Troubleshooting AWS

The AWS public cloud provides several services and troubleshooting each of these services requires its own set of expertise. We will look at the the most commonly used services that are involved in hybrid cloud configuration, for instance, the EC2 service.  

AWS Direct Connect

The AWS Direct Connect service is widely used for configuring hybrid cloud environments. Let's discuss some of the most common issues with AWS Direct Connect:

• If you are unable to ping the Amazon peer IP address, check if the IP address is correctly configured and is in the proper VLAN. Also in the ARP table, check that the router has a MAC address of the AWS endpoint.
• If there are any intermediate devices in between, check that they have VLAN trunking enabled for the 802.1Q VLAN tag.
• Its always a good idea to flush the ARP table cache before testing connectivity issues.
• If you are able to ping the AWS peer IP address, but the virtual interface seems down, check if the BGP ASN and AWS ASN are correctly...