Guest

Preview Tool

Cisco Bug: CSCuq24471 - Unicast RPF drop counter not updated

Last Modified

May 31, 2017

Products (1)

  • Cisco Catalyst 4500 Series Switches

Known Affected Releases

15.2(2.1)

Description (partial)

Symptom:
Highlighted counter remains 0.

F340.04.04-4500-4#show ip traffic | s IP stat
IP statistics:
  Rcvd:  2772 total, 720 local destination
         0 format errors, 0 checksum errors, 770 bad hop count
         0 unknown protocol, 0 not a gateway
         0 security failures, 0 bad options, 11 with options
  Opts:  0 end, 0 nop, 0 basic security, 0 loose source route
         0 timestamp, 0 extended security, 0 record route
         0 stream ID, 0 strict source route, 11 alert, 0 cipso, 0 ump
         0 other
  Frags: 0 reassembled, 0 timeouts, 0 couldn't reassemble
         0 fragmented, 0 couldn't fragment
  Bcast: 6 received, 2 sent
  Mcast: 686 received, 694 sent
  Sent:  735 generated, 0 forwarded
  Drop:  1 encapsulation failed, 0 unresolved, 0 no adjacency
         0 no route, >>> 0 unicast RPF, 0 forced drop
         0 options denied, 0 source IP address zero

Conditions:
Below needs to be configured on the L3 interface:

"ip verify unicast source reachable-via rx allow-default"
Bug details contain sensitive information and therefore require a Cisco.com account to be viewed.

Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
  • Severity
  • Known Fixed Releases
  • Related Community Discussions
  • Number of Related Support Cases
Bug information is viewable for customers and partners who have a service contract. Registered users can view up to 200 bugs per month without a service contract.