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Cisco Bug: CSCuj30512 - Discontinuous AAL5 traffic on ATM SPA on IOS-XR

Last Modified

Mar 30, 2018

Products (15)

  • Cisco Carrier Routing 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 IOS XR Software
  • Cisco CRS-1 4-Slot Single-Shelf System
  • Cisco CRS-3 16-Slot Single-Shelf System
  • Cisco CRS-3 8-Slot Single-Shelf System
  • Cisco CRS-1 Fabric Card Chassis
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Known Affected Releases

4.1.2.FWDG

Description (partial)

Symptom:
AAL5 traffic  from an MGX to a CRS stops for periods of time on the CRS SPA-3XOC3-ATM-V2 SIP-800. During these periods F5 OAM traffic on the VC has no disruptions.
Customer traffic greater than 40 bytes (AAL5 traffic in more than one cell) is incorrectly flagged as exceeding the MTU.

Conditions:
Traffic from an MGX 8250 ATM switch connected to an ATM SPA on the CRS with a VC (PVC) configured with AAL5 for L3 connection.
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Bug Details Include

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