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Cisco Bug: CSCur27458 - IRB traffic is not forwarded correctly for certain groups

Last Modified

Jul 21, 2018

Products (7)

  • Cisco ASR 9000 Series Aggregation Services Routers
  • Cisco ASR 9922 Router
  • Cisco ASR 9010 Router
  • Cisco ASR 9904 Router
  • Cisco ASR 9006 Router
  • Cisco ASR 9001 Router
  • Cisco ASR 9912 Router

Known Affected Releases

5.1.3.BASE

Description (partial)

Symptom:
IRB traffic loss due to RSV_DROP_L2MC_NO_OLIST

Conditions:
1. 3rd octet of the multicast group is 1 or 2 (such as 224.2.2.10)
2. One of the following scenarios holds (which means PW are used or split-horizon is configured):
    - SHG1 used; EC: N, EC1: N, EC2: 0
    - SHG2 used; EC: N, EC1: N, EC2: 0
    - SHG2 used; EC: N, EC1: 0, EC2: N

where EC = total olist count, EC1 = olist count for SHG1 and EC2 = olist count for SHG2.

Related Community Discussions

5.1.3 Feature Pack (FP) Content discussion board
This community page to share the content, delivery dates and more details on Feature Packs.   FP2 Content All DDTSs tracking changes in FP2. Features: ---------   Features CSCur18267: ASR9k - 512 Bundle Ethernet enhancement   Features CSCun46269: Need changes in LSPV and PI FIB to send engine type for hashing.   Features CSCur74985: BFD on bundle vlan not working on cluster after upgrade to 5.1.3   Features CSCun11455: Need changes in cpp ucode to send eng type for punt pkt.   Features CSCug63470: ...
Latest activity: Mar 15, 2016
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Bug Details Include

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  • Status
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