HP Fabric Clustering System HP-UX Administrator's Guide, March 2008

Syntax Example: netfmt -N ipoib.TRC000
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^IPoIB Driver^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^@#%
Timestamp : Tue Feb 24 MST 2004 16:03:55.924206
Process ID : [ICS] Subsystem : IPOIB
User ID ( UID ) : -1 Trace Kind : PDU IN TRACE
Device ID : 9000 Path ID : -1
Connection ID : 0
Location : 00123
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
=================================== IPoIB ====================================
Source : 00-00-04-0d-fe-80-00-00-00-00-00-00-00-00-00-00-ca-02-50-02
Dest : 00-ff-ff-ff-ff-12-40-1b-ff-ff-00-00-00-00-00-00-ff-ff-ff-ff
TRACED LENGTH: 128
Date : Tue Feb 24 16:03:55.924206 MST 2004
================================ IP Header (inbound -- [ICS]) ================
Source: 192.1.1.2 (C) Dest: 192.1.1.255(C)
len: 84 ttl: 1 proto: 1 cksum: 0xee3a id: 0x86b
flags: DF tos: 0x0 hdrlen: 20 offset: 0x0 optlen: 0
-------------------------------- ICMP Header ---------------------------------
type: ECHO chksum: 0xaaac id: 12372 seq: 1
code: none
-------------------------------- User Data -----------------------------------
0: 40 3b d8 5b 00 0e 19 56 08 09 0a 0b 0c 0d 0e 0f @;.[...V........
16: 10 11 12 13 14 15 16 17 18 19 1a 1b 1c 1d 1e 1f ................
32: 20 21 22 23 24 25 26 27 28 29 2a 2b 2c 2d 2e 2f !"#$%&'()*+,-./
48: 30 31 32 33 34 35 36 37 -- -- -- -- -- -- -- -- 01234567........
Linkloop Command
Checking Connectivity Between Two Interfaces Description: This command is used to check the
connectivity from one IPoIB interface to another IPoIB interface. Use the destination IPoIB
interface’s MAC address when using this command.
Syntax: linkloop -i [ipoib_ppa][destination ipoib_MAC address]
Syntax Example:linkloop -i 9000 0x0000040cfe800000000000000002c90200001001
NOTE: The following output is an example of a successful connection between two interfaces.
Output Example:
Link connectivity to LAN station: 0x0000040cfe800000000000000002c90200001001
-- OK
NOTE: The following output is an example of an unsuccessful connection attempt between
two interfaces.
Output Example:
linkloop -i 9000 0x0000040cfe800000000000000002c90200012345
Link connectivity to LAN station: 0x0000040cfe800000000000000002c90200012345
error: get_msg2 getmsg failed, errno = 4
-- FAILED
frames sent : 1
frames received correctly : 0
reads that timed out : 1
Known Problems
This section describes known problems with IPoIB, including corresponding symptoms and
workarounds.
NetTL
Monitoring and Troubleshooting the HP-UX Host 123