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  1. #1

    High Traffic from a server

    We are a school system with 17 sites running Novell 6 and 6.5. One of my sites has a very unusual traffic flow. Every hour, for about 7 minutes the traffic flow will jump to around 1000k - 1700k at peak. All the rest of my servers will only peak out at 50k.
    I am thinking that the spike is caused by replication of NDS but I am not sure and I do not know why it is so high.
    I have done an NCP trace and on one station I am getting constant hits. I have included an attachment of the partial NCP Trace.
    Since this is summer and school is out I would like to find the answer to this traffic dilemma and I hope that someone here has the answers.

    Thanks in advance
    Hal McMahan
    Technology Coordinator
    Bradley County Schools

  2. #2
    Join Date
    Nov 2007
    Location
    The Aaland Islands N60 E20
    Posts
    6,984

    Re: High Traffic from a server

    Hmcmahan,
    > I have done an NCP trace and on one station I am getting constant hits.
    > I have included an attachment of the partial NCP Trace.
    >

    The trace file seems to be missing.

    - Anders Gustafsson (Sysop)
    The Aaland Islands (N60 E20)

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  3. #3

    Re: High Traffic from a server

    Yep
    It is.
    Lets try this again.
    ###### TRACE (Station=21 Task=2 Seq.=32, NCP 22 51) TID=89DB0340 ######
    Get Extended Vol Info (V#=1)
    ###### TRACE (Station=23 Task=0 Seq.=210, NCP 104 1) TID=9F5EC5E0 ######
    NDS Ping
    ###### TRACE (Station=23 Task=0 Seq.=211, NCP 104 2) TID=9F5EC5E0 ######
    Send NDS Frag Req/Rep (verb = Unknown NDS Verb (0xFE))
    fragHndle=0xFFFFFFFF ndsFlg=0xC0000000
    NDS Data = 01 00 00 00 00 08 00 00
    ###### TRACE (Station=70 Task=0 Seq.=163, NCP 104 1) TID=8A6E13C0 ######
    NDS Ping
    ###### TRACE (Station=70 Task=0 Seq.=164, NCP 104 2) TID=8A6E13C0 ######
    Send NDS Frag Req/Rep (verb = Unknown NDS Verb (0xFE))
    fragHndle=0xFFFFFFFF ndsFlg=0xC0000000
    NDS Data = 23 00 00 00 EA 0C 00 00
    ###### TRACE (Station=0 Task=137 Seq.=33, NCP 22 51) TID=935B9540 ######
    Get Extended Vol Info (V#=0)
    ###### TRACE (Station=70 Task=0 Seq.=165, NCP 104 2) TID=8A6E13C0 ######
    Send NDS Frag Req/Rep (verb = Unknown NDS Verb (0xFE))
    fragHndle=0xFFFFFFFF ndsFlg=0xC0000000
    NDS Data = 25 00 00 00 C8 AF 00 00
    ###### TRACE (Station=70 Task=0 Seq.=166, NCP 104 2) TID=8A6E13C0 ######
    Send NDS Frag Req/Rep (verb = Unknown NDS Verb (0xFE))
    fragHndle=0xFFFFFFFF ndsFlg=0xC0000000
    NDS Data = 24 00 00 00 00 10 00 00
    ###### TRACE (Station=21 Task=215 Seq.=0, NCP 22 51) TID=894910A0 ######
    Get Extended Vol Info (V#=1)
    ###### TRACE (Station=21 Task=2 Seq.=34, NCP 22 5) TID=89DAE300 ######
    Get Vol Num
    STR=_ADMIN
    ###### TRACE (Station=21 Task=2 Seq.=35, NCP 22 51) TID=89DAE300 ######
    Get Extended Vol Info (V#=1)
    ###### TRACE (Station=21 Task=2 Seq.=36, NCP 22 5) TID=89DAE300 ######
    Get Vol Num
    STR=_ADMIN
    ###### TRACE (Station=21 Task=2 Seq.=37, NCP 22 51) TID=89DAE300 ######
    Get Extended Vol Info (V#=1)
    ###### TRACE (Station=21 Task=2 Seq.=38, NCP 22 5) TID=89DB2380 ######
    Get Vol Num
    STR=_ADMIN

  4. #4
    Join Date
    Feb 2008
    Posts
    183

    Re: High Traffic from a server

    We are also experiencing similar NCP traffic issues, although I am aware of the culprit. It is an application containing a database backend. Running the applications on a windows share.. it works A1. On Netware.. barely functional. I have played with Sig.. OpLocks.. etc.. to no avail. The program chugs along but at a pace 10-20x slower than SMB. The number of packets passed for the same query is massive via NCB (exponentially greater).. very bizarre.

