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Cisco Bug: CSCvs79485 - After an upgrade the odd VLAN-id numbers are written incorrectly in TCAM

Last Modified

May 27, 2020

Products (65)

  • Cisco Nexus 9000 Series Switches
  • Cisco Nexus 3548-X Switch
  • Cisco Nexus 92348GC-X Switch
  • Cisco Nexus 9516 Switch
  • Cisco Nexus 93600CD-GX Switch
  • Cisco Nexus 3548 Switch
  • Cisco Nexus 3636C-R Switch
  • Cisco Nexus 31108TC-V Switch
  • Cisco Nexus 92160YC-X Switch
  • Cisco Nexus 9396PX Switch
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Known Affected Releases

9.3(3)

Description (partial)

Symptom:
A decrease on traffic monitoring it is observed from NDB after an upgrade to 9.3(3)


Example:


ACL ACEs:
 permit udp any eq 2123 192.168.128.1 vlan 113 redirect port-channel4096,port-channel116 [match=0]
 permit udp 192.168.128.1 any eq 2123 vlan 113 redirect port-channel4096,port-channel116 [match=0] << vlan 113


And TCAM entries for these ACL ACEs:
 
 redirect(0x1) udp 192.168.128.1  0.0.0.0/0 eq 2123 vlan 112  encap 0x1 routeable 0x1  [0]
 redirect(0x41) udp 192.168.128.1  0.0.0.0/0 vlan 112 fragment   [0] <<<<<<<<<<<<<<<<<< vlan 112
 redirect(0x41) udp 192.168.128.1  0.0.0.0/0 eq 2123 vlan 112  encap 0x0 routeable 0x0  [0]
 redirect(0x1) udp 0.0.0.0/0 eq 2 123 192.168.128.1  vlan 112  encap 0x1 routeable 0x1  [0]
 redirect(0x41) udp 0.0.0.0/0 192.168.128.1  vlan 112 fragment   [

Conditions:
Upgrade from a prior version to 9.3(3)
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