Cisco Catalyst 2950 - GigE Switches With 64bit IF-MIB SNMP Counters?
Oct 18, 2011
which models of HP ProCurve or Dell PowerConnect support 64-bit IF-MIB counters, or for that matter any other manufacturer (Zyxel?) (snmpv2 or v3, OID .1.3.6.1.2.1.31.1.1.1.6)I believe pretty much any Cisco Catalyst above a 2950 do, however don't believe any of the SG series do. I realize I could pick up a 2960G for $1500-2k and be good to go, but I forsee a larger switch purchase in the future, but still could use a switch in the meantime that was able to allow accurate monitoring of closet uplink bandwidth?
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May 23, 2011
I have a question about SNMP OIDs for the command "show counters interface intx/y delta" on Catalyst6500. The customer wants to create graphs for the following values:Overruns, qos0Outlost, InErrors, OutErrors, InDiscards, OutDiscards etc..Is possible to get these values using SNMP?
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May 24, 2013
I've got an SG300-10 connected back to back (trunked) with a Cisco 3560X switch, across a fibre link and am seeing some big inconsistencies in terms of unicast data transferred across the ports between them.
During a night time window of 4am - 6am I run backups which involves a large copy of files, that almost saturates a GigE link - we can see from the 3560X end that the link is running at a bit over 800MBit/sec of throughput, sustained. The duration of this transfer is consistent with the size of the files being transferred (ie just over an hour, and is what I'd expect for a data transfer of about that amount). Back-of-the-envelope calculations indicate that the 3560X is measuring this data throughput correctly.
However on the SG300 end of the link, which is also being polled by the same application (Cacti), I'm observing spikey counts of only around 20MBit/sec during that window. These counters are very obviously incorrect - there's a huge amount more data moving across the port than that. The incorrect calculations are showing on both the trunk port out of the SG300 (uplink) as well as the interface where the NAS is connected in (which is an access port).
Cacti is polling the OID: .1.3.6.1.2.1.2.2.1.16.57 which translates to IF-MIB::ifOutOctets.57 = Counter32.I'm running version 1.3.0.62 but this problem is not new to this release - previous releases and 1.2 based releases also had this problem.
It looks like multicast traffic may be being counted correctly (that's only a suspicion though), however what I am certain of is that there is a very large discrepancy with the unicast traffic counts.Is this OID the correct one to be using for this switch?
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May 16, 2013
We have a catalyst 2950 switch running:
IOS (tm) C2950 Software (C2950-I6K2L2Q4-M), Version 12.1(22)EA6, RELEASE SOFTWARE (fc1)
This release doesnt have the snmp-server enable traps errdisable command.
Where to look on the cisco site for the next available release for me that would have this command in place?
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May 14, 2012
have setup a small lab as per CBTNuggets. Everything was going well until I introduced a second switch to create a trunk. Now I cannot ping between my two switches. Both show operational mode as down:
SWITCH1#show interfaces f0/12 switchport
Name: Fa0/12
Switchport: Enabled
Administrative Mode: trunk
Operational Mode: down
Administrative Trunking Encapsulation: dot1q
[code]....
I have tried to allow all vlans or vlan 1 specifically and the output of the above doesn't seem to change. I am wondering if there is something in the config-register that is preventing trunking, but I don't really know enough yet!
The output of my second switch is identical to this one, the only difference is that I have it configured as a vtp client.
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Sep 7, 2012
I am attempting to monitor bandwidth utilization of the WAN port for the RV180 via SNMP and I am getting strange results. If a 256MB file is transferred from a remote server (without compression), the ifInOctets counter doesn't increment by anything resembling 256MB:
$ snmpget -v2c -c public 192.168.1.1 IF-MIB::ifInOctets.5 IF-MIB::ifOutOctets.5
IF-MIB::ifInOctets.5 = Counter32: 365402138
IF-MIB::ifOutOctets.5 = Counter32: 32610053
[Code].....
I'm reasonably certain that the .5 interface is the WAN port based on the value of ipAdEntIfIndex.X.X.X.X, but even if that were not the case, none of the other interfaces increment by a value close to the amount of data transfered. SNMP monitoring of a WAP121 on the same subnet returns expected results. I can only assume that SNMP on the RV180 is completely broken.
The router has the latest firmware available (1.0.1.9). There is only one network connection and the RV180 is the default gateway for all internal hosts.
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Dec 5, 2012
Ive got a 494810ge switch, and this parameters are important for me:
sh int gi 1/4 counters detail
Port InBytes InUcastPkts InMcastPkts InBcastPkts
Gi1/4 252819467437788 173264735013 10827 760
Port OutBytes OutUcastPkts OutMcastPkts OutBcastPkts
Gi1/4 36657317030233 280590958051 5248439 5443194
Port InPkts 64 OutPkts 64 InPkts 65-127 OutPkts 65-127
Gi1/4 558420918 205564441592 2627477631 60865368994
[code]....
