Guest

Preview Tool

Cisco Bug: CSCtc81651 - c871 multicast: pppoe ID not updated in mcache after dialer flap

Last Modified

Feb 08, 2017

Products (1)

  • Cisco IOS

Known Affected Releases

12.4(15)T10

Description (partial)

Symptom:
After a quick flap of pppoe session, the mcache is not updated
with the correct pppoe session id. This will result in wrong
mac string that will lead to packet drops in the downstream
router.

Condition:
The problem occurs only when the pppoe session is flapped within 
a very short delay. The quick flap can be done by one of the following.
- a quick shut/no shut of the dialer interface on the 871 
  (if you wait between shut and no shut the problem does not occur).
- a 'clear interface virtual-access x.y' on the downstream router
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.