Cisco 3640 Router, Cisco Express Forwarding (CEF)
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Cisco 3640 Router, Cisco Express Forwarding (CEF)

Selamlar, Loglarda memory veya diger tipte bir hata yok. NAT yapiyor ama fazla bir adres cevrimi yok. Yaklasik 1Mbit civarinda bir trafik geciyor. Virus, p2p vs yok gozukuyor. Cisco Express

  1. #1
    Cumbur Guest

    Standart Cisco 3640 Router, Cisco Express Forwarding (CEF)

    Selamlar,

    Loglarda memory veya diger tipte bir hata yok. NAT yapiyor ama fazla bir
    adres cevrimi yok. Yaklasik 1Mbit civarinda bir trafik geciyor.

    Virus, p2p vs yok gozukuyor. Cisco Express Forwarding (CEF) calisiyor. Access listleri kaldirdim ama
    sonuc fazla degismedi.

    En fazla IP Input kullaniyor gozukuyor ama o da 2.4% bile gecmiyor toplam
    ise %40'i gecmiyor.

    41 103532 16010 6466 2.12% 2.70% 2.35% 0 IP Input

    Yorumunuz var midir ?

    Kolay gelsin.

    Tesekkurler,
    Cumhur

    IOS: c3640-jsx-mz.122-8.T5.bin

    CPU utilization for five seconds: 89%/82%; one minute: 95%; five minutes:
    94%
    PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process
    1 383720 3192442 120 0.00% 0.00% 0.00% 0 Load Meter

    2 30460 731 41668 0.40% 0.93% 0.65% 130 Virtual Exec

    3 38459604 3066712 12541 0.00% 0.18% 0.16% 0 Check heaps

    4 0 1 0 0.00% 0.00% 0.00% 0 Chunk Manager

    5 26208 22868 1146 0.00% 0.00% 0.00% 0 Pool Manager

    6 0 2 0 0.00% 0.00% 0.00% 0 Timers

    7 56 2558 21 0.00% 0.00% 0.00% 0 Serial
    Backgroun
    8 49728 3187479 15 0.00% 0.00% 0.00% 0
    ALARM_TRIGGER_SC
    9 0 1 0 0.00% 0.00% 0.00% 0 OIR Handler

    10 7988 532139 15 0.00% 0.00% 0.00% 0 Environmental
    mo
    11 2166668 3365539 643 0.00% 0.00% 0.00% 0 ARP Input

    12 0 1 0 0.00% 0.00% 0.00% 0 HC Counter
    Timer
    13 12 49 244 0.00% 0.00% 0.00% 0 DDR Timers


    c3640_bb001#show proc cpu hi
    111
    9999999000999999999999999999999999999999999888899999999999
    8899999000999558888888888666665555222223333999900000222222
    100 **********************************
    90 **********************************************************
    80 **********************************************************
    70 **********************************************************
    60 **********************************************************
    50 **********************************************************
    40 **********************************************************
    30 **********************************************************
    20 **********************************************************
    10 **********************************************************
    0....5....1....1....2....2....3....3....4....4....5....5....
    0 5 0 5 0 5 0 5 0 5

    CPU% per second (last 60 seconds)

    11 1111 1 11 1 1 11 1 1 1
    0090000909009999099999990999999900990999999999090999989887
    0090000909009739099999940999999700990989889999090999280507
    100 *##*########** #***#*#* ##********#*#*****###*#*####
    90 ####################################################****
    80 ########################################################**
    70 ##########################################################
    60 ##########################################################
    50 ##########################################################
    40 ##########################################################
    30 ##########################################################
    20 ##########################################################
    10 ##########################################################
    0....5....1....1....2....2....3....3....4....4....5....5....
    0 5 0 5 0 5 0 5 0 5

    CPU% per minute (last 60 minutes)
    * = maximum CPU% # = average CPU%

    1
    0854322244899888877788887653321235578888898888888874322346788887777877
    0599426516897642186420008979389622373152456455111489743700710509975488
    100 * ** *
    90 ** **** * ** ** *
    80 #* *#******* ***** **************** ************
    70 #* *######****##*** *#############** *####**#*#*#
    60 ##* #########*#####** ###############* *############
    50 ##** *###############** **###############** *############
    40 ###* **#################* *#################** **#############
    30 ####* ***##################*** **###################* *##############
    20 #####***#####################***#####################**###############
    10 ######################################################################
    0....5....1....1....2....2....3....3....4....4....5....5....6....6....7.
    0 5 0 5 0 5 0 5 0 5 0 5 0

    CPU% per hour (last 72 hours)
    * = maximum CPU% # = average CPU%

    Memory:
    Total: 82567936, Used: 14521204, Free: 68046732
    PID TTY Allocated Freed Holding Getbufs Retbufs Process
    0 0 104972 1848 7736532 0 0 *Init*

