POST error Catalyst 2950

I have a Catalyst 2950 series 12 prt. switch. When the switch is booting I receive the following error: "00:00:13: POST: Packet DA mismatch on port: 9"
What does this message means? Can I still use this port?
Kind regards,

This is part of the power on self test(POST).
The switch sets the interface to loopback and sends
a packet. If anything is wrong or changed with
the packet then you get an error. In this case
the DA (destination address) was changed on
the received packet. I assume since this is a
switch they are referring to the layer2 address.
I would think this would indicate a possible hardware
failure.

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Catalyst 2950 Switch flash_init error

Hi Everyone,
I'm new to Cisco products and have a small home lab set up. I have a Catalyst 2950 switch that I would like to restore to factory defaults. Here is the issue I'm having and can't figure out.
I pull the power, telnet into the console port, hold the mode button and restore power. The boot loader (Version 12.1(11r) starts and says the usual message the system was interrupted prior to flash initialization (Paraphrasing here)
I get to the switch: command line, enter flash_init. Flash states it initialized and then all I get is a < with an underscore under it prompt. Anything I try to type comes up as bizarre characters and I can not get back to a switch: prompt unless I reboot the switch manually. Unsure of what to do here.
Thanks in advance!
-Matt
Telnet session:
C2950 Boot Loader (C2950-HBOOT-M) Version 12.1(11r)EA1, RELEASE SOFTWARE (fc1)
Compiled Mon 22-Jul-02 18:57 by antonino
WS-C2950T-24 starting...
Base ethernet MAC Address: 00:06:52:bb:c9:40
Xmodem file system is available.
The system has been interrupted prior to initializing the
flash filesystem. The following commands will initialize
the flash filesystem, and finish loading the operating
system software:
flash_init
load_helper
boot
switch: flash_init
Initializing Flash...
flashfs[0]: 4 files, 2 directories
flashfs[0]: 0 orphaned files, 0 orphaned directories
flashfs[0]: Total bytes: 7741440
flashfs[0]: Bytes used: 3726848
flashfs[0]: Bytes available: 4014592
flashfs[0]: flashfs fsck took 7 seconds.
...done initializing flash.
Boot Sector Filesystem (bs:) installed, fsid: 3
Parameter Block Filesystem (pb:) installed, fsid: 4
õíííííí <---These characters appear no matter what keys I hit.

Hi mattymattlynch
Check the workaround on the following documents:
http://www.cisco.com/c/en/us/support/docs/switches/catalyst-2950-series-switches/41845-192.html
http://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst2950/software/release/12-1_22_ea11x/configuration/guide/scg/swtrbl.html
If no luck , the flash might be corrupted and requires a replacement.
Hope this helps
-Randy-

Cisco Catalyst 2950/2960/3750 Multicast Traffic Preference

Hello all,
we, as a student company act as an ISP for university dormitories. We would like to (if it's possible) deploy QoS to prefer multicast traffic over all other types of traffic.
Devices used in network:
Acces layer: Cisco Catalyst 2950, 12.1(22)EA14
Dristribution layer: Cisco Catalyst 2960G, 12.2(58)SE1
Core layer: Cisco Catalyst 3750G, 12.2(52)SE
Do you see any possibility to solve this with these devices? We have almost no experience with QoS, therefore any help would be greatly appreciated.
Thanks in advance.

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Posting
Hmm, I think it should be doable although the 2950s, if non-E variants, are especially weak in QoS features. I.e. those might create some issues.
With the 2960G and 3750G, you often will create problems when you enable QoS because QoS, by default, allocates its buffers resources for 4 egress queues per port rather than using all for 1 egress queue per port. However, this can be countered by QoS parameter tuning, but that takes some QoS expertize to match to your traffic and your overall QoS policy.

CATALYST 2950 SERIES - CLEAR OPT TABLE & DISABLE CASH

I have 2 cisco switches model - catalyst 2950 series, i recently had an network issue regarding an ip conflict with one of my member servers, after being on the phone with microsoft support for 6 days, we were able to resolve the problem by locating the correct mac address and clearing the "OPT table on the switches" by unplugging and replugging the power cord. In order to prevent this from happening again, Microsoft had asked me to contact cisco and ask the following questions, " Are these swiches managable via the gui? and we also need to make sure that the "Arp Cash is disabled on the switches" can anyone help in this matter? Thanks in advance.

