System FCS error frames on Catalyst 3750

Please,
may someone explain what are the "System FCS error frames" I see with "show controllers ethernet-controller" on some ports of a Catalyst (on trunk and also on access ports) WS-C3750G-24TS-S (3 switches in stackwyse)?
Error counters advance slowly, but they do grow... and I am afraid this could be the reason for variable slow access time to a server application menu...
For example "8 System FCS error frames".
The ports are connected to a PIX-515E and I see the same error count on the firewall interfaces (PIX "show interface" command shows me "8 input errors, 8 CRC, 0 frame, 0 overrun, 8 ignored, 0 abort")
A few errors may be seen also on other ports, connected to other (C3550)switches.
I tried to upgrade the IOS version, so I loaded "ipbase 12.2(25)SEB4 " on the Catalyst 3750, but it did not solve the problem.
PIX firewalls are running software 6.3(4).
Why these errors are called "System FCS error frames" ? I could not find anything searching on Cisco CCO!
Thanks

I apologies for the delay answering, my notebook has been down for 5 days and also cco access password...
Thank you for the explanation and suggestion.
We have a second rack with another three switch 4750 in stackwyse, same models as the "faulty" ones, and the errors are not present on those switches, so it must be something hardware related on the first group of switches.
I cannot touch those devices at the moment, we captured traffic frames with 3 Notebook PCs running "Ethereral" lan sniffer, traffic to and from the server and two clients and we discovered that in different ports of those switches, some packets never reach the clients, causing many TCP retransmissions, especially witch continuous traffic (http get and ftp transfers). This problem is visible on some, but not all, of the catalsyt 3750 switches in stackwyse, but in every one of the three switches. We are planning to go on-site and replace the hopefully faulty one ( or reseat the cables as you suggested).
Is this a problem you have seen before?
Regards
Franco Feri

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Hi Please find the contents of std_server.out below.
stdout/stderr redirect
node name   : server0
pid         : 4124
system name : KEC
system nr. : 01
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Kgepop: no error frame to pop to for error 600

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Catalyst (3750 24 10/100/1000T) and (3750 12 SFP) Stacking Problems

Dear all
I'm having a very strange situation here (at least for me)
we have 4 core switches
2 x   WS-C3750G-24T-S Catalyst 3750 24 10/100/1000T + IPB Image
and
2 x   WS-C3750G-12S-S Catalyst 3750 12 SFP + IPB Image
Stack configuration is done this way
when the switches are powered on, the first two SFP core switches are seen as a single stack with the stack master LED turned green on the first switch
the other two (24 10/100/1000T) switches have the RPS LEDs always green, mode cannot be changed, and cannot be accessed by Console connection
but when the (24 10/100/1000T) are powered off, the first (SFP) switch in the stack reports that " Switch 3 and 4 has been removed from Stack "
which means they are stacked but there's something wrong, because
only the SFP ports are shown in the " Show interfaces status " , the ethernet ports of the bottom switches are not present !!!
can you please tell me what's the poblem ?

