Cisco WAN :: 6509E And Multicast Getting High CPU Usage

Jan 31, 2011

I've got a problem with a core 6509E and the multicast.A client has a system with cams for the physical security and they are connected to a vlan with this config:
 
interface VlanXip address 172.20.167.1 255.255.255.128ip helper-address 172.20.32.7ip pim version 1ip pim sparse-modeendThe thing is that we know that one server that shows the cams at the security office is flooding the network and the CPU CORE is over 95% always:
 
CPU utilization for five seconds: 99%/39%; one minute: 99%; five minutes: 99%
263   644650276 567873287       1135 51.99% 55.06% 55.35%   0 IP Input
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Cisco Switching/Routing :: 6509E-VSS High CPU Process Due To ARP Input

Feb 6, 2012

We are experiencing with high CPU input due to ARP input between 20:30 and 22:30 every day At this time we have a lot of backup operations. When I look the netflow report, I can't see anything anormal.
 
We are changing our backup server's NIC card from 1gig to 10Gig. The backup operation's traffic is high (approx 2Gbps level) but 6509 has to be handle this size of traffic.
 
We are using two 6509E in VSS mode and our image version is  s72033-adventerprisek9_wan-mz.122-33.SXJ.bin 
 
20:00
show ip arp summary
--------------
2588 IP ARP entries, with 166 of them incomplete

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Cisco :: High Throughput Usage On SVI

Jan 25, 2013

When a physical switchport/routed port has high usage, you can move the link to a higher capacity port, upgrade the port, bond links, etc. What exactly do you do when an SVI has high usage? I guess you could remove some servers from the VLAN, but that doesn't seem like a reasonable solution. What dictates the capacity of an SVI? The backplane of the switch?

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Cisco WAN :: 1841 High CPU Usage?

May 29, 2012

I have a 1841 router plugged into a 100M Comcast ethernet connection. My router cpu is really high and users download speed isn't as high as before. Can a 1841 handle 100M circuit with 100 users on it? What would cause the router's cpu to be high? I don't think there are any viruses or malware on the lan.
  
#sh proc cpu his
r2.leaguecity-toy-startoy   06:06:26 PM Wednesday May 30 2012 PST
111          1     1          1      111 24 1   1  1      1
400369232222544222330359645223283294332688334452308404382236

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Cisco WAN :: 7206 Npe G2 High CPU Usage

Mar 4, 2012

I have a lot of cisco 7206 vxr deviceses. I have a high cpu problem.I have a 7206 vxr g2. I used to use ebgp for three upstream carrier. I used to bgp full route table method. I have about 800 Mbps active traffics and behing the router about 1600 active customers.
 
How can I trouble shoot this high cpu problem?
 
#sh int gigabitEthernet 0/1
GigabitEthernet0/1 is up, line protocol is up
  Hardware is MV64460 Internal MAC, address is 000c.cf1d.d01b (bia 000c.cf1d.d01b)
  Description: ***** GW Interface *****
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Cisco WAN :: 1921 High CPU Usage

Jan 29, 2012

I have a Cisco 1921 router and it uses 99% of CPU and i cant seem to spot wich process that is taking up the cpu. I have an interface with several sub-interfaces and i am moving data between two of those subnets, i tried the "ip route-cache same-interface"-command on giga bit ethernet 0/1 with all the sub-interfaces like gigabitethernet 0/1.18 and so on. That did not work.

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DNS High Usage Of DoS Leaves

Mar 11, 2013

Received this notice from ISP. Does this make sense:We have noticed we are getting a huge number of queries from X.X.X.X and it is showing to be about 98% of the DNS traffic hitting our name servers. It appears that the data consists of reverse lookups to 10.1.0.0 network. It needs to be remediated as soon as possible because it could cause a service interruption.It almost seems as if my router is acting as a DNS server. The isp data consists of reverse lookups to 10.1.0.0 network which would be the internal.

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Cisco WAN :: High CPU Usage On 3560CG-8-PC Switch

Jul 12, 2012

I'm seeing very high CPU usage on my new 3560CG-8-PC switch. It's at 61%. How to chase down what's causing it?

