HP3000-L Archives

August 2003, Week 4

HP3000-L@RAVEN.UTC.EDU

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Subject:
From:
James P Hofmeister <[log in to unmask]>
Reply To:
Date:
Fri, 22 Aug 2003 05:15:19 GMT
Content-Type:
text/plain
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text/plain (231 lines)
Hello all @ 3000-l,

RE: Printer Spooling Hold Up Reasons

--------------------------------------------------
We have a long distance circuit from our HP3000 in
 the U.S. to China over a frame-relay circuit.
We're on 7.0 pp2.  Oftentimes individual printers
drop the spooler, startspool fixes it.
--------------------------------------------------

Assuming you are using hp's network printing and have a printer at the
 other end that supports PCL and has either an internal or external
 JETDIRECT card...

I would tend to start network trouble shooting at 2 locations... First
 is at the frame-relay console.  I would want to look at the link
 statistics for the WAN link (similar to what you can do on the 3000
 with :linkcontrol @;status=all).  You would want to identify carrier
 losses, crc errors, etc. and resolve any significant issues with the
 frame-relay link service provider.

Second is I would investigate the network status on the 3000 system:

A) Any indication of resource issues:

:nettool.net.sys;info="res;di;quit"
FRI, AUG 22, 2003,  1:10:13 AM
 Item  Subsystem   Name   G/N  Description      Used   High    Max
____________________________________________________________________

  1    NS XPORT  CP_POOL_ (G)  Control Buf Pool    0      1    300 :)
  2    NS XPORT  1536___S (G)  Inbound Buf Pool   86    254   1365 :)
  3    NS XPORT  LAN1____ (N)  Outbnd  Buf Pool    0     14    512 :)
  4    NS XPORT  LOOP____ (N)  Outbnd  Buf Pool    0     26    128 :)
  5    NS XPORT  BT100___ (N)  Outbnd  Buf Pool    0      2    128 :)
  6    NS XPORT  UDP      (G)  GProt  Msg  Pool    0    N/A    512 :)
  7    NS XPORT  PXP      (G)  GProt  Msg  Pool    0    N/A    660 :)
  8    NS XPORT  PROBE    (G)  CM Prot Msg Pool    0    N/A    677 :)
  9    NS XPORT  PROBE    (G)  CM Prot Msg Pool    0    N/A    677 :)
 10    NS XPORT  IP_NI    (G)  IP-NI  Msg  Pool    0    N/A   2048 :)
 11    NS XPORT  IP_NI    (G)  IP-NI  Msg  Pool    0    N/A   2048 :)
 12    NS XPORT  IP_NI    (G)  IP-NI  Msg  Pool    0    N/A   2048 :)
 13    NS XPORT           (G)  Node  Name Cache    0     17    360 :)
 14    NS XPORT           (G)  TCP Control pool    0     27   2048 :)

B) Determine if you see any significant issues with the 3000 network
Link:

:linkcontrol @;status=all
Linkname: SYSLINK   Linktype: PCI 100BT        Linkstate: CONNECTED
Physical Path:              0/0/0/0
Current Station Address:    00-30-6E-0C-4B-C6
Default Station Address:    00-30-6E-0C-4B-C6
Current Multicast Addresses:
 09-00-09-00-00-01

Transmit bytes               10816967    Receive bytes              3178758169
Transmits                       85781    Receives unicast                29448
Transmits no error              85693    Receives broadcast           31753243
Transmits dropped                   0    Receives multicast              28255
Transmits deferred               2224    Receives no error            30076179
Transmits 1 retry                 515    Recv CRC error                      0
Transmits >1 retry                451    Recv Maxsize error                  0
Trans 16 collisions                50    Recv dropped: addr            1734620
Trans late collision                0    Recv dropped: buffer                0
Trans underruns                     0    Recv dropped: descr                 0
Carrier losses                      0    Recv dropped: other               147
Trans jabber timeout                0    Recv watchdg timeout                0
Link disconnects                    0    Recv collisions                     0
Link speed                         10    Recv overruns                       0
Link duplex                      Half    Link auto sensed                   No
Link mode               10Base-T Core    Secs since clear               219642

Linkname: BT100LNK  Linktype: PCI 100BT        Linkstate: CONNECTED
Physical Path:              0/2/0/0
Current Station Address:    00-30-6E-06-03-9D
Default Station Address:    00-30-6E-06-03-9D
Current Multicast Addresses:
 09-00-09-00-00-01

Transmit bytes                   1163    Receive bytes                  724641
Transmits                          21    Receives unicast                    9
Transmits no error                 21    Receives broadcast               5800
Transmits dropped                   0    Receives multicast                  7
Transmits deferred                  0    Receives no error                5816
Transmits 1 retry                   0    Recv CRC error                      0
Transmits >1 retry                  0    Recv Maxsize error                  0
Trans 16 collisions                 0    Recv dropped: addr                  0
Trans late collision                0    Recv dropped: buffer                0
Trans underruns                     0    Recv dropped: descr                 0
Carrier losses                      0    Recv dropped: other                 0
Trans jabber timeout                0    Recv watchdg timeout                0
Link disconnects                    0    Recv collisions                     0
Link speed                        100    Recv overruns                       0
Link duplex                      Full    Link auto sensed                  Yes
Link mode            100Base-TX Addon    Secs since clear               219639

C) Determine frequency of TCP "re-transmitted segments":

: nettool.net.sys;info="status;tcpstat;tcpglobal @;quit"

