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Cisco Bug: CSCtd30544 - Netflow dest intf is NULL for packets punted from TURBO to LES sw path

Last Modified

Jan 29, 2017

Products (11)

  • Cisco 7200 Series Routers
  • Cisco 7206 Router
  • Cisco 7301 Router
  • Cisco 7206VXR Router
  • Cisco 7204 Router
  • Cisco 10000 Performance Routing Engine 3 (PRE3)
  • Cisco 7202 Router
  • Cisco 7200 Series NPE-G2 Network Processing Engine
  • Cisco 10000 Performance Routing Engine 2 (PRE2)
  • Cisco 7201 Router
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Known Affected Releases

12.2(31)SB16

Description (partial)

Symptoms: Netflow is showing Null in the destination interface even though 
packets are not getting dropped or blocked.
 
Conditions: This symptom is seen when connected to the LNS via VPDN and 
browsing HTTP. Intermittently Null output is seen as the destination 
interface as the packet being punted between different CEF switching paths 
due to <CmdBold>ip tcp adjust-mss<noCmdBold> <CmdArg>value<noCmdArg> 
configuration that is applied on the destination interface.
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