    0 0 936 2787124 936 0 0 *Sched*

    0 0 99297660 86704712 183504 1355808 320 *Dead*

    1 0 284 284 3828 0 0 Load Meter

    2 130 1425072 1532852 18880 0 0 Virtual Exec

    3 0 0 9484 6828 0 0 Check heaps

    4 0 96 0 6924 0 0 Chunk
    Manager


    Show Ver:
    Cisco Internetwork Operating System Software
    IOS (tm) 3600 Software (C3640-JSX-M), Version 12.2(8)T5, RELEASE SOFTWARE
    (fc1)
    TAC Support: [url]http://www.cisco.com/tac[/url]
    Copyright (c) 1986-2002 by cisco Systems, Inc.
    Compiled Thu 20-Jun-02 22:35 by ccai
    Image text-base: 0x60008930, data-base: 0x6187C000

    ROM: System Bootstrap, Version 11.1(20)AA2, EARLY DEPLOYMENT RELEASE
    SOFTWARE (fc1)

    c3640_bb001 uptime is 26 weeks, 2 days, 20 hours, 29 minutes
    System returned to ROM by power-on
    System restarted at 15:22:16 GMT+2 Mon Jan 3 2005
    System image file is "flash:c3640-jsx-mz.122-8.T5.bin"

    cisco 3640 (R4700) processor (revision 0x00) with 125952K/5120K bytes of
    memory.
    Processor board ID 15662101
    R4700 CPU at 100Mhz, Implementation 33, Rev 1.0
    Channelized E1, Version 1.0.
    Bridging software.
    X.25 software, Version 3.0.0.
    SuperLAT software (copyright 1990 by Meridian Technology Corp).
    TN3270 Emulation software.
    Primary Rate ISDN software, Version 1.1.
    1 Ethernet/IEEE 802.3 interface(s)
    32 Serial network interface(s)
    1 Channelized E1/PRI port(s)
    DRAM configuration is 64 bits wide with parity disabled.
    125K bytes of non-volatile configuration memory.
    24576K bytes of processor board System flash (Read/Write)

    Configuration register is 0x2102

  2. #2
    huseyin Guest

    Standart re: Cisco 3640 Router, Cisco Express Forwarding (CEF)

    Selam
    Network de virus olabilir düşüncesindeyim
    Sen bunu anlamak için
    Sh buffer old packet komutunu kullana bilirsin
    Veya
    İnt eth portu altında ip accounting komutunu aktif edip
    Sh ip account diyerek paketlere bakmanda fayda var

  3. #3
    Murat Özalp Guest

    Standart re: Cisco 3640 Router, Cisco Express Forwarding (CEF)

    Benzeri başıma gelmişti. Windows paylaşım portlarını kapatan access-list yazıp,

    tüm arabirimlere uyguladığımda düzeldi sorun..

    MS paylaşımını kullanarak yayılan virüslerin saldırısı göçertmişti bizimkini çünkü.

  4. #4
    Cumbur Guest

    Standart re: Cisco 3640 Router, Cisco Express Forwarding (CEF)

    Cevap veren arkadaslara tesekkuler,

    Daha once de dedigim gibi virus vs ye rastlamadim, belki IOS bug'idir. c3640
    kullanan varsa bana Trafik ve CPU durumlarini yazabilir mi ?

    tesekkurler,

    iyi calismalar.
    cumhur

  5. #5
    Ilker Temir Guest

    Standart re: Cisco 3640 Router, Cisco Express Forwarding (CEF)

    Cumhur,

    Boyle bir sorunun bugdan kaynaklanma olasiligi elbette var. Ancak
    pratikte sorun cikartabilecek o kadar cok sebep var ki bug olma
    ihtimalini bunlarin yaninda cok cok dusuk bir ihtimal olarak goruyorum.

    Daha once yazildigi gibi akla ilk gelen yogun trafik. Yuksek CPU
    kullaniminin nedeni interruptlar olarak gozukuyor, bu da sorunun gecen
    trafikle ilgili olabilecegini dusunduruyor.

    o Netflow kullanarak router uzerinden gecen trafigi inceledin mi? Eger
    yapmadiysan ilk yapman gereken bu. Tum interfaceler altinda 'ip
    route-cache flow' komutunu aktive ettikten sonra, 'show ip cache flow'
    ciktisinin ne gosteridigini incele.

    Ayrica

    o "show ip nat trans" ciktisi ne gosteriyor?
    o "show interfaces" ciktisinda neler goruyorsun?

    Ilker

  6. #6
    Aydin KOCAK Guest

    Standart re: Cisco 3640 Router, Cisco Express Forwarding (CEF)

    Merabalar;
    Daha once boyle bir olay bende 3661 de oldu virus falan olabilir
    dedik ama en sonunda sorunun taktigimiz oem ramlardan oldugunu
    anladik onlari cikarinca hersey duzeldi.

    Iyi Calismalar,
    Aydin KOCAK.

  7. #7
    Cumbur Guest

    Standart re: Cisco 3640 Router, Cisco Express Forwarding (CEF)

    Merhabalar Aydin Bey,

    Tesekkurler, Ilker bey de NAT vs uzerinde durmustu. Cumartesi gecesi
    trafigin yogun oldugu sirada NAT,I access listleri ve diger cpu'ya etki
    edecek paramaterleri kaldirdim. Lakin CPU %3-5 den fazla asagi dusmedi,
    dedigim gibi tum islemlerin % degerlerini toplayinca %30-40 ustune
    cikamiyordum.

    Musait bir zamanda tavsiyenizi deneyip sonuclarini bildirecegim.

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