconfig ascii file before all failover the values apply to all failover groups If you specify them multiple times in the file the values apply only to those failover groups that follow these fields you can set different values for failover groups 96 HP APA configuration files ...

Страница 97: ...that you configure the trunking mode AUTO or MANUAL of your switches to match the mode being used on the server Cisco Fast EtherChannel FEC IEEE 802 3ad Link Aggregation Control Protocol LACP or MANUAL mode Editing files for MANUAL FEC_AUTO or LACP_AUTO mode 1 Ensure that the switch ports and the HP LAN card ports are set to the same APA or trunking mode MANUAL or AUTO speed and duplex mode 2 Use ...

Страница 98: ...TO 3 Activate the new configuration by entering sbin init d hplm stop 1 sbin init d hpapa stop 2 sbin init d hpapa start sbin init d hplm start 3 1 If failover groups are also configured 2 This can interrupt traffic on existing link aggregates 3 For configuring failover groups NOTE Set the group capability in the previous examples to be the same as that of the link aggregate to which it belongs Po...

Страница 99: ...tconf file and assign the active and standby physical ports to LAN_MONITOR mode For example the following entries put lan1 and lan2 into a failover group HP_APAPORT_INTERFACE_NAME 0 lan1 HP_APAPORT_CONFIG_MODE 0 LAN_MONITOR HP_APAPORT_INTERFACE_NAME 1 lan2 HP_APAPORT_CONFIG_MODE 1 LAN_MONITOR 4 Activate the configuration by entering sbin init d hplm stop sbin init d hpapa stop sbin init d hpapa st...

Страница 100: ... you later want to delete all the failover groups created enter the landeleteconf command 11 The failover group is now operational A reboot will restart the failover group as long as the etc lanmon lanconfig ascii file is intact Example Configuring a failover group Suppose you want to configure a simple two port LAN Monitor failover group on a K class system You enter the netstat and ioscan comman...

Страница 101: ...tandby interfaces that sets the interfaces port configuration mode to LAN_MONITOR HP_APAPORT_INTERFACE_NAME 0 lan1 HP_APAPORT_CONFIG_MODE 0 LAN_MONITOR HP_APAPORT_INTERFACE_NAME 1 lan2 HP_APAPORT_CONFIG_MODE 1 LAN_MONITOR 5 Activate the configuration by entering sbin init d hplm stop sbin init d hpapa stop sbin init d hpapa start sbin init d hplm start 6 If the device to be the active link does no...

Страница 102: ...he active link aggregate to the standby link aggregate occurs only when all ports in the link aggregate failed However the examples in the next section show how proactive failover gives you greater control of the failover Proactive failover examples Proactive failover relies on measuring and calculating efficiency The efficiency of a link aggregate or individual port in a failover group is affecte...

Страница 103: ... than lan900 5 Normalized port cost is the same but it has a higher priority than lan901 If the priorities were the same lan901 would continue as the active port until the third port in lan900 became active Example 2 You want to configure a failover group lan902 for proactive failover You decide that the failover group consists of two link aggregates lan900 and lan901 The lan900 aggregate consists...

Страница 104: ...n9013 3 200 or 015 2 100 or 020 Port 2 on lan900 is DOWN lan9004 3 200 or 015 2 200 or 010 Port 2 on lan900 is UP lan9005 3 100 or 030 2 200 or 010 Port 4 on lan901 is DOWN lan9006 3 200 or 015 2 200 or 010 Port 4 on lan901 is UP lan9017 3 200 or 015 0 Ports 2 and 3 on lan900 are DOWN 1 All ports in the link aggregates are operational 2 Normalized port cost is lower than lan901 3 Normalized port c...

Страница 105: ... urve Sw i t ch 8000 lan3 and lan4 form lan900 Pow er Run A t t n Faul t Rem ot e Switch1 lan3 lan4 F23 F24 F23 24 form Trk3 To configure the VLAN on the switch complete the following steps 1 Create the trunk on the switch side Enter HP ProCurve Switch 5308xl HP ProCurve Switch 5308xl configure HP ProCurve Switch 5308xl config trunk F23 F24 Trk3 trunk HP ProCurve Switch 5308xl config exit F23 and ...