Dear Daniel
Sorry for my delayed response but i was actually quite busy
but the problem was actually in another sense
the default profile for the Catalyst 3750 SFP is the Aggregate SDM Template
while the 3750 10/100/1000 ethernet Switch Default SDM profile was Desktop profile
so i had an SDM mismatch
DATACENTER#sh switch detail
Switch/Stack Mac Address : 081f.f3cf.1c80
                                           H/W   Current
Switch# Role   Mac Address     Priority Version State
*1       Master 081f.f3cf.1c80     1      0       Ready
2       Member 081f.f3cf.5900     1      0       Ready
3       Member aca0.16ac.0180     1      2       SDM Mismatch
4       Member aca0.16a3.bc80     1      2       SDM Mismatch
         Stack Port Status             Neighbors
Switch# Port 1     Port 2           Port 1   Port 2
1        Ok         Ok                2        4
2        Ok         Ok                3        1
3        Ok         Ok                4        2
4        Ok         Ok                1        3
all i did was changing the default profile of the SFP switches into the Desktop Profile and problem was solved
switch 1 provision ws-c3750g-12s
switch 2 provision ws-c3750g-12s
switch 3 provision ws-c3750g-24t
switch 4 provision ws-c3750g-24t
system mtu routing 1500
ip subnet-zero
no file verify auto
spanning-tree mode pvst
spanning-tree extend system-id
vlan internal allocation policy ascending
interface GigabitEthernet1/0/1
interface GigabitEthernet1/0/2
interface GigabitEthernet1/0/3
interface GigabitEthernet1/0/4
interface GigabitEthernet1/0/5
interface GigabitEthernet1/0/6
interface GigabitEthernet1/0/7
interface GigabitEthernet1/0/8
interface GigabitEthernet1/0/9
interface GigabitEthernet1/0/10
interface GigabitEthernet1/0/11
interface GigabitEthernet1/0/12
interface GigabitEthernet2/0/1
interface GigabitEthernet2/0/2
interface GigabitEthernet2/0/3
switchport trunk encapsulation dot1q
switchport mode trunk
interface GigabitEthernet2/0/4
interface GigabitEthernet2/0/5
interface GigabitEthernet2/0/6
interface GigabitEthernet2/0/7
interface GigabitEthernet2/0/8
interface GigabitEthernet2/0/9
interface GigabitEthernet2/0/10
interface GigabitEthernet2/0/11
interface GigabitEthernet2/0/12
interface GigabitEthernet3/0/1
interface GigabitEthernet3/0/2
interface GigabitEthernet3/0/3
interface GigabitEthernet3/0/4
interface GigabitEthernet3/0/5
interface GigabitEthernet3/0/6
interface GigabitEthernet3/0/7
interface GigabitEthernet3/0/8
interface GigabitEthernet3/0/9
interface GigabitEthernet3/0/10
interface GigabitEthernet3/0/11
interface GigabitEthernet3/0/12
interface GigabitEthernet3/0/13
interface GigabitEthernet3/0/14
interface GigabitEthernet3/0/15
interface GigabitEthernet3/0/16
interface GigabitEthernet3/0/17
interface GigabitEthernet3/0/18
interface GigabitEthernet3/0/19
interface GigabitEthernet3/0/20
interface GigabitEthernet3/0/21
interface GigabitEthernet3/0/22
interface GigabitEthernet3/0/23
interface GigabitEthernet3/0/24
interface GigabitEthernet4/0/1
interface GigabitEthernet4/0/2
interface GigabitEthernet4/0/3
interface GigabitEthernet4/0/4
interface GigabitEthernet4/0/5
interface GigabitEthernet4/0/6
interface GigabitEthernet4/0/7
interface GigabitEthernet4/0/8
interface GigabitEthernet4/0/9
interface GigabitEthernet4/0/10
interface GigabitEthernet4/0/11
interface GigabitEthernet4/0/12
interface GigabitEthernet4/0/13
interface GigabitEthernet4/0/14
interface GigabitEthernet4/0/15
interface GigabitEthernet4/0/16
interface GigabitEthernet4/0/17
interface GigabitEthernet4/0/18
interface GigabitEthernet4/0/19
interface GigabitEthernet4/0/20
interface GigabitEthernet4/0/21
interface GigabitEthernet4/0/22
interface GigabitEthernet4/0/23
interface GigabitEthernet4/0/24
that's it !
: D
cheers

