Comsave Network




TypeStatusComment
Core Aalsmeer NLDCHealthy
There are no known issues.
Core Almere NLDCHealthy
There are no known issues.
Core Amsterdam VancisHealthy
There are no known issues.
Core Amsterdam Switch Datacenter
Healthy
There are no known issues.
Core Amsterdam euNetworks Datacenter
Healthy
There are no known issues.
Core Amsterdam Colt Duivendrecht
Healthy
There are no known issues.
Core Amsterdam NIKHEF

Healthy

There are no known issues.
Core Amsterdam GYRO Center
Healthy
There are no known issues.
Core Amsterdam TDCG
Healthy
There are no known issues.
Core Amsterdam Equinix AM 1
Healthy
There are no known issues.
Core Amsterdam Equinix AM 2
Healthy
There are no known issues.
Core Amsterdam Equinix AM 3
Healthy
There are no known issues.
Core Amsterdam Equinix AM 4

Healthy

There are no known issues.
Core Amsterdam Equinix AM 5
Healthy
There are no known issues.
Core Amsterdam Equinix AM 6
Healthy
There are no known issues.
Core Amsterdam Equinix AM 7
Healthy
There are no known issues.
Core Amsterdam Equinix AM 8
Healthy
There are no known issues.
Core Amsterdam TelecityGroup 
Healthy
There are no known issues.
Core Amsterdam NIKHEF
Healthy
There are no known issues.
Core Amsterdam GlobalSwitch
Healthy
There are no known issues.
Core Amsterdam DigitalRealty
Healthy
There are no known issues.
Core Amsterdam Interxion Science Park
Healthy
There are no known issues.
Core Alblasserdam Dataplace
Healthy
There are no known issues.
Core Arnhem DataplaceHealthy
There are no known issues.
Core Haarlem EvoswitchHealthy
There are no known issues.
Core Rotterdam R_iXHealthy
There are no known issues.
Core Delft TDCGHealthy
There are no known issues.
Core Ede BIT 1Healthy
There are no known issues.
Core Ede BIT 2Healthy
There are no known issues.
Core Eindhoven NL|DCHealthy
There are no known issues.
Core Oude Meer NL|DC
Healthy
There are no known issues.
Core Rotterdam SmartDCHealthy
There are no known issues.
Core Rotterdam BytesnetHealthy
There are no known issues.
Core Rotterdam NL|DC
Healthy
There are no known issues.
Core Rotterdam ColtHealthy
There are no known issues.
Core Steenbergen NedZoneHealthy
There are no known issues.
Core Brussel - Zaventem InterxionHealthy
There are no known issues.
Core Brussel - Diegem LCLHealthy
There are no known issues.
Core Londen Telehouse NorthHealthy
There are no known issues.
Core Paris Interxion PAR 2Healthy
There are no known issues.
Core Frankfurt Interxion Campus FRA 1 - FRA 11Healthy
There are no known issues.
Core Zurich Equinix ZH4Healthy
There are no known issues.
Core Milan Caldera MIL 21Healthy
There are no known issues.

Transit

TypeStatusComment
Transit Zayo                                                           Healthy
There are no known issues.
Transit AMSIXHealthy
There are no known issues.
Transit FusixHealthy
There are no known issues.
Transit NTTHealthy
There are no known issues.

Third Party Network

 

CarrierStatusComment
KPN WEAS Nikhef                                         Healthy
There are no known issues.

KPN WBA NikhefHealthy
There are no known issues.


KPN WEAS AM4Healthy
There are no known issues.
Eurofiber NIKHEF                            
Healthy
There are no known issues. 
Ziggo Nikhef
Healthy
There are no known issues. 

Ziggo AM4Healthy
There are no known issues.
ColtHealthy
There are no known issues.
ServiceMatrixHealthy
There are no known issues.
Tele2 NIKHEFHealthy
There are no known issues. 

ZayoHealthy
There are no known issues.
VerizonHealthy
There are no known issues.
OpenfiberHealthy
There are no known issues.
OonoHealthy
There are no known issues.
NDIXHealthy
There are no known issues.
NLDCHealthy
There are no known issues.
CbizzHealthy
There are no known issues.
CrossnetworksHealthy
There are no known issues.
RodinHealthy
There are no known issues.
UPCHealthy
There are no known issues.
Schiphol TelematicsHealthy
There are no known issues.
AFiberHealthy
There are no known issues.
XFiberHealthy
There are no known issues.
Eurofiber BEHealthy
There are no known issues.
Proximus
Healthy
There are no known issues.
EDPNetHealthy
There are no known issues.
CitymeshHealthy
There are no known issues.
TelenetHealthy
There are no known issues.
TeliaHealthy
There are no known issues.
SparkleHealthy
There are no known issues.
CegecomHealthy
There are no known issues.
TelefónicaHealthy
There are no known issues.
Vodafone ESHealthy
There are no known issues.
Deutsche TelekomHealthy
There are no known issues.
TelenorHealthy
There are no known issues.
VersatelHealthy
There are no known issues.
SFRHealthy
There are no known issues.
CovageHealthy
There are no known issues.
Orange FranceHealthy
There are no known issues.
Iliad TelecomHealthy
There are no known issues.
TalkTalk BusinessHealthy
There are no known issues.
BTHealthy
There are no known issues.
Virgin MediaHealthy
There are no known issues.
Vodafone UKHealthy
There are no known issues.
Virtual1Healthy
There are no known issues.
UPC SwitzerlandHealthy
There are no known issues.
Sunrise Healthy
There are no known issues.
ZPravaHealthy
There are no known issues.

RFO Ziggo Lite

Datum RFO: 28-12-2020

Datum incident: 24-12-2020

Status RFO: Preliminary


Overview:


At 11:03 a spike in network traffic was seen on one Ziggo - Comsave NNI.

The edge device which facilitates this NNI saw traffic increase restricted to this port. The normal traffic flowing on this port was impacted by this rise in traffic which caused a major network outage on all Ziggo services flowng through the NNI.

After analysis this traffic was found to be coming only from Ziggo services and contact was made with the Ziggo NOC for assistance.

The Ziggo NOC gave a preliminary response reporting a possible loop in the network and further investigation was needed.

The Ziggo NOC advised that they saw a single MAC address on 2 customer VLAN's. No other issues were detected.

The Ziggo NOC advised that they did not see the same port telemetry we were seeing. The data sent over the NNI was not visible on the Ziggo side according to the Ziggo NOC.

The VLAN's were rejected on the edge device. After the VLAN configuratie was implemented traffic flow returned to expected levels.

Preliminary configuration was added to disallow the traffic seen during the incident.

So far the root cause for the traffic increase has not been found. The setup and conditions are being rebuilt in a lab environment to analyse the situation in depth.


1) The exact reason for the outage (why did it happen?)

This will be shared at a later date. Investigation is still ongoing.


2) On what device was the issue

The Comsave edge device connected to the Ziggo edge device.


3) The location (geographical location or network location i.e. core-/access-network or last mile) or exchange names of the trouble point?

Amsterdam


4) Who solved it

Ziggo and Comsave NOC


5) What was done to solve it

Removal of VLAN interfaces


6) Is this fix permanent?

Please refer to point 1.


7) Are there any measures taken to prevent this from occurring?

Please refer to point 1.

Monitoring has been set up to alert the NOC when the first indicators of this behavior occurs.

Configuration changes have been made to further disallow traffic seen during the incident.


This page contains information about the Comsave network
for more information you can contact support@comsave.com
.