High cpu with dhcp snooping

Hi all,
I am using 2950T and have configured dhcp snooping with this config:
conf t
ip dhcp snooping
ip dhcp snooping vlan 416
int range fa0/1 - 24
ip dhcp snooping limit rate 50
int gig0/1 (Uplink)
ip dhcp snooping trust
int gig0/2
ip dhcp snooping trust (uplink)
After this the 2950 goes up to 80% cpu, and is barely accessible.
Have i done something wrong, or will the cpu return to 20%?
//Robert Pettersson
senior network engineer, WetterNet

Well,
In Cisco Bug Toolkit there are couple of articles which looks similar to yours.
The first thing to check now is the option-82. It is enabled by default so would be interesting to see what's happen if you disable it.
Otherwise it would be better if you can open case at Cisco because it could be that your problem depends on some other features enabled on the switch.
//Mikhail Galiulin

Similar Messages

High CPU with AFP & SMB

I have setup a 2.3DP XServer running Tiger/1047 and it seems to be working fine. This is a stand alone box with accounts imported from our main 2.0 SP XServer running Panther/1039 (both are stand alone). Most of these accounts were taken from a 10.1.5 server (without any issues).
For some odd reason, I am seeing extremely high CPU utilization for the users connection. Sometimes one users will cause AFP (root) to run at upwards of 90% CPU (using all of one CPU). SMB is similar - we have one remote user connecting this way.
The Tiger server went into production (pre-production at this point) as 10.4.7 and has only been rebooted once (which is really too much, but I digress). I have stoped and started AFP, but its still going crazy hogging the CPU. I have not seen anything like this on our 10.3.9 box (even when it was 10.3.7).
The Tiger box has the following services running:
AFP
Software Update (but not functioning yet ...)
Web
Windows (SMB)
The only other things that come to mind is one of the shares (there are only 3) is self mounted on the servers desktop over "SMB" (though I'm told its not exactly like mounting a remote SMB volume).
The system have the PCI video card (Radeon) but is not running with monitor ...
and I'm am showing the following errors
Aug 31 03:43:14 4ql5d91 servermgrd: servermgr_dns: no reverse DNS entry for server, various services may not function properly
Aug 31 04:13:14 4ql5d91 servermgrd: servermgr_dns: more than one name for the primary IP address, unable to pick one
we have the DNS setup for two domains ... also the random promp "4ql5d91" is annoying (I've seen this in OS X client frequently, but have not shown it to cause any problem).
Any ideas as to how to resolve the performance issue?
thx

I have setup a 2.3DP XServer running Tiger/1047 and it seems to be working fine. This is a stand alone box with accounts imported from our main 2.0 SP XServer running Panther/1039 (both are stand alone). Most of these accounts were taken from a 10.1.5 server (without any issues).
For some odd reason, I am seeing extremely high CPU utilization for the users connection. Sometimes one users will cause AFP (root) to run at upwards of 90% CPU (using all of one CPU). SMB is similar - we have one remote user connecting this way.
The Tiger server went into production (pre-production at this point) as 10.4.7 and has only been rebooted once (which is really too much, but I digress). I have stoped and started AFP, but its still going crazy hogging the CPU. I have not seen anything like this on our 10.3.9 box (even when it was 10.3.7).
The Tiger box has the following services running:
AFP
Software Update (but not functioning yet ...)
Web
Windows (SMB)
The only other things that come to mind is one of the shares (there are only 3) is self mounted on the servers desktop over "SMB" (though I'm told its not exactly like mounting a remote SMB volume).
The system have the PCI video card (Radeon) but is not running with monitor ...
and I'm am showing the following errors
Aug 31 03:43:14 4ql5d91 servermgrd: servermgr_dns: no reverse DNS entry for server, various services may not function properly
Aug 31 04:13:14 4ql5d91 servermgrd: servermgr_dns: more than one name for the primary IP address, unable to pick one
we have the DNS setup for two domains ... also the random promp "4ql5d91" is annoying (I've seen this in OS X client frequently, but have not shown it to cause any problem).
Any ideas as to how to resolve the performance issue?
thx

FPEnumerateExt2 and high CPU with Network Homes

Hi there, since 10.4 we are fighting against high cpu-load on our network home servers. With 10.4 the problem was delayed_ack which seems to be fixed in 10.5 server. But in Mac OS X 10.5 server the high cpu load isn't gone. Here it seems that FPEnumerateExt2 in the AFP communication is the problem. We extracted this in several network traces. FPEnumerateExt2 is an AFP command to get contents of a directory. The command is sent with a volume id and a directory id (which you can see with ls -li in terminal). The strange part is if we look deeper in this communication. We found that most of the FPEnumerateExt2-commands are sent twice. The first FPEnumerateExt2 is sent and one or two packets later there is a reply with the desired information. But then the FPEnumerateExt2 is sent again to the same volume id and the same directory id and the reply is "Object not found". The directories which FPEnumerateExt2 is asking for are NO tmp files or so which may change. Does anyone know why this is happening? Thanks for help!