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Sun Jun 22 20:13:47 2008
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CR0: 0x80010033, CR2: 0x00000000, CR3: 0x013ab000, CR4: 0x00000660
EAX: 0x00000000, EBX: 0x045ce1e0, ECX: 0x05782c64, EDX: 0x00010001
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0x344d3b08 : 0x1a8cd4 (0x4627fc 0x7efc12 0xe 0x461fac)
0x344d3be8 : 0x19ede5 (0x344d3c00 0x206 0x344d3ca8 0x7efc12)
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0x344d3ca8 : 0x3ef261 (0x45ce1e0 0x46a2c40 0x49a7a4 0x0)
0x344d3ce8 : 0x40abe6 (0x46a8040 0x46a2c40 0x344d3d28 0x3eeac0)
0x344d3d08 : 0x40e4fb (0x46aec00 0x46a2c40 0x46aec04 0x46aec00)
0x344d3d28 : 0x43ab14 (0x46aec00 0x46a2c40 0x600000 0x19c8d1)
0x344d3d78 : 0x18801e (0x46aec00 0x4a5e5ac 0x4a5e5c0 0x11d975)
0x344d3db8 : 0x12d17e (0x450adac 0x4a5e590 0x0 0x0)
0x344d3df8 : 0x126257 (0x450ad00 0x0 0x18 0x344d3ee4)
0x344d3f08 : 0x1973dd (0x344d3f44 0x0 0x0 0x0)
0x344d3fc8 : 0x19f3b3 (0x479fee0 0x0 0x10 0x0)
No mapping exists for frame pointer
Backtrace terminated-invalid frame pointer 0xbffff1c8
Kernel loadable modules in backtrace (with dependencies):
com.apple.iokit.IOFireWireIP(1.7.1)@0x7ea000->0x7f2fff
dependency: com.apple.iokit.IOFireWireFamily(3.4.4)@0x6ed000
dependency: com.apple.iokit.IONetworkingFamily(1.6.0)@0x5d1000
BSD process name corresponding to current thread: ioreg
Mac OS version:
9D34
Kernel version:
Darwin Kernel Version 9.3.0: Fri May 23 00:49:16 PDT 2008; root:xnu-1228.5.18~1/RELEASE_I386
System model name: MacBookPro3,1 (Mac-F4238BC8)
This is the System Config:
Model: MacBookPro3,1, BootROM MBP31.0070.B07, 2 processors, Intel Core 2 Duo, 2.4 GHz, 2 GB
Graphics: GeForce 8600M GT, GeForce 8600M GT, spdisplayspciedevice, 256 MB
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Memory Module: BANK 1/DIMM1, 1 GB, DDR2 SDRAM, 667 MHz
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Bluetooth: Version 2.1.0f17, 2 service, 1 devices, 1 incoming serial ports
Network Service: Ethernet, Ethernet, en0
PCI Card: pci168c,24, sppci_othernetwork, PCI Slot 5
Serial ATA Device: FUJITSU MHW2160BHPL, 149.05 GB
Parallel ATA Device: HL-DT-ST DVDRW GSA-S10N
USB Device: Built-in iSight, Apple Inc., high_speed, 500 mA
USB Device: Bluetooth USB Host Controller, Apple, Inc., full_speed, 500 mA
USB Device: Apple Internal Keyboard / Trackpad, Apple Computer, full_speed, 500 mA
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Hello @larrycarol99,
I understand that after upgrading your computer when you plug in an ethernet cord you get a hardware malfunction error. I am providing you with a Microsoft Support document: Hardware Malfunction Results in System Error Message that explains what causes that error and provides steps on fixing it. I am also including a link to the Compaq Presario 5300US Desktop PC Drivers page, which unfortunately does not have any drivers for your computer running Windows Vista.
I hope this helps. Thank you for posting on the HP Forums. Have a great day!
Please click the "Thumbs Up" on the bottom right of this post to say thank you if you appreciate the support I provide!
Also be sure to mark my post as “Accept as Solution" if you feel my post solved your issue, it will help others who face the same challenge find the same solution.
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Policer with IPv6 class-map on Catalyst 3750

Hi,
I've the following problem.
It's my goal to ratelimit incoming IPv6 traffic dependent on the destination IP address range.
On a Catalyst 3750 (Image: c3750-ipservicesk9-mz.122-55.SE1.bin) I've set up the configuration as follows:
mls qos
ipv6 access-list DESTINATION-RANGE-A
permit ipv6 any 2007::/16
ipv6 access-list DESTINATION-RANGE-B
permit ipv6 any 2B03::/16
class-map match-all A
match access-group name DESTINATION-RANGE-A
class-map match-all B
match access-group name DESTINATION-RANGE-B
policy-map RL-POLICY
class A
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class B
police 6000000 8000 exceed-action drop
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switchport access vlan 90
load-interval 30
service-policy input RL-POLICY
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If you are thinking of IPv6 prefix I tried everything. From /128 for single host to /64, nothing works.

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class B
police 6000000 8000 exceed-action drop
interface GigabitEthernet1/0/7
switchport access vlan 90
load-interval 30
service-policy input RL-POLICY
The last CLI command which should bind the policy to the specific interface, leads to the following error message
QoS: class(A) IPv6 class not supported on interface GigabitEthernet1/0/7
Are hardware/software limitations the reason for this behavior or is there any misconfiguration?
Thanks in advance for your help!
Regards,
Jens

If you are thinking of IPv6 prefix I tried everything. From /128 for single host to /64, nothing works.

Kgepop: no error frame to pop to for AND In-flux value for a pin

Hello,
I'have a big problems with my oracle forms web.
Since we have make an upgarde from 10g to 11gr1 of our system, some forms crashe when we make a search from the menu bar.
in the log file there are these errors:
1) FRM-93652 : The runtime process has terminated abnormally.
2) FRM-93546 : external message from runtime process: kgepop: no error frame to pop to for error 600
3) FRM-93546 : external message from runtime process: In-flux value for a pin at 0x1f63b008
I've test with a button in the forms and not by the menu and it work fine.
thanks in advance

What is your Client Java and Browser versions and the exact version of Fusion Middleware (FMw) 11g R1 you are using? You could just be dealing with a software bug that could be fixed by upgrading your Java version or applying a FMw patch, but we need to know your versions in order to be sure.
Craig...

