level3_bx4-montrealak.net consistently dropping 50% of the packets
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.
On 2/20/2014 6:08 PM, Nick Cameo wrote:
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.
It's dropping packets _to_ and/or _from_ it. Seem it's got the priorities well adjusted and does not drop packets being _forwarded_ (see hops 6 and 7). first $search_engine hit for me was https://library.linode.com/linux-tools/mtr#sph_icmp-rate-limiting Frank
There are reports of problems in Montreal with several other providers over the last several days. These seem to coincide with the Olympics live broadcasts, particularly during the hockey broadcasts. -- Stephen On 2014-02-20 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.
A careful reading of the following fixes this issue every time it occurs. I guarantee it. https://www.nanog.org/meetings/nanog47/presentations/Sunday/RAS_Traceroute_N... On Thu, Feb 20, 2014 at 10:08 AM, Nick Cameo <symack@gmail.com> 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.
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
participants (5)
-
Frank Habicht -
James Michael Keller -
Jay Farrell -
Nick Cameo -
Stephen Fulton