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Cisco Bug: CSCum65025 - L3VPN packets dropped on Imposition Ingress on CRS-X MSC as wrong TLUID

Last Modified

Aug 08, 2018

Products (1)

  • Cisco Carrier Routing System

Known Affected Releases

5.1.1.BASE

Description (partial)

Symptom:
L3VPN packets from or to customer VRFs will be dropped on MSC-X/FP-X on imposition or disposition side with drop reason "TLU entry has invalid TLU_ID"

Conditions:
1. PBTS is enabled on TE tunnel on a PE router
2. This TE tunnel is using link1 as outgoing interface (towards core)
3. FRR is enabled on link1
4. VRF traffic is chosing (based on L3/L4 paramter hash) link1 to enter the core
5. Under these circumstances, if FRR is triggerred by shutting remote side of link1, the problem is exposed.
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