Cisco WAN :: CPU Utilization Hitting 100% On 2621XM?
Dec 26, 2011
I am not sure if the issue I have is due to router's performance of my configuration. Currently I have 2621XM connected in my internal network where Fa0/1 is considered untrusted zone and Fa0/0 is considered trusted. It appears that traffic is limited to about 3.17MBps (Mega Bytes) between Fa0/0 and Fa0/1. There are ACLs on the Fa0/1 inbound and Fa0/0 inbound. I am also using ip inspect rules for the Fa0/1 outbound traffic. When I remove ip inspect policy from the Fa0/1 interface, the traffic speed bumps up to about 4.8MBps (which is about 38Mbps - Mega bits).
Each time the CPU utilization is: CPU utilization for five seconds: 99%/99%; one minute: 19%; five minutes: 4% PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process
Access to the router during that time is veerrrryyyyyy slow! Does this mean I am hitting the maximum limit this router can handle?
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Sep 13, 2011
I am hitting the known bug CSCso59571 in CSM 3.3 and when I try to resolve the bug by entering the following command
pdreg -r Apache -e "NMSROOTMDCApacheApache.exe" -f "-d NMSROOTMDCApache -D SSL" -d TomcatMonitor
It says path NOT found, I tried entering "C:Progra~1CSCOpx", but still it doesn't work.
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Sep 23, 2012
I have a cisco asa 5520 and suddendley in my Network Monitor tool,(using SNMP) asa's DMZ interface traffic is showing arround 90000 Kbit/s .
i want to check which traffic is flowing throgh this interface.(Ip address details)
Note : There is no impact on asa CPU usage.
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Apr 15, 2012
We have a couple of switches with a L3 Vlan 238 interface which runs PIM SM and OSPF, and HSRP. We have connected to this same segment telemetry processors which have raw socket interfaces configured - which means it picks up all IP packets which hit the interface and forwards them along.So we dont want the processor to recevie any of the 224.x.x.x switch housekeeping traffic? is there anyway to prevent that ?
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Mar 10, 2013
i connected 2 routers 2621xm with serial and setup. but i didnt need the RIP cuz i just sent msg/packet from RT2/Laptop2 to RT1/Laptop1 and it saids SUCCESSFUL RECEIVED. so whats wrong with my 2 networks?why passed through from rt2 to rt1 without RIP configuration?
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May 5, 2012
I have "ESPRIMO Mobile V6555" Laptop, running Windows XP SP3, with which the wireless network adapter worked fine before. Now, after I bought a new router (TBLink) my laptop cannot access internet through this router wirless netowrk, and cannot even make ping command to the router address.I tried many things to work around this problem: reinstall the driver of Wireless adapter, change the connection setting on both router and computer, cleaning ARP Cash ...etc.
1) the router works fine for other wireless devices like my HTC widows mobile phone and other laptop running Windows 7.
2) When I assign a static IP for my laptop it can connect to the network but still could not make the ping command to the router or reach any network resources.
3) I have Bitdefender Internet Security running and up to date.
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Feb 21, 2012
I ended up with an RMA for a new E4200 ver. 1 and the problem I have still persists. My 2 GHZ WAP gets 65Mbp/s to its connected devices. However, the 5.4 GHZ WAP gets 48 to 54 Mbp/s only.My laptops have Windows 7 and Ubuntu. The WiFi cards are Intel Centrino Advanced-N 6200 and 6230. Both fluctuate at 48 - 54Mb/s on the the 5.4GHZ channel.
If I put it on Wireless-N only, the laptops cannot connect. I have tried AUTO detection for mhz and channels. I have tried 40mhz with channels 149 and 161 with no difference.Currently, I am operating both WAPs on different SSIDs to make sure my results are separate.Security for both WAPs is WPA2-Personal with a 10 digit sequence.
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Nov 27, 2011
I've got a 2621XM that has not been used for a while.Completely stripped of any modules and configuration files, the router will continually cycle the startup process without actually booting from the IOS.
