Cisco :: Is 99% Routing Proc Usage Safe?
Jul 8, 2012
Is using your router's processor, i.e. 99%, all the time going to burn out the processor? I know for sure that we can totally run our desktops and GPUs at 99-100% pegged 24/7 as long as they remain cooled. Is there anything dangerous about having this happen with Cisco Routers? i.e. they will actually burn up? I understand that routing performance will drop when pegging max usagehere is no root issue or reason I need to justify using 99%. Occasionally when intervlan routing, using my routers processor, and not my l3 switch in certain labs it will hit 99% when transferring large files between VLANs.
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Apr 3, 2013
however recently when i check my internet usage log on my wireless company (Rogers) the usage is totally off from what my bandwidth tracker shows me. So i decide to turn off my wifi and see what happens, there has always been this weird wifi connection appearing whenever my wifi appears, then afterwards when i turn off my wifi the suspicious wifi connections disappear. is this possible that someone is using our wifi? i might just be overreacting but it has brought me to concern that if the usage continues my family will have to end up paying over $30 for extra internet use. it is very frustrating me because when i check my DHCP client table it only shows 3 connection, ethernet - my desktop which is not turned on, 2 wireless connection - my laptop and my sister's laptop.
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Mar 11, 2012
Cisco Safe harbor, I came nto know this can be a replacement for Sup 720.
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Mar 20, 2013
We are running Cisco 6509-e and we are running load test and when traffic reach 80 mbps switch start reponding very slow. I checked CPU usage and it was using 100% and connection to the switch from outside to inside are 80K. once connection dropp Cisco release CUP and it start responding normal. [code]
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Sep 7, 2012
My 4500 core always in 60 % cpu utility , and when i run #sh proc cpu sorted i find that
55 29725041543795572214 0 39.43% 41.40% 41.39% 0 Cat4k Mgmt LoPri
Which mean that this process is the top one , and when i run #sh platform health i found that Stub-JobEventSchedul
10.00 15.98 10 64 100 500 20 17 12 29269:55 K2 CpuMan Review
30.00 35.60 30 48 100 500 49 46 32 52390:52
Those two process are the top and they already exceed their maximum rang and when i run #sh platform cpu packet statistics i can find that Packets Received by Packet Queue
Queue Total 5 sec avg 1 min avg 5 min avg 1 hour avg
---------------------- --------------- --------- --------- --------- ----------
Esmp 5053121950 475 462 340 326
L2/L3Control 244395185 17 8 5 11
Host Learning 67315739 0 0 0 0
L3 Fwd Low 346689615 73 23 14 13
L2 Fwd Low 5336180603 1180 1129 831 804
L3 Rx Low 2287913 0 0 0 0
RPF Failure 7510829 1 0 0 0
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Mar 25, 2013
We are buying some C6509Es with Sup2Ts and 8 port 10G cards. Would like to get a close estimate of the power consumption for our configured chassis. Does C6509E have at least the following components that can share their show power output.
Catalyst 6500 Enhanced 9-slot chassis 14RU no PS no Fan Tray1Catalyst 6509-E Chassis Fan Tray1Catalyst 6500 24-port GigE Mod: fabric-enabled with DFC41C6K 8 port 10 Gigabit Ethernet module with DFC4 (Trustsec)1Catalyst 6500 Dist Fwd Card DFC416908 10G baseboard1Cat6500 6000W AC Power Supply2Cat 6500 Sup 2T with 2 x 10GbE and 3 x 1GbE with MSFC5 PFC42Internal 1G Compact Flash2Cat 6k 80G Sys Daughter Board Sup2T PFC42Catalyst 6500 Supervisor Engine 2T Baseboard2Catalyst 6500 2GB memory for Sup2T and Sup2TXL2
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Jul 19, 2011
i have cisco 7600 router , here is show run : Gateway7600#sh run Building configuration...
Current configuration : 4787 bytes
!
! Last configuration change at 09:08:04 UTC Sat Apr 20 2013 by xxxx
!
version 15.2
service timestamps debug datetime msec
[Code]....
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May 15, 2012
I'm having issue with one stubborn process that is consuming nearly all the CPU on all of my switches. I tried googling it, but had no luck. The process is "hulc nrgyz PD di"
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Jun 19, 2012
We recently configured a stack of four 48 port 3750-x switches . We are noticing high CPU usage. "Hulc LED process" seems pretty high. This has coincided with VMware servers getting slow and non-responsive at times, perhaps a coincidence, not sure. Below I provided some outputs about how to diagnose it.
