Cloud Enterprise Network：Diagnose a transfer router

Category

Item

Description

Configuration diagnostics

Cross-region Throttling Check

Checks whether a bandwidth cap is specified for the inter-region connections on the transit router.

Route Learning Check

Checks whether route learning is enabled between the network connections on the transit router and the route tables of the transit router.

If route learning does not need to be enabled between a network connection and the route tables of the transit router, make sure that a static route that points to the network instance exists in the route tables of the transit router. Otherwise, the transit router cannot forward network traffic to the network instance.

For more information about route learning, see Route learning.

Associated Forwarding Check

Checks whether associated forwarding is enabled between the network connections on the transit router and the route tables of the transit router.

For more information about associated forwarding, see Associated forwarding.

Check Network ACL Configuration

Checks whether the ACL allows requests from the CIDR block of the VPC vSwitch that is used to connect to the transit router.

For more information about ACLs, see Overview of network ACLs.

Automatic Route Advertising Check

Checks whether automatic route advertisement is enabled between virtual border router (VBR) connections and inter-region connections.

If you want VBRs to automatically learn routes from the transit router and the local transit router to learn routers from the peer transit router, enable automatic route advertisement between VBR connections and inter-region connections.

Quota diagnostics

Route Usage Check

Checks whether the existing number of routes in the route tables of the transit router has reached 80% of the route quota.

The route tables of a transit router support at most 2,000 routes.

Cross-region Throttling Packet Loss

Checks whether each QoS queue of the inter-region connections has consumed 80% of the maximum bandwidth.

Cross-region Throttling Packet Loss

Checks whether the inter-region connections have consumed 80% of the maximum bandwidth.

Check for inter-region connection packet loss

Checks whether packets are dropped due to throttling on inter-region connections during the last 15 minutes.

Check whether the QoS queue of inter-region connections has packet loss

Checks whether packets are dropped due to throttling in QoS queues of inter-region connections during the last 15 minutes.

Payment diagnostics

Overdue Payment Alert

Checks whether the bandwidth plan associated with the CEN instance has an overdue payment.

Alerts for Overdue Payments

Checks whether the bandwidth plan associated with the CEN instance is about to expire within seven days.

Route diagnostics

Route Conflict Check for Network Instance

Checks whether the routes of network instances connected to the transit router overlap with each other.

VPC Routes

Checks whether all the destination CIDR blocks of routes in the route table of the transit router fall into the destination CIDR blocks of VPC routes that point to the transit router. The route table of the transit router refers to the transit router route table that is associated with the VPC connection.