The cycle displays the following :
System Bootstrap, Version 12.2(8r) [cmong 8r], RELEASE SOFTWARE (fc1)
Copyright (c) 2003 by cisco Systems, Inc.
program load complete, entry point: 0x80008000, size: 0x10034ec
What I've tried:
1) Downloading another IOS image (c2600-is-mz.123-20.bin) via Xmodem and running "confreg 0x2102" from the rommon. All that did is change the last message to "program load complete, entry point: 0x80008000, size: 0x10fa95c"
2) Running the command "boot flash:c2600-is-mz.123-20.bin". If I enable the diagnostics via rommon, the cycle expands to:
System Bootstrap, Version 12.2(8r) [cmong 8r], RELEASE SOFTWARE (fc1)
Copyright (c) 2003 by cisco Systems, Inc.
program load complete, entry point: 0x80008000, size: 0x10fa95c
Testing lower main memory - data equals address
Testing lower main memory - checkerboard
[code]....
If it wasn't for the lack of error messages, I would assume it was a hardware issue.If the image was corrupted, I would expect a message indicating that the image couldn't be read.
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Jun 18, 2011
I'm trying to login to my cisco 2621XM router. I'm using putty and I can't remember the how to cable it or the settings to use in putty. I don't have a db9 input on my pc, so I need to go through my NIC. What type of cable to use, what port to plug it into on the router, and what settings to use in Putty.
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Dec 15, 2010
I have a Cisco 2621XM router with two ethernet interfaces that sits before a vendor supplied VPN router. I need to see the IP traffic incoming to my router from the WAN side (fasteth0/1 below). I setup ip cef, and ip flow ingress on the interface. However -- it seems that what I see when I use "ip cache flow" command doesn't have a very long history or life. What commands am I missing so that I can see a summary of the stats over say the last 5, 10 or 15 minutes? Is this the best config that can be used for this, or can I create a more summarized report just using the router HW and IOS? Basic current configuration:version 12.3service timestamps debug uptimeservice timestamps log uptimeservice password-encryption!hostname Littleboy!ip subnet-zeroip cef table event-log size 1024ip cefip cef accounting per-prefix non-recursive prefix-lengthip cef traffic-statistics load-interval 180!ip flow-cache entries 2048ip flow-cache timeout inactive 60!interface FastEthernet0/1 description Littleboy to vpn-wan ip address 10.1.0.1 255.255.255.252 ip flow ingress?
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Sep 10, 2012
How to setup dynamic dns for Cisco 2621xm ? What IOS support Dynamic Dns?
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Nov 6, 2011
will the AIM-COMPR2-V2 will work with the 2621xm
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Jun 16, 2012
I have an old 2621xm router in CCIE lab at home. Only a week ago I started having issue on 2 of them. The problem is on one of them when I go under interface configuration and I type "no shut" nothing happens. Interface stays in administratively down status and when I check running config "shutdown" is still under interface.
On the other one the same problem but only with "router rip" command. I configure my rip routing but then when I check running config there is no rip section and also RIP is not running under "show ip protocols rip".These routers are connected to 2511 AccesServer. So I thought the issue might be communication from AccessServer to these devices. I connected a console cable straight to them and still the same problem. Everything else is working on these devices.
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Jan 27, 2013
I have a 2621XM router that I know has reached its end of life. However, would I be able to download the 802.1q VLAN encapsulation for it? If I can, how do I go about doing it.
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Sep 29, 2011
I am using packet tracer 5.3 version and I am trying to configure IGRP on it but it doesn't show me igrp under routing protocol selection.Router number is 2621XM.IOS version is 12.2.learn the configuration of IGRP.
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Jan 10, 2013
We have 2 router cisco 2621XM and want to configure a VPN between them, but first we want to configure ADSL in both with the card installed.
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Jan 14, 2013
I am trying to recover a corrupted ios, from rommon after configure all steps of IP_ADDRESS, TFTP_SERVER and so on, copy files correctly, but after it need router 5 minutes to erase flash, or something else....after it i can not boot from ios loaded as i show below:
!!!!!!!!!!!!!!!!!!!!!!