Some parameters i can get by snmp (InBytes,InUcastPkts,InMcastPkts, and so on from out), but how can i take other parameters? I would like to do it by snmp but i did not find proper oids. Now I making a sheme like this: eem every 90 seconds takes this info and writes it down to file into nvram and then send it by scp to server, where file is processed by monitoring system script. It is not very good, cause cisco system cpu sometimes spikes of this and i dont know a resourse of nvram, how much times can i write to it?
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Jun 12, 2012
Any chance of one or preferably both of these before I flash the router to a more competent firmware?Rather ridiculous that there's no interface counters and no SNMP server. I prefer keeping stock firmware where possible but I need this functionality, it really isn't a big ask.That said I have an E4200 v1, which already looks like abandonware given it's been 6 months since the last firmware update - not amused and no intention of swapping a high performance router for one that sacrifices performance for better NAS functionality.
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Dec 27, 2010
I just started configuring my cisco catalyst 2950 switch. Basically im preparing for my CCENT exams my basic configuration is as follows.
-My Laptop is connected to the console port
-I'm connected to the internet via my wireless
-I'm connected to the switch port via my NIC card
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Sep 13, 2012
I have a above said switch at my remote office (600KM) which is connected with L2 Point to Point leased line. Both the ends I have Cisco 3950 catalyst switches with Vlans configured at both the ends. Now, for obvious reasons I should remove the other end 3950 switch and replace with Cisco 2950 switch. The other end 3950 is having 4 Vlans configured on 4 ports. Now my requirement is, I should configure 3 Vlans (one for P2P, one for 10 Desktops and one for to bring traffic from other network).
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Oct 29, 2011
I bought refurbished Catalyst 2950. I followed all steps(even ip address and subnetmask and ..etc) guided in [URL] no thing happen, my computer doesn't connect internet. I guess switch has no routing.. Before bought that, i thought it is plug and play type. And now having some serious issue which i have to configure via telnet and/or ssh.
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Nov 15, 2005
My switches is still operating but when i ping the switch, there isn't any reply. No icmp reply from catalyst 2950 switch
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Aug 3, 2011
Configuring a network with Rapid Spanning Tree Protocol. There's a combination of Cisco 3650s, 2950 and 2960 switches. It is a flat Layer 2 network with a single VLAN. CLI configuration?
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Aug 30, 2012
I have a customers Catalsyt 2950 switch come in for the configuration to be cleaned to factoy default, using the link below removed the customers banner and login information whitch worked
[URL]
When i restart the switch and enter Enable mode I'm prompted with the password which i used when following the link above,
I want to remove all passwords so when the switch is redeployed to the next site who ever the engineer is that is going to be reconfiguring the switch is able to access privlage mode with out the password promt.
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Aug 12, 2012
I'm having trouble with a Cisco Catalyst 2950 Series Switch where by I'm following the procedure from Cisco's web site to remove the Banner and login information, url..
Each command is being accepted by the switch from following the information given within the help sheet above,the problem i have now is when i turn the power off then turn the switch back on I'm still getting the banner and login information even though i have follwed Cisco's help correctly.
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Jun 7, 2012
I am not able to successfully accomplish the password reset function. This 2950 does not respond to the mode button held down at power up or to sending a briak. I have tried both several times and the switch continues to fully boot. [URL]
C2950 Boot Loader (C2950-HBOOT-M) Version 12.1(11r)EA1, RELEASE SOFTWARE (fc1)Compiled Mon 22-Jul-02 17:18 by antoninoWS-C2950G-48-EI starting...Base ethernet MAC Address: 00:0b:fd:a1:4f:80Xmodem file system is available.Initializing
[Code].....
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Apr 1, 2013
Using Network Assistant in XP, plugged ethernet cable to first front port and keep getting "Failed to get Default Gateway. Check your security settings to make sure the current Java Virtual Machine is not prevented from running commands.", I have tried reducing secruity to nothing but I still get the same problem.
I also have an official cisco console cable and tried that, but Hyperterminal just does not pick it up when plugged in. I have left the IP dynamic, turned off all netowork adapters apart from ethernet, set the baud rate etc... correctly, still no joy.
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Feb 14, 2013
can i configure virtual circuits on cisco layer 2 switch catalyst 2950 ?
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May 23, 2011
I'm a C# programmer and as part of my software I need to monitor some Cisco Catalyst 3560V2 24 switches using SNMP (By reading MIB/S data).Apparently this switch supports more than 50 different MIBs.My question is which MIB/MIBS contains general health data (parameters) that may determine if the switch is OK, Degraded or Malfunctioned.
