my 3750-E Core Stack is connected to the Provider Router and is the DG for the internal LAN. I saw that the CPU is very high also in the night, but I found not the problem. I use an SVI to connect the provider due to HA reasons. I sniffered the network but saw no ecessive broadcaststorms. There was a PBR configured but I deleted it wihtout any success..
switch Version
15.0(1)SE1
10#sh proc cpu so
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We added Site02 for redundancy and DR. Also added new SAN and ESX hosts. The CPU on device Site01Server01 is not very happy when files are being transferred between the sites. Since the setup is the same at both sites, why is the problem only at site01?
Site02 is newer and we have two 3750X-24 with IOS 12.2(55)SE3 on ipservices, for site02server01; no problem.
Site01server01 is a stack of two 3750G-24PS with IOS 12.2(58)SE on ipservices.
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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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We have Cisco ME3400 switch, with configuration described below.
GE0/1 port is uplink:
interface GigabitEthernet0/1
description ***MATED-IUB_C&U-Plan***
port-type nni
switchport trunk allowed vlan 331,450,4085
switchport mode trunk
GEo/2 is configured as below:
interface GigabitEthernet0/2
description ***From NIB***
port-type nni
switchport access vlan 4085
[URL]
We have also tried Loopguard feature enabled on all ports: but after some period same problem is repeated.
version information is below:
Cisco IOS Software, ME340x Software (ME340x-METROIPACCESSK9-M), Version 12.2(25)SEG3, RELEASE SOFTWARE (fc2)
Copyright (c) 1986-2007 by Cisco Systems, Inc.
Compiled Wed 25-Jul-07 22:56 by amvarma
I have a connection that is loosing packets, my show interface output below summarises the interface where i believe the problem is occuring. My Hardware is 6509 running 12.2
View 1 Replies View RelatedI feel that 3560 and 3750 perform differently with the following two commands:
srr-queue bandwidth shape 5 0 0 0
srr-queue bandwidth limit 50
On 3750, the bandwidth for queue 1 is limited to 100mbps x 50% / 5 = 10mbps
On 3560, the bandwidth for queue 1 is limited to the smaller value of BW / shape weight and BW x limit%.
Does it sound about right? is there a way to check for mls qos input queue drops? The show mls qos interface xxx stat only shows the output queue drops. Maybe for some reason the input queue never drops?
Today I've received reports of slow internet access/activity and have noticed myself that it seems a bit slow today. On the dashboard of our asa 5510 the "outside interface" traffic usage is running constantly high. It's at the top of the graph. How can I tell what is causing the spike in utilization. It usually runs at about 1500-2000 Kbps, and now it's up over 10,000.
View 6 Replies View RelatedI've been looking at reported problems with our Vdeio Conferencing kit attched to a stack of 3750's (which I think is down to QoS) but this got me looking at the logs. We get a lot of high CPU utilization warnings mainly for SNMP (315), Hulc running con (95), Virtual exec (289). I understand the last two are normal, and the SNMP one is probably Cisco Works polling as it happens every 4 hours.
However I've got an odd one: Apr 25 07:34:58: %SYS-1-CPURISINGTHRESHOLD: Threshold: Total CPU Utilization(Total/Intr): 93%/0%, Top 3 processes(Pid/Util): 296/85%, 144/0%, 154/0%
What is Pid 296? It's not listed on the switch:
293 39056 18456 2116 0.00% 0.00% 0.00% 0 SpanTree Helper
294 8 73 109 0.00% 0.00% 0.00% 0 EEM Server
295 0 2 0 0.00% 0.00% 0.00% 0 EEM Policy Direc
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I have some events where the CPU utilization in a cluster switches of WS-3750 is going to 100%, the process with the major utilization of CPU is the "hulc running con".
View 3 Replies View RelatedIn Cisco 3750 facing high CPU utilization for specific period. During this period traffic response times across the switch degrades. Steps to identify interface potentially generating traffic. I have attached 'sh proc cpu history' , ' sh ip traffic', 'sh proc cpu sorted' during troubled period .
