Preview Tool

Cisco Bug: CSCvi71376 - OSPF SSPF: tilfa ALGORITHM fails to compute repair path, reports incorrect reason of too many labels

Last Modified

Mar 28, 2019

Products (163)

  • Cisco IOS
  • Cisco Catalyst 3850-48XS-F-S Switch
  • Cisco Catalyst 3650-12X48UQ-L Switch
  • Cisco Catalyst 3650-24PD-E Switch
  • Cisco Catalyst 9300-48UXM-A Switch
  • Cisco Catalyst 3650-48FQ-E Switch
  • Cisco Catalyst 3650-24PDM-E Switch
  • Cisco Catalyst 9400 Supervisor Engine-1XL-Y
  • Cisco Catalyst 9410R Switch
  • Cisco Catalyst 3650-48TQ-L Switch
View all products in Bug Search Tool Login Required

Known Affected Releases


Description (partial)

OSPF TILFA post convergence path is not getting calculated for certain prefixes
and it is incorrectly reporting too many labels required (requires 255 labels
available 10), even though repair path needs only one label.

OSPFv2 is configured.
OSPFv2 Segment-Routing is configured.
OSPFv2 fast-reroute per-prefix enable is configured.
OSPFv2 fast-reroute per-prefix ti-lfa is configured.
Anycast prefix exist in the area
Anycast prefix is attached to the firsthop nbr and a repair node in the ti-lfa repair path
Bug details contain sensitive information and therefore require a account to be viewed.

Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
  • Severity
  • Known Fixed Releases
  • Related Community Discussions
  • Number of Related Support Cases
Bug information is viewable for customers and partners who have a service contract. Registered users can view up to 200 bugs per month without a service contract.