I had the same issue on a 2008 R2 terminal server,, so much research I put into it and not a lot of consistent help on this issue. I finally ran a
winmgmt.exe /resetrepository to start the sync over and CPU dropped to normal function.
I have been monitoring it all day and it seems fine, If it comes back I'll set the damn thing on a batch and schedule haha.
Deselo

CSS11800 - High CPU with Sticky and L3 rule

I have a customer who wants to maintain sticky between TCP80 and TCP443, so we selected a L3 content rule.
content L3_www.ourcustomer.com
vip address 1.2.3.4
sticky-mask 255.255.128.0
add service web004
add service web005
add service web006
sticky-inact-timeout 10
advanced-balance sticky-srcip
active
The problem I see is that without a low inactivity timeout the CPU goes through the roof to 100%. Even with 10 minute inactivity timer it rockets to 60-80% CPU, but at least it isn't locked at 100% (which causes latency and other problems).
The customer is pushing 12Mbps with on average 5-10K connections. No sticky rejects or collisions and plenty of FCBs available. At any time the average number of used sticky entries is 8-10K.
I can make the CPU immediately drop like a rock to 1-10% by simply purging the sticky table or by removing sticky from the content rule. As a result I am confident the issue appears to be sticky related. I didn't find any bugs opened on this issue tho. We run sticky for quite a few customers and have rarely, if ever, seen anything like this before.
I did some testing in production and experienced this high CPU problem with 4.01.44.s, 5.01.69s and 6.10.405 and saw it on a CSS11150 before I moved the customer to a CSS11800 where we experience the same exact issue.
I have dozens of CSS11150s, CSS11800s, and a few CSS11500 series in production but never experienced this on any version of code before.
Has anyone seen this before? Due to "shopping cart" issues we need to maintain persistence between 80->443 transitions so I think I am stuck with sticky and a L3 rule.
Any thoughts would be most appreciated.
Thanks!
Mike

I have also not seen an issue like this. Have you tried with changing the sticky inactivity timeout and did that help. You could find more information on how the entries are removed in the following document.
http://www.cisco.com/en/US/products/hw/contnetw/ps789/products_tech_note09186a0080094b4b.shtml

High CPU with low loaded cluster

We have four nodes in our cluster and from time to time notice severely decreased performance. The servers show high CPU usage, but when I take thread dumps, there is not a lot of user activity. There are, however, many threads similar to the following:
"[ACTIVE] ExecuteThread: '13' for queue: 'weblogic.kernel.Default (self-tuning)'" daemon prio=3 tid=0x04cf4800 nid=0x223 waiting on condition [0x7347f000..0x7347fb70]
java.lang.Thread.State: TIMED_WAITING (parking)
     at sun.misc.Unsafe.park(Native Method)
     - parking to wait for <0xc5738a70> (a java.util.concurrent.locks.ReentrantLock$FairSync)
     at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:198)
     at java.util.concurrent.locks.AbstractQueuedSynchronizer.doAcquireNanos(AbstractQueuedSynchronizer.java:841)
     at java.util.concurrent.locks.AbstractQueuedSynchronizer.tryAcquireNanos(AbstractQueuedSynchronizer.java:1160)
     at java.util.concurrent.locks.ReentrantLock.tryLock(ReentrantLock.java:416)
     at weblogic.cluster.messaging.internal.GroupMemberImpl.acquireLock(GroupMemberImpl.java:172)
     at weblogic.cluster.messaging.internal.GroupMemberImpl.addConnection(GroupMemberImpl.java:143)
     at weblogic.cluster.messaging.internal.GroupManagerImpl.handleMessage(GroupManagerImpl.java:169)
     at weblogic.cluster.messaging.internal.ConnectionImpl$1.run(ConnectionImpl.java:116)
     at weblogic.work.SelfTuningWorkManagerImpl$WorkAdapterImpl.run(SelfTuningWorkManagerImpl.java:516)
     at weblogic.work.ExecuteThread.execute(ExecuteThread.java:201)
     at weblogic.work.ExecuteThread.run(ExecuteThread.java:173)
It seems to me there might be an issue with WebLogic clustering, but I can't find any information about this particular stacktrace anywhere. Has anyone else seen any issues similar to this? We're running WebLogic 10.3 with Sun JDK 1.6.0_05 on Solaris 10.

