In my core switch when i do sh proc cpu i see overall utilization of the sup(SUP1A with MSFC-3) 30-34%, the 2 contributing processes to this high utilization are sptbpdutx(14%)and sptbpdurx(15%). What is the cause of high utilization of these 2 processes and how to detect it.
When i see output of command "sh spantree statistics 1/1 2" then i see config bpdu's xmitted (port/VLAN) increasing every sec while config bpdu'd recieved and TCN bpdu's not increasing, and this happens at each trunk port of core switch, hellow timer is set to default 2 sec, what i feel is i should increase the hello timer since it is sending config bpdu's every 2 sec. what do u feel ?
If you are doing a lot of trunking then "manually" prune off any vlans that are not needed across trunked links , if you have it wide open then the switch has to allocate spanning tree instances to all vlans allowed which drives up the cpu...
We are pleased to announce availability of Beta software for 16.6.3.
16.6.3 will be the second rebuild on the 16.6 release train targeted
towards Catalyst 9500/9400/9300/3850/3650 switching platforms. We are
looking for early feedback from customers befor...
Introduction Featured Speakers Luis Espejel is the Telecommunications
Manager of IENova, an Oil & Gas company. Currently he works with Cisco
IOS® and Cisco IOS XE platforms, and NX to some extent. He has also
worked as a Senior Engineer with the Routing P...
In this session you can learn more about Layer 3 multicast and the best
practices to identify possible threats and take security measures. It
provides an overview of basic multicast, the best security practices for
use of this technology, and recommendati...