    Here's a portion of my NCP Trace:


    ###### TRACE (Station=14 Task=0 Seq.=226, NCP 104 2) TID=73E3A3C0 ######
    Send NDS Frag Req/Rep (verb = Unknown NDS Verb (0xFE))
    fragHndle=0xFFFFFFFF ndsFlg=0xC0000000
    NDS Data = 23 00 00 00 EA 0C 00 00

    ###### TRACE (Station=309 Task=5 Seq.=178, NCP 26) TID=73E3A3C0 ######
    Log Physical Record (LF=1 FH=-1386666566 Start=0xFFFF5EF0 Len=1 TO=0)

    ###### TRACE (Station=309 Task=5 Seq.=179, NCP 72) TID=73E3A3C0 ######
    Read File (FH=-1171957331 Start=0x0 Amount=12)

    ###### TRACE (Station=14 Task=0 Seq.=227, NCP 104 2) TID=73E3A3C0 ######
    Send NDS Frag Req/Rep (verb = Unknown NDS Verb (0xFE))
    fragHndle=0xFFFFFFFF ndsFlg=0xC0000000
    NDS Data = 25 00 00 00 C8 AF 00 00

    ###### TRACE (Station=309 Task=5 Seq.=180, NCP 30) TID=6C246220 ######
    Clear Physical Record (FH=11360549 Start=0xBAFFFF5E Len=-268435456)

    ###### TRACE (Station=309 Task=5 Seq.=181, NCP 72) TID=73E3A3C0 ######
    Read File (FH=-746318737 Start=0x3330F6 Amount=159)

    ###### TRACE (Station=14 Task=0 Seq.=228, NCP 104 2) TID=6C246220 ######
    Send NDS Frag Req/Rep (verb = Unknown NDS Verb (0xFE))
    fragHndle=0xFFFFFFFF ndsFlg=0xC0000000
    NDS Data = 24 00 00 00 00 10 00 00

    ###### TRACE (Station=309 Task=5 Seq.=182, NCP 26) TID=6C246220 ######
    Log Physical Record (LF=1 FH=-1386666566 Start=0xFFFF01C2 Len=1 TO=0)

    ###### TRACE (Station=309 Task=5 Seq.=183, NCP 72) TID=6C246220 ######
    Read File (FH=-1171957331 Start=0x0 Amount=12)

    ###### TRACE (Station=309 Task=5 Seq.=184, NCP 30) TID=6C246220 ######
    Clear Physical Record (FH=11360549 Start=0xBAFFFF01 Len=-1040187392)

    ###### TRACE (Station=309 Task=5 Seq.=185, NCP 72) TID=6C246220 ######
    Read File (FH=-746318737 Start=0xD6DA3 Amount=159)

    ###### TRACE (Station=309 Task=5 Seq.=186, NCP 26) TID=6C246220 ######
    Log Physical Record (LF=1 FH=-1386666566 Start=0xFFFFD422 Len=1 TO=0)

    ###### TRACE (Station=309 Task=5 Seq.=187, NCP 72) TID=6C246220 ######
    Read File (FH=-1171957331 Start=0x0 Amount=12)

    ###### TRACE (Station=309 Task=5 Seq.=188, NCP 30) TID=6C246220 ######
    Clear Physical Record (FH=11360549 Start=0xBAFFFFD4 Len=570425344)

    ###### TRACE (Station=309 Task=5 Seq.=189, NCP 72) TID=6C246220 ######
    Read File (FH=-746318737 Start=0x27BE05 Amount=159)


    Any input would be greatly appreciated.

    kevgo

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