I'm seeing a lot of rpf-fail drops. What causes them? How to prevent?

Supervisor TxQueue Drop Statistics
Queue  0: 0
Queue  1: 0

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Cisco WAN :: High CPU Usage On 6500 Switch

Jan 8, 2011

I am getting high cpu on 6500 swich running with SUP2 . Below is process cpu output .
 
****************** show proc cpu ******************
 CPU utilization for five seconds:  97.03%                      one minute:  97.08%                    five minutes:  97.02%
 
PID Runtime(ms) Invoked    uSecs    5Sec    1Min    5Min    TTY Process--- ----------- ---------- -------- ------- ------- ------- --- ---------------1   335581512   0          0          2.97%   2.92%   2.98% -2  Kernel and Idle2   6           128        1000       0.00%   0.00%   0.00% -2  Flash MIB Updat3   10468247    8763359    192000     0.98%   0.00%   0.00% -2  SynConfig      4   1694917     1210299    3000       0.57%   0.00%   0.00% -2  Statuspoll     5   341501      2798181    2000       0.19%   0.00%   0.00% -2 
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Cisco WAN :: 7600 High Processing Usage

Feb 8, 2012

I am having a customer suffering from a vairours RIP problems and i can see these loggs (what do they mean and what to do to aviod that?):
 
 RMS-PE3#show logg | i RIP                           
Feb  9 14:51:16: %SCHED-3-STUCKMTMR: Sleep with expired managed timer 56528110, time 0x6CBFD5EB5 (00:00:00 ago). -Process= "RIP Router", ipl= 5, pid= 480
.Feb  9 14:53:52: %SCHED-3-STUCKMTMR: Sleep with expired managed timer 4AE46A24, time 0x6CBFFC104 (00:00:00 ago). -Process= "RIP Router", ipl= 5, pid= 480
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Cisco :: High RAM Usage - Ironport S370

Aug 18, 2011

I have an Ironport S370 who is serving 30 users. The actual RAM usage is 78%, how should I check what processes are consuming the RAM?
 
I think this is the cause that the managemente console is much slower than some weeks before.

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Broadband :: Too High Internet Usage?

Sep 13, 2011

i keep getting messages from AVG saying they have detected a very high internet usage, first it was with google and then with firefox..they recommended to shut down and restart..anyone could explain what's going on? I'm not downloadin anything..just checking my mail!

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Mobile Broadband High Usage?

Jan 22, 2012

Recently got a mobile broadband dongle for my laptop, shows 7.2 Mbps speed in the status window and under activity the received bytes is shooting up, as I write this is has went from 25,000,000 to 35,000,000, that's about 10 mg for a few seconds, it does this even when I have no page open, I can't see anything in task manager, I don't know why it's downloading so fast when there's nothing there, also because of this it is slowing my browsing down,

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Cisco WAN :: 7600 High CPU Usage BGP Router Process

Mar 22, 2011

I have an issue with 7600 router where CPU goes up to 60-70% and memory is also high. Both due to BGP Router process. URL We are seeing this issue since ISP has upgraded their router 20 days ago. Router also seen following error.I have not reset the BGP session with ISP yet. Is there any way I can supress BGP updates coming from ISP and see if CPU and memory USAGE reduces. IOS version 12.2(33)SRD and RSP720 with PFC 3cXL

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Cisco Switching/Routing :: 4500 Cpu Usage Is Very High

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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Cisco WAN :: 7600 - High CPU Usage BGP Router Process

Sep 12, 2012

I have an issue with 7600 router where CPU goes up to 60-70% and memory is also high. Both due to BGP Router process. [URL] According to our baseline it should not be more than 40% at any given time. We see high CPU uptp 70% consistently.

CPU utilization for five seconds: 99%/0%; one minute: 57%; five minutes: 55%
PID Runtime(ms)   Invoked      uSecs   5Sec   1Min   5Min TTY Process
442    66173704  90234125        733 96.86% 46.09% 46.30%   0 BGP Router
7   509291060  26330202      19342  1.17%  3.90%  2.99%   0 Check heaps
 
Router has 1 eBGP session with ISP from where it downloads whole IPv4 internet routing table and two IBGP session with other two rotuer. When I look at BGP summary table I see many updates received from ISP and sent out to IBGP neighbors. Also did debug BGP updates to confirm it.
 
