On Wednesday, February 05, 2014 05:47:03 PM Martin T wrote: > According to "sh ip route summary", RAM usage for BGP was > around 85MiB. What exactly is causing such high CPU > usage? I should have run "sh processes cpu sorted 5min" > during the high CPU usage, but forgot to do so.
This switch does not have enough FIB to support a full IPv4 routing table. So my guess is whatever isn't making it into the FIB is being programmed into software, hence the high CPU utilization for traffic associated with those routes. There has been some work by the SPAG team at Cisco to support BGP-SD on the ME3600X. I'd suggest looking at that if you want to carry a full table in RAM (control plane). But you'd still need 0/0 and ::/0 to take care of the forwarding plane. Mark.
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