Страница 106: ...riority 0 Priority Override Level CONF_PRI ToS 0 ToS Override Level IP_HEADER Configuring VLANs over failover groups You can improve the availability of VLANs by configuring VLANs over a failover group To ensure success each port or link aggregate used in the failover group must be tagged with the IDs of the VLANs to be created over it Before creating the failover group you must decide the ports t...

Страница 107: ...witch 1 set the trunk type to trunk MANUAL trunking Connect ports lan5 and lan6 to ports F17 and F18 respectively on Switch 2 To create the VLANs on Switch 1 complete the following steps 1 Create the VLANs with IDs 333 and 334 Enter Switch 1 Switch 1 configure Switch 1 config vlan 333 name vlan_333 Switch 1 config vlan 334 name vlan_334 2 Tag Trk4 to VLANs 333 and 334 Enter Switch 1 config vlan 33...

Страница 108: ... 333 name vlan_333 Switch 2 config vlan 334 name vlan_334 2 Tag ports F17 and F18 to VLANs 333 and 334 Enter Switch 2 config vlan 333 tagged F17 Switch 2 config vlan 333 tagged F18 Switch 2 config vlan 334 tagged F17 Switch 2 config vlan 334 tagged F18 Switch 2 config exit 3 Verify that the VLANs with IDs 333 and 224 are tagged correctly Enter Switch 2 show vlan 333 Status and Counters VLAN Inform...

Страница 109: ...an5000 current values VPPA 5000 Related PPA 902 VLAN ID 333 VLAN Name UNNAMED Priority 0 Priority Override Level CONF_PRI ToS 0 ToS Override Level IP_HEADER nwmgr a S vlan A vlanid 334 ppa 902 VLAN interface lan5001 successfully configured lan5001 current values VPPA 5001 Related PPA 902 VLAN ID 334 VLAN Name UNNAMED Priority 0 Priority Override Level CONF_PRI ToS 0 ToS Override Level IP_HEADER Co...

Страница 110: ...110 ...

Страница 111: ...ns that they hand off frames to one another with a throughput of 256 Gb s This is the equivalent of 64 GigE cards continuously transmitting and receiving at their theoretical limits with no overhead This section describes the following tasks Configure a single port Show a single link Create an LACP link aggregation Create a PAgP link aggregation NOTE The information in this section pertains to Cis...

Страница 112: ...th Ctrl z or end Creating an PAgP link aggregation Switch1 enable Password password Switch1 config term config command 1 Ctrl z Switch1 config if interface range gigabitethernet 7 1 4 Switch1 config if range no ip address Switch1 config if range channel protocol pagp Switch1 config if range channel group 7 mode desirable Creating a port channel interface Port channel 7 Switch1 config if range end ...

Страница 113: ...e is in active mode P Device is in passive mode Local information LACP port Admin Oper Port Port Port Flags State Priority Key Key Number State Gi3 3 SA bndl 32768 0x1 0x1 0x303 0x3D Partner s information Partner Partner Partner Port System ID Port Number Age Flags Gi3 3 00000 0030 6ef4 82380x5 19s SA LACP Partner Partner Partner Port Priority Oper Key Port State 0 0x384 0x3D Displaying more LACP ...

Страница 114: ...peeds Therefore you will not be able to test a card with this setting The speeds are stated on the back of the switch itself To configure jumbo frames on all ports enter enable jumbo frame ports all To verify all ports enter show ports info Configuring HP APA link aggregates Before configuring a HP APA in Manual mode do the following 1 Verify port connections Do the following a From another system...

Страница 115: ... information that you might find useful in using these switches Power cycling the Procurve switch turns flow control off You must turn flow control on for all ports after power cycling the switch Both the 4000 and 8000 switch have backplane limitation of 3 8 Gb s This makes them unsuitable for testing Gigabit Ethernet The Procurve 4000 8000 does not support Jumbo frames To configure the switch do ...

Страница 116: ...EC aggregation use the right arrow key to move to the Type column d Press the space bar to select LACP or FEC Select Trunk for a Manual aggregation e Press Enter to return to the choices at the bottom of the menu Then select Save The Switch Configuration Menu displays f Select 2 Port Trunk Settings g Select Edit Use the down arrow to move to the switch ports you wish to enable Enter Y for each por...

