Playing with lanadmin & lanscan

February 9, 2010 — 6 Comments

Current release of HP-UX, 11.31, has the handy nwmgr to handle networking tasks, but for years instead of nwmgr we’ve been playing with lanscan and lanadmin (linkloop as well) to perform many networking tasks on the 11.23 release and previous ones. And surely some of you, just like myself, still have 11iv2 systems up and running. Following is a small list of tips and tasks for lanadmin from one of my “how-to-do” files.

  • Lanscan: Basically is used to get information about the LAN interfaces.
root@sap01:~# lanscan
Hardware Station        Crd Hdw   Net-Interface  NM  MAC       HP-DLPI DLPI
Path     Address        In# State NamePPA        ID  Type      Support Mjr#
0/0/0/1/0 0x001A4B07F002 0   UP    lan0 snap0     1   ETHER     Yes     119
0/0/0/1/1 0x001A4B07F003 1   UP    lan1 snap1     2   ETHER     Yes     119
0/0/1/1/0 0x0018FE2D7EE7 2   UP    lan2 snap2     3   ETHER     Yes     119
0/0/9/1/0 0x0018FE2D7EF4 3   UP    lan3 snap3     4   ETHER     Yes     119
0/0/10/1/0 0x000CFC0046B9 4   UP    lan4 snap4     5   ETHER     Yes     119
0/0/12/1/0 0x000CFC004672 5   UP    lan5 snap5     6   ETHER     Yes     119
LinkAgg0 0x000000000000 900 DOWN  lan900 snap900 9   ETHER     Yes     119
LinkAgg1 0x000000000000 901 DOWN  lan901 snap901 10  ETHER     Yes     119
LinkAgg2 0x000000000000 902 DOWN  lan902 snap902 11  ETHER     Yes     119
LinkAgg3 0x000000000000 903 DOWN  lan903 snap903 12  ETHER     Yes     119
LinkAgg4 0x000000000000 904 DOWN  lan904 snap904 13  ETHER     Yes     119

A verbose version can be obtained with the -v switch, but for me this switch has a glitch since you can’t query for a single LAN card:

root@sap01:~# lanscan -v
Hardware Station        Crd Hdw   Net-Interface  NM  MAC       HP-DLPI DLPI
Path     Address        In# State NamePPA        ID  Type      Support Mjr#
0/0/0/1/0 0x001A4B07F002 0   UP    lan0 snap0     1   ETHER     Yes     119

Extended Station                           LLC Encapsulation
Address                                    Methods
0x001A4B07F002                             IEEE HPEXTIEEE SNAP ETHER NOVELL 

Driver Specific Information

There are other options for lanscan that can be used to obtain more simple info in a “script friendly” list format:

root@sap01:~# lanscan -a
root@sap01:~# lanscan -i
lan0 snap0
lan1 snap1
lan2 snap2
lan3 snap3
lan4 snap4
lan5 snap5
lan900 snap900
lan901 snap901
lan902 snap902
lan903 snap903
lan904 snap904
  • Lanadmin: The lanadmin, acording to its man page, allow you to:

+  Display and change the station address.
+  Display and change the 802.5 Source Routing options (RIF).
+  Display and change the maximum transmission unit (MTU).
+  Display and change the speed setting.
+  Clear the network statistics registers to zero.
+  Display the interface statistics.
+  Display the interface usage information.
+  Reset the interface card, thus executing its self-test.
+  Configure VLANs on the cards that support VLAN.

It can be used in two ways, if invoked with no options from the shell it will present a menu style interface where different tasks can be performed. Following is am example to illustrate.

                       Tue , Feb 9,2010  14:22:27

               Copyright 1994 Hewlett Packard Company.
                       All rights are reserved.

