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Cisco Bug: CSCus53913 - AppNav: Tunnel MTU results in fragmentation after Tunnel interface flap

Last Modified

Jan 30, 2017

Products (1)

  • Cisco ASR 1000 Series Aggregation Services Routers

Known Affected Releases


Description (partial)

"show ip traffic" is showing fragments when AppNav (or DPSS) is being used. Redirected packets are dropped by the SN and not returned.

"show ip traffic" is showing fragments. Either the SN facing interface is configured with > 1500 bytes mtu. Or > 1500 bytes packets are diverted.

Tunnel interface for AppNav went down and come back up shortly before the traffic drop begins.
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