In an SD-WAN scenario with NAT traversal, the active and standby links are deployed on dual gateways, respectively. If the active link deployed on the active gateway is faulty and the standby link deployed on the standby gateway is deleted, the standby gateway does not re-enumerate links based on TNPs.

Trouble Ticket Number

DTS2024112739182

Symptom

In an SD-WAN scenario with NAT traversal, the active and standby links are deployed on dual gateways, respectively. If the active link deployed on the active gateway is faulty and the standby link deployed on the standby gateway is deleted, the standby gateway does not re-enumerate links based on TNPs.

Condition

In an SD-WAN scenario with NAT traversal, the active and standby links are deployed on dual gateways, respectively. In this situation, the active link deployed on the active gateway fails and the standby link on the standby gateway flaps.

Impact

The standby gateway cannot re-enumerate links based on TNPs.

Severity

Minor

Root Cause

The link enumeration process is improper.

Solution

STUN timeout protection is added for extended connections.

Solution Impact

None

Problem Resolved in

V300R023C00SPC100

Involved Models

AR600, AR6100, AR6200, AR6300, RU-5G

Precaution

None