[CentOS] OT: centos.org web site not responding

[Scott Silva]

<snip>

> When I run the command "mtr -c 10 -r centos.org" I continue to see the
> line which includes "???" and "100% loss" within the Layered Tech DC
> in Dallas. I don't know what if anything that indicates. At the time
> of the below test, I can load centos.org into my browser, without
> problems.
> 
> pod22c_ae.layeredtech.com                     0.0% 120.8 136.4 118.6 201.5  26.3
> ???                                          100.0   0.0   0.0   0.0   0.0   0.0
> 162.194.232.72.static.reverse.ltdomains.com  10.0% 148.6 133.1 119.7 161.0  18.0
> [root at dell2400 ~]#

Not all routers respond to the icmp packets in these tests. The fact that the
trace gets beyond that router is usually enough to imply that the packets get
through. I also see the 100% loss at that router, but have no problem with the
centos site.

Sometimes routers are configured to ignore tests like this all the time, and
sometimes they will drop any unnecessary test packets if they are running near
their maximum load. The tests are not a go / no go test.

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