/31 on Catalyst 3750 routed port

I've discovered the feature 'Using 31-Bit Prefixes on IPv4 Point-to-Point Links' and I'm interested in implementing it on a point-to-point uplink network that terminates on one end to a Catalyst 3750 routed FastEthernet port ("no switchport").
I can enter the IP address in the interface config (172.16.100.0 255.255.255.254), and I get the warning "% Warning: use /31 mask on non point-to-point interface cautiously". Since I can guarantee that this is in fact a point-to-point uplink to a Layer 3 device, can I safely ignore the warning? Is there any way to configure the interface explicitly as a Point-to-Point interface instead of a broadcast interface?
Thanks!
-Mason

Hi,
It doesn't appear the error is platform specific. I am getting the same error in my lab 2600 when configuring a /31 bit mask.
You would use the /31 bit mask only on a p-t-p interface hence, you don't need to tell the interface it's a p-t-p interface. I don't know of any generic command to tell the broadcast interface that it's a p-t-p interface. There is a OSPF command but that doesn't have anything to do with this setup.
R2(config)#int e0/0
R2(config-if)#ip add 1.1.1.0 255.255.255.254
% Warning: use /31 mask on non point-to-point interface cautiously
R2(config-if)#^Z
R2#show run
*Mar 1 18:20:21.795: %SYS-5-CONFIG_I: Configured from console by console int e
/0
Building configuration...
Current configuration : 78 bytes
interface Ethernet0/0
ip address 1.1.1.0 255.255.255.254
half-duplex
end
R2#show ip arp
Protocol Address Age (min) Hardware Addr Type Interface
Internet 1.1.1.0 - 0004.dd85.eee0 ARPA Ethernet0/0
R2#ping 1.1.1.1
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 1.1.1.1, timeout is 2 seconds:
Success rate is 80 percent (4/5), round-trip min/avg/max = 1/3/4 ms
R2#show ip arp
Protocol Address Age (min) Hardware Addr Type Interface
Internet 1.1.1.1 0 0004.dd85.e9c0 ARPA Ethernet0/0
Internet 1.1.1.0 - 0004.dd85.eee0 ARPA Ethernet0/0
HTH
Sundar

Catalyst 3750 interface explaination

Dear Sir,
I don't understand as follows :-
1.) why on Catalyst3750 interface fastethernet 1/0/1 ?? <--- what's the meaning of 1/0/1 ?
2.) what's the meaning of no mdix auto?
Please explain and advise.
Thank you.

The 3750 has many interesting features, I recommaned you go through before you connect your switches in a production environment.
Basically, you should provision your stack master with the number of switches and their types. You could provision as well the interfaces with their corresponding configurations, even though the other elements are still not connected yet. This way, you ensure, when you add a provisioned element with the right number, it will take exactly the provisioned configuration you've already set on the master,... as well when changing an element with an other, when moving it,... you will have just to provision its number and then connect it to the stack while is not yet powered on.
Second, it is recommanded to set priority to each element, this way you will have a deterministic configuration and you know in advance which one will be reelected as master in any sitution.
If no provision is set on the stack master, when you connect a switch, it has by default the number "1", in this case the newly added switch will take the lowest switch number available (2).
1.) 1/0/1 --> so the second will be 2/0/1.
And to address its ports you tape: 2/0/1, 2/0/2, 2/0/3,2/0/4,...2/0/24,...
How to stacked both of the catalyst 3750? just purchase one stackable cable to link both of them and will it automatically configure the 2nd switch from 1/0/1 to 2/0/1 after we plug in the stackable cable into the 2nd switch.
For large deployment I recommand the switches to be provisioned manually: Before stacking the switches:
1/ power on the switch that will be the stack master, then wait till it will be in "Ready" state by issuing "show switch detail" command.
2/ Provision the stack master with the desired stack configuration (numbers of switches, types of switches and interfaces configurations).
3/ Reload the stack master.
4/ Provision the second switch with its number and type.
5/ Power off the second switch afetr having saved its configuration.
6/ Stack the second switch to the stack master.
7/ power it on. It will take the provisioned configuration on the stack master.
The advantage of this procedure is that switches could not be renumbered while stacked and running.
Repeat steps 4 to 7 for each new element having been provisioned in the stack master.
Do not forget to save after each step.
2.) so i put "no mdix auto" on catalyst 3750, what's the meaning and impact?
no mdix-auto will disable the advanced feature of abstructing the type of cable (staight throu or cross over). You will downgrade to the standard interfaces specifications. In fact, mdix-auto (activated by default) permits to not to have the "overhead" of distinguishing crossover and straight throu cables, the interfaces will adapt automatically to the type of cable.
An other advantage of this function is that it opimises (combined with other functions) error and recovery procedures in layers 1 and 2.
Mohamed BEN HASSINE

