CDN Overload Responses (Public)

	A	B	C	D	E	F	G	H	I	J	K	L	M	N	O	P	Q
1	Timestamp	What CDN?	What have you identified the traffic to be?	What is the access network?	Where is the rate limiting done?	How is the rate limiting done?	What is doing the rate limiting?	What is the rate-limit set to?	Upstream of the rate-limiter, what are you seeing for inbound traffic levels?	One concurrent connection or many?	How does other traffic behave when exceeding the rate limit (outside of the problem situations)?	Where is NAT performed?	What is doing NAT (make\model)?	Shared NAT or isolated to that customer?	Have you done a packet capture before and after the rate limiter? The NAT device?	Would you be willing to send a filtered packet capture (only the frames that relate to this CDN) to the CDN if they want it?	Are there any bursting methods in use (customer can download at a rate above their normal plan for some time, dropping down to their plan speed when done)?
2	9/21/2016 9:32:55	Akamai, Microsoft	Windows Updates	Mikrotik Wireless, Ubiquiti Wireless	CPE	PFIFO	MikroTik Simple Queues	1664k, 3200k or 5248k	50-80% above client limit	Many	Normal	CPE, Border	CCR1036, CCR1072	Shared by multiple customers	No	Yes
3	9/21/2016 9:46:21	Akamai, Level 3, Microsoft, LimeLight	Microsoft Windows 10 update and Apple ISO	Ubiquiti Wireless	At the tower	SFQ	Mikrotik Router	768k-10mbs	256k-1mbs	One	Internet seems to be down or really slow	CPE	Ubnt	Shared by multiple customers	No	Yes
4	9/21/2016 9:48:30	Akamai, Microsoft	Windows 10 updates	Active Ethernet	In client CPE. Mikrotik RB1100ahx2	Policing	Mikrotik RB110ahx2	11Mb out of 20Mb	20Mb	Many	Totally stalled	CPE	Multiple downstream routers	Customers have own NAT routers	Yes	Yes	No
5	9/21/2016 10:41:57	Akamai	Netflix	DSL, Ubiquiti Wireless, 802.16e WiMax, TD-LTE, & Carrier Ethernet Fiber (10mbps and up),	WiMax: Vendor Access Service Network Gateway, LTE: Vendor Evolved Packet Core, ADSL: PPPoE LNS	Un-known or un-documented vendor implementation (LTE & WiMax)	Vendor Access Service Network Gateway or LTE Evolved Packet Core	Varies. Nothing higher than 10mbit/sec	800mbit/sec	One	Drops owing to inbound saturation	CPE	Many. Top three: LTE: Huawei B2268H, LTE: CelaLink CL-10, WiMax: Alvarion/Telrad 3000/4000	Single customer	No	n/a, no saved captures available
6	9/21/2016 11:28:52	Microsoft, LimeLight	Windows updates	Cambium ePMP Wireless, Ubiquiti Wireless	NOC/network edge	SFQ	MikroTik (PPPoE)	Various - it seems to show up on sub-2Mbps connection most of the time	haven't checked	Many	as expected	CPE	Ubiquiti airmax, cambium ePMP	Single customer	No	Yes
7	9/21/2016 15:07:05	Akamai, Microsoft	Micorsoft Windows Update	DSL, Active Ethernet, Ubiquiti Wireless	Access Router	SFQ	Mikrotik	Customer speed tier +15% + a 25% burst	Customer total speed + 20-40%	Many	As expected - Latency raises but traffic normalizes to customers package	CPE	Comtrend Modem, Comtrend Router, Ubiquiti Radio	Single customer	No	Yes
8	9/21/2016 16:24:50	Microsoft	Windows updates	Mikrotik Wireless	access list, which doesnt work but queues on edge routers do	Hardware\protocol limitations	access list in mikrotik	2mb	max of the connection	Many	I'm not sure what you mean the traffic kind of does whatever it wants even thou the radio is limited	Router	Mikrotik CCR1009 router	Shared by multiple customers	Yes	Yes
9	9/21/2016 18:46:48	Akamai, Microsoft	Microsoft Updates	DSL, Active Ethernet	For ADSL/VDSL it is usually done within the last-mile by the ILEC.	Policing, Hardware\protocol limitations	Depends on the connectivity. For DSL customers the DSLAM and physical link rate are responsible, though in some cases we believe the ILEC polices to the guaranteed speed rather than limiting the physical sync.	I have observed these complaints on everything from 6mbps to 25mbps, and possibly on faster connections but the updates may clear quickly enough that we haven't seen many reports.	I have not measured this.	Many	I have not measured this.	Router, Half of customers provide their own NAT box. Other half (private WAN customers) are NAT'd by a central SRX cluster.	SRX Cluster	Shared by multiple customers, Single customer	No	Yes