Are you using UNICAST Cluster? If yes please add -Dweblogic.unicast.HttpPing=true parameter to your Managed servers instances in Cluster, restart the cluster members and see if that resolves the issue.
Hope this helps.
- Tarun
Edited by: Tarun Boyella on Feb 1, 2011 7:04 PM

High CPU with error "%ADJ-3-RESOLVE_REQ:" in Catalyst 4500-X VSS after making L3 function (static routing)

We have a VSS based on 2x WS-C4500X-16., The VSS is used as Layer 2 Switch for diffrents Vlan in our DC.
After making the VSS as a Layer 3 gateway for our production VLAN and added 2 routes for routing purposes, we encountered a network down time with high CPU in the VSS and a huges log messages :
.May 14 12:11:25.947: %ADJ-3-RESOLVE_REQ: Adj resolve request: Failed to resolve 10.2.7.22 Vlan100
.May 14 12:11:34.516: %ADJ-3-RESOLVE_REQ: Adj resolve request: Failed to resolve 10.2.7.22 Vlan100
.May 14 12:11:40.072: %ADJ-3-RESOLVE_REQ: Adj resolve request: Failed to resolve 10.1.1.254 Vlan100
.May 14 12:11:49.682: %ADJ-3-RESOLVE_REQ: Adj resolve request: Failed to resolve 10.2.1.253 Vlan100
.May 14 12:11:55.079: %ADJ-3-RESOLVE_REQ: Adj resolve request: Failed to resolve 10.1.1.254 Vlan100
.May 14 12:12:00.926: %ADJ-3-RESOLVE_REQ: Adj resolve request: Failed to resolve 10.2.7.40 Vlan100
.May 14 12:12:06.701: %ADJ-3-RESOLVE_REQ: Adj resolve request: Failed to resolve 10.2.8.32 Vlan100
.May 14 12:12:12.624: %ADJ-3-RESOLVE_REQ: Adj resolve request: Failed to resolve 10.2.7.40 Vlan100
.May 14 12:12:21.627: %ADJ-3-RESOLVE_REQ: Adj resolve request: Failed to resolve 10.2.7.40 Vlan100
.May 14 12:12:32.261: %ADJ-3-RESOLVE_REQ: Adj resolve request: Failed to resolve 10.2.8.32 Vlan100
.May 14 12:12:41.801: %ADJ-3-RESOLVE_REQ: Adj resolve request: Failed to resolve 10.2.2.105 Vlan100
.May 14 12:12:49.633: %ADJ-3-RESOLVE_REQ: Adj resolve request: Failed to resolve 10.2.1.253 Vlan100
.May 14 12:12:54.831: %ADJ-3-RESOLVE_REQ: Adj resolve request: Failed to resolve 10.1.1.254 Vlan100
.May 14 12:12:59.960: %ADJ-3-RESOLVE_REQ: Adj resolve request: Failed to resolve 10.1.1.254 Vlan100
.May 14 12:13:08.745: %ADJ-3-RESOLVE_REQ: Adj resolve request: Failed to resolve 10.2.1.253 Vlan100
.May 14 12:13:16.138: %ADJ-3-RESOLVE_REQ: Adj resolve request: Failed to resolve 10.2.1.253 Vlan100
.May 14 12:13:22.393: %ADJ-3-RESOLVE_REQ: Adj resolve request: Failed to resolve 10.2.1.253 Vlan100
.May 14 12:13:31.415: %ADJ-3-RESOLVE_REQ: Adj resolve request: Failed to resolve 10.2.1.141 Vlan100
.May 14 12:13:38.944: %ADJ-3-RESOLVE_REQ: Adj resolve request: Failed to resolve 10.2.2.215 Vlan100
.May 14 12:13:45.972: %ADJ-3-RESOLVE_REQ: Adj resolve request: Failed to resolve 10.2.1.253 Vlan100
Bellow are the show version of our VSS,
Cisco IOS Software, IOS-XE Software, Catalyst 4500 L3 Switch Software (cat4500e-UNIVERSALK9-M), Version 03.04.00.SG RELEASE SOFTWARE (fc3)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2012 by Cisco Systems, Inc.
Compiled Wed 05-Dec-12 04:38 by prod_rel_team
ROM: 15.0(1r)SG10
S_C4500X_01 uptime is 33 weeks, 1 day, 14 minutes
Uptime for this control processor is 33 weeks, 1 day, 16 minutes
System returned to ROM by power-on
System restarted at 11:59:10 UTC Tue Sep 24 2013
Running default software
Jawa Revision 2, Winter Revision 0x0.0x40
Last reload reason: power-on
License Information for 'WS-C4500X-16'
License Level: ipbase Type: Permanent
Next reboot license Level: ipbase
cisco WS-C4500X-16 (MPC8572) processor (revision 9) with 4194304K/20480K bytes of memory.
Processor board ID JAE173303CF
MPC8572 CPU at 1.5GHz, Cisco Catalyst 4500X
Last reset from PowerUp
4 Virtual Ethernet interfaces
32 Ten Gigabit Ethernet interfaces
511K bytes of non-volatile configuration memory.
Configuration register is 0x2101
Can you help please,

