Keep in mind:
1.) As Ben mentioned, 8.8.8.8 appears a great number of places on the
Internet; your path is unlikely to be the same as Matthew's
2.) Do not assume that Vodafone's network has anything to do with
TelstraClear's network.
Otherwise an interesting thread. The tin-foil-hat wearer in me says to
always be suspicious of sudden increases in latency over known paths. Port
mirroring doesn't add latency, but if you have to re-route traffic to a box
with a spare port to keep the TLAs happy...
-JB
On Tue, Sep 17, 2013 at 8:25 AM, Matthew Poole
Hi all
Breaking with recent tradition and discussing something related to the operation of the NZ tubes...
My employer has a TVH business fibre connection, and since around midnight Saturday/Sunday the latency to 8.8.8.8 (one of my Smokeping test subjects) has been consistently > 160ms. mtr tells me: |-----------------------------**------------------------------** ------------------------------**-| | WinMTR statistics | | Host - % | Sent | Recv | Best | Avrg | Wrst | Last | |-----------------------------**-------------------|------|---** ---|------|------|------|-----**-| | firewall - 0 | 124 | 124 | 0 | 0 | 1 | 0 | | 203.167.222.5 - 1 | 120 | 119 | 0 | 2 | 51 | 51 | | ge-0-2-0-1.xcore1.acld.**telstraclear.nethttp://ge-0-2-0-1.xcore1.acld.telstraclear.net- 0 | 124 | 124 | 0 | 3 | 62 | 1 | |ge-0-2-0-914.xcore2.acld.**telstraclear.nethttp://ge-0-2-0-914.xcore2.acld.telstraclear.net- 0 | 124 | 124 | 0 | 3 | 48 | 2 | | gi1-2.akl-grafton-bdr2.ihug.**nethttp://gi1-2.akl-grafton-bdr2.ihug.net- 0 | 124 | 124 | 1 | 2 | 29 | 11 | | No response from host - 100 | 24 | 0 | 0 | 0 | 0 | 0 | | tu20232901.akl-grafton-core1.**ihug.nethttp://tu20232901.akl-grafton-core1.ihug.net- 0 | 124 | 124 | 129 | 132 | 192 | 164 | | 209.85.249.5 - 0 | 124 | 124 | 176 | 178 | 242 | 200 | | 209.85.250.63 - 0 | 124 | 124 | 176 | 187 | 252 | 195 | | 72.14.232.63 - 0 | 124 | 124 | 181 | 183 | 246 | 199 | | 72.14.233.200 - 0 | 124 | 124 | 189 | 191 | 251 | 213 | | 216.239.48.165 - 0 | 124 | 124 | 179 | 182 | 244 | 197 | | No response from host - 100 | 24 | 0 | 0 | 0 | 0 | 0 | | google-public-dns-a.google.com - 0 | 124 | 124 | 179 | 183 | 246 | 200 | |_____________________________**___________________|______|___** ___|______|______|______|_____**_|
The sudden latency jump at akl-grafton-core1.ihug.net kinda leaps out. Is anyone else seeing this? And is this something that the TVH admins are aware of? Please don't make me deal with helpdesk!
Cheers
-- Matthew Poole "The difference between theory and practice is that practice is easier in theory than theory is in practice" ______________________________**_________________ NZNOG mailing list NZNOG(a)list.waikato.ac.nz http://list.waikato.ac.nz/**mailman/listinfo/nznoghttp://list.waikato.ac.nz/mailman/listinfo/nznog