AWS  Symptom : Entire VPC is slow?

  1. Is it just (access to) a single EC2  instance that is slow? Other EC2 instances are fast? Have you tried accessing it from within the VPC and compared to on-prem access?
  2. Is it just S3 downloads that are slow? Try S3 Transfer Acceleration

People tend to refer to VPC as a single entity – and talk about ‘the VPC is slow, the VPC is not secure etc..’ However , a VPC is a ‘composite’ entity, made up of several smaller networking constructs.

These include:

EC2 Instance Performance

Symptom: Only specific EC2 instances are slow.

Common EC2 Troubleshooting Steps

  1. tcptraceroute from the desktop/end user location to the instance in whatever Region the VPC (or EC2 instance is)  in at the time that this slowness is being experienced.
  2. Also a tcpdump of the traffic between the desktop and the EC2 instance..
  3. The AWS geographical region of the instances – and its proximity to the end-users is also somewhat a factor.

Anuj holds professional certifications in Google Cloud, AWS as well as certifications in Docker and App Performance Tools such as New Relic. He specializes in Cloud Security, Data Encryption and Container Technologies.

Initial Consultation

Anuj Varma – who has written posts on Anuj Varma, Hands-On Technology Architect, Clean Air Activist.

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