Packetloss - Resolved - Large DDOS

Stephen

Stephen

US Operations
Staff member
We are seeing packetloss at various monitoring stations and checking into it, it is varying amounts some high and some low amounts, seems like a routing blip but checking.
 
I am going to head to the datacenter and see if I can work any more angles from there now.
 
About 50% of normal traffic levels are coming through at the moment.
On the phone with two NOCs.
 
There is a multigigabit DDOS attack on multiple routes upstream that are causing this, being routed around now, and already most of the monitoring stations working with only a couple showing 20% or less packetloss.
 
There were issues a couple steps upstream at some major core routers facing multi gigabit DDOS attacks and causing them to lose many packets. After routing fully around these networks systems are working properly for all routes to our network.

We will be monitoring it, as we were tonight, and upstreams have their holiday staff coming in to also watch it now, as some where working from remote.
 
We just got an update, and it was traffic destination here to the Win39 shared IP address making this issue, over 7 gigabit of traffic, and it was impacting the upstream routes, as well as our own! Makes a lot of sense now except that traffic here wasn't showing even to be maxed out, actually only 50% of normal so it was obviously bottlenecked before hitting us somewhere.
 
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