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Cisco Bug: CSCul33007 - Negative MS proxy reply for 15 mins for registered unreachable RLOCs

Last Modified

Nov 08, 2018

Products (97)

  • Cisco IOS
  • Cisco 819 Hardened Integrated Services Router
  • Cisco 886VA-CUBE Integrated Services Router
  • Cisco ASR 901-6CZ-F-D Router
  • Cisco 881SRSTW Integrated Services Router
  • Cisco 2951 Integrated Services Router
  • Cisco C892FSP Integrated Services Router
  • Cisco 812 CiFi Integrated Services Router
  • Cisco 892W Integrated Services Router
  • Cisco C897VA Integrated Services Router
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Known Affected Releases

15.4(1)S 15.4(1)T

Description (partial)

Symptom:
When a LISP Map-Server is handling a Map-Request carrying ITR RLOCs that have overlapping scopes with the ETR registration RLOCs but all the ETR RLOCs have been registered as unreachable then the Map-Server proxy replies with a negative reply. The TTL of the negative reply is incorrectly set to 15 minutes. It should be set to 1 minute to improve convergence and to be consistent with other temporary outage cases such as matching an unregistered prefix or one whose ETR RLOCs are not reachable from the MS.

Conditions:
LISP Map-Server receiving an ETR registration with all the locators marked as unreachable.
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Bug Details Include

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