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Cisco Bug: CSCur06155 - L2VPN Interoperability - Alcatel-Lucent Negative MAC Flush notification

Last Modified

Jul 30, 2018

Products (7)

  • Cisco Carrier Routing System
  • 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


Description (partial)

An ASR9000 does not understand the negative mac flush notification sent by an ALU PE. The following debug message can be seen in ASR9000:

RP/0/RSP0/CPU0:Sep 12 06:37:21.607 : l2vpn_mgr[1176]: DBG-ATOM: ldp_atom_pw_lbl_msg_decode:3646, 'Failed to process msg_type=769, tlv_cnt=3

A multi-vendor network with ASR9000 and ALU PEs, where ALU is configured to transmit negative mac flushes in case of link down events
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