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Cisco Bug: CSCsg31554 - Missing ifIndex for MFR subinterfaces after linecard OIR

Last Modified

Feb 10, 2017

Products (1)

  • Cisco 12000 Series Routers

Known Affected Releases

12.0(32)SY1

Description (partial)

Symptom:

SNMP ifIndex does not exist for MFR subinterfaces on CHOC12/DS1-IR-SC ISE line card after removal and reinsertion (OIR) of the card.

Conditions:

This was seen in release 12.0(32)SY1 when using a configuration with a large number of serial interfaces configured, including a 8xDS1 MFR bundle.  The MFR interface had a corresponding point-to-point subinterface with one DLCI defined.  The subinterface was pollable before removal and insertion of the card, but the ifIndex is missing afterward.
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