Local IP Address  :    @
 ============================================================================
TCP GLOBAL Statistics
Current Time:    FRI, AUG 22, 2003,  1:12:05 AM
 ============================================================================
TCP GLOBAL Statistics
Maximum number of connections allowed :     4096
Maximum number of sockets allowed :     4096
Number of connections currently open :        1
Maximum re-transmissions per packet :        8
Cumulative Statistics
---------------------
    . Total active opens :       69
    . Total passive opens :      475
    . Total inbound segments :    17044
    . Total outbound sengments :    23927
    . Total re-transmitted segments :      727  <<< here >>>
    . Total number of RESETS sent :     2945
    . Total connection failures :       27

D) Further investigation by enabling and reading the NMLG files:

Logging:
           Class    Console Disk
Subsystem  Name     Logging Logging  Event
SUB0003    CLAS0001  [Y]     [Y]     Serious internal error
Network    CLAS0002  [Y]     [Y]     Internal error/operator attention
Transport  CLAS0003  [N]     [Y]     Non-critical errors
           CLAS0004  [Y]     [Y]     Nodal messages (start/stop)
           CLAS0005  [N]     [Y]     Informative messages
           CLAS0006  [N]     [Y]     Statistical information

:switchnmlog update

:nmdump.pub.sys
  WOULD YOU LIKE TO FORMAT A LOG OR TRACE FILE? 1 = LOG, 2 = TRACE  > 1
  WHICH SUBSYSTEMS' RECORDS WOULD YOU LIKE TO FORMAT? (ALL) > 3
  WOULD YOU LIKE TO CHANGE ANY SUBSYSTEM OPTIONS? (NO)  > {cr}
  WHAT IS THE INPUT FILE NAME?  (*NMDUMPEQ) > NMLG0686.pub.sys
  WHAT IS THE OUTPUT FILE NAME? ($STDLIST) > {cr}
  WOULD YOU LIKE TO SPECIFY A TIME RANGE? (NO) > {cr}

Here is a TCP outbound retransmission indicating that the remote host
 did not reply with an Acknowledge before our timers popped and we
 retransmitted the data. If you find many TCP Retransmission it is an
 indication that the link quality or performance is poor.

**********************************************************************
* WED, MAY 10, 2000,  2:11:22.3 PM                       NETXPORT(3) *
*--------------------------------------------------------------------*
*    Event           : OUTBOUND                                      *
*    Entity          : TCP                                           *
*    Internal Event  : Retransmission                                *
*    Log Class       : Informative                                   *
*    Port ID/PIN/KSO : $00000840                                     *
*    Location        : 16301           Parameter       : $8687B000   *
* Info Section (hex):                                                *
*    0000:  0067   0002   003C   3FAD   0000   0840   0005   8687    *
*    0008:  B000   0001                                              *
*--------------------------------------------------------------------*


Here is a TCP Retransmission Threshold Exceeded indicating that the
 remote host did not reply with an Acknowledge before our timers popped
 multiple times as per the TCP timer configuration.

**********************************************************************
* WED, MAY 10, 2000,  2:12:22.3 PM                       NETXPORT(3) *
*--------------------------------------------------------------------*
*    Event           : INTERNAL ERROR                                *
*    Entity          : TCP                                           *
*    Internal Event  : Retransmission Threshold Exceeded             *
*    Log Class       : Non-critical error                            *
*    Port ID/PIN/KSO : $00000840                                     *
*    Location        : 14101           Parameter       : $00001D8C   *
* Info Section (hex):                                                *
*    0000:  0067   0003   01E1   3715   0000   0840   0003   0000    *
*    0008:  1D8C   0001                                              *
*--------------------------------------------------------------------*


TCP Statistics can tell you a great deal about the connection history
 of a TCP connection:
**********************************************************************
* THU, AUG 21, 2003, 10:10:01.4 PM                       NETXPORT(3) *
*--------------------------------------------------------------------*
*    Event           : INFORMATIVE                                   *
*    Entity          : TCP                                           *
*    Internal Event  : Statistics                                    *
*    Log Class       : Statistics                                    *
*    Port ID/PIN/KSO : $0000A260                                     *
*    Location        : 19901           Parameter       : $00000000   *
* Info Section (hex):                                                *
*    0000:  0067   001C   0051   4DBD   0000   A260   0006   0000    *
*    0008:  0000   0001                                              *
*--------------------------------------------------------------------*
* Statistics:                                                        *
*    Local_sap       : $0019           Remote_sap      : $EDD5       *
*    Local_ip_addr   : $1071095C       Remote_ip_addr  : $0F2D599B   *
*    IN_Total          : 13            OUT_Total         : 14        *
*    IN_Bytes          : 9             OUT_Bytes         : 588       *
*    IN_PM_PKTS        : 4             OUT_PM_PKTS       : 9         *
*    IN_User_PKTS      : 8             OUT_User_PKTS     : 5         *
*    IN_CKsum_Error    : 0             OUT_RTX           : 0         *
*    IN_ICMP_Msgs      : 0             IN_Other          : 1         *
*    Connection_Info   : 0             Control           : 0         *
*    Send              : 5             Receive_Reply     : 8         *
*    Flush_sends       : 0                                           *
...
**********************************************************************

I hope this helps,

Regards,

James Hofmeister
Email: <first>.<last>@hp.com
Hewlett Packard - Global Solutions Engineering (WTEC)
P.S. My Ideals are my own, not necessarily my employers.


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