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Feb 26, 2013
I have a 2 Cisco 3750X stacked working as CORE switches but not in production yet showing a high CPU utilization and I would like to see with you whether you think this is normal or a IOS upgrade/downgrade should be performed.
I have very low traffic coming through as this is not yet in production:
122222333331111122222222222222222222222221111122222222222222 933333999999999922222777772222277777333339999922222111111111 100 90 80 70 60 50 40 ***** 30 ***** ***** ***** 20 ********************************************************** 10
[Code].....
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Aug 5, 2012
For etherchannel of 2 links on a 3750 switch, if 1 link ever gets saturated, will the other link be used as well if the excess traffic is part of the same flow?Or that excess traffic will simply be dropped?
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Apr 9, 2013
The process "HL3U bkgrd proce" is causing high CPU usage issues in a switch 3750X-24T-L. The IOS is 15.0.2-SE2.
show platform ip unicast failed route and adjacencies displays a lot of entries, I've seen up to 1200.
After restart HL3U bkgrd proce takes around 10 - 20 % CPU, some hours later 99%.
A coupe of times we got logs like this:
%SYS-3-CPUHOG: Task is running for (2136)msecs, more than (2000)msecs (172/73),process = HL3U bkgrd process.
-Traceback= 0x1BE9C3Cz 0x27E103Cz 0x27E0F64z 0x50DCF8z 0x50DE98z 0x503BD0z 0x4F7718z 0x1FF0A18z 0x1F46DECz 0x1F4816Cz 0x1F48698z 0x1F499C8z 0x1FF15D0z 0x2000430z 0x1FF55B4z 0x1FF5FA4z
[Code].....
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Nov 30, 2011
I had a lot of problems with TCAM table in the past and made changes in SDM ended whit that. But now want to be proactive and anticipate the problems in my TCAM table.
If the my template is "default desktop" they support a number of indirect IPv4 routes of 2k. I wanna know automatically by my management tools if this number reaches 1.9k.
That way I can take corrective actions before the problems starts on my network.
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Mar 20, 2012
We have two c6509 budled in VSS. I have noticed randomly high usage of CPU, sometimes up to 99% in peaks. I have found that it can be generated by SNMP engine. So I unconfigure all SNMP things. But situation is the same. I would like to know if this state is OK or not. CPU shows are enclosed in file.
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Apr 18, 2013
We have a new stack of two Catalyst 3850-48T's running IOS XE 3.02.00 (we are upgrading to 3.02.01 this weekend.)We noticed the CPU usage is around 30% even when there is almost no traffic going through the switch. We haven't seen any indication that it is causing a problem, but is this considered a normal baseline?I attached my config (with passwords sanitized,) show ver, show controllers utilization, and show process cpu history.
I noticed this behavior is normal on 2900XL/3500XL switches, but I didn't find anything relating it to 3850 switches. Does the same thing apply to the 3850 switches? [code] url...
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Jun 25, 2012
I'm trying to install a Gateway in Red Hat Linux to Cisco Smart Call Home Service, and reading about this in google, i find this info:Smart Call Home on the ASA This is much more simply to configure and operate.I want to know what solution is more recomended and why.
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Jul 9, 2012
I have seen conflicting information regarding downtime for this upgrade process and still have questions after reading URL. In this scenario, we have a VSS with one SUP in each chassis.
Are the chassis or modules rebooted one at a time? For instance, if I issue an "issu loadversion", will this just load the code on the SUP in the standby chassis, or will it load the code on the modules as well? If it does load the code on the modules, then I will have to wait the longest time from the "show issue outage slot all" before issuing a "issu runversion", correct?
Also, what outage times have people seeen on modules that support pre-loading? I have not been able to find any documented information on this other than it is faster, and the link referenced above still shows a 5 minutes outage for a warm reset on one of the modules.
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Jan 14, 2013
We're having kind of a problem with our Catalyst 4507r switches. If we do a "show interface" command we're getting a lot of "Total output drops" on some of our interfaces. It seems to be most of the time on the same vlan.I was wondering if it has got something to do with QOS or queue selection As we don't have any QOS markings configured, is it possible that all traffic is using only one of the four tx queue's?
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Oct 30, 2012
How to control the speed and datausage for different users in wifi using java.
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Apr 25, 2013
I am on a call right now troubleshooting some latency issue. The CPU usage on the sup card is low. Don't see any drops or input errors. I am aware that the switch and its modules have capability limits. Is there command I can run which will tell me if any module is overloaded or if the fabric/backplane is over utilized?My chassis is WS-C6513 and sup card is WS-SUP720-3B.