AP 1130 high number of FCS errors

Hello Mates,
we have a WLC 4402 with 7 access points 1130 running in our office. in the access point statistics 802.11 MAC counters is see i high number of fragments and failures.
Tx Fragment Count          9209812
Tx Failed Count               279133
Multiple Retry Count        174745
ACK Failure Count          1446122
Multicast Rx Frame Count 234598
Tx Frame count               67297291
Multicast Tx Frame Count     137774
Retry Count                    1540676
Frame duplicate count      59843
RTS failure count              94554
Rx Fragment count            0
FCS Error Count               22879679
WEP Undecryptable Count     384
any comment to the numbers ?
cheers
alex

Alex,
I'm working with a client that has a similar issue. They have a 4402 and about 30 APs. The FCS counters on all of the APs are growing at a fast pace (millions a day). I've opened a TAC case to try and determine if the errors I'm seeing are "normal" (within an acceptable range). The impression I have, thus far, is that it is not acceptable. Since the users are not happy with the performance of the applications which rely on the wireless network, we've decided to pursue this further.   They had me dumb down the APs by making a few basic changes to the wlan and that did not reduce the rate of errors. Now they're focusing on transmit levels. The client only uses wireless from some thin clients and TAC wants me to find out what the max. transmit power level is for these thin clients. Wireless is not my cup of tea so I'm not going to try and get into a technical discussion. I'll only pass along what TAC is telling me (as I understand it). The APs can transmit at one of 8 power levels. Each power level is 1/2 the power level of the level above it. For example, PL1 would be 100 milliwatts, PL2 would be 50 milliwatts, PL3 is 25, etc. In any case, suppose that you have a device that has a maximum transmit power level of 30 milliwatts and your APs are set to transmit at 50 milliwatts. What will happen is that as the client devices get further and further out towards the edge of their transmission range, they will still be able to pick up signal from an AP but the AP will no longer be able to pick up signal from the client device. So, the client device will try to send data to the AP but the data will arrive at the AP with errors. In trying to explain this to me, they used voice as an example. They talked about how in wireless environments in which wireless IP phones exist, sometimes the phones will have a transmit level of about 30 milliwatts and what will happen is that users will experience 1-way audio issues because the stronger signal from the WAP will reach the phone but the phone signal will not reach the WAP. So as a phone user starts to roam further from the WAP, the user will still hear the caller on the other end but the caller on the other end will not hear the wireless phone user. As I understand it, the solution to that would be to reduce the transmit power on the APs to be more inline with the maximum transmit power of the lowest common denominator device on the network. The downside to that, though, would be more holes in coverage. You'd probably find yourself in a position where you'd have to deploy more APs to fill in the holes. At least that's the gist I'm getting from the discussion I had with TAC on Friday.   In any case, if we end up doing somethnig that reduces the error rates I'll let you know what we end up doing.
Regards,
Steven

System fan error on g62-352ca on startup. are there two fans ie a cpu fan and a system fan?

I get a system fan error on power up? Are there two fans in the G52-352CA? Ie a general system fan and a CPU cooling fan or just the one CPU/heatsink fan?
If it is the CPU/heatsink fan then there are 4 part numbers for different options. Is there some way to tell from the model number or features as to which is needed. I would prefer to have the part in hand before opening everything up. Are there better fans to buy and if so how do I find them? This unit was always running a little on the warm/hot side,

Hi,
Could you add the error message to the next reply?
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Radio Utilization and FCS Errors

Here is an output from our Aruba Airwave server. I've been trying to reduce the constant radio utilization on some of our APs. I succesfully did it by disabling the 1 and 2Mb data rates on the APs. However, for some reason the FCS errors have gone up on all APs. Any ideas why? The graph on the left shows a drop in interference, so I would think the FCS errors would decrease.
Thanks,
Chris

On a good note, it looks like the drop in radio utilization translated to a significant throughput increase. On some of our APs, we are seeing a 100% increase in throughput speeds. This was using a 2.4Ghz N client with 20MHz channels connecting to an 1140 AP. I'm going to do a site-survey later on some of our 3500 APs.
I also temporarily disabled the 5.5 and 11 Mb speeds and saw another slight (20-30%) jump in throughput, but we aren't ready to kick 802.11b clients off the network.

System FCS error frames on Catalyst 3750

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