Hi,
thanks for your reply, but there is no hsrp configured, just an interface vlan. with 2 static routes and the problem was there for more than an hour before we decided to rollback.
Is there a BugId with this problem in Cisco DataBase.
here is a show ip route
S_C4500X_01# show ip route
Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP
+ - replicated route, % - next hop override
Gateway of last resort is 10.2.1.253 to network 0.0.0.0
S* 0.0.0.0/0 [1/0] via 10.2.1.253
10.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
C 10.0.0.0/8 is directly connected, Vlan100
L 10.1.1.250/32 is directly connected, Vlan100
172.31.0.0/16 is variably subnetted, 2 subnets, 2 masks
C 172.31.0.0/16 is directly connected, Vlan120
L 172.31.0.1/32 is directly connected, Vlan120
S 192.1.0.0/16 [1/0] via 10.1.1.254
and the show ip cef:
_C4500X_01# show ip cef
.May 14 12:13:57.859: %ADJ-3-RESOLVE_REQ: Adj resolve request: Failed to resolve 10.2.1.158 Vlan100 f
Prefix Next Hop Interface
0.0.0.0/0 10.2.1.253 Vlan100
0.0.0.0/8 drop
0.0.0.0/32 receive
10.0.0.0/8 attached Vlan100
10.0.0.0/32 receive Vlan100
10.1.1.6/32 attached Vlan100
10.1.1.17/32 attached Vlan100
10.1.1.40/32 attached Vlan100
10.1.1.41/32 attached Vlan100
10.1.1.50/32 attached Vlan100
10.1.1.60/32 attached Vlan100
10.1.1.99/32 attached Vlan100
10.1.1.121/32 attached Vlan100
10.1.1.122/32 attached Vlan100
10.1.1.124/32 attached Vlan100
10.1.1.125/32 attached Vlan100
10.1.1.126/32 attached Vlan100
10.1.1.225/32 attached Vlan100
10.1.1.227/32 attached Vlan100
10.1.1.250/32 receive Vlan100
10.1.1.254/32 10.1.1.254 Vlan100
10.2.1.3/32 attached Vlan100
10.2.1.4/32 attached Vlan100
10.2.1.6/32 attached Vlan100
10.2.1.8/32 attached Vlan100
10.2.1.9/32 attached Vlan100
10.2.1.18/32 attached Vlan100
10.2.1.23/32 attached Vlan100
10.2.1.24/32 attached Vlan100
Prefix Next Hop Interface
10.2.1.26/32 attached Vlan100
10.2.1.28/32 attached Vlan100
10.2.1.29/32 attached Vlan100
10.2.1.31/32 attached Vlan100
10.2.1.103/32 attached Vlan100
10.2.1.108/32 attached Vlan100
10.2.1.109/32 attached Vlan100
10.2.1.124/32 attached Vlan100
10.2.1.129/32 attached Vlan100
10.2.1.137/32 attached Vlan100
10.2.1.139/32 attached Vlan100
10.2.1.143/32 attached Vlan100
10.2.1.144/32 attached Vlan100
10.2.1.159/32 attached Vlan100
10.2.1.167/32 attached Vlan100
10.2.1.174/32 attached Vlan100
10.2.1.175/32 attached Vlan100
10.2.1.176/32 attached Vlan100
10.2.1.181/32 attached Vlan100