Страница 117: ...mgr diag A dest 0xmac addr c lanx The command displays output similar to the following lan4 Link check failed lan4 Destination MAC address 0x00306E04945F Number of test packets sent 0 Number of test packets received without errors 0 Number of test packets received with invalid data 0 Number of test packets received with invalid packet size 0 Number of test packets received with invalid header 0 Nu...

Страница 118: ...304 reload e After switch reboots plug in the cables and display the trunk configuration as follows HP9304 show trunk Information similar to the following displays Configured trunks Trunk Type Ports 3 Server 1 5 1 6 1 7 1 8 5 Server 1 9 1 10 1 11 1 12 17 Server 2 1 2 2 19 Server 2 5 2 6 20 Server 2 7 2 8 21 Server 2 9 2 10 Operational trunks Trunk Type Ports Duplex Speed Tag Priority 3 Server 1 5 ...

Страница 119: ...figuration mode of FEC flow A sequence of MAC frames between a pair of hosts where all of the MAC frames form part of the same conversation between that pair of hosts G group capability An integer value used to determine which network physical ports can be aggregated into an FEC link aggregate H Hot Standby A method of providing high availability L LACP_AUTO Link Aggregation Control Protocol LAN L...

Страница 120: ...network cable between a network physical port and a LAN device port aggregate See link aggregate port aggregation See link aggregate Port Aggregation Protocol PAgP The proprietary port aggregation protocol developed by Cisco Systems Inc which automatically determines a bidirectional connection between two network physical ports port priority An integer value used to determine which network physica...

Страница 121: ...3 Create Failover Group page 36 Create Link Aggregate page 34 Critical Resource Analysis see CRA D data flow and load distribution 10 resetting with nwmgr command 54 dead count specifying in lanconfig ascii file 95 specifying on configuration worksheet 33 DEAD_COUNT 95 Delete Link Aggregate page 40 depot installing 18 verifying installation 59 destination MAC address algorithm 32 diagnostic map ho...

Страница 122: ..._APA_DEFAULT_PORT_MODE 89 HP_APA_FIXED_MAC 89 HP_APA_GROUP_CAPABILITY 90 HP_APA_HOT_STANDBY 90 HP_APA_INTERFACE_NAME 90 HP_APA_KEY 90 HP_APA_LACP_SYSTEM_ID_MODE 90 HP_APA_LOAD_BALANCE_MODE 90 HP_APA_MANUAL_LA 90 HP_APA_MAX_LINKAGGS 91 HP_APA_STATION_ADDRESS 91 HP_APA_USE_SYSLOG 91 hp_apaconf file parameters 89 91 startup processing 38 HP_APAPORT_CONFIG_MODE 91 HP_APAPORT_GROUP_CAPABILITY 91 HP_APA...

Страница 123: ...er ports LACP_AUTO mode 65 verifying member ports MANUAL mode 60 link partner configuring 37 verifying configuration failover group 74 verifying configuration FEC_AUTO mode 70 verifying configuration LACP_AUTO mode 64 verifying configuration MANUAL mode 60 linkloop command and corresponding nwmgr command 54 deprecation note 49 LM_RAPID_ARP 95 LM_RAPID_ARP_COUNT 95 LM_RAPID_ARP_INTERVAL 95 load bal...

Страница 124: ... ARP interval specifying in lanconfig ascii file 95 specifying on configuration worksheet 33 S sample configuration enterprise intranet client server 22 failover group 28 hot standby 25 LAN Monitor failover group with link aggregations 29 LAN_MONITOR mode 28 no switch between router and server 23 server to server 25 switch between router and server 24 server to server configuration back to back 25...

Страница 125: ...L mode 63 tip displaying Procurve command syntax 117 specifying group capability 33 troubleshooting 57 TSO and failover group 12 and link aggregate 12 status messages 83 verifying support 12 U unknown host message in failover group 78 in FEC_AUTO mode link aggregates 72 in LACP_AUTO mode link aggregate 67 in MANUAL mode link aggregate 62 V VLAN and failover group 12 106 and link aggregate 12 105 c...

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