Test Selection mode.

        lan      = LAN Interface Administration
        menu     = Display this menu
        quit     = Terminate the Administration
        terse    = Do not display command menu
        verbose  = Display command menu

Enter command: lan

LAN Interface test mode. LAN Interface PPA Number = 0

        clear    = Clear statistics registers
        display  = Display LAN Interface status and statistics registers
        end      = End LAN Interface Administration, return to Test Selection
        menu     = Display this menu
        ppa      = PPA Number of the LAN Interface
        quit     = Terminate the Administration, return to shell
        reset    = Reset LAN Interface to execute its selftest
        specific = Go to Driver specific menu

Enter command: display

                      LAN INTERFACE STATUS DISPLAY
                       Tue , Feb 9,2010  14:22:31

PPA Number                      = 0
Description                     = lan0 HP PCI Core I/O 1000Base-T Release B.11.23.0712.01
Type (value)                    = ethernet-csmacd(6)
MTU Size                        = 1500
Speed                           = 1000000000
Station Address                 = 0x14c2650091
Administration Status (value)   = up(1)
Operation Status (value)        = up(1)
Last Change                     = 419
Inbound Octets                  = 120454615
Inbound Unicast Packets         = 863761
Inbound Non-Unicast Packets     = 4327
Inbound Discards                = 0
Inbound Errors                  = 0
Inbound Unknown Protocols       = 12
Outbound Octets                 = 145033817
Outbound Unicast Packets        = 1285500
Outbound Non-Unicast Packets    = 221
Outbound Discards               = 0
Outbound Errors                 = 0
Outbound Queue Length           = 0
Specific                        = 655367

Press  to continue

Ethernet-like Statistics Group

Index                           = 1
Alignment Errors                = 0
FCS Errors                      = 0
Single Collision Frames         = 0
Multiple Collision Frames       = 0
Deferred Transmissions          = 0
Late Collisions                 = 0
Excessive Collisions            = 0
Internal MAC Transmit Errors    = 0
Carrier Sense Errors            = 0
Frames Too Long                 = 0
Internal MAC Receive Errors     = 0

LAN Interface test mode. LAN Interface PPA Number = 0

        clear    = Clear statistics registers
        display  = Display LAN Interface status and statistics registers
        end      = End LAN Interface Administration, return to Test Selection
        menu     = Display this menu
        ppa      = PPA Number of the LAN Interface
        quit     = Terminate the Administration, return to shell
        reset    = Reset LAN Interface to execute its selftest
        specific = Go to Driver specific menu

Enter command:

When used with options from the command line lanadmin can perform the same tasks as as in the menu interface on each LAN card. Here are some of the most common features I’ve been using for years:

· Display interface info:

root@sap01:~# lanadmin -x card_info  1
*********** Version Information **********
Driver version: B.11.23.0712
Firmware version: N/A
Chip version: 0x3
PCI Sub-System ID: 0x12a6
PCI Sub-Vendor ID: 0x103c
Board Revision: D4503807
Software Key: 0
Engineering Date Code: A-4731

********** Card Setting ***********
Auto Negotiation: On
Flow Control: On
Send Max Buf Descriptors: 1
Recv Max Buf Descriptors: 1
Send Coalesced Ticks: 150
Recv Coalesced Ticks: 0

· Display Auto-Port Aggregation status:

root@sap01:~# lanadmin -x -v 900
Link Aggregate PPA #      : 900
Number of Ports           : 2
Ports PPA                 : 0 1
Link Aggregation State    : LINKAGG MANUAL
Load Balance Mode         : Hot Standby (LB_HOT_STANDBY)


· Show speed settings:

root@sap01:/# lanadmin -x 1
Speed = 1000 Full-Duplex.
Autonegotiation = On.


· Creating an Aggregation link:

roo@sap01:/# lanadmin -X -a 1 2 900

· Show load balancing algorithm in APA:

root@sap02:/etc# lanadmin -x -l 900
Load Balancing = Hot Standby (LB_HOT_STANDBY)

· Display MAC address:

root@sap01:~# lanadmin -a 1  
Station Address                 = 0x001a4b07f003

· Display driver and adapter statistics:

root@sap01:/# lanadmin -x stats drv 1
****** Driver Statistics ******        
In Packet Error                                        0
Out Packet Error                                       0
Loopback packets                                      44
Link Down events                                       0

