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Cisco Bug: CSCvi93525 - lsd lost sync with IM between active and standby RP following RP failover

Last Modified

Sep 29, 2018

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

5.3.3.24i.MPLS 5.3.3.CE

Description (partial)

Symptom:
Following RP failover , "show mpls interfaces" output shows "No" for the ldp enabled interface/s;

For example:-

RP/0/RP0/CPU0:R7-P1#show mpls interfaces
Interface		LDP	Tunnel	Static	Enabled
----------------------------------------------------------
Bundle-Ether1701        No      Yes	No	Yes
Bundle-Ether1702        No      Yes	No	Yes
Bundle-Ether1703        No      Yes	No	Yes
Bundle-Ether2701        No      Yes	No	Yes
Bundle-Ether2702        No      Yes	No	Yes
Bundle-Ether2703        No      Yes	No	Yes
tunnel-te1                   Yes     No 	No	Yes
tunnel-te2                   Yes     No 	No	Yes


NOTE:- If the interface has only ldp enabled, and is NOT in mpls TE or static ldp config, In problem condition the affected interface/s will NOT be displayed in the output of "show mpls interfaces"

Conditions:
Issue can trigger during RP failover/RP replacement/chassis reload.
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