Cisco Bug: CSCvi57039 - HSL floods Tunnel interface on top of Multilink interface with Netflow template packets
Sep 21, 2018
- Cisco 3G Wireless WAN
Known Affected Releases
Symptom: Very high output rate seen on Tunnel interface. R1(config)#do sh int tunn 100 | in rate Queueing strategy: fifo 5 minute input rate 1000 bits/sec, 1 packets/sec 5 minute output rate 16860000 bits/sec, 1931 packets/sec A lot of Netflow template packets are sent just after HSL is enabled. Conditions: HSL is enabled and traffic is sent through a Tunnel interface which uses a Multilink interface as source interface. This is just seen on routers with Multilink interfaces. The same configuration with Ethernet interfaces works fine.
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