10.2.4.38/32 attached Vlan100
10.2.4.39/32 attached Vlan100
10.2.4.43/32 attached Vlan100
10.2.4.47/32 attached Vlan100
10.2.4.51/32 attached Vlan100
10.2.4.63/32 attached Vlan100
10.2.4.65/32 attached Vlan100
10.2.4.69/32 attached Vlan100
10.2.4.71/32 attached Vlan100
10.2.4.73/32 attached Vlan100
10.2.4.102/32 attached Vlan100
10.2.4.106/32 attached Vlan100
10.2.4.107/32 attached Vlan100
10.2.4.113/32 attached Vlan100
10.2.4.116/32 attached Vlan100
10.2.4.119/32 attached Vlan100
10.2.4.120/32 attached Vlan100
10.2.4.122/32 attached Vlan100
10.2.4.141/32 attached Vlan100
10.2.4.148/32 attached Vlan100
10.2.6.7/32 attached Vlan100
Prefix Next Hop Interface
10.2.6.16/32 attached Vlan100
10.2.6.31/32 attached Vlan100
10.2.7.14/32 attached Vlan100
10.2.7.22/32 attached Vlan100
10.2.7.24/32 attached Vlan100
10.2.7.34/32 attached Vlan100
10.2.7.37/32 attached Vlan100
10.2.7.41/32 attached Vlan100
10.2.7.48/32 attached Vlan100
10.2.8.18/32 attached Vlan100
10.2.8.32/32 attached Vlan100
10.2.8.59/32 attached Vlan100
10.2.8.70/32 attached Vlan100
10.2.8.85/32 attached Vlan100
10.2.8.88/32 attached Vlan100
10.2.8.104/32 attached Vlan100
10.2.8.135/32 attached Vlan100
10.2.99.10/32 attached Vlan100
10.2.99.54/32 attached Vlan100
10.255.255.255/32 receive Vlan100
127.0.0.0/8 drop
172.31.0.0/16 attached Vlan120
172.31.0.0/32 receive Vlan120
172.31.0.1/32 receive Vlan120
172.31.0.5/32 attached Vlan120
172.31.0.29/32 attached Vlan120
172.31.255.255/32 receive Vlan120
192.1.0.0/16 10.1.1.254 Vlan100
224.0.0.0/4 drop
224.0.0.0/24 receive
Prefix Next Hop Interface
240.0.0.0/4 drop
and show ip arp
Protocol Address Age (min) Hardware Addr Type Interface
Internet 10.1.1.1 0 aa00.0400.c286 ARPA Vlan100
Internet 10.1.1.6 0 0050.5689.24b8 ARPA Vlan100
Internet 10.1.1.10 0 0050.5694.7d20 ARPA Vlan100
Internet 10.1.1.11 0 0050.5694.7d20 ARPA Vlan100
Internet 10.1.1.12 0 0050.5694.6ae7 ARPA Vlan100
Internet 10.1.1.13 0 0050.5694.6ae7 ARPA Vlan100
Internet 10.1.1.14 0 0050.568a.6321 ARPA Vlan100
Internet 10.1.1.16 0 0050.5694.0ab5 ARPA Vlan100
Internet 10.1.1.17 0 0050.5694.493d ARPA Vlan100
Internet 10.1.1.40 0 0013.19b0.9c40 ARPA Vlan100
Internet 10.1.1.41 0 1c17.d35a.c840 ARPA Vlan100
Internet 10.1.1.50 0 0002.b9b4.a5c0 ARPA Vlan100
Internet 10.1.1.60 0 000a.410f.e500 ARPA Vlan100
Internet 10.1.1.71 - 0008.e3ff.fc28 ARPA Vlan100
Internet 10.1.1.96 0 e02f.6d12.4df3 ARPA Vlan100
Internet 10.1.1.98 0 0050.5696.6d86 ARPA Vlan100