We are seeing this issue since ISP has upgraded their router 20 days ago. Router also seen following error.
 
%BGP-6-BIGCHUNK: Big chunk pool request 628 for community. Replenishing with malloc
 
I have not reset the BGP session with ISP yet. Is there any way I can supress BGP updates coming from ISP and see if CPU and memory USAGE reduces. IOS version 12.2(33)SRD and RSP720 with PFC 3cXL

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Cisco Infrastructure :: CAT 4510 - Showing High Cpu Usage (99.9%)

May 18, 2011

My CAT 4510 switch is showing 99.9% CPU usage almost through out the day. After some analysis i saw that the “Cat4k Mgmt LoPri” process is having 86% CPU utilization. This process is a package that is including multiple process.

Within this package, two processes have been identified which are causing this shock which are “K5L3Unicast Adj Tabl” and “K5 L2 Hardware Addre” .

This indicates that some heavy activity is going on CEF adjacency table and RP MAC Address Table. My current IOS version is 12.2(53)SG

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Cisco Switching/Routing :: High Cpu Usage With 7600

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
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Cisco Firewall :: ASA 5510 And 2960S - CSC SSM High CPU Usage

Jan 28, 2013

I have configured an ASA 5510 and 2960S 48 port switch in a lab environment. I have two laptops connected to seperate subinterfaces with server 2003 as dhcp server for one network. Everything has been working fine as we have been testing the ASA while also testing the csc smm module. When we came in today we noticed the csc module cpu is running at 100% constantly and http traffic is extremely slow. I have not yet received my smartnet contracts from the vendor or I would open a TAC case and I have read on the net that this is a common problem.

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Cisco Firewall :: ASA5520 High CPU Usage CTM Message Handler

Jan 20, 2013

I recently reboot my asa 5520, I was trying to remove webvpn listening from my outside nic, even though it wasn't configured. [code]I was planning to do another reload without the fast reload option.

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Cisco Firewall :: ASA 5505 8.2 (1) Is Rebooting After High Xlate Usage?

Feb 26, 2012

I have ASA that just started to reboot through out the day yesterday. It seems to happen every few hours but not in a pattern.Right before it reboots there is a flood of sys log id 305006 messages "portmap translation creation failed for tcp src inside:xxx dst outside:xxx the xlats go from around 2-3k to about 30+k then crash.Memory ussage is already pretty high normally on this device (about %75 used) CPU is around %15-20 I notice that the portmap translation errors are always from 3 inside host.

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Cisco Switching/Routing :: High CPU Usage On 3560 And 2960?

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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Cisco Switching/Routing :: High CPU Usage - 3750X Stack

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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Cisco Switching/Routing :: High CPU Usage On 3750X - IOS Version 15.0(2)SE

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

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Cisco Switching/Routing :: High CPU Usage In 3750X-24T-L Switch

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

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Cisco Switching/Routing :: C6K Randomly High CPU Usage C6509

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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Cisco Infrastructure :: High CPU Usage / Dropped Packets - Switch Blade WS-CBS3120X-S

Jun 25, 2012

I have a couple of Switches Blade 3120, working as active-standby model (HSRP) on a new site deployment. There are other 20 sites more or less, working on the same model, without issues. But in this one, we are seeing a high cpu usage. The traffic going through the platform is 600Mbps (on peaks), and in this case we have 40% of CPU usage. Traffic should be close to 3 Gbps. When we tried to send the whole traffic through the platform, active switch began to drop packets on the majority of interfaces.
 
When we analyze the CPU usage, there is a special process called "HL3U bkgrd proce" always have the most CPU use, but we do not know what concerns. We do not know if it is caused because there are PBRs configured. It should not matter. How I mentioned, there are other sites working fine and have had always the same PBR number.
 
