Cisco Bug: CSCtb65574 - PBTS:Labeled traffic not going via default class, but via class0 tunnel
Jan 08, 2017
- Cisco Carrier Routing System
Known Affected Releases
3.6.0.LC 3.7.0.LC 3.8.0.LC 3.8.3.BASE 3.9.0.LC
Symptom: With PBTS configured on a CRS-1 router traffic maybe forwarded to the incorrect path if the bottom label EXP bits are different from the IPv4 precedence bits. Conditions: This problem only occurs when MPLS traffic is received and MPLS labels are popped with the underlying IPv4 traffic then forwarded into a new MPLS tunnel and the MPLS EXP bits of the popped label is different than the IPv4 precedence bits.
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