Internet 10.1.1.99 0 0050.5696.6d88 ARPA Vlan100
Internet 10.1.1.121 0 e02f.6d12.4dea ARPA Vlan100
Internet 10.1.1.122 0 e02f.6d12.4e61 ARPA Vlan100
Internet 10.1.1.123 0 e02f.6d5b.c10e ARPA Vlan100
Internet 10.1.1.124 0 e02f.6d17.c869 ARPA Vlan100
Internet 10.1.1.125 0 e02f.6d5b.c217 ARPA Vlan100
Internet 10.1.1.126 0 e02f.6d17.c8ec ARPA Vlan100
Internet 10.1.1.127 0 e02f.6d17.c876 ARPA Vlan100
Internet 10.1.1.128 0 e02f.6d5b.bef3 ARPA Vlan100
Internet 10.1.1.202 0 0000.85b7.9031 ARPA Vlan100
Internet 10.1.1.222 0 000f.f84d.2ca9 ARPA Vlan100
Internet 10.1.1.225 0 000f.f84d.3963 ARPA Vlan100
Internet 10.1.1.227 0 00c0.ee26.9367 ARPA Vlan100
Protocol Address Age (min) Hardware Addr Type Interface
Internet 10.1.1.250 - 0008.e3ff.fc28 ARPA Vlan100
Internet 10.1.1.254 0 0000.0c07.ac07 ARPA Vlan100
Internet 10.2.1.2 0 0011.4333.bcda ARPA Vlan100
Internet 10.2.1.3 0 0050.5689.5d38 ARPA Vlan100
Internet 10.2.1.4 0 0050.5689.0404 ARPA Vlan100
Internet 10.2.1.6 0 0050.5689.6d3b ARPA Vlan100
Internet 10.2.1.7 0 1cc1.def4.6940 ARPA Vlan100
Internet 10.2.1.8 0 0050.5689.330e ARPA Vlan100
Internet 10.2.1.9 0 0012.793a.3ccc ARPA Vlan100
Internet 10.2.1.10 0 0012.7990.e5d3 ARPA Vlan100
Internet 10.2.1.13 0 0050.568a.6dcf ARPA Vlan100
Internet 10.2.1.15 0 0050.568a.60ff ARPA Vlan100
Internet 10.2.1.18 0 0050.5689.091b ARPA Vlan100
Internet 10.2.1.20 0 0050.5689.451c ARPA Vlan100
Internet 10.2.1.21 0 0050.568a.0cf4 ARPA Vlan100
Internet 10.2.1.22 0 0050.5689.6c59 ARPA Vlan100
Internet 10.2.1.23 0 0050.5696.6d9e ARPA Vlan100
Internet 10.2.1.24 0 0050.5689.76c4 ARPA Vlan100
Internet 10.2.1.26 0 0050.5689.2f4e ARPA Vlan100
Internet 10.2.1.27 0 0050.5689.0632 ARPA Vlan100
Internet 10.2.1.28 0 0050.5689.1ce9 ARPA Vlan100
Internet 10.2.1.29 0 0050.5689.6aaa ARPA Vlan100
Internet 10.2.1.31 0 0050.5689.0d1a ARPA Vlan100
Internet 10.2.1.37 0 0050.5696.6d81 ARPA Vlan100
Internet 10.2.1.103 0 d4be.d9be.8eef ARPA Vlan100
Internet 10.2.1.106 0 14fe.b5e1.c595 ARPA Vlan100
Internet 10.2.1.107 0 0023.ae7d.a966 ARPA Vlan100
Internet 10.2.1.108 0 d4be.d9c8.6770 ARPA Vlan100
Internet 10.2.1.109 0 14fe.b5e9.c5b5 ARPA Vlan100
Internet 10.2.1.110 0 14fe.b5ea.5f9d ARPA Vlan100
Protocol Address Age (min) Hardware Addr Type Interface
Internet 10.2.1.111 0 001e.c959.d4f0 ARPA Vlan100
Internet 10.2.1.114 0 b8ac.6f48.4538 ARPA Vlan100
Internet 10.2.1.115 0 14fe.b5e1.ed89 ARPA Vlan100
Internet 10.2.1.116 0 7845.c409.1959 ARPA Vlan100
Thanks
Lotfi

