Amazon Transit Gateway is a fully managed service that enables customers to connect Virtual Private Clouds (VPCs) and on-premises networks through a central hub. It simplifies complex network topologies by acting as a scalable, high-performance transit layer for routing traffic between networks. Additionally, it supports key features such as bandwidth control, route propagation, and inter-region peering.
To learn how to create a new AWS Transit Gateway monitor, refer here.
Go to the Monitors Category View by clicking the Monitors tab. Click on Transit Gateway from the 'Child Monitors' under the Cloud Apps table. Displayed is the bulk configuration view distributed into three tabs:
Click on the monitor name to see all the Amazon Transit Gateway metrics listed under the following tabs:
| Parameter | Description |
|---|---|
| STATUS INFORMATION | |
| State | The state of the transit gateway. |
| DATA RECEIVED | |
| Rate of Data Received | The total amount of data received per second by the transit gateway between the poll interval (in MB/s). |
| Data Received | The total amount of data received by the transit gateway between the poll interval (in MB). |
| DATA SENT | |
| Rate of Data Sent | The total amount of data sent per second from the transit gateway between the poll interval (in MB/s). |
| Data Sent | The total amount of data sent from the transit gateway between the poll interval (in MB). |
| PACKETS RECEIVED | |
| Rate of Packets Received | The total number of packets received per second by the transit gateway between the poll interval (in packets/s). |
| Packets Received | The total number of packets received by the transit gateway between the poll interval. |
| PACKETS SENT | |
| Rate of Packets Sent | The total number of packets sent per second by the transit gateway between the poll interval (in packets/s). |
| Packets Sent | The total number of packets sent by the transit gateway between the poll interval. |
| BYTES DROPPED | |
| Bytes Dropped - Blackhole Route | The total number of data dropped because it matched a blackhole route between the poll interval. |
| Bytes Dropped - No Route | The total number of data dropped because it did not match any route between the poll interval. |
| PACKETS DROPPED | |
| Packets Dropped - Blackhole Route | The total number of packets dropped because they matched a blackhole route between the poll interval. |
| Packets Dropped - No Route | The total number of packets dropped because they did not match any route between the poll interval. |
| PACKETS DROPPED - TTL EXPIRED | |
| Packets Dropped - TTL Expired | The total number of packets dropped because the TTL (Time To Live) expired between the poll interval. |
| Parameter | Description |
|---|---|
| Transit Gateway Attachments | |
| Attachment ID | The unique identifier of the transit gateway attachment. |
| Attachment Name | The name of the transit gateway attachment, if configured using the Name tag in the AWS portal. |
| Attachment State | The current operational state of the transit gateway attachment. |
| Resource Type | The type of the resource attached to the transit gateway. Possible values: vpc | vpn | direct-connect-gateway | peering | connect | tgw-peering |
| Resource ID | The unique identifier of the resource attached to the transit gateway. |
| Route Table Association State | The state of the route table association. Possible values: Associating | Associated | Disassociating | Disassociated |
| Route Table ID | The unique identifier of the route table associated with the transit gateway attachment. |
| Creation Time | The timestamp shows when the transit gateway attachment was created. |
| Parameter | Description |
|---|---|
| CONFIGURATION | |
| Transit Gateway ID | The ID of the transit gateway, if configured using the Name tag in the AWS portal. |
| Description | The description of the transit gateway. |
| Creation Time | The creation time of the transit gateway. |
| Association Route Table ID | The ID of the default association route table. |
| Propagation Route Table ID | The ID of the default propagation route table. |
| Amazon ASN | A private Autonomous System Number (ASN) for the Amazon side of a BGP session. |
| ADVANCED SETTINGS | |
| Association Route Table | Indicates whether resource attachments are automatically associated with the default association route table. |
| Propagation Route Table | Indicates whether resource attachments automatically propagate routes to the default propagation route table. |
| Security Group Referencing Support | Indicates whether referencing security groups across VPCs attached to the transit gateway is allowed. |
| DNS Support | Indicates whether DNS support is enabled. |
| VPN ECMP Support | Indicates whether Equal Cost Multipath Protocol (ECMP) support is enabled. |
| Multicast Support | Indicates whether multicast is enabled on the transit gateway. |
| Auto Accept Shared Attachments | Indicates whether attachment requests from other AWS accounts are automatically accepted. |
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