Turn on spanning-tree config debugging for whatever flavour of STP you're running.<div><br></div><div>scott<br><br><div class="gmail_quote">On Fri, Mar 4, 2011 at 2:30 PM, Randy McAnally <span dir="ltr"><<a href="mailto:rsm@fast-serv.com">rsm@fast-serv.com</a>></span> wrote:<br>

<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">I have a strange CPU utilization which seems unaccounted for on a<br>
FESX448-PREM...can anyone assist?<br>
<br>
telnet@xxx#sh cpu<br>
53 percent busy, from 27 sec ago<br>
1   sec avg: 53 percent busy<br>
5   sec avg: 54 percent busy<br>
60  sec avg: 53 percent busy<br>
300 sec avg: 52 percent busy<br>
<br>
telnet@xxx#sh processes cpu<br>
Process Name   5Sec(%)   1Min(%)   5Min(%)   15Min(%)   Runtime(ms)<br>
ARP              0.02      0.02      0.02      0.02        7278278<br>
BGP              0.00      0.00      0.00      0.00              0<br>
DOT1X            0.00      0.00      0.00      0.00              0<br>
GVRP             0.00      0.00      0.00      0.00              0<br>
ICMP             0.00      0.00      0.00      0.00        2140527<br>
IP               0.07      0.07      0.05      0.04       20889632<br>
OSPF             0.00      0.00      0.00      0.00              8<br>
RIP              0.00      0.00      0.00      0.00          46564<br>
STP              0.53      0.64      0.58      0.52      322789092<br>
VRRP             0.00      0.00      0.00      0.00         183495<br>
Process Name   5Sec(%)   1Min(%)   5Min(%)   15Min(%)   Runtime(ms)<br>
IPv6             0.00      0.00      0.00      0.00        3881760<br>
ICMP6            0.00      0.00      0.00      0.00        2252864<br>
ND6              0.00      0.00      0.00      0.00          85671<br>
RIPng            0.00      0.00      0.00      0.00              0<br>
OSPFv3           0.00      0.00      0.00      0.00              0<br>
IPV6_RX          0.00      0.00      0.00      0.00          37872<br>
<br>
~Randy<br>
<br>
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</blockquote></div><br></div>