The MTU is calculated incorrectly when IPsec is disabled for EVPN connections.

Trouble Ticket Number

DTS2024070812012

Symptom

When IPsec is disabled in an SD-WAN scenario, an incorrect MTU value is delivered.

Condition

IPsec is disabled in an SD-WAN scenario.

Impact

The packet fragment size is improper.

Severity

Minor

Root Cause

The MTU is calculated incorrectly when IPsec is disabled in an SD-WAN scenario.

Solution

The MTU is calculated correctly when IPsec is disabled in an SD-WAN scenario.

Solution Impact

None

Problem Resolved in

V300R023C00SPC100, V300R023C10SPC100

Involved Models

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

Precaution

After activating the patch, re-establish EVPN connections for the patch to take effect.