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Cisco Bug: CSCvu33358 - MTU out of sync between SDWAN config and IOS config

Last Modified

Sep 18, 2020

Products (1)

  • Cisco IOS

Known Affected Releases

Amsterdam-17.2.1r

Description (partial)

Symptom:
cEdge may give this error when configuring a subinterface even though IP MTU is set correctly on the parent interface

Aborted: 'vpn 0 interface TenGigabitEthernet0/0/1.100 mtu': Tagged interface MTU needs to be at least 4 bytes less than parent interface (TenGigabitEthernet0/0/1) mtu (1504)

Conditions:
cEdges router (vEdge not impacted)
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