Hi Arrowext289,
Thank you for your question. However the Small Business Support Community is limited to Cisco Small Business Products.
Your question below relates to a Cisco Classic Product which our community would not be able to help you with.
The best area for you to post your question would be at the Cisco NetPro forums switching area located here: https://supportforums.cisco.com/community/netpro/network-infrastructure/switching
Best regards,
Cindy
Cindy Toy
Small Business Community Manager
Customer Advocacy
Cisco Systems, Inc.
www.cisco.com/go/smallbizsupport

Catalyst 2950 Series - Monitoring Port

Do the catalyst 2950 series have a port that can be used to connect a device that is designed to monitor all traffic on the switch - we are looking to install Webspy to track network & internet usage. The Sentinal product would best be connected to the switch where it can record all traffic - it needs a monitor port or some such equivalent.

Hi,
The 2950 does indeed support that - the functionality is called Switch Port Analyzer (SPAN). The following link has details on how to configure it:
http://www.cisco.com/en/US/products/hw/switches/ps628/products_configuration_guide_chapter09186a00800d84c5.html
Hope that helps - pls rate the post if it does.
Paresh

Catalyst 2950 switch

Hello,
I am using a catalyst 2950 switch and connecting machines which have the operating system as TRU64 UNIX 5.1B (HP make DS25 servers) and WINDOWS XP Professional. The WINDOWS machines are getting connected on the network ( I am able to PING each other), but the UNIX machines are not getting connected on the network. The port LED on the switch is normal (GREEN). The netstat -r command on the UNIX machine shows default as defgw (/etc/routes) and the IP of defgw is defined in the /etc/hosts file. But there is actually no such gateway.
Please help me to get the UNIX machines connected on the network.
Thank You very Much
Best Regards
S R Vijayan

I wonder if the Windows machines are configured to use DHCP? If they are configured for DHCP and there is a DHCP server that is reachable, then it explains why the Windows machines have reachability to each other. If there is not a DHCP server available then the Windows machines are probably taking addresses in 169.254 (which is the default for Windows when it can not acquire from DHCP). This would also explain the ability of Windows machines to communicate with each other. Can the original poster clarify what IP addresses the Windows machines are using?
Then the question becomes how are the Unix machines configured? Are they supposed to use DHCP? Is so is the DHCP server reachable? If not how is the interface on the Unix box configured?
I also think that the suggestion about verifying whether the switch is configured with more than one VLAN is an excellent suggestion.
HTH
Rick

Catalyst 2950 interface problem

Hi, Sirs.
My Catalyst 2950-24 (IOS Ver 12.1.22EA7)stops communicate with an other switch port of a Catalyst 3512XL-EN after catalyst 2950 powered on 1 or 2 days.
th show interface shows that 2476498 ignored.
FastEthernet0/1 is up, line protocol is up (connected)
Hardware is Fast Ethernet, address is 000d.28c0.cf41 (bia 000d.28c0.cf41)
MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, 100Mb/s, media type is 100BaseTX
input flow-control is unsupported output flow-control is unsupported
ARP type: ARPA, ARP Timeout 04:00:00
Last input 3d19h, output 00:00:00, output hang never
Last clearing of "show interface" counters never
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 input rate 28000 bits/sec, 44 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
10033048 packets input, 806430104 bytes, 2476489 no buffer
Received 10031591 broadcasts (0 multicast)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 2476498 ignored
0 watchdog, 2217265 multicast, 0 pause input
0 input packets with dribble condition detected
357799 packets output, 25835259 bytes, 0 underruns
0 output errors, 0 collisions, 2 interface resets
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier, 0 PAUSE output
0 output buffer failures, 0 output buffers swapped out
what does is mean?

