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Cisco Bug: CSCvt94577 - Incorrect CEF entry for LISP action signal-fwd

Last Modified

Sep 10, 2020

Products (32)

  • Cisco Catalyst 9300 Series Switches
  • Cisco Catalyst 9300-48P-A Switch
  • Cisco Catalyst 9300-48UXM-A Switch
  • Cisco Catalyst 9400 Supervisor Engine-1XL-Y
  • Cisco Catalyst 9300-48U-A Switch
  • Cisco Catalyst 9300-48UN-A Switch
  • Cisco Catalyst 9300-48T-A Switch
  • Cisco Catalyst C9500-16X-E Switch
  • Cisco Catalyst C9500-24Q-A Switch
  • Cisco Catalyst C9500-40X-A Switch
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Known Affected Releases

16.12.1s 16.12.3

Description (partial)

Symptom:
Packet can be looped between two SDA default borders each pointing to one another

Conditions:
1) CEF entry on affected SDA Border (show ip cef ... internal) shows 'fwd action signal-fwd' 
2) LISP map-cache shows negative reply
2) LISP map-server shows proper edge node as a locator for affected prefix
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Bug Details Include

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  • Status
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