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Cisco Bug: CSCtb78951 - MALLOC failure caused by I/O memory fragmentation on switch with REP

Last Modified

Jan 28, 2017

Products (98)

  • Cisco ME 3400 Series Ethernet Access Switches
  • Cisco Catalyst 3560-12PC-S Compact Switch
  • Cisco Catalyst 3560E-48PD-SF Switch
  • Cisco Catalyst 3560E-48PD-E Switch
  • Cisco ME 3400EG-2CS-A Switch
  • Cisco Catalyst 2960-48TT-S Switch
  • Cisco ME 3400-24TS-A Switch
  • Cisco Catalyst 3560G-48PS Switch
  • Cisco Catalyst 3750V2-24PS Switch
  • Cisco Catalyst 3560E-24TD-S Switch
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Known Affected Releases

12.2(46)SE 12.2(50)SE 12.2(50)SE1 12.2(50)SE3

Description (partial)

Symptom:

A metro Ethernet switch configured for Resilient Ethernet Protocol (REP) may experience MALLOC failures caused by I/O memory fragmentation.

Conditions:

All of the following must be true:

- The switch must be configured for REP.

- There is poor point-to-point physical link integrity with a neighbor REP node resulting in %REP-4-LINKSTATUS messages and/or REP control Protocol Data Unit (PDU) packet loss.
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Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
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