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May 16, 2012
We had a core switch (4503), distribution switches and access in our network and consists of many vlans. Almost all vlans uses DHCP Pools. But for few vlans DHCP is not yet configured. Recently one of the rogue user in vlan 1 gave the corresponding interface vlan ip of core switch (gateway) as his ip and caused a prolonged network outage for the vlan. Any way we are going to seggregate vlan 1 into different vlans, but before that we need a temporary plan to block such kinds of attack.What are the possible ways we can avoid the network outage problem even if a user gave the gateway ip to the machine?
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Sep 25, 2012
I have Cisco 800 series (888w) with BRI-ISDN port. Is there any way to change the usage of ISDN port to normal RJ45 port?I want to use this SOHO router to sharing connection.
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Dec 1, 2011
I have a requirement to upgrade a a pair of active/passive FWSM's to get around a specific bug: the code is currently 3.1(1) and it's running in a 6509-e SUP-720-3B (12.2.(18)SFX8). In view of the available downloads the Safe Harbor logo seems to have been stripped away. I've already upgraded in a lab scenario with no issues to a 4.017 release. The questions are should I go for the release version 4.0 or the version 4.1 (and which code?) ? and why?
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Apr 17, 2012
I am running a home configuration where there are 2 PC's each using a different ISP. If one of those ISP's goes down, I would like both PC's to switch over to the working ISP.
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Feb 26, 2011
is PC health pack safe to use
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May 3, 2012
internet only work in safe mode?
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Sep 8, 2012
Logfile of Trend Micro HijackThis v2.0.4
Scan saved at 08:36:37, on 9/9/2012
Platform: Windows 7 SP1 (WinNT 6.00.3505)
MSIE: Internet Explorer v9.00 (9.00.8112.16448)
Boot mode: Normal
Running processes:
C:UsersOrePorAppDataLocalGoogleUpdateGoogleUpdate.exe
C:UsersOrePorAppDataRoamingDropboxinDropbox.exe
C:Program Files (x86)Common FilesJavaJava Updatejusched.exe
C:WindowsSysWOW64RunDll32.exe
C:UsersOrePorAppDataLocalGoogleChromeApplicationchrome.exe
[code]....
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Aug 29, 2012
My computer came with Mcaffe pre installed on the laptop however did not stop me getting the police e crime unit virus about three weeks ago. To fix this I booted in safe mode and did a system restore to around 3 months before I got the virus. I then installed avast antivirus and did a scan and boot scan which came back with nothing which suggested to me it had gone. This then meant I had both mcaffe and and avast running at the same time. Then until 3 weeks later the internet suddenly stopped working whilst I was on the internet. My laptop sees my router and says it is connected to it but says the router is not connected to the internet. This is false as every other device in the house can connect. However I then tried my computer in safe mode with networking and it can connect to the internet.
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Jan 17, 2011
I have uninstalled my norton,turned off my firewall....still only able to access internet in safe mode!
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Apr 2, 2011
I can only connect to the net in safe mode. I am wireless.What I have tried:
Scans: Scanned for virus using Microsoft Securty Essential, Malwarebytes and Spybot. There were viruses but they are cleaned now.
Router: I show I am connected to the router. I have unplugged and reset the router.
NIC: I have reset the NIC, shows NIC is working properly
Drivers: Most recent drivers
Firewall/Security: have shut down and tested the internet
CMD: can ping google and others
CMD: reset TCP/IP stack
and many others.
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May 26, 2011
For some reason when I switched on this evening wireless won't work and the screen appears to be in safe mode. I can connect using the cable but wireless seems to gone.
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Sep 8, 2012
I can only connect to the internet via IE9 in safemode with networking. This is my parents PC. As a side note I was able to connect in normal mode with Firefox V4 but accidentally updated to FF12 and now it won't work either. HJT log posted below. I've tried reseting and reinsatalling IE9, flushed the DNS, reset TCPIP. Still nothing.
[code]....
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Feb 7, 2013
My daughters laptop will not connect either wirelessly or via cable apart from in Safe mode with Networking. It has been working fine for over a year and she has not made any radical changes recently and all other devices in our house work and connect fine. I have run various checks including Malwarebytes and their root checker all comes back clean. It is finding the connections fine, just says No Internet access.It is a HP Pavilion g6 running Windows 7, the ipconfig /all is as follows?
Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.
C:>ipconfig /all
Windows IP Configuration
Host Name . . . . . . . . . . . . : Danielle-HP
Primary Dns Suffix . . . . . . . :
[code]....
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