****** Host Command Statistics ******  
nicCmdsDelMCastAddr                                    0
nicCmdsSetMACAddr                                      0
nicCmdsSetPromiscMode                                  0
nicCmdsSetMulticastMode                                0
nicCmdsClearStats                                      1

****** NIC Events Statistics ******    
nicEventsFirmwareOperational                           0
nicEventsStatsUpdated                                  0
nicEventsLinkStateChanged                              1
nicEventsMCastListUpdated                              0

****** Interface Statistics ******     
ifIndex                                                2
ifType                                                 6
ifMtu                                               1500
ifSpeed                                       1000000000
ifAdminStatus                                          1
ifOperStatus                                           1
ifLastChange                                          36
ifInDiscards                                           0
ifInErrors                                             0
ifInUnknownProtos                                  87777
ifOutDiscards                                          0
ifOutErrors                                            0
ifOutQLen                                              0
ifInOctets_low                                1205643914
ifInOctets_high                                        0
ifInUcastPkts_low                                8695826
ifInUcastPkts_high                                     0
ifInMulticastPkts_low                                  0
ifInMulticastPkts_high                                 0
ifInBroadcastPkts_low                              87777
ifInBroadcastPkts_high                                 0
ifOutOctets_low                               1200310422
ifOutOctets_high                                       0
ifOutUcastPkts_low                               8696015
ifOutUcastPkts_high                                    0
ifOutMulticastPkts_low                                 0
ifOutMulticastPkts_high                                0
ifOutBroadcastPkts_low                                 0
ifOutBroadcastPkts_high                                0

· Show Vital Product Data, a really funny name ;-) don’t you think?

root@sap01:/# lanadmin -x vpd 0
*********** Vital Product Data **********
Product Description: PCI/PCI-X 10/100/1000BT Dual Ethernet Adapter
Part Number: A7012-60601
Engineering Date Code: A-4731
Part Serial Number: 001A4B07F002
Misc. Information: 7.5W
Mfd. Date: 4749
Checksum: 0xb
EFI Version: 03048
ROM Firmware Version: N/A
Asset Tag: N/A

· Show card type:

root@sap01:~# lanadmin -x type 1     


And we are finished. Probably I’m forgetting a more interesting uses of lanadmin if you have other everyday use please comment :-)



6 responses to Playing with lanadmin & lanscan


    I’m trying to change the link speed from 100Mbit Full Duplex to Auto Negotiation on lan900. But it returns with: ‘Error: Could not service request’. Do you know how I can change the link speed? Or should I disable APA, change link speed on physical lan interfaces and then enable APA?

    This is on HP-UX 11.23 btw.


    Already solved it.

    Need to stop hplm and hpapa. Change the connection speed in /etc/rc.config.d/hpietherconf and start hplm and hpapa.

    HTTP:// January 12, 2013 at 10:37

    I’m still learning from you, but I’m improving myself. I definitely enjoy reading all

    that is posted on your blog.Keep the information coming.

    enjoyed it!


    Hello, Thanks for your information on LanAdmin, in my case I need to create a script [commandline] to do a reset on a particular PPA. “in my case ppa 2”.

    Usually I perform this on HP-UX 11.23 using:
    – lan
    – ppa 2
    – reset

    I would like to [use a command line with arguments] and script this sequence instead.
    Any suggestions are appreciated.
    Thanks in advance.


      Thanks for your comment Jonas. Honestly I have not used HP-UX for almost four years (since I move to linux and VMware administration and consultancy) so I cannot suggest a viable way to do what you way. Anyway my suggestion would be to look into lanadmin documentation, if I remember correctly I had some nice examples for scripting.

      Reynaldo Abimael Aceves Chamosa June 8, 2015 at 04:47

      @Jonas Matt
      I use the following command to query the interface statistics inside a shell script to automate this task, I guess it could work with the reset option you have mentioned above.

      To displayde statistics of the interface:
      echo “lan ppa 2 display quit” | lanadmin

      To clear de statistics of the interface:
      echo “lan ppa 2 clear quit” | lanadmin

      In fact it is really simple.

      I hope it helps you.

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