Hello,
what other switches do you have in your network ? If you have just the 2950 and the 3500, make sure that the 2950 is the root switch for all your VLANs, by configuring the global command:
spanning-tree vlan x priority 0
Also, check the log on the 2950 for the following message:
SCHAN ERROR INTR: SRC=6 DST=5 OPCODE=20 ERRCODE=5
If you see those, chances are that you have a faulty unit. Here is the relevant bug info:
CSCdv83336 Bug Details
Under certain level of traffic load, the (2950) switch will start logging the following messages on the console:
SCHAN ERROR INTR: SRC=6 DST=5 OPCODE=20 ERRCODE=5
and after a few seconds, the switch will stop passing any traffic. In some cases, the switch seemed still forwarding broadcast and multicast traffic, which will cause STP problem if the switch has redundant link and is not supposed to be the root for the VLAN, as both port will go forwarding.
The same error message has been identified in CSCdu87836.
An assessment of the impact
Unit stops passing any traffic.
WORKAROUND
Several units were returned by CISCO. The units were re-screened to the latest test program, and failed the SDRAM memory test.
Customer should RMA unit back to Cisco
Regards,
Nethelper

Catalyst 2950 trouble

I have been trying to get a Catalyst 2950 switch to work for over a week now. I received the switches with no box or packaging and I was told that there were no previous setup attempts on it. I tried performing the express setup but the lights on the server don't seem to behave the way the instructions explain. I also was never able to make a connection between the linux server I am trying to use to configure the switch and the switch. All i received was the switch and nothing else. I have an AC power cord and I also found an RJ45 - DB 9 adapter if needed. I have looked through alot of the manuals on the cisco main pages and nothing seems to be working or clicking. Please help!

Results of pinging from switch to linux box and switch to switch were both 0%.
Switch2>show arp
Protocol Address Age (min) Hardware Addr Type Interface
Internet 192.168.1.10 - 000a.8a7a.f280 ARPA Vlan1
No luck pinging switch from linux box again...
Arp -a Results
c358-hsrp102.xxxxx.com (xxx.xxx.102.1) at 00:00:0C:07:xx:xx [ether] on eth0
Route -n Results
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
192.168.1.0 0.0.0.0 255.255.255.0 U 0 0 0 eth1
xxx.xxx.102.0 0.0.0.0 255.255.254.0 U 0 0 0 eth0
169.254.0.0 0.0.0.0 255.255.0.0 U 0 0 0 eth1
0.0.0.0 148.174.102.1 0.0.0.0 UG 0 0 0 eth0
Ifconfig results
eth0 Link encap:Ethernet HWaddr 00:13:72:FD:xx:xx
inet addr:xxx.xxx.102.78 Bcast:148.174.103.255 Mask:255.255.254.0
inet6 addr: fe80::213:72ff:fefd:871d/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:38172 errors:0 dropped:0 overruns:0 frame:0
TX packets:16406 errors:0 dropped:0 overruns:0 carrier:0
collisions:224 txqueuelen:1000
RX bytes:8127476 (7.7 MiB) TX bytes:3941903 (3.7 MiB)
Interrupt:169
eth1 Link encap:Ethernet HWaddr 00:13:72:FD:87:1E
inet addr:192.168.1.1 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::213:72ff:fefd:871e/64 Scope:Link
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
Interrupt:225
eth2 Link encap:Ethernet HWaddr 00:04:23:CD:B5:6A
BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
Base address:0xecc0 Memory:fe9e0000-fea00000
eth3 Link encap:Ethernet HWaddr 00:04:23:CD:B5:6B
BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
Base address:0xec80 Memory:fe9c0000-fe9e0000
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:6376 errors:0 dropped:0 overruns:0 frame:0
TX packets:6376 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:4647441 (4.4 MiB) TX bytes:4647441 (4.4 MiB)
sit0 Link encap:IPv6-in-IPv4
NOARP MTU:1480 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
Lot of info there you are only allowed 3 attachments thats why i put it all in here and attached the last 2 hope you can find everything ok.

Catalyst 2950 Protocol

Hi,
We received this question from our CSC Twitter community.
Miles312
@cisco_support Am a Netacad student; was working with a Catalyst 2950, and ping gave protocol not running error. How can I check protocols?

Had Layer 3 up, as we could test that with other devices, and had a VLAN set, as management vlan and had native vlan through it with IP set.
Even pinging from the switch to another directly connected switch with the management vlan address (same subnet, layer 3 unnecessary) gave me that error.
However, two switches on either side of the one giving me this issue could ping one another, and the PC's connected to this switch could ping to one another, and to the management interfaces through layer 3.
See my bafflement?
Thanks for the reply, though! Will check the procs.

SNMP on Catalyst 2950 switch - possible?

