I have a Cisco 2960G switch and one of the ports was configured with srr-queue bandwidth limit 90 - I need to remove this bandwidth limiting from this interface. [code]
View 2 RepliesI have a few 24-port Cisco 2960G Switches (model WS-C2960G-24TC-L) that I upgraded to IOS Release 15.0(1)SE2 using the web interface. I am now trying to upgrade those switches with the new release, 15.0(1)SE3, however I seem unable to do it, I have tried this on two switches so far, both have been upgraded to SE2 just a couple months ago or so, and both of them will not accept the SE3 upgrade, basically, I can select the tar file in the web browser and click "Upgrade" but when I do the status never changes from "Loading the tar file to the switch". I have tried multiple times from multiple computers using many different web browsers, including IE6 which is listed as supported. I have let it go for as long as 1.5 hours but to no avail.I also had a few idential switches here that had never been upgarded to SE2, I have had no problems loading SE3 onto them using the same method so it would seem that the tar file I have downloaded is valid.
View 5 Replies View RelatedI recently changed jobs and at the new location we are primarily running Catalyst 2960G series switches with the exception of one 3750. All of the switches are setup in a cluster with the 3750 being the cluster master. My question is what is the benefit of switch clustering? The entire network seems to be a bit over engineered for the our needs and I am hoping to scale it back a bit. For example, the the network was setup with VOIP QoS when there were no plans to even use VOIP. Also what procedures would I want to follow to disable the cluster to avoid any major outages? Assuming there is no real need for a cluster.
View 1 Replies View RelatedI'm trying to decide what switch to use as a core for 500 users. I'm currently looking at either 2 x 3750X stacks or 2 x 4500s with dual SUPs and PSUs, both options will provide the number of switchports required without the need for additonal access layer swiches. Which switch option is best to go for here? All of our services will be located in our data centre which will be connected using 2 1000Mbps MPLS circuits. I wont need any advanced L3 features and we are not likley to scale over 450 users. Also is it ok to use the dual switch stacks or chassis to provide the collapsed core/access layer or is it best to have a dedicated core (using one of the above options with less switchports) and having a dedicated accesss layer using 2960Gs for example. Our structured cabling terminates in a single comms room so we wont need to distribute switches throughout the office.
View 3 Replies View Relatedi had made a software upgarde on the switch 2960G series have no any passwords, when I fished the upgrade process after rebooting the device i found it need a UserPw to access device manager. i tried to use the default PW "cisco" but it dosen't work too.. after that i tried the password recovery process to rest the PW, but noway, but now i have addition problem, when i try the cmd orders "flash_init , load_helper , dir flash" to beginning the password recovery process it shows the following:
The system has been interrupted prior to initializing theflash filesystem. The following commands will initializethe flash filesystem, and finish loading the operatingsystem software:
flash_init boot
switch: flash_initInitializing Flash...flashfs[0]: 554 files, 19 directoriesflashfs[0]: 0 orphaned files, 0 orphaned directoriesflashfs[0]: Total bytes: 32514048flashfs[0]: Bytes used: 15540224flashfs[0]: Bytes available: 16973824flashfs[0]: flashfs fsck took 10 seconds....done Initializing Flash.
switch: load_helperUnknown cmd: load_helper
switch: load_helperUnknown cmd: load_helper
switch: load_helperUnknown cmd: load_helper
[code]....
After that the problem updated
because I tried to install the IOS by Xmodem to reload the missing flash file.After finsh the TAR file loading and reboot the switch.......the LEDs of mode and Giga ports are lighted amber and not blinking, i tried many times to follow the steps to connect the switch by the emulator and consol cable by holding mode button and connecting the power cable at same time the device does not work, the switch now still not blinking, now i try to read and understand how can i remove the corrupted files and install a new IOS for this switch?What shall i do.
I have used all the ports on my 24 port 2960G and need to extend it with another 2960G. These switches do not have trunk ports so what is the best way to stack them and have all 5 vlans on both switches.Can I just use a port Channel trunk etherchannel ?
View 7 Replies View RelatedI have a requirement to monitor downstream data feed from a remote site and feed it to multiple destination devices for recording. The source data will be fed into a port on a Cisco 2960G switch then, using the monitor function, be forwarded to multiple interfaces. This works fine for normal Etherent II traffic. We tried a test using a device that generates IEEE 802.3 Raw packets ('type' field is used as a 'length' field) but found that while the traffic appeared to be accepted by the input port with no errors it was not forwarded to the destination ports, even when using the monitor function. I did try the 'encapsulation replicate' feature with no luck. It does not forward these packets even if I set all the ports into a common VLAN and let the switch just perform a normal switch function (non monitor).
if it is possible to get the IEEE 802.3 raw packets to pass through the switch and if it is, how to or what I need to do to make it work?
