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Cisco Bug: CSCur10076 - Packets getting discards dropped from standby RP to taiko MSC.

Last Modified

Sep 17, 2019

Products (18)

  • Cisco Carrier Routing System
  • Cisco CRS-X 8-Slot Single-Shelf System
  • Cisco CRS-1 Line Card Chassis (Dual)
  • Cisco CRS-1 Line Card Chassis (Multi)
  • Cisco CRS-X Multishelf System
  • Cisco CRS-1 16-Slot Line Card Chassis
  • Cisco CRS-3 Multishelf System
  • Cisco CRS-1 4-Slot Single-Shelf System
  • Cisco IOS XR Software
  • Cisco CRS-3 8-Slot Single-Shelf System
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Known Affected Releases

5.1.3.BASE

Description (partial) 

Symptom:
After FP-140/MSC-140 (Taiko) insertion/reload in a CRS containing FC-400 fabric cards, the following diagnostic failure logs may appear:

RP/0/RP1/CPU0:Oct 22 18:53:31.311 : online_diag_rp[348]: %DIAG-XR_DIAG-3-FABRIC_PING_FAILURE : (U) Fabric Ping Failure - data path (Level 3 L) on plane 0, 2 of 9 nodes (22%) failed: 0/0/CPU0, 0/6/CPU0
RP/0/RP1/CPU0:Oct 22 18:53:31.312 : online_diag_rp[348]: %DIAG-XR_DIAG-3-FABRIC_PING_FAILURE : (U) Fabric Ping Failure - data path (Level 3 L) on plane 1, 2 of 9 nodes (22%) failed: 0/0/CPU0, 0/6/CPU0

This can eventually lead to process blocking and GSP issues:

LC/0/0/CPU0:Oct 22 17:19:02.528 : bfd_agent[128]: gang_sendv_nodeset: gang_sendv_subset failed
LC/0/0/CPU0:Oct 22 17:19:02.528 : spa_ge_v2(1)[316]: gang_sendv_nodeset: gang_sendv_subset failed
LC/0/0/CPU0:Oct 22 17:19:05.563 : spa_ge_v2(2)[317]: gang_sendv_nodeset: gang_sendv_subset failed
LC/0/0/CPU0:Oct 22 17:19:16.187 : plim_xge_otn_flex[287]: gang_sendv_nodeset: gang_sendv_subset failed
LC/0/0/CPU0:Oct 22 17:19:22.258 : bfd_agent[128]: gang_sendv_nodeset: gang_sendv_subset failed
LC/0/0/CPU0:Oct 22 17:19:23.270 : spa_ge_v2(1)[316]: gang_sendv_nodeset: gang_sendv_subset failed

Conditions:
FP-140/MSC-140 (Taiko) insertion/reload in a CRS containing FC-400 fabric cards
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Bug Details Include

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