BugZero | Cisco BugID CSCvm13858 - ASR920: Complete Traffic Loss for Existing TEFP Se...

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BugZero | Cisco BugID CSCvm13858 - ASR920: Complete Traffic Loss for Existing TEFP Se...

ODD
Cisco
CSCvm13858

Cisco - Defect ID: CSCvm13858

ASR920: Complete Traffic Loss for Existing TEFP Services on New VLAN Add and Remove

ODD
Cisco
CSCvm13858

Cisco - Defect ID: CSCvm13858

ASR920: Complete Traffic Loss for Existing TEFP Services on New VLAN Add and Remove

Last updated on February 19th, 2026

BugZero Risk Score
7.8 High

Overall: 7.8

Severity: 8.2

Lifecycle: 9.1

Popularity: 4.6

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Bug Details

Description

Symptom

On an ASR920 or HotSprings1 router, the traffic for BDIs associated with Trunk Ethernet Flow Points (TEFPs) might fail.

Conditions

Trunk EFP (TEFP) configured under an interface and Dot1Q VLANs are configured for the TEFP. A new VLAN is added using the command "encapsulation dot1q add ". The new VLAN is deleted using the command "encapsulation dot1q remove ". Traffic for existing VLANs that had been associated with the TEFP fails are removal of the new VLAN.

Workaround

There is no work-around known as yet.

Further Problem Description

Change history

2024-04-02 Added: 16.10.1

Relevant Products

Click on a version to see all relevant bugs

Affected versions:16.10.1

Fixed versions: 16.10.1, 16.10.1a, 16.10.1b, 16.10.1c, 16.10.1d, 16.10.1e, 16.10.1f, 16.10.1g, 16.10.1i, 16.10.1s, 16.10.2, 16.10.3, 16.11.1, 16.11.1a, 16.11.1b, 16.11.1c, 16.11.1s, 16.11.2, 16.12.1, 16.12.1a, 16.12.1c, 16.12.1s, 16.12.1t, 16.12.1w, 16.12.1x, 16.12.1y, 16.12.1z, 16.12.2, 16.12.2a, 16.12.2s, 16.12.2t, 16.12.3, 16.12.3a, 16.12.3s, 16.12.4, 16.12.4a, 16.12.5, 16.12.5a, 16.12.5b, 16.12.6, 16.9.2, 16.9.2a, 16.9.2s, 16.9.3, 16.9.3a, 16.9.3h, 16.9.3s, 16.9.4, 16.9.4c, 16.9.5, 16.9.5f, 16.9.6, 16.9.7, 16.9.8, 17.1.1, 17.1.1a, 17.1.1s, 17.1.1t, 17.1.2, 17.1.3, 17.2.1, 17.2.1a, 17.2.1r, 17.2.1v, 17.2.2, 17.2.3, 17.3.1, 17.3.1a, 17.3.1w, 17.3.1x, 17.3.2, 17.3.2a, 17.3.3, 17.3.3a, 17.3.4, 17.3.4a, 17.4.1, 17.4.1a, 17.4.1b, 17.4.2, 17.5.1, 17.5.1a, 17.6.1, 17.6.1a, 3.18.6SP_BinOS

Relevant Products

Click on a version to see all relevant bugs

Affected versions:16.10.1

Fixed versions: 16.10.1, 16.10.1a, 16.10.1b, 16.10.1c, 16.10.1d, 16.10.1e, 16.10.1f, 16.10.1g, 16.10.1i, 16.10.1s, 16.10.2, 16.10.3, 16.11.1, 16.11.1a, 16.11.1b, 16.11.1c, 16.11.1s, 16.11.2, 16.12.1, 16.12.1a, 16.12.1c, 16.12.1s, 16.12.1t, 16.12.1w, 16.12.1x, 16.12.1y, 16.12.1z, 16.12.2, 16.12.2a, 16.12.2s, 16.12.2t, 16.12.3, 16.12.3a, 16.12.3s, 16.12.4, 16.12.4a, 16.12.5, 16.12.5a, 16.12.5b, 16.12.6, 16.9.2, 16.9.2a, 16.9.2s, 16.9.3, 16.9.3a, 16.9.3h, 16.9.3s, 16.9.4, 16.9.4c, 16.9.5, 16.9.5f, 16.9.6, 16.9.7, 16.9.8, 17.1.1, 17.1.1a, 17.1.1s, 17.1.1t, 17.1.2, 17.1.3, 17.2.1, 17.2.1a, 17.2.1r, 17.2.1v, 17.2.2, 17.2.3, 17.3.1, 17.3.1a, 17.3.1w, 17.3.1x, 17.3.2, 17.3.2a, 17.3.3, 17.3.3a, 17.3.4, 17.3.4a, 17.4.1, 17.4.1a, 17.4.1b, 17.4.2, 17.5.1, 17.5.1a, 17.6.1, 17.6.1a, 3.18.6SP_BinOS

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