File reception completed.
Copying file /c2600-advsecurityk9-mz.123-11.YZ2.bin to flash.
Erasing flash at 0x61fc0000
program flash location 0x60ea0000
[code].....
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May 20, 2012
I'm having with my VPN Server on my Cisco 2621xm.
I started by creating a VPN - everything worked great. I assigned the DNS Servers, Domain name, WINS Server so when I connect I'm able to resolve local hostnames on the network with no problem, however, I had no internet access... I then set up a split tunnel access list. Since I've set that up, I'm now able to ping internet based addresses url... but no longer able to resolve internal host names. I can ping the ip addresses, just name resolution no longer works. [code]
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Aug 13, 2012
Got an ASA5505 connected to another endpoint running IPsec and being NAT'd at each end to a 10.0.0.0/24 network. I can pass other types of traffic through the ASA 5505 but not RTP traffic. The moment it is NAT'd and hits the firewall rules it gets denied by the default deny at the bottom of the list.
Currently the rules are as follows
Incoming External
allow ip any any
allow tcp any any
allow udp any any
default deny
[code].....
It wont allow us to setup a voip call...however when the same call manager sets up a voip call NOT using this ipsec tunnel it works just fine.
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Aug 14, 2012
Got an ASA5505 connected to another endpoint running IPsec and being NAT'd at each end to a 10.0.0.0/24 network. I can pass other types of traffic through the ASA 5505 but not RTP traffic. The moment it is NAT'd and hits the firewall rules it gets denied by the default deny at the bottom of the list.
Currently the rules are as follows
Incoming External
allow ip any any
allow tcp any any
allow udp any any
default deny
[code]....
It wont allow us to setup a voip call...however when the same call manager sets up a voip call NOT using this ipsec tunnel it works just fine.
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Sep 7, 2011
I haven't covered this bit in my CCDA studies (yet) but I was thinking, what do people consider too much CPU utilization for:-
A) A switch during normal working hours? (Layer 2 Switch)
B) A Router during normal working hours?
I was thinking a normal level for a switch would be at max 10% and I would get worried at 50-60% if this lasted for several minutes at a time.For a Router I would expect higher utilization in general so I would think up to about 25% during normal usage and at worst case a prolonged period the same as the switch.This isn't something I see discussed very often, except maybe by me when a router goes mental and maxes out at 100%.
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Dec 4, 2010
I have a Cisco 7506 end cpu utilization from my VIP 0 is going to 100%. The biggest traffic from my interface is aroud 100 Mbps and my bandwdth is 1000Mbps. Who know what could happend?
64556445650707820870990195455665559401024909987026556445558100 * 90 * 80 * * 70 * * 60 * * 50 * * 40 **** * 30 ******#* * 20 #######** * 10 * *** ******************* **********##########****** **** 0....5....1....1....2....2....3....3....4....4....5....5....6....6....7. 0 5 0 5 0 5 0 5 0 5 0 5 0 CPU% per hour (last 72 hours) * = maximum CPU% # = average CPU%
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Jun 7, 2012
We have CPU reports set to run daily for some of our higher priority switches, and we've noticed that some of the data isn't meshing with what we see on the switch. We have one heavily utilized switch that reports near 100% CPU utilization sometimes. I can do a "show proc cpu history" on that switch and see that at least once an hour over 72 hours, we'll see a near 100% CPU utilization.
The problem is that these spikes never appeare on any of our reports. We'd like to see this info because even if the switch spikes for just a few seconds or a minute, it could still indicate that we may have issues. Without that in the report, we may never realize there could be a problem.
Is there a way for this info to show in the report? I'm under the impression that if LMS polls the switch and doesn't see a high utilization average, then maybe it doesnt' enter that in the report. I guess I'd just like to know how often it pulls this data, and how it decides wath the Min, Max, and Averages are.