View 5 Replies View RelatedOur switch is very high cpu in process arp
Am debug ip arp track command the result as below
-- on this switch have interface vlan 201 ip subnet is 10.11.201.1/24
Jun 5 15:30:40.732 GMT+7: IP ARP: rcvd req src 10.11.201.217 0001.6c6b.8ab9, dst 172.27.116.73 Vlan201
Jun 5 15:30:42.150 GMT+7: IP ARP: rcvd rep src 10.11.201.217 0001.6c6b.8ab9, dst 172.27.116.4 Vlan201
Jun 5 15:30:42.150 GMT+7: IPARP_TRACK: ARP tableid(0) 10.11.201.217 Vlan201 mode(1) modified.
Jun 5 15:30:42.150 GMT+7: IP ARP: rcvd req src 10.11.201.217 0001.6c6b.8ab9, dst 172.27.116
and then am try to shutdown vlan database 201 after that the cpu process has to normal state.
How to check the root cacus?
I have a Switch WS-C3750E-48PD-SF with IOS 12.2(58)SE2 which reports more than 80% in utilization of memory I don't know what is causing the high memory utilization.
View 14 Replies View RelatedI'm facing high CPU utilization issue due to a ssh process on 3750 switch. What is the use of SSH proces in the switch? Can I disable it for troubleshooting?
will there be any impact if I disable it?
#sh processes cpu sorted 5min
CPU utilization for five seconds: 99%/0%; one minute: 66%; five minutes: 46%
PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process
159 1896078 589986 3213 3.96% 10.76% 14.00% 0 Hulc LED Process
165 32871 591 55619 77.42% 33.40% 8.85% 3 SSH Process
We are having 3750 Stack switch as our edge switch. Here we are having some issues as low memory & itermediate High CPU utilization.For memory when we checked its shwoing maximum memory is allocated to DHCPD receive & ARP Input as follows
Processor Pool Total: 70829380 Used: 56809532 Free: 14019848
I/O Pool Total: 12582912 Used: 8554920 Free: 4027992
Driver te Pool Total: 1048576 Used: 40 Free: 1048536
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i want to understand why this 2 proceses (DHCPD & ARP input) taking more memory?High CPU: We also facing intermediate high CPU utilization (above 95%). When CPU is high there were 2 processes consuming more CPU are 'Spanning Tree' (about 20%) & ARP Input (about 66%). we also checked the ARP entries, there were 1500 ARP entries & 2 incomplete ARP (out of 6000 ARP supported)
I have a new cisco 3750 stack comprised of 8 members (6 x 3750G-48PS and 2 x 3750V2-48PS) running 'c3750-ipservicesk9-mz.122-58.SE2.bin'. I am seeing high memory utilisation, it seems to sit fairly stable and I do not see an increase but this has only been running a few days. No errors or performance issues. Should this be a cause for concern?
View 3 Replies View RelatedWe have a 3750 stack with a mix of 3750G and 3750X switches. The current active template on the switch is desktop default and we are running EIGRP on the switch with large routing table so we get the TCAM error that a specific prefix cannot be programmed in TCAM memory so it will be software forwarded.%PLATFORM_UCAST-4-PREFIX: One or more, more specific prefixes could not be programmed into TCAM and are being covered by a less specific prefix, and the packets may be software forwarded
This error is quite frequent on a daily basis. My question is that will this error create a high CPU situation and affect traffic processing on the stack causing ESX Hosts to become unresponsive?
WS-C3750G-24TS-S1U switch stack with high CPU utilization. 3 switches are stacked and using PBR on that. I am attaching the show cpu process as an attachment.The current template is "desktop routing" template.The selected template optimizes the resources in the switch to support this level of features for 8 routed interfaces and 1024 VLANs. [code]
View 0 Replies View RelatedHere is my conf:
no service pad
service timestamps debug datetime msec
service timestamps log datetime msec
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Our 2811 Edge router is having extremely high CPU problems. IP Input is consuming 70% of the process during business hours. Cisco express forwarding is enabled. It only shows 50% but its currently before business hours. Id say even 50% is still high.
CPU utilization for five seconds: 55%/16%; one minute: 70%; five minutes: 76%
PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process
104 5310320 2813117 1887 36.92% 46.73% 51.43% 0 IP Input
The below interface is our public interface and is constantly over utilized with 100% Is there any configurations that can be done to correct this? Is there any more information that is needed?