I am unable to access a series of switches connected together through a management vlan. I receive the message "The server xx.xx.xx.xx at level_15_access requires a username and password." Entering the username and password fails and the same username and password message returns. I am able to ssh into the switch with the username and password that fails trying to access the switch with the browser.
How can I check the username and password for access with the browser?
I am trying to monitor switch performance. Is there a good way to monitor switch performance with the command line interface?
I just got a Cisco 2960G 24-port gigabit switch so that our HP servers can have a Gigabit connection to the network. I moved 2 servers to it (HP Proliant DL380's) but they don't actually seem to be able to achieve even close to 1000Gbps. I ran same some LAN bandwidth tests and it was showing only around 200-300 Mbps between all of them. I also ran a network stress test utility, LAN Tornado, and it was showing packet loss as high as 60% when on gigabit, and only .07% when on 100Mbps.
-Both the NIC's and the switch ports are set to 1000/Full
-Currently using Cat5e cabling no more than 25Ft in length (I know Cat6 would be better but Cat5e is supposed to support Gigabit)
-All servers are on the same VLAN
Here are the port statistics when running just a stress test @ 10Mbps that had a 45% packet loss. What's odd though is when I set the servers and switches to 100Mbps, I get less than 1% packet loss.
GigabitEthernet1/0/16 is up, line protocol is up (connected)
Hardware is Gigabit Ethernet, address is 203a.07ff.7e90 (bia 203a.07ff.7e90)
MTU 9000 bytes, BW 1000000 Kbit/sec, DLY 10 usec,
[Code].....
I am trying to implement priority queuing (LLQ) on a pair of 10GE links between a 4507 with Sup6E and a 4948 which are configured as an etherchannel. I am unable to configure a priority queue on the 4507. I am running into the following issues:
I want to have a priority queue for voice traffic and specify minimum bandwidth for a critical application. If I configure a class with the priority command it will not let me use the bandwidth command on another class unless the priority class is policed. If I try it without the police command I get the message "bandwidth kbps/percent command cannot co-exist with strict priority in the same policy-map ". If I add a police statement to the priority class then I don't get this error.
When I try to apply the resulting service-policy to the physical interface it says "% A service-policy with non-queuing actions should be attached to the port-channel associated with this physical port" and does not add the command to the config.
If I try to associate the same policy-map to the port-channel rather than the physical interface it says "% A service-policy with queuing actions can be attached in output direction only on physical ports" and does not add the command to the config.
All of the other interfaces on the 4500 are working OK. The trunks have auto qos voip trust configured and access ports are marking the critical application traffic.
The 4507 is running 12.2(44)SG1 EnterpriseK9. I don't have the luxury to upgrade blindly to fix the problem unless I can identify a specific bug that is causing the problem.
In our premises i want to configure cisco 2960G 24 port switch using hyper terminal commands.
View 1 Replies View RelatedI have several SF300 switches deployed (SF300-08, SF300-24P). They are connected to IP Telephones (NEC) which communicate with the switch for auto voice VLAN on LLDP. The problem I am experiencing is that periodically the IP telephones are rebooted by the telephone vendor and when they do the switch puts that port into "Locked" port security mode and discards all traffic to the port. The IP telephones of course do not work. In other switch models, I have seen the ability to enable / disable port security switch wide or on a port by port basis. This model does not appear to have this feature. How to disable or why the phones would cause the switch ports to "lock"? There is usually one PC attached to each phone.
View 1 Replies View RelatedI have upgraded a couple of 2960G switches to 12.2.52SE and now discovered that TCP port 4786 is open on the switches.
I have looked in the document{URL}, trying to find a way to disable this function/port, but didn't find anything useful. Any way to disable this function/port?