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Dec 10, 2012
I would like to be able to query the dot1dStpPortState obect on the Catalyst 2960-S on our LAN . Im running firmware c2960s-universalk9-mz.122-55.SE2.bin and according to the Cisco SNMP Object Navigator the object is supported (via the BRIDGE-MIB).However when i query using snmpwalk from my workstation :snmpwalk -v 2c -c bic-zua-ro 10.u.y.x 1.3.6.1.2.1.17.2.15.1.3 I receive and error .SNMPv2-SMI::mib-2.17.2.15.1.3 = No Such Instance currently exists at this OID For the sake of comparison, querying our 4700 :snmpwalk -v 2c -c bic-zua-ro 10.u.y.x 1.3.6.1.2.1.17.2.15.1.3 returns (as expected, cropped)
SNMPv2-SMI::mib-2.17.2.15.1.3.1 = INTEGER: 5
SNMPv2-SMI::mib-2.17.2.15.1.3.3 = INTEGER: 5
SNMPv2-SMI::mib-2.17.2.15.1.3.40 = INTEGER: 5
SNMPv2-SMI::mib-2.17.2.15.1.3.67 = INTEGER: 5
SNMPv2-SMI::mib-2.17.2.15.1.3.104 = INTEGER: 5
SNMPv2-SMI::mib-2.17.2.15.1.3.257 = INTEGER: 5
SNMPv2-SMI::mib-2.17.2.15.1.3.258 = INTEGER: 5
SNMPv2-SMI::mib-2.17.2.15.1.3.259 = INTEGER: 5
Is there some special configuration i need to do on our 2960's. The only snmp related settings i can see in the running config is snmp-server community. In this case :
snmp-server community bic-zua-ro RO
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Jun 4, 2013
Are there any best practices for preventative maintenance on Catalyst Chassis switches. Looking to build a PMI schedule for a customer. Or is there evidence not to perform it at all. Things like re-seating line cards, cleaning fan exhausts, etc.
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May 22, 2012
I'm setting up an SNMP poller to retrieve the ARP table (ipNetToMediaPhysAddress) from my SF300 switches. I can retrieve the table from SF300-24P and SF300-48P switches running Firmware Version 1.0.0.27, but get garbage for the MAC address when retrieving that same table on the same model switches running Firmware Version 1.1.1.8. Is there an outstanding defect on this code level? How can I retrieve the table showing the IP address to MAC address mappings?
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Aug 7, 2011
Any snmpset commands to add, modify and delete vlan table entries on SG300-10 switches? I checked url... however this information is apparently only valid for catalysts. The latest firmware is installed and the provided MIB files are used.
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Mar 2, 2012
I have NM-AIR-WLC6-K9 in Cisco 2821. Is there opprotunity to retreive configuration via SNMP as from Cisco Catalyst 2960?
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Jul 20, 2011
I recently picked up a Catalyst 2960G and am trying to get SNMP management working over IPv6. I have the IP Address set to the local link, and can successfully ping and telnet to the switch (so the network can get traffic to and from the switch). However, SNMP packets just seem to disappear. I am running WireShark on my machine, and I see the packets go out to the proper IP, but nothing comes back. When I check "sho ipv6 traffic", I can see where there are UDP packets that are received, but, again, none going out. Also, when I run "sho snmp", all of the packet counts are 0.
Here are some relavant snipets from my "sho run":
interface Vlan1
no ip address
no ip route-cache
ipv6 enable
[code]....
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Apr 12, 2012
Is it possible to modify conf with snmp on ace module like others 6500 catalyst ?Is ace answer to snmpset cmds ?
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Mar 28, 2012
I have a Catalyst Switch 6000. Inoticed that after the execution of the job inventory in LMS, and after the snmp queries reached the equipement, the cpu value reached 98-99 % due to the process : PDU DISPATCHER (what’s it ?)
I have also a script running in the switch to observe the differents logs. For exemple, when high cpu is obtained, the message bellow appear :
« %SNMP-3-INPUT_QFULL_ERR: Packet dropped due to input
« %SNMP-3-INPUT_QFULL_ERR: Packet dropped due to input
« %SNMP-3-INPUT_QFULL_ERR: Packet dropped due to input
....
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Jan 2, 2013
Is it possible to run VTP V3 on 2950 and 2960 switches. If so what version of IOS supports V3? Our 2960s are running 12.2(25r)SEE1, and 2950s are running 12.1(22)EA4a. Neither of which supports v3.
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Nov 13, 2012
What is the difference between the 2950 and 2950c switches? I tried finding it on the feature navigator but I couldn't. And I wasn't able to get anything from the Cisco website either. (I didn't really look through the long PDFs, I'm sure there is a more simple way to find the answer to this that I'm not aware of.)
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Dec 7, 2011
I have a etherchannel defined between 2 L2 switches using LACP as shown below. The etherchannel works fine, however when I hard code speed/duplex on both ends the etherchannel fails. What is causing this behaviour?
SW02:
interface Port-channel5
interface GigabitEthernet1/0/1
switchport mode trunk
[Code]....
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Apr 25, 2013
I have a server windows 2008 that I would like to have a nic teaming configuration, the server has two nics, each nic is connected to a different switch. One is connected to cisco 2960 and the other is connected to cisco 2950. I have read here in forums about nic teaming but using the same switch. I have not found using different switch. Is this possible?
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May 24, 2006
I am trying to implement IP SLA. Can I implement it on layer2 switches?
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Feb 4, 2013
I'm having some serious sound problem with some 2950 Cisco switches that I have in my CCNA lab these switches sound like a jet I've gone in and made sure the fans are clean and I even replaced one they still are too loud. So I have a few options I can run them without a fan which I really don't want to do but I want to look at two other options. The first option would be to put a heat sink on the chip that's producing heat I also thought about cutting a whole in the top and mounting a 120mm fan.
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