What is causing the high usage?. Is there a special debug we could to perform to diagnose the issue?. Also, we have seen a high interrupt CPU usage (9% in this case).  
 
bog-sib-INT-rtr-1#show processes cpu sorted 5sec
CPU utilization for five seconds: 30%/9%; one minute: 25%; five minutes: 23%
PID Runtime(ms)     Invoked      uSecs   5Sec   1Min   5Min TTY Process

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TP-Link 300Mbps Wireless :: TL-WR841ND - LAN Freezes With High Bandwidth Usage

Jan 13, 2013

Region : Romania
Model : TL-WR841ND
Hardware Version :
Firmware Version : 3.13.27 Build 121101 Rel.38183n
ISP : cosmote

hardware version is WR841N v8.wireless works just fine. i use it for my smartphone and an old laptop. i use ethernet cable to connect to main computer where all is ok until i start using my bit torrent client. as soon as i build up traffic above 1MB the ethernet portion of the router freezes and needs a reboot. when frozen, wireless is still working and i still have access on the lan to the router via my browser. i got this router so i could have wifi for my phone. my old router (asus rx3041) worked just fine and i accessed my isp at the maximum speeds it would allow on a 60 gigabit connection.

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Cisco Firewall :: 5520 High Memory Usage And Error Creating Access Rules

Feb 13, 2013

I'm having a problem with the memory and also trying to create some rules on the CISCO ASA. The version that I got installed was the 8.2.5.33 on a CISCO 5520 with 512 RAM, the memory usage is on 99% used, 1% free and because of that when I'm trying to create a new rule the firewall brings me the next error..So what I did was a downgrade to the version 8.2 (4) 4 and the memory went down a little (82% used, 18% free) but I still got the error when I'm creating an access rule on the device. One thing and I'm not sure if this could affect on the performance are the number of access list and the object groups that are created.
 
I already open a case with CISCO TAC and they are checking if the problem is with the memory capacity or maybe a memory leak.Also the doubt that I got is with the memory that I got now available should I can create access rules or 82 is still to hig to create a rule or and object group?

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Linksys Wireless Router :: EA6500 - Identifying Devices Causing High Usage?

Mar 28, 2013

I'm thinking of purchasing a Cisco Linksys EA6500. I need a router that can one monitor bandwidth used by device. Keep exceeding our ISP's network bandwidth allocation, need to identify the devices that are causing this high usage and be able to do so from the router. Does the EA6500's standard software support this, is their router software one can obtain for the unit that does this or is there another home router option that can perform this function?

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Cisco Switching/Routing :: Cat6500 / IPTV Multicast Network Devices High CPU Utilization?

Jan 30, 2013

i have a campus network with 2 core Cat6500 and multiple 4500 series distribution switches plus 2960 series access switches,we have deployed IPTV system in the network but currently 50 TVs are working through sattelite stream from streaming server Cisco's DCM 9900.we are planning to add more  300 TVs in the network and i am wondering that when all of them will be deployed then what will happen for switches cpu utilizations when all the Tvs will be running on the same time with different different channels.

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TP-Link ADSL2+ Wireless :: TD-W8951ND Generating High Data Usage With No Devices Connected

May 3, 2013

Region : UnitedKingdom
Model : TD-W8951ND
Hardware Version : V5
Firmware Version : 22.05.2012
ISP :

I have a TD-W8951ND v5 on the latest firmware.

I recently broke my broadband data cap which surprised me as I had not been using the internet much.

I only have tablet which I switched off having first checked the router to make sure there were no other wireless connections and adding MAC address filtering to be sure no one else was stealing my bandwidth. With just my router connected to the ISP, my ISP has recorded 170MB of downloaded data in 3.5 hours. Switching off the router stops the traffic being recorded (as you would expect), but when switched back on the large data transfers start up again.

I have plugged in an older router (not wireless) and no traffic is generated, so it seems to be the TP-Link router rather than my ISP or ADSL circuit that is at fault.

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Cisco :: MP-BGP (and Not BGP) To Exchange Multicast Prefixes Between Multicast Domains?

Apr 18, 2012

Why do we need MP-BGP (and not BGP) to exchange multicast prefixes between multicast domains?

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