Note: Interface FastEthernet0/25 is configured as an access port while interface FastEthernet0/26 is only configured to belong to vlan 3. If your network is live, make sure that you understand the potential impact of any command. Issue the show platform tcam utilization command to see how much TCAM has now been utilized and how much is available. The SDM templates are used to configure system resources in the switch in order to optimize support for specific features, which depends on how the switch is used in the network. http://twaproductions.com/high-cpu/show-cpu-usage-cisco-switches.html
Please try the request again. As a workaround, issue the sdm prefer routing command, and reload the switch. This issue is documented in the Cisco bug ID CSCef89559 (registered customers only) . The debug privileged EXEC command to enable debugging of a feature. check my blog
show ip route summary Shows the number of route entries used by each protocol. The most active system processes are probably responding to the receipt of network packets. If the switch reboots, any temporary self-signed certificate is lost, and a new temporary new self-signed certificate is assigned. You use a different debug command to turn debugging on and off for each CPU receive queue.
The switch never generates a TCN when a port configured for portfast goes up or down. Maybe you'll find that helpful http://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst3750/software/troubleshooting/cpu_util.html permalinkembedsavegive gold[–]rafaelbnCCNP DC R&S[S] 0 points1 point2 points 2 years ago(0 children)I was following this article. Related Information Catalyst 3750 Series Switches High CPU Utilization Troubleshooting Catalyst 3750 Software Upgrade in a Stack Configuration with Use of the Command-Line Interface Creation and Management of Catalyst 3750 Switch Cat4k Mgmt Lopri High Cpu Before the downgrade; ERROR: Total CPU Utilization is at 99% for the past 5 seconds, which is very high (>90%). This can cause the following symptoms: - Input queue drops -
The temporary crutch for this was to manually back our ARP timeouts away from default (14400) to 300 on our voice and data vlans. These posts will be deleted without mercy. However, due to the differences in architecture and forwarding mechanisms between Cisco routers and switches, the typical output of the show processes cpu command differs significantly. https://supportforums.cisco.com/discussion/11532116/high-cpu-usage-3750-x-stack Ended up having to put the most recent version of IOS on it.
a community for 8 yearsmessage the moderatorsMODERATORSugnaughtNetwork StoogeMikecom32BridgeBumFormer CCSInoreallyimthepopeCCNAngerDavisTasardubcrosterMPLS EvangelistjpeekHSRPMasterRaceHoorayInternetDramaANGRY AND NEEDS A NEW JOBthe-packet-thrower(╯°□°）╯︵ ǝɯǝɹʇXǝVA_Network_NerdInfrastructure Architect & Cisco Bigotabout moderation team »discussions in /r/networking<>X48 · 13 comments Why is secure tunnel established in ike Show Tcam Utilization 6500 In the output, for CPU utilization for five seconds, the second number is the interrupt percentage. See the “CPU Receive Queues” section for details about the CPU queues. Conventions Refer to Cisco Technical Tips Conventions for more information on document conventions.
Couldn't find the root cause. this contact form version 12.1 no service pad service timestamps debug uptime service timestamps log datetime service password-encryption ! !--- Output supressed. ! IP Routing Table Updates When a Layer 3 switch enabled for IP routing receives a large routing table, the switch must process the routing information updates. Join the community Back I agree Powerful tools you need, all for free. Ip Input High Cpu
Current configuration : 3183 bytes ! Each received SNMP query packet is processed at the interrupt level before it is forwarded to the SNMP engine system process. CPU utilization for five seconds: 61%/31%; one minute: 86%; five minutes: 91% That 31% means that the switch CPU is processing data packets, which it should never do. have a peek here Unable to Log In Through Secure Shell and Telnet Login attemps fail when you attempt to connect to a 3750 switch through a Secure Shell or Telnet session.
Rule #4: No Low Quality Posts. Show Memory Usage Cisco A memory leak occurs when a process takes and uses memory, but does not release the memory back to the system. For information on how to resolve this issue, see Unexpected memory consumption in CEF IPC Background process.
In how many bits do I fit Did Malcolm X say that Islam has shown him that a blanket indictment of all white people is wrong? Under normal operating conditions, on a non-stackable switch at a minimum, the CPU will have a certain baseline utilization. I use nagios/centreon (not so easy to use, but very powerful and free).Well.. Hulc Led Process 3750x That would indicate a device plugged in multiple times.
The designated bridge receives the TCN, acknowledges it, and generates another one for its own root port. time for a different monitoring solution :) 0 Chipotle OP Jeremy.Spencer Aug 12, 2014 at 2:24 UTC I'm not too familiar with the Cisco Network Assistant, but taking DHCP or IEEE 802.1x failures if the switch cannot forward or respond to requests. http://twaproductions.com/high-cpu/cisco-pix-high-cpu-usage.html You can police traffic on the MAC address, the IPv4 header, the IPv6 header (if IPv6 is supported on the switch), or the Layer 4 port number.
This can occur when the ACLs are being applied in an automated fashion (from a script)." See: http://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst3750/software/troubleshooting/cpu_util.htm... Mmmm.. So I'm kind of lost... We have used spanning-tree portfast with in conjunction with spanning-tree bpduguard by default on all access ports (desktop machines).