IOS: (C2800NM-ADVSECURITYK9-M), Version 12.4(24)T4
Show IP Interface
FastEthernet0/0 is up, line protocol is up
Internet address is x.x.x.x
Broadcast address is x.x.x.x
Address determined by non-volatile memory
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I have a small network of 4 x 3750s running routing (OSPF) which contain all company firewalls. It bridges internal trusted corporate networks (depots etc) to external untrusted networks (Internet/Datacenter networks). It sees a fairly high level of traffic running through it (it gets forwarded to firewalls at gig speed).OSPF is costed to remove asymetric routing so one 3750 is acting as primary and does most of the work. The 3750s are in area 0, and all other areas are summarised to some degree. However, CPU is running high on the 3750 when looking at the history at times: [code]
although the average is around 26% the 72hour picture would suggest that CPU is running at 100% at times. Is this an imminent concern that needs re-designing, or is this normal behaviour (SPF running for instance) that is manageable?
We are facing since one month in our two Cisco WS-C3750G-12S on many interfaces input errors when data transer or ping (ICMP) increase input erros. Not only port 1 but many interface has same issue, i have change new IOS but still same issue, once i have erase startup config but same issue we are facing and finaly i have replace same new switch with the same IOS it's working fine.(c3750-ipservicesk9-mz.122-55.SE4.bin) [code]
View 11 Replies View RelatedWhat does RP drops entail? We are experiencing 0.23 % drops on an vlan int on one of our 6500. This interface is an L3 to a server-subnet. Doing a sh int vlan 238 switching shows 30935411 RP (Route Processing) drops.It was a bit unclear to me in the thread "Input queue drops on 6500 vlan interface" if RP drops was through the router, or to the router(mgmnt)?I can do a netdr to see what traffic goes to it. It should not generate CPU load, but I think I will wait until after hours before I try that command.
- do NETDR:
-- debug netdr cap rx vlan 238
-- show netdr cap
I have a 6509E switch with dual 6Kw power supply that is logging "Power supply 1 input has changed. Power capacity adjusted to 2671.20W" then will bounce back to normal at random times from 1sec to 10sec. Is there a command to check what each input level of the power supply to try to identify possibly which source is causing the problem? The power supply input lights remains green while this is occuring.
View 3 Replies View RelatedI have 2 NX4001. Each one has an uplink to a 5K. There is no VPC between the 4K and the 5K. The 5K are VPC enabled.There is a large number on input discards on the 4001 interfaces connected to the 5K and is incrementing.I have a server with smartfailover that is flapping and I think the input discard might be the culprit.what is the cause on input discard. Note: All NXOS to the latest.
View 2 Replies View RelatedI am not sure why the CRC and input errors are increasing in fastethernet port...This port is used as Intradomain cross connect to Data Center service provider for LAN extension between two Data Centers in different locations... The link is 100 MB. The switch port is directly connected to patch panel of DC provider and I believe they have some L3 switch or some other device that is providing LAN extension...
#sh interfaces fastEthernet 0/23
FastEthernet0/23 is up, line protocol is up (connected)
Hardware is Fast Ethernet, address is 0019.3050.1497 (bia 0019.3050.1497)
Description: ASA_VPN_TO
MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec,
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I am not sure why the CRC and input errors are increasing in fastethernet port...This port is used as Intradomain cross connect to Data Center service provider for LAN extension between two Data Centers in different locations... The link is 100 MB. The switch port is directly connected to patch panel of DC provider and I believe they have some L3 switch or some other device that is providing LAN extension...
#sh interfaces fastEthernet 0/23
FastEthernet0/23 is up, line protocol is up (connected)
Hardware is Fast Ethernet, address is 0019.3050.1497 (bia 0019.3050.1497)
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I have some trouble with that policy-map on my 2960 or 3560 switches with LAN base 12.2(53)SE2. I want to use that feature to catch video traffic from webcams in laptops which can't send dscp values out of the box. This is my test config to check if the function is working: catch every traffic from my workstation for testing, access-list 101 permit ip any any, class-map match-all CL_TEST
1. I can't see any counters with the command "sh policy-map interface FastEthernet 0/1". Cisco tells that this command is not possible. But how I can see if the policy is working correct?