In my ongoing project i need to monitor cisco 3750-X port status (uplink/downlink) i.e. whenever there is some problem at a specific port. I need to monitor it through an OPC server and right now what i am doing is as follows: i am using Kepserver and i have added SNMP driver in it for that purpose i am not a networking expert but what i have learnt till now is that SNMP agent (that resides in switch) delivers the status of MIBs to SNMP manager ( which in my case is kepserver (opc server)) for the above purpose i am adding IF-MIB to monitor OID 1.3.6.1.2.1.2.2.1.8 (which shows port statuses) but when i add that in OPC server then it indicated that this OID is not available in the Switch ( it might be disabled) so i need to ask if there is any way to enable OID's in a switch,
View 0 Replies View RelatedI`m looking to automate some functions in a web application.Functions like enable/disable interfaces on a Cisco 3550 switch.
View 5 Replies View RelatedI am cascading one new switch 3750G (int Gi1/0/1) with an existing 3750G (int fa1/0/26) switch.. But the interface fa1/0/26 goes in err-disable state even after NO SH.. also i have diable Spanning treebpdu guard and disable spanning tree portfast. But still the issue is not resolved.
View 6 Replies View RelatedAsk this question, if someone came across a 6513, one of the RJ45 ports are constantly falling.The question is how to disable logging on a specific portno logging event link-status does not work.
View 1 Replies View RelatedI am testing 2960 24 S with storm-control and Errdisable Port timer interval 60s , connected HUB on fa0/17 to make traffic / loop.After Strom Control detection the interface goes down thats ok after 60s they will try to recover the interface and going up although the loop is still there.For my understanding if the interface detect still a loop on that interface they will disable the port again for 60s and will check again. [code]
View 7 Replies View RelatedWe have a number of 3750 stacks used as access layer switches connecting Siemens VOIP phones and then a PC that connects to the phone.
For example if I plug PC A to the phone that connects to port 13 I pick up an IP addressand all works as predicted now if I plug in PC A to any other VOIP phone that connect to another port on the same switch it goes in error disable state ITs like the switch is holding my PC mac address and locks it down with the port which in my case is Gi2/0/13.
interface GigabitEthernet2/0/13
switchport access vlan 726
switchport mode access
[Code].....
I have stacked WS-C3750E-24PD with Ten Gigabit Ethernet ports configured under ether-channel. It has c3750e-universalk9-mz.122-55.SE1.bin IOS installed on it. One of the Ten Gigabit Ethernet ports, goes to err-disable mode with following errors on that specific ports.
%SFF8472-5-THRESHOLD_VIOLATION: Te1/0/2: Tx power low alarm; Operating value: -31.0 dBm, Threshold value: -9.0 dBm.
%SFF8472-5-THRESHOLD_VIOLATION: Te1/0/2: Tx power low alarm; Operating value: -31.0 dBm, Threshold value: -9.0 dBm. (DROmx-1-1)
I have gone through some of CSC forums like {URL}. The workaround is to "Remove the X2 or SFP from the inactive up link port" which is not in my case.
Disable wrr-queue cos-map on 6509 interface?.I have the following config on one of the interfaces that i would like to remove:
[code]...
In our company 3nos Cisco 3750 (WS-C3750-48P) access switch in stake mode. All port are assigned with voice and data Vlan also Avaya IP connected with this switches. From last few days tow port 2/0/7 and 2/0/8 is showing amber and status is showing err-disable. At Avaya end it is showing a message “ETHERNET WAITING” in phone dispaly. I try to connect laptop directly with these ports but it is showing "Cross Connectivity". [code]
View 4 Replies View RelatedI have routing enabled, can build a static route, and go back and see it (sh ip route), but I don't know how to get the route right. I have one host (Host A) on Vlan 20 w/192.168.20.2/24 dg 192.168.20.11 (the vlan ip) and (Host B) on Vlan 30 w/192.168.30.2/24 dg 192.168.30.11 (the vlan ip). I can't ping them from any host man. I can ping the Vlans but not the host.
View 19 Replies View RelatedI am looking to simply monitor Port-Security , Error-Disable and HSRP. I would like to receive an email when any of these are triggered.
Port Security - Port Is shut down
Err-Disable - Port goes into err-disable state (securedown)
HSRP - When HSRP standyby changes are detected
I need to receive emails with any of the able are triggered. What is the easiest way to do this? I know SNMP is the main option but I have never worked with SNMP and dont understand it too much.
Equipment:
2x Cisco 1921 series routers
3x Cisco 2960 POE switches stacked
On the supervisor card of a cisco 6500 series, according to the following link, [URL] it only has 2 uplink ports on the card. Would I be correct in assuming that I only have those to ports that I can configure IP addresses on?
The cisco that is being devlivere is coming with a 48 port switch and 24 port fibre switch. Could I change any of those ports into a router port and configure IP addresses on those?
