Packet Loss Occurs

Symptom

Packet loss occurs when a server in an on-premises data center pings an ECS in a Huawei Cloud VPC.
Packet loss occurs when an ECS in a Huawei Cloud VPC pings a server in an on-premises data center.

Procedure

Check the customer-side networking and bandwidth.
- Check whether the customer network has multiple egresses working in load balancing mode and whether traffic destined for Huawei Cloud is distributed to a non-VPN egress. Ensure that the traffic destined for Huawei Cloud is transmitted through the same egress.
- Ping the IP address of the VPN gateway on Huawei Cloud and other public IP addresses (for example, 114.114.114.114) from the customer gateway to check the delay and packet loss rate on the public network.
  If the quality of the public network is poor, you are advised to seek help from the corresponding carrier.
- Check whether traffic on the customer gateway device exceeds the bandwidth limit.
Check the Huawei Cloud-side networking and bandwidth.
- Check whether traffic exceeds the bandwidth of the Huawei Cloud VPN gateway.
  1. Check the bandwidth of active and standby EIPs of the VPN gateway as follows: Choose Virtual Private Network > Enterprise – VPN Gateways, click the VPN gateway name, and check the value of Bandwidth (Mbit/s) in the EIP area.
  2. Check the actual bandwidth usage of the VPN gateway as follows: Choose Virtual Private Network > Enterprise – VPN Gateways, and click in the Public IP Address column of the VPN gateway.
  If traffic exceeds the bandwidth of the VPN gateway, increase the bandwidth.
If the fault persists after you verify the preceding configurations, contact Huawei engineers by submitting a service ticket.