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Cisco Bug: CSCuj36089 - Packet loss during S,G creation

Last Modified

Jan 28, 2017

Products (143)

  • Cisco Catalyst 3750-X Series Switches
  • Cisco Catalyst 2960C-12PC-L Switch
  • Cisco Catalyst 2960S-F48FPS-L Switch
  • Cisco Catalyst 3560E-48PD-E Switch
  • Cisco Catalyst 3560X-48P-S Switch
  • Cisco Catalyst 3750V2-24FS Switch
  • Cisco Catalyst 2960-24TC-L Switch
  • Cisco Catalyst 3560E-48PD-SF Switch
  • Cisco Catalyst 3560-12PC-S Compact Switch
  • Cisco Catalyst 3560X-48T-E Switch
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Known Affected Releases

15.0(2)SE2

Description (partial)

Symptom:
In a topology where a 3750X acts as the multicast router and a receiver exists for a multicast group (*,G) prior to the source sending multicast traffic, some of the initial packets sent by the source may be lost. Once the (S,G) is programmed for the traffic sent by the source for the multicast group all subsequent multicast traffic reaches the receiver.

Conditions:
A topology where a 3750X acts as the multicast router and a receiver exists for a multicast group (*,G) prior to the source sending multicast traffic
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