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- What's New
- Function Overview
- Service Overview
- Billing
- Getting Started
-
User Guide
- Permissions Management
- Enterprise Routers
- Attachments
- Route Tables
- Associations
- Propagations
- Routes
-
Routing Control
-
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 Auditing
- Tags
- Quotas
-
Best Practices
- Summary on Enterprise Router Best Practices
- Connecting VPCs Across Regions Using Enterprise Router and Central Network
- 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 and a Pair of Direct Connect Connections (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)
- Using Enterprise Router and Central Network to Migrate the Network Set Up Through a Cloud Connection
- API Reference
- FAQs
-
More Documents
-
User Guide (ME-Abu Dhabi Region)
- Service Overview
- Getting Started
- Enterprise Routers
- Attachments
- Route Tables
- Associations
- Propagations
- Routes
- Sharing
- Flow Logs
- Monitoring
- Interconnecting with CTS
- Permissions Management
- Tags
- Quotas
- FAQ
- Change History
-
User Guide (Ankara Region)
- Service Overview
- Getting Started
- Permissions Management
- Enterprise Routers
- Attachments
- Route Tables
- Associations
- Propagations
- Routes
- Sharing
- Flow Logs
- Monitoring
- Quotas
- FAQ
- Change History
- API Reference (Ankara Region)
-
User Guide (ME-Abu Dhabi Region)
- General Reference
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Notes and Constraints
Quotas
Table 1 lists the quotas about enterprise router resources. Some default quotas can be increased.
You can log in to the console to view default quotas. For details, see Viewing Quotas.
Item |
Adjustable |
---|---|
Maximum number of enterprise routers that can concurrently connect to a VPC |
No |
Maximum number of VPCs that can be attached to an enterprise router |
|
Maximum number of peering connections that can be attached to an enterprise router |
|
Maximum number of virtual gateways that can be attached to an enterprise router |
|
Maximum number of VPN gateways that can be attached to an enterprise router |
|
Maximum number of route tables allowed on each enterprise router |
No |
Maximum number of routes allowed on each enterprise router |
No |
Maximum number of static routes allowed in each route table |
|
Maximum number of flow logs that can be created by each account |
No |
Specifications
Table 2 lists the specifications of the enterprise router.
Constraints
There are some constraints on using enterprise routers, as described in Table 3. You can follow our suggestions to handle these issues.
Constraint |
Suggestion |
---|---|
If a service VPC is being used by ELB, VPC Endpoint, NAT Gateway (private NAT gateway), Distributed Cache Service (DCS), or hybrid DNS, this VPC cannot be attached to an enterprise router.
NOTICE:
If you attach a service VPC to an enterprise router when Elastic Load Balance (ELB), VPC Endpoint, or DCS is being used together with Enterprise Router, persistent connections may be intermittently interrupted during service reliability assurance, such as a DR switchover, an upgrade, or elastic scaling. Ensure that the clients are capable of automatic reconnection in case of intermittent disconnection. |
Submit a service ticket to confirm the service compatibility and preferentially use a transit VPC for networking. For details, see scheme 2 in Selecting a Networking Scheme. |
Traffic cannot be forwarded from a VPC to the enterprise router that the VPC is attached to if you set the destination of a route whose next hop is the enterprise router to 0.0.0.0/0 in the VPC route table and if:
|
|
If a VPC attached to an enterprise router has a NAT gateway associated and Scenario of the SNAT or DNAT rules is set to Direct Connect/Cloud Connect, the network from the on-premises data center to the VPC is disconnected. |
Use a transit VPC for networking. For details, see scheme 2 in Selecting a Networking Scheme. |
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