How can I add SNMP to my Catalyst 2950 switch? and what will this give me with regards to network monitoring etc. A lot of my networks go through this device and I what to get stats on port etc. I really hope you can help here.

Hi Chandru,
Here's what you should do. Firstly, go to the following site which will give you a list of MIBs supported on the 2950:
http://www.cisco.com/en/US/products/hw/switches/ps628/products_configuration_guide_chapter09186a00800d84cc.html
Then, open up the Cisco SNMP Object Navigator at:
http://tools.cisco.com/Support/SNMP/do/BrowseOID.do?local=en
Within that, click on 'View and Download MIBs' and then select the MIBs you are interested in to download/view them.
As an example, you can get counters on memory pools from the CISCO-MEMORY-POOL-MIB
Hope that helps - pls rate the post if it does.
Regards,
Paresh.

How to catch Posting error in File to IDoc Scenario?

I have successfully completed File to IDoc Scenario. Now I am interested in catching posting error. i.e., if mapping goes well and when IDoc is being sent to Recipient system then if any posting error is encountered, then a mail should go to a recipient.
Can anybody suggest the solution.
Regards,
Suraj Kumar

Hi Suraj,
this can be done by triggerring an alert to the recipient.chk out these links to trigger a alert
/people/sap.user72/blog/2005/01/14/alert-management--improving-monitoring-of-your-landscape
/people/sap.user72/blog/2005/01/14/alert-management--improving-monitoring-of-your-landscape
regards
jithesh

GR/IR Posting Error CKMLGRIR025 - Purchase Order History Inconsistent

Hi Everyone.
We currently have a posting in our GRIR for a Feright Condition Value against a Purchase Order which gets the above error when trying to post in MR11.
The Diagnosis of the error reads:
"The purchase order history contains differences between the goods receipt and invoice receipts/Account maintenance for the order item in the field Difference Quantitiy (= 43.804 TO) and Difference Value (= -342.77)
The purchase order history for this tiem is inconsistent"
When looking at this Freight Condition information in the Purchase Order I can not see why this item has resulted in this error in MR11.
Has anyone else seen this error come through in their system, and do you have any ideas on how to fix this.
Thanks
Hayley

We are experiencing the same issue with the GRIR Posting Error CKMLGRIR025 - puchase order history inconsistent. The actual message that we receive is Puchase Order history already inconsistent -->Quantity 1.00 EA Value 0.65-USD.
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Fi posting error

Hi SAP gurus,
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hi
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sree

MR11 GR/IR Posting Error - PO History Inconsistent - error message M8278

Dear experts,
We have the problem as described in SAP note 708649. Error CKMLGRIR025 - Purchase Order History Inconsistent
This has also been described in this thread
Re: GR/IR Posting Error CKMLGRIR025 - Purchase Order History Inconsistent
We also have the issue on posting an invoice "default qty & value 0" in MIRO, receiving error M8278 "You are not allowed to have zero lines".
However, so far we are not able to correct this eg do not know how to continue to clear the GR/IR
Any help or hints on this matter would be appreciated

Hi,
please note that the error message M8 278 is only issued if there is
zero amount in ALL document lines.
This means that you can post MM-documents with zero lines. But only if
there are other lines with amount > 0. The reason for this system
behaviour is, that every time a MM-Invoice is posted, an FI-Document is
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I hope I could help you further
Best regards
Erika

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Hello!
Please, could you help me? Is it possible to install ISE on Catalyst 2950? In Component Compatibility Guide
http://www.cisco.com/en/US/docs/security/ise/1.0.4/compatibility/ise104_sdt.html
Catalyst 2950 only support 802.1X and VLAN.
At first I need to know about VLAN change(from resticted to corporate). Is Catalyst 2950 support it?
Thaks for help!

this would let both user and machine authenticate. for"5434Endpoint conducted several failed authentications of the same scenario" check Suppress Anomalous Clients option. This issue comes in to picture when endpoint attempts a couple of failed authentications and if Suppress Anomalous Clients option with Reject Requests After Detection is enabled then ISE Policy nodes protect themselves from overwhelming numbers of authentication requests by sending an immediate reject for suppressed clients as opposed to processing all the steps in a normal authentication. So if that user did some authentication failure, he will be locked for 1 hours (bydefault).

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