level3_bx4-montrealak.net consistently dropping 50% of the packets

James Michael Keller jmkeller at houseofzen.org
Fri Feb 21 15:09:48 UTC 2014


On 02/20/2014 10:08 AM, Nick Cameo wrote:
> Hello Everyone,
>
> According to mtr command we are consistently seeing
> level3_bx4-montrealak.net
> dropping 30-50% of packets. Our ISP is Bell Canada. Any ideas on how to get
> this resolved are greatly appreciated.
>
>
> HOST: victoria                    Loss%   Snt   Last   Avg  Best  Wrst StDev
>    1.|-- 192.168.2.1                0.0%    10    0.5   0.8   0.4   1.6   0.5
>    2.|-- lns2-montrealak_lo0_LNS.n  0.0%    10    6.7   7.6   6.7   8.8   0.7
>    3.|-- agg1-montrealak_GE0-2-2_1  0.0%    10    6.4   6.3   5.4   7.6   0.6
>    4.|-- bx4-montrealak_so-0-0-0.n  0.0%    10    6.0   5.8   4.9   7.0   0.7
>    5.|-- level3_bx4-montrealak.net 50.0%    10    6.5   6.7   5.7   7.9   0.8
>    6.|-- ae-11-11.car1.Montreal2.L  0.0%    10   92.2  91.7  91.0  92.8   0.7
>    7.|-- ae-5-5.ebr2.NewYork1.Leve  0.0%    10   90.9  92.0  90.9  92.7   0.6
>
>
> Kind Regards,
>
> Nick.
>

I you do not see as high or higher packet loss reported at the hops 
after, all you are seeing is control plane filtering / rate limiting on 
that router.

-- 

-James




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