10	9/21/2016 19:41:13	Microsoft, LimeLight	Windows Update	Cambium PMP Wireless	PMP450 AP	Policing	PMP450 AP	Burst up to 15 Mbps, and sustained between 2-10 Mbps depending on plan.	Up to the burst bandwidth limit, but never higher.	Many	Other applications and services fall apart when most of their packets get discarded at the PMP450.	Router	NAT to the public IP is performed at our upstream edge (Mikrotik), but there are usually two more layers at the PMP450 CPE, and at the customer's router.	Shared by multiple customers, Shared by all customers, Single customer	No	No
11	9/21/2016 19:54:24	Microsoft	Microsoft Updates	Mikrotik Wireless	We are trying not to block or limit	N/A	N/A	N/A	30 megs	Many	N/A	Customer	Customer	Single customer	Yes	Yes	No
12	9/21/2016 22:31:20	Akamai, Level 3, Microsoft, LimeLight, High Winds	Unknown for sure, but I suspect video and large downloads	Active Ethernet, Ubiquiti Wireless	varies - usually the ubnt cpe or the router the AP is attached to	PFIFO, SFQ, PCQ	Ubnt unit traffic shaping, egress only and/or mikrotik simple queues	varies - anywhere from 1.2mb/s to 6mb/s	Exceeds shaped limit 10-100%	One	Customers complain about super slow service	No NAT - Public IP's	N/A	No NAT involved	No	Yes
13	9/22/2016 0:15:46	Akamai	Windows Updates	Active Ethernet	QoS FAvour Voip, Policing instead of shape.	Policing	Cisco 2921	20Mbps	50-75MBps	Many	Kills connections / Overloaded Service	Router	Cisco 2921	Single customer	No	Maybe, if i see it again and have time to react
14	9/22/2016 11:38:16	Akamai, Microsoft	Windows update and other large file download	Active Ethernet	Through a MPLS TE Tunnel	RED	Mikrotik Through a TE Tunnel	100mbps	200-250mbps	Many	All other traffic becomes completely unresponsive	Customer's Router	Cisco ASR1001	Single customer	No	When I see it again I can
15	9/22/2016 20:28:30	Level 3, Microsoft	Windows 10 auto updates mostly	Ubiquiti Wireless	Ubiquiti CPEs and Mikrotik router	Policing, PFIFO	Ubiquiti CPEs and Mikrotik router	varies from 1mbps to 12mbps	?	Many	fine	CPE	ubiquity nanobridges	Single customer	No	No
16	10/1/2016 3:14:32	Akamai	Windows 10 updates	DSL	Entry router	Policing	No effect	10KB/s	45Mb/s+	Many	Internet becomes completely unusable	Router	ASUS RT-AC3200	Shared by multiple customers	Yes	No
17	10/2/2016 15:11:00	Microsoft	Windows 10 updates	Ubiquiti Wireless	cpe or router	Policing	cpe traffic shapping	4, 6 or 8 Mbps down	Maxes out 4 Mbps constantly - Windows 10 updates	One	No traffic left for any other activities	Router	MikroTik RB2011UiAS	Shared by multiple customers	No	Possibly
18	10/3/2016 11:11:56	Microsoft	Windows10 Updates	Cambium PMP Wireless, Cambium ePMP Wireless, Ubiquiti Wireless	Core Router	PCQ	Mikrotik Router	5mbps	5mbps	Many	Drops	CPE, Router	Mikrotik X86	Shared by multiple customers, Single customer	No	No	Yes
19	10/5/2016 10:01:15	Microsoft	Windows Update	Cambium PMP Wireless	CPE	PMP100 900mhz CPE	CPE	1.5mbit	5mbit	One	Throttles	Customer Router	Linksys router	Single customer	No	Yes	No
20	10/19/2016 3:06:42	Akamai	traffic	Mikrotik Wireless, Cambium ePMP Wireless	PPPOE server	PFIFO, PCQ	queue	maximum rate	traffic	One	inside the main queue	CPE, Router	ubiquity nsm5	Single customer	Yes	Yes	Yes
21	10/20/2016 13:07:42	Akamai	Windows update	Active Ethernet	Edge	PCQ	simple queues	5M	20M	Many	stops	Router	Mikrotik rbg450	Shared by multiple customers	No	Yes	Yes
22	10/7/2017 5:53:31	Akamai	10000	DSL	100000	Policing	10000	10000	10000	One	10000	CPE	nat	Shared by multiple customers	Yes	Yes	Yes
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