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Nov 28, 2011
how do i know someone is connected to my wireless
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Mar 28, 2013
We are currently running ACS 5.4.0.46.0a in a VMWare environement. We have 1 Primary and 1 Secondary running on our ESXi 5.0 cluster at our HQ and 1 secondary running on a standalone ESXi 5.0 at our DR site. All three instances were created at the same time and configure identical. The only difference being the physical box they are running from and that the secondary running on the ESXi cluster is the log collector. We are in the process of migrating from ACS 4.2 and only have 3 systems that authenticate to the new ACS 5.4 servers. Those systems are hardly ever used so there may be only 1 or 2 authenticates a day.
My concern is that the primary is running at around 30% cpu utilization constantly, and the secondaries are running at around 1%. Why the primary would be running the cpu that high when it should be pretty much idle most of the time? Or, how can I find out what process is running the cpu that high ?
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Sep 27, 2011
We have configured 20 route in ASA 5520. The CPU usage goes to 100 % at the moment when we add a specific route.route inside 10.254.101.0 255. 255. 255.0 10.254.102.254 1.This is the same case when we add this route at the first cli or as the 10th cli or the 21 cli (errespective of the position of cli) There is an another route out of which 20 routes we have configured is route inside 10.254.103.0 255.255.255.0 10.254.102.254 1.The normal case if we dont add the problamatic route , then the CPU utilization is only 2 %.
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Apr 26, 2011
I have 3845 router where 200 branches are connect. Ho have database server where branch are synch interval period.some of days observation cpu load average 70 % and sometimes it reaches 100 %.yesterday when I give command clear arp then instant cpu load reduce and 20 % yesterday cpu load 12-20 %. Today morning when I give command Cpu proc history then I found cpu load 60 % and at night it was 3 times reaches 100 %. so my question is after clear arp command at least 10 hours cpu utilization 20 % but after that it increase.so for any LAN broadcast it happend ? how i understand cpu high for Broadcasting or anything else.
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Oct 12, 2011
What causes LMS 4.1 to have high memory utilization?
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Sep 28, 2012
Our Router 7606 is in a problem with high CPU Utilization. We are using one EBGP and one IBGP session. We are also running OSPF with area 0 between two IBGP router to exchange few local networks. When bandwidth cross 100 MB than only CPU use become 100%. when bandwidth consumption is 80MB CPU use become 80% end so on.
Out put is when bandwidth consumption is 34MB
CPU utilization for five seconds: 44%/43%; one minute: 42%; five minutes: 30%
PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process
78 44 9625 4 0.39% 0.03% 0.00% 2 Virtual Exec
13 40 375 106 0.07% 0.00% 0.00% 0 ARP Input
30 116 1098 105 0.07% 0.01% 0.00% 0 IPC Seat Manager
[code]....
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Aug 10, 2011
I have a hight CPU utilisation problem in my CISCO7609-S routers. the cpu utilisation can rise 99% et this is usually. In the moment of hight CPU the the process CPU give the following:
the show processe cpu history give: show version
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Apr 29, 2013
I have a 2811 that is really hitting the CPU hard. Nothing shows on CPU processes. It has an IPsec VPN tunnel back to HQ which also has a 2811 that terminates the VPN. The HQ has 2-3 IPsec tunnels to other remote sites. The CPU at the HQ avg 50% utilization during business hrs, peaks at about 80%. The remote one is very high 95% peaks, avg 80%-95% during business hours with bandwidth utilization of only 10-20Mbps. I read somewhere that its possible that fragmentation could be causing this. My question is, if I set the MTU to 1450 on the remote, I am guessing I will need to do all the other routers as well, the HQ and other remote sites? Siince they use the same outside interface to my HQ, is that correct?
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Jun 23, 2011
We have Cisco 2811 router and facing high CPU utilisation as 70%/67%;,IOS Runing :c2800nm-advsecurityk9-mz.124-3f.bin.
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Jan 7, 2013
High cpu utilization on cisco 7206 vxr router.[code]
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