Enterprise Router
Enterprise Router
- Service Overview
- Getting Started
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User Guide
- Permissions Management
- Enterprise Routers
- Attachments
- Route Tables
- Associations
- Propagations
- Routes
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Routing Control
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Route Policies
- Route Policy Overview
- Creating a Route Policy
- Associating a Route Policy with an Enterprise Router
- Changing the Route Policy Associated with an Enterprise Router
- Disassociating a Route Policy from an Enterprise Router
- Modifying a Route Policy
- Viewing a Route Policy
- Deleting a Route Policy
- Adding a Policy Node to a Route Policy
- Modifying a Policy Node in a Route Policy
- Exporting Policy Nodes in a Route Policy
- Viewing a Policy Node in a Route Policy
- Deleting a Policy Node from a Route Policy
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IP Prefix Lists
- IP Prefix List Overview
- Creating an IP Prefix List
- Modifying the Name of an IP Prefix List
- Viewing an IP Prefix List
- Deleting an IP Prefix List
- Adding a Prefix Rule to an IP Address Prefix List
- Modifying an IP Prefix Rule in an IP Prefix List
- Exporting Prefix Rules in an IP Prefix List
- Viewing a Prefix Rule in an IP Prefix List
- Deleting a Prefix Rule from an IP Prefix List
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AS_Path Lists
- AS_Path List Overview
- Creating an AS_Path List
- Modifying the Name of an AS_Path List
- Viewing an AS_Path List
- Deleting an AS_Path List
- Adding an AS_Path Filter to an AS_Path List
- Exporting AS_Path Filters in an AS_Path List
- Viewing an AS_Path Filter in an AS_Path List
- Deleting an AS_Path Filter from an AS_Path List
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Route Policies
- Sharing
- Flow Logs
- Monitoring and Audit
- Tags
- Quotas
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Best Practices
- Summary on Enterprise Router Best Practices
- Using Enterprise Router to Isolate VPCs in the Same Region
- Using a Third-Party Firewall to Protect VPCs Connected by Enterprise Routers
- Enabling an On-Premises Data Center to Access Service VPCs Using an Enterprise Router and Transit VPC
- Setting Up a Hybrid Cloud Network Using Enterprise Router and Direct Connect Global DC Gateway
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Setting Up a Hybrid Cloud Network Using Enterprise Router and a Pair of Direct Connect Connections (Global DC Gateway)
- Overview
- Network and Resource Planning
- Process of Setting Up a Hybrid Cloud Network Using Enterprise Router and a Pair of Direct Connect Connections (Global DC Gateway)
- Procedure for Setting Up a Hybrid Cloud Network Using Enterprise Router and a Pair of Direct Connect Connections (Global DC Gateway)
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Setting Up a Hybrid Cloud Network Using Enterprise Router and a Pair of Active/Standby Direct Connect Connections (Global DC Gateway)
- Overview
- Network and Resource Planning
- Process of Setting Up a Hybrid Cloud Network Using Enterprise Router and a Pair of Active/Standby Direct Connect Connections (Global DC Gateway)
- Procedure for Setting Up a Hybrid Cloud Network Using Enterprise Router and a Pair of Active/Standby Direct Connect Connections (Global DC Gateway)
- Setting Up a Hybrid Cloud Network Using Enterprise Router, VPN, and Direct Connect (Global DC Gateway)
- Setting Up a Hybrid Cloud Network Using Enterprise Router and Direct Connect (Virtual Gateway)
- Setting Up a Hybrid Cloud Network Using Enterprise Router, VPN, and Direct Connect (Virtual Gateway)
- Allowing VPCs to Share an EIP to Access the Internet Using Enterprise Router and NAT Gateway
- Using Enterprise Router to Migrate the Network Set Up Through VPC Peering
- Using Enterprise Router to Migrate the Network Set Up Through Direct Connect (Global DC Gateway)
- API Reference
- FAQs
On this page
Flow Log Overview
Updated on 2024-12-09 GMT+08:00
What Is a Flow Log?
Log Tank Service (LTS) can record flow logs for enterprise routers. A flow log records traffic of attachments on enterprise routers in real time. These logs allow you to monitor the network traffic of attachments and analyze network attacks, improving the O&M efficiency.
Flow logs can capture traffic of the following types of attachments:
- VPC
- Virtual gateway
- VPN gateway
- Global DC gateway
Creation Process
Before creating a flow log for an enterprise router, you need to create a log group and a log stream on the LTS console.
Figure 1 Process of creating a flow log
Notes and Constraints
- By default, you can create a maximum of 20 flow logs.
- For TCP and UDP fragments, flow logs can record only the first fragment. Other fragments cannot be recorded because of incomplete packet header.
- Flow logs can only record traffic generated for network communications and do not capture traffic generated by the network. For example, BGP traffic used by an enterprise router to learn routes of attachments is not recorded.
Parent topic: Flow Logs
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