Explain this traceroute?

Discussion in 'Cisco' started by lAwBoY, Sep 16, 2006.

  1. lAwBoY

    lAwBoY

    Joined:
    Aug 16, 2006
    Messages:
    15
    Tracing route to www.singnet.com.sg [165.21.74.59]
    over a maximum of 30 hops:

    1 1 ms 1 ms 1 ms cm171.delta115.maxonline.com.sg [59.189.115.171]

    2 14 ms 10 ms 9 ms 10.43.128.1
    3 25 ms 10 ms 10 ms 172.20.43.129
    4 24 ms 7 ms 10 ms 172.26.43.1
    5 17 ms 11 ms 14 ms 172.20.8.129
    6 12 ms 12 ms 9 ms 203.117.161.253
    7 149 ms 207 ms 211 ms vlan913-an-cat6k-ts-2-rsm1.starhub.net.sg [203.1
    18.7.4]
    8 16 ms 16 ms 15 ms vlan917-cat6k-ts2-r2.starhub.net.sg [203.118.1.2
    35]
    9 18 ms 16 ms 14 ms ge3-0-gsrts1.starhub.net.sg [203.118.1.6]
    10 10 ms 12 ms 13 ms pos1-0-gsrtl1.starhub.net.sg [203.118.0.241]
    11 12 ms 15 ms 32 ms 203.118.2.20
    12 18 ms 17 ms 17 ms 165.21.49.109
    13 255 ms 298 ms 364 ms FE-3-0.aljunied.singnet.com.sg [165.21.12.85]
    14 35 ms 45 ms 15 ms www.singnet.com.sg [165.21.74.59]


    Can someone explain to me how come on hop 13
    i seeing 255 ms 298 ms 364 ms

    and on hop 14
    im seeing 35 ms 45 ms 15 ms

    I thought when doing tracerouter. The host will ping to every host till it reaches the final destination. If that is the case i should be seeing that on hop 14, the response time should be higher than 255ms, why am i seeing 35/45/15 ms instead
     
    lAwBoY, Sep 16, 2006
    #1
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  2. lAwBoY

    swapnendu

    Joined:
    Sep 13, 2006
    Messages:
    57
    do two individual traces on 165.21.12.85 and 165.21.74.59 ...the packet must be following different routes to these IPs...which means tht to reach 165.21.74.59 , u wont be following a route via 165.21.12.85 ...there must be some better route to 165.21.74.59 and hence the lower latency for 165.21.74.59...

    let me knw ur findings on this...
     
    swapnendu, Sep 16, 2006
    #2
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  3. lAwBoY

    lAwBoY

    Joined:
    Aug 16, 2006
    Messages:
    15

    Tracing route to www.singnet.com.sg [165.21.74.59]
    over a maximum of 30 hops:

    1 1 ms 1 ms 1 ms cm171.delta115.maxonline.com.sg [59.189.115.171]

    2 11 ms 22 ms 15 ms 10.43.128.1
    3 12 ms 8 ms 14 ms 172.20.43.129
    4 121 ms 9 ms 14 ms 172.26.43.1
    5 13 ms 30 ms 7 ms 172.20.8.129
    6 24 ms 16 ms 14 ms 203.117.161.253
    7 28 ms 13 ms 14 ms vlan913-an-cat6k-ts-2-rsm1.starhub.net.sg [203.1
    18.7.4]
    8 16 ms 11 ms 12 ms vlan917-cat6k-ts2-r2.starhub.net.sg [203.118.1.2
    35]
    9 13 ms 21 ms 17 ms ge3-0-gsrts1.starhub.net.sg [203.118.1.6]
    10 21 ms 26 ms 20 ms pos1-0-gsrtl1.starhub.net.sg [203.118.0.241]
    11 161 ms 10 ms 16 ms 203.118.2.20
    12 19 ms 15 ms 15 ms 165.21.49.109
    13 20 ms 21 ms 19 ms FE-3-0.aljunied.singnet.com.sg [165.21.12.85]
    14 19 ms 23 ms 25 ms www.singnet.com.sg [165.21.74.59]

    Trace complete.

    C:\>tracert 165.21.12.85

    Tracing route to FE-3-0.aljunied.singnet.com.sg [165.21.12.85]
    over a maximum of 30 hops:

    1 1 ms 1 ms 1 ms cm171.delta115.maxonline.com.sg [59.189.115.171]

    2 13 ms 12 ms 8 ms 10.43.128.1
    3 75 ms 10 ms 16 ms 172.20.43.129
    4 14 ms 13 ms 11 ms 172.26.43.1
    5 19 ms 31 ms 8 ms 172.20.8.129
    6 19 ms 10 ms 13 ms 203.117.161.253
    7 47 ms 12 ms 13 ms vlan913-an-cat6k-ts-2-rsm1.starhub.net.sg [203.1
    18.7.4]
    8 38 ms 9 ms 13 ms vlan917-cat6k-ts2-r1.starhub.net.sg [203.118.1.2
    34]
    9 19 ms 34 ms 13 ms ge3-0-gsrts2.starhub.net.sg [203.118.1.7]
    10 141 ms 26 ms 32 ms pos1-0-gsrtl2.starhub.net.sg [203.118.1.241]
    11 18 ms 10 ms 13 ms f5-0-0-shiatl1.starhub.net.sg [203.118.0.20]
    12 18 ms 13 ms 18 ms 165.21.49.109
    13 16 ms 17 ms 12 ms FE-3-0.aljunied.singnet.com.sg [165.21.12.85]

    Trace complete.
     
    lAwBoY, Sep 17, 2006
    #3
  4. lAwBoY

    swapnendu

    Joined:
    Sep 13, 2006
    Messages:
    57
    Okaaay...interesting...can u try a trace on 59.189.115.171 now...things shud be ok as we can see the latency for 165.21.12.85 is almost same...infact try three traces 165.21.12.85 , 165.21.74.59 and 59.189.115.171 na let us knw the findings.
     
    swapnendu, Sep 17, 2006
    #4
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