2. When I did the configuration I can't see any packets with dscp af41 on the out going interface on the switch with "sh mls qos int gi0/1 statistic" as I expected. After reloading the switch I see the pakets with af41. Okay for that moment. But.After that I changed something in the policy-map. Only "set ip dscp ef" for a second test.
Generating some traffic I see only packets with af41 as before I changed the policy-map. No traffic with ef on the outgoing interface.
I have an ASR 1002x connected to a 6513. Connection is from ASR Gig Copper SFP to 6513 Copper 10/100/1000 port. The ASR is recevinig Runt and input errors. I have removed the negotiation auto command on both boxes and hard coded the speed etc and still errors occur. I have also added the negotiation auto to both devices and also removed it with out hard coding the speed at and same results. Everytime I have seen these errors is has been to collision caused by a duplex mismatch.
View 4 Replies View RelatedI have a video feed coming into my 3570. It comes in at 5 minute input rate 18777000 bits/sec, 1695 packets/sec. However, the uplink to the router is much different, 5 minute output rate 130000 bits/sec, 28 packets/sec. I am in a lab and about ready to go into testing phase for a project when we discovered this problem, as this video feed is not veiwable on the other end.
Below is the config and capture from the switch.
BLOSSw1#sh int g1/0/6GigabitEthernet1/0/6 is up, line protocol is up (connected) Hardware is Gigabit Ethernet, address is a44c.112f.3506 (bia a44c.112f.3506) MTU 1500 bytes, BW 1000000 Kbit/sec, DLY 10 usec, reliability 255/255, txload 1/255, rxload 4/255 Encapsulation ARPA, loopback not set Keepalive not set Full-duplex, 1000Mb/s, link type is auto, media type is 10/100/1000BaseTX SFP input flow-control is off, output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input never, output 00:00:00, output hang never Last clearing of "show interface" counters 15:16:25 Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute
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I can see drops on one of our busy L3 vlan in the input queue and are going up very frequently.System image file is "sup-bootflash:s72033-psv-mz.122-18.SXD3.binHardware = 6509
View 1 Replies View RelatedI have an odd situation where I cannot get a device connected to a built in switchport with out input and crc errors. When connecting to a GLC-T sfp it works fine.Here is my test layout
Outdoor wireless AP --- 10' of cat6 cable --- Gigabit POE injector --- 10' Cat6 cable --- 3560G port 48. (input and crc errors)
When I do this there are input and crc errors on the switch port. This has been confirmed on three different switches and three different outdoor AP's. We though at first it was the injector, but when we run the same setup, but instead connect the device to port 49 with a GLC-T sfp there are no errors.
Outdoor wireless AP --- 10' of cat6 cable --- Gigabit POE injector --- 10' Cat6 cable --- 3560G port 49 (GLC-T). (No errors)
I have upgraded the 3560G to the latest ios and still it has the same problem. If I run the same setup to a 2960 there are no errors at all.
Outdoor wireless AP --- 10' of cat6 cable --- Gigabit POE injector --- 10' Cat6 cable --- 2960 port g0/1 (No errors)
I have also tried manually setting the speed on the 3560G with no success.
What are recommended commands to get input for network documentation (for disaster recovery)?
I've got 6500 with these modules: WS-SVC-FWM-1,
WS-SVC-IDSM-2, VS-S720-10G, WS-X6704-10GE, WS-X6748-SFP and dozens of WS-C3750E-48TD in couple of buildings.
So far I have these commands: Code...
On my SUP-7E, when I issue a " show interface vlan X " I cannot see the expected input/rate reflecting the real rate (which should be very high).
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 4000 bits/sec, 2 packets/sec
(Under the physical interfaces it is ok)However on other SUP-IV I can see the real rate.
My questions are :
- Why the SUP-7E does not reflect the rate, whereas the SUP-IV does ?
- I have heard about the 'counter' command under the vlan interface to activate the rate counters. Is this command application has any side effect on the switch ?