High CPU with Flash video

I'm just wondering if anyone can shed any light on why my Macbook gets all hot and bothered whenever I play Flash video (i.e. from YouTube and others). After only a few seconds of streaming, the fans rev up and the CPU usage gets up pretty high, sometimes almost to 100%. This can't be normal, can it?
Anyone have any ideas for remedying this?

Hi Glueslabs,
In addition to my post here is quote from Eric Kracinski:
Safari is one of those apps that eats up RAM and CPU cycles the longer you leave it open. Closing it out every now and again should free up some of the RAM that it has allocated to it,
taken from :
http://discussions.apple.com/thread.jspa?messageID=4251872&#4251872
And I agree too, the longer I use Safari with all streaming video or leave it open and idle, will trigger the fans to kick in.
Good Luck.
ps: Quote use without permission from Eric Kracinski,..
Sorry Eric, can I use your quote for this...

High CPU with PSE7.

I have just started to have interest in running this program. I have been a longtime user of PSE, maybe since PSE1 in 2003 or so. My PSE55 has suffered some type of ODBC issue within the past weeks or so.
So, I copy some photos, about 130 JPGs, to my laptop, Vista Home, 64-bit, Core 2 Duo P8400, 4GB DRAM, regularly updated with MS security updates, Avira AV.
Fire up PSE7. CPU is unusually high, but eventually settles down. I go to edit, wow, the CPU utilization just will not stop. My CPU bar from processexplorer is just pegged at 100%. The only way to get control over PSE editor is to kill the running process. Reboot, same problem. I only have a little over 100 photos in this sample, I have thousands which any product I use must be able to handle.
Why does this product run at 90-100% CPU. I've even disabled Avira. I'm an admin, so its not a rights issue, besides UAC hasn't asked me to elevate priviledges. I've run it in my wife's “user” account, same problem, except I do not even have to load a photo for photoeditor to be 100% CPU.
What is up with this product?

To manager the performance settings of Editor, open Edit -> Preferences.
Under performance, select the memory usage slider and drag to the maximum.
In Organizer, and open the preferences, under Backup and Synchronization tab, Switch off Backup and Synchornization check box.
(or kill the process - syncagent.exe in Task manager)
These would improve the performance of PSE.

Wmiprvse.exe and high cpu with tzres.dll on 2008 R2

This sounds like a fairly common problem but I am about to go crazy troubleshooting this. I have a Windows 2008 R2 Standard 64-bit server running RDS session host role as a virtual machine on VMware ESXi 5.0 update 2 with the latest patches and the
latest VMware Tools loaded. It has an average of about 15 users on it at any given time. I see CPU start to increase after a while and notice the WmiPrvSE.exe processing (running as Network Service) consuming any available cycles. Running
Process Monitor I see a bunch of references to tzres.dll stream by. I enabled WMI Logging and checked but it seems to be a select statement for all processes coming from PID 0. I tried using NetMon and looking but it doesn't seem to be coming from
a network endpoint. I looked at the time zone patch from December 2010 as mentioned in other threads but that doesn't install because I guess I am patched past it (Windows Update only has a Silverlight patch remaining). I tried to look at the threads
through Process Explorer and by taking dump of the process and opening it in Windbg but honestly I'm not really sure what I am looking at. Nothing looked unusual but again, I'm not very good with those tools. We are not running WSRM or SMS
agent.
Versions:
OS Version: 6.1.7601
Service Pack: 1.0
WMI Version: 7601.17514
C:\Windows\System32\wbem\WinMgmt.exe - 7/13/2009 8:39 PM, version 6.1.7600.16385, size 78.0 KB
C:\Windows\System32\wbem\WmiPrvSE.exe - 11/20/2010 9:24 PM, version 6.1.7601.17514, size 364 KB
C:\Windows\System32\tzres.dll - 11/8/2012 11:45 PM, version 6.1.7601.17994, size 2.00 KB
C:\Windows\System32\tzutil.exe - 11/20/2010 9:24 PM, version 6.1.7601.17514, size 57.0 KB
Any help before I open up a case?

I had the same issue on a 2008 R2 terminal server,, so much research I put into it and not a lot of consistent help on this issue. I finally ran a
winmgmt.exe /resetrepository to start the sync over and CPU dropped to normal function.
I have been monitoring it all day and it seems fine, If it comes back I'll set the damn thing on a batch and schedule haha.
Deselo

High CPU with Safari Web Content

On my MacBook Air with MacOS X 10.9 when using Safari I would notice my computer getting hot and my fan going on. Using Activity Monitor the CPU was 99% for the process Safari Web Content https://gist.github.com. I Force Quit that process and it stopped but would eventually get hot again. I do not have any pages open to gist.github.com but I am looking at pages from github.com.
Any ideas of how to stop this behavior, or why gist.github in the culprit?

I'm seeing the same issue with a rouge Safari Web Content process on gist.github.com. I don't have any gists listed in reading list and the process restarts even on a fresh start of Safari.
I wonder if it could be an extension. I have 1Password, Shut Up, Ghostery, Pocket, ClickToPlugin, AdBLock, and Pinbar Beta installed. DonnieM51, do you have any of these installed?
I'm going to try removing or disabling them one by one to see if it helps.

