OpenForum RSS: �� CPU (cisco3560)

�� CPU (cisco3560) (surefire)

Sat, 09 May 2009 11:00:14 GMT

SUY, ��.
�� sw forwarding ��
sw forwarding 29749132 0 0 0 0
� �� ?

IPv4 unicast indirectly-connected routes: 1040/8320 407/3148

#show platform ip unicast counts

# of HL3U fibs 4076
# of HL3U adjs 1016
# of HL3U mpaths 0
# of HL3U covering-fibs 0
# of HL3U fibs with adj failures 0
Fibs of Prefix length 0, with TCAM fails: 0
Fibs of Prefix length 1, with TCAM fails: 0
Fibs of Prefix length 2, with TCAM fails: 0
Fibs of Prefix length 3, with TCAM fails: 0
Fibs of Prefix length 4, with TCAM fails: 0
Fibs of Prefix length 5, with TCAM fails: 0
Fibs of Prefix length 6, with TCAM fails: 0
Fibs of Prefix length 7, with TCAM fails: 0
Fibs of Prefix length 8, with TCAM fails: 0
Fibs of Prefix length 9, with TCAM fails: 0
Fibs of Prefix length 10, with TCAM fails: 0
Fibs of Prefix length 11, with TCAM fails: 0
Fibs of Prefix length 12, with TCAM fails: 0
Fibs of Prefix length 13, with TCAM fails: 0
Fibs of Prefix len

�� CPU (cisco3560) (SUY)

Wed, 06 May 2009 10:18:17 GMT

>>>#sh processes cpu sorted
>>>CPU utilization for five seconds: 32%/20%; one minute: 38%; five minutes: 39%
>>>�� (�� 12%).
>>
>>� five seconds �� - �� , �� -
>>�� (�� ).
>>�.�. �� 12% ��. (32%-20%)
>
>��. � �� .

�� :

show controllers cpu-interface, �� sw forwarding

show platform tcam utilization �� tcam:

IPv4 unicast indirectly-connected routes: 272/2176 8/44
�� 2176/2176

show platform ip unicast counts, �� Fibs of Prefix length, with TCAM fails:

�� CPU (cisco3560) (surefire)

Tue, 05 May 2009 14:51:06 GMT

>>#sh processes cpu sorted
>>CPU utilization for five seconds: 32%/20%; one minute: 38%; five minutes: 39%
>>�� (�� 12%).
>
>� five seconds �� - �� , �� -
>�� (�� ).
>�.�. �� 12% ��. (32%-20%)

��. � �� .

�� CPU (cisco3560) (surefire)

Tue, 05 May 2009 14:50:27 GMT

>��, �� sh proc cpu sort | e 0.00
>
>� �� , �� CEF'�.
>
>sh cef not-cef
>sh ip cef summ

�� .
#sh cef not-cef-switched
% Command accepted but obsolete, see 'show (ip|ipv6) cef switching statistics [feature]'

IPv4 CEF Packets passed on to next switching layer
Slot No_adj No_encap Unsupp'ted Redirect Receive Options Access Frag
RP 125986537 0 125988169 0 3 85 0 0

#sh ip cef summary
IPv4 CEF is enabled for distributed and running
VRF Default:
1495 prefixes (1495/0 fwd/non-fwd)
Default network 0.0.0.0/0
Table id 0, 0 resets
Database epoch: 1 (1495 entries at this epoch)

�� (� �� ), �� Options 85 (� �� - 0)

�� CPU (cisco3560) (hanabana)

Tue, 05 May 2009 14:16:19 GMT

>#sh processes cpu sorted
>CPU utilization for five seconds: 32%/20%; one minute: 38%; five minutes: 39%
>�� (�� 12%).

� five seconds �� - �� , �� - �� (�� ).
�.�. �� 12% ��. (32%-20%)

�� CPU (cisco3560) (trianon)

Tue, 05 May 2009 12:58:41 GMT

>#sh processes cpu s
>
>CPU utilization for five seconds: 81%/67%; one minute: 80%; five minutes: 78%
>
> PID Runtime(ms) Invoked uSecs
> 5Sec 1Min 5Min TTY Process
>
> 7 103857823 105895692
>

��, �� sh proc cpu sort | e 0.00
� �� , �� CEF'�.
sh cef not-cef
sh ip cef summ

�� CPU (cisco3560) (SUY)

Tue, 05 May 2009 12:08:52 GMT

Other Events Causing High CPU Utilization
• Frequent or large number of IGMP requests—the CPU processes IGMP messages .
• Large number of IP SLAs monitoring sessions—the CPU generates ICMP or traceroute packets.
• SNMP polling activities, particularly MIB walk—the Cisco IOS SNMP engine executes SNMP
requests.
• Large number of simultaneous DHCP requests, such as when links are restored to numerous clients
(when the switch is acting as DHCP server).
• ARP broadcast storms.
• Ethernet broadcast storms.

�� CPU (cisco3560) (SUY)

Tue, 05 May 2009 12:04:03 GMT

>[�� ]
>>
>>�.�. �� 5-�� (5Sec) �� 32%, �� (1Min)
>>- 38%, �� - 39% ? �� -
>>�� (�� 12%).
>>�� 80-90% � ��
>>�� . �� .
>
>�� - sh proc cpu
>
>�� () - arp,broadcast storm,pbr ...

�� , �� .

ARP Input
High CPU utilization in the Address Resolution Protocol (ARP) Input process occurs if the router has to originate an excessive number of ARP requests. The router uses ARP for all hosts, not just those on the local subnet, and ARP requests are sent out as broadcasts, which causes more CPU utilization on every host in the network. ARP requests for the same IP address are rate-limited to one request every two seconds, so an excessive number of ARP requests would have to originate for differen

�� CPU (cisco3560) (surefire)

Tue, 05 May 2009 10:04:33 GMT

#sh processes cpu s

CPU utilization for five seconds: 81%/67%; one minute: 80%; five minutes: 78%
PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process
7 103857823 105895692 980 2.38% 2.49% 2.51% 0 ARP Input
127 57684345 4644055 12421 1.59% 1.58% 1.56% 0 PI MATM Aging Pr
157 100063032 251486020 397 1.59% 2.43% 2.45% 0 IP Input
4 16717279 922354 18124 0.79% 0.31% 0.32% 0 Check heaps
222 15100698 7126502 2118 0.63% 0.43% 0.34% 0 CEF: IPv4 proces
30 17677805 1848768 9561 0.47% 0.41% 0.39% 0 Compute load avg
106 12997088 3476665 3738 0.47% 0.56% 0.58% 0 HL3U bkgrd proce
182 8856877 48238337 183 0.31% 0.15% 0.22% 0 IGMPSN
47 50332 945255 53 0.15% 0.01% 0.00% 0 hrpc <- response
18 8801829 1180785 7454 0.15% 0.24% 0.23% 0 HC Counter Timer
115 1843014 945228 1949 0.15% 0.13% 0.15% 0 HQM Sta

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OpenForum RSS: �� CPU (cisco3560)

�� CPU (cisco3560) (surefire)

�� CPU (cisco3560) (SUY)

�� CPU (cisco3560) (surefire)

�� CPU (cisco3560) (surefire)

�� CPU (cisco3560) (hanabana)

�� CPU (cisco3560) (trianon)

�� CPU (cisco3560) (SUY)

�� CPU (cisco3560) (SUY)

�� CPU (cisco3560) (surefire)