The supervisor card is a ws-sup-720-3b the 48 port switch is a ws-x6748-ge-tx the 24 port fibre switch is ws-x6724-sfp
I'm fairly new to Cisco products am in the process of developing my network knowledge on a deeper level. I have a 3825 with a HWIC-4ESW and I'm struggling to fully understand how the two "see" each other. I've setup a V LAN with a layer 3 address on the HWIC and added the switch ports to it. This seemed to allow devices connected to the switch ports to talk to the built-in router ports. I thought this was all making sense until i applied an access-list to the router port. It's a simple ACL i'm just using for testing and the only thing it does is blocks telnet from anywhere. I know the ACL is setup properly because if I connect a device directly to the router port i cannot telnet to the port. However, if i connect a device to one of the switch ports, i am able to telnet to the router port successfully.
It seems that I'm missing something with how traffic flows from the switch port to the router ports and how the two "see" each other.
what is the use of no switch port command in L3 switch?
View 7 Replies View RelatedI was looking for a way to connect an AUX port from a 1700 router to a 6500 switch module console port, to see the output of the Switch's on the 1700 router, in case there is a network downtime, I could see what's going on in the switch, what cable should I use ? Also, is there is any kind of documentation for this type of config what have I seen is very few info.
View 2 Replies View RelatedWe have a Cisco switch in each office and every now and then the port that has the D-Link Wireless AP (DAP-1522) connected to it goes to err-disable state. Actually sometimes even a regular port that has a cisco phone connected may also go to err-disable state (less often). So I have to telnet into the switch and issue shut and no shut command on that interface to get it back to life, then it works for a few days or weeks until it happens again. Any suitable configuraiton for that interface, that would prevent that from happening or a workaround ?
Here's the info:
Model: cisco WS-C3560-24PS and cisco WS-C3560-48PS
Image:c3560-ipbase-mz.122-35.SE5.bin
This is the log from one switch:
31w5d: %PM-4-ERR_DISABLE: psecure-violation error detected on Fa0/2, putting Fa0/2 in err-disable state
31w5d: %PORT_SECURITY-2-PSECURE_VIOLATION: Security violation occurred, caused by MAC address 74e2.f592.f7f2 on port FastEthernet0/2.
31w5d: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/2, changed state to down
And from another, which is almost the same:
5d10h: %PM-4-ERR_DISABLE: psecure-violation error detected on Fa0/3, putting Fa0/3 in err-disable state
5d10h: %PORT_SECURITY-2-PSECURE_VIOLATION: Security violation occurred, caused by MAC address d8a2.5e31.2cf6 on port FastEthernet0/3.
5d10h: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/3, changed state to down
5d10h: %LINK-3-UPDOWN: Interface FastEthernet0/3, changed state to down
Here's the configuration of fe interfaces (they are all alike):
interface FastEthernet0/2
description Voice & Data Combo Port
switchport access vlan 11
switchport mode access
switchport voice vlan 15
[code]....
After reboot WLC , the switch port was err-disable , the cause is link flap after we reboot 3 times , the switch port link flap err-disable every time? We don't know why the WLC rebboot will cause it , it just normal action on device the WLC version is 7.4.100.0 link switch with access port , no port channel , no portfast.
View 11 Replies View Relatedone of our switches (WS-C2960G-24TC-L). When I try to turn on the lanbase-routing feature using sdm prefer lanbase-routing, it gives me an error (Unknown command). I tried "sdm prefer ?", and lanbase-routing wasn't there (only qos, default and dual IPv4 & IPv6). The switch is running on image C2960-LANBASEK9-M version 12.2(50)SE5.We have another switch (WS-C2960S-24TS-L), running on image C2960S-UNIVERSALK9-M version 12.2(55)SE5, and I can enable lanbase-routing feature. If I upgrade the WS-C2960G-24TC-L to version 12.2(55)SE5, will it be able to do inter-vlan routing? Or is the switch itself totally limited to VLAN configuration only?
View 4 Replies View RelatedI need to trust and prioritize voip traffic on my 6509 core
at the moment I have mls qos trust dscp on the interface
Is this enough? or do I need to enable the priority queue? how do i do this ? as it doesnt accept the priority queue out command like a normal switch
i have a cisco catalyst 2960g and for some reason out of the blue, some interfaces go down and then up. It started doing it after a power cycle.
View 1 Replies View Related