WindowServer leak again... high cpu% with external monitor

Well, submitted feedback for another round of WindowServer process bugs/leaks. Seems like each OS X version has these, but it seems particularly bad with an external monitor connected with mini display port (or thunderbolt), up to 90% cpu causing lag everywhere (on a core duo... :). Disconnecting aux monitor drops the cpu to ~10%, reconnecting is fine for a while but it creeps back up eventually.
Otherwise like Yo so far. *Really* like having the new Terminal work with mouse scroll and page up/down keys in vim. Yes, linux server admin here (who also needs to run MS Office).

I'm having the same identical issue (external monitor Viewsonic VX2025wm Display 20-inch (1680 x 1050))...

High CPU with TextArea

Hi
I read DB records from file, one row is a record. Display the reading ID in TextArea, so that can know which record is reading.
but after read whole file, the CPU is freezed to about 98%, after 10 minutes, it will be Ok.I tried to trace the reason, found the event consume the time.
Anyone can tell me how to solve this problem?
thanx!

I got hit with this... and discovered that the string I had put in the text area contained some invalid unicode characters.. This was actually caused by a file corruption elsewhere and I ended up with some unicode carriage-returns which had the bytes reversed.
Whenever I inserted that string into a text area, my machine went catatonic and the text area showed up on my profiler as 99+% of the cpu. Once it had been "hit" once, the text area stayed slow until the program was shut down.
Maybe that will help you find the cause.

HIGH CPU with VSH Process in Module ACE 30

Hi
In a ace modulo, the CPU is 60 % aprox. and I a process "VSH" that generate this high use of CPU, some session lost.
How can control this process ?
version:
Version A5(1.2)
switch/prod# sh processes cpu | exclude 0.0
CPU utilization for five seconds: 100%; one minute: 59%; five minutes: 58%
PID    Runtime(ms) Invoked   uSecs 1Sec   5 Sec    1 Min   5 Min Process
10810      79264593 164468057    481     47 71.18% 19.54% 20.34% vsh
22988      38268195 92738856    412     57   0.1 % 22.51% 19.42% vsh
23273      38439564 91513671    420      6 71.20% 24.51% 22.73% vsh
24133      38732780 89694759    431     37   0.5 % 15.25% 16.59% vsh
switch/prod#
if you know somenthing.. please, let me know

Hi,
to-cp-ipcp-Limits represents the IPCP traffic from the DP(dataplane) to the CP(Control Plane) in
packets per second. This keyword prevents the overwhelming of the CP under high syslog
rate conditions (for example, level 7 messages).
This is an umbrella resource intended to prevent CP saturation so this should not impact
the traffic on ACE. One way to mitigate is to reduce the logging level on each context to
limit syslog messages coming from DP to CP.
So if you have a high logging level configured in contexts like logging level 7(debug) please reduce it
to lower level like "Warning". High level logging is recommended when you are troubleshooting an issue and then
you can turn it to lower level again.
Also, internal research threw up that DDTS but i would still suggest opening a TAC case for thorough investigation.
Regards,
Kanwla

High CPU with "autocommand telnet..."

I used the "autocommand telnet..." function to allow two async devices to communicate via a pair of 3640 routers. The routers have 32-port async modules installed for this solution. I have found that once a single connection establishes between the routers, the source router CPU jumps by about 17% while the destination router CPU jumps about 22%. Does anyone know if this is normal or if there is a way to reduce the jump in CPU?

The best option to fix the issue is to enable CEF.Using CEF will allow the router to process traffic in the most efficient way possible.

SGE2010P DHCP Snooping Bug

In some cases with DHCP snooping enabled, the switch can cause a DHCP request to be blocked.
This is appears to be a corner case but it has happened to me with two different pieces of hardware in two different scenarios.
First, I have a printer on a VLAN where other computers can get an IP address fine but when DHCP snooping is enabled, the printer is unable to obtain an IP.
Second, I created a separate VLAN for an isolated network and enabled DHCP snooping on that VLAN. A modem was hooked up to one port and added as a trusted interface. A computer was hooked up to another port and with DHCP snooping enabled, the computer was unable to obtain an IP address.
In both cases, the DHCP snooping binding table shows an IP of 0.0.0.0 for the port with a very low renew time (~100sec). Also, as soon as I disabled DHCP snooping for either of the above VLANs, the devices are able to obtain IP address. It appears that the DHCP OFFER is never making its way back to the device with DHCP snooping enabled.

Nah,
I think it has something to do with MAC addresses that don't start with 00.
Just a hunch though.
I know they will never fix it and I have moved on.
I guess it's the "quality" you should expect for Cisco Small Biz.

High cpu with dhcp snooping

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