Cisco command to check port errors

You can also create port channels by entering the interface port-channel command. show interface status err-disabled is a much cleaner way of showing the reason for the error, versus the show log command. I am trying to determine the source of strange port behavior in a Nexus 5K switch. > Add ur files again. So you may need to check if you see any input errors on the other interfaces (on N5k or FEX)accompanying the output ones. A Cisco Coarse Wavelength Division Multiplexing (CWDM) SFP is a hot-swappable input/output device that plugs into an SFP port or slot of a Cisco switch or router and links the port with the fiber-optic network. eth101/1/1 0 0 0 0 0 Jan 22, 2023 · The force option bypasses, the port parameter compatibility check, and adds the port to a PortChannel. If it is not, check the unicast routing table. An interface with traffic overload can fail to transmit vital BPDUs. The LEDs on the front panel provide troubleshooting information about the switch. Command: Show interface counters errors . Apr 27, 2012 · Cisco has released the End-of-Sale announcement for the non-DOM SFP and the replacement parts are the DOM-capable SFP. I wane try to get an overview of interfaces with errors. Syslog logging: enabled (12 messages dropped, 0 messages rate-limited, 0 flushes, 0 overruns, xml disabled, filtering disabled) No Active Message Discriminator. Solution. In this case you can still see "interface up, line protocol up (connected)" status in the "sh int" command output. You can check the status of copper cables using the time domain reflectometer (TDR). Feb 27, 2023 · We have a new antivirus and I feel like it's since we installed it on our mail servers (but I don't manage that part). The reason is that ISDN PRI signaling rides on top of the T1 physical layer. Cheers: Istvan. Check for excessive noise (see the problem of excessive noise, earlier in this table). :-) Sep 19, 2006 · 09-20-2006 01:57 AM. Jan 10, 2012 · Pille. This will work on 3560 (and others - 2960, 3550, 3750). Following is an example of what an error-disabled port looks like: 2960G# show interface gigabit0/7 Jun 22, 2009 · To determine if a port is in errdisablestatus, issue the show port command. Dec 17, 2013 · Here is the output for Port-channel 10, Switch#sh interfaces port-channel 10. You say: >>" The errors often seen wwhile configuring speed auto and duplex auto in both the switch port connected trunk ports. no shutdown. 0. Hi. 04-27-2012 01:19 PM. Apr 12, 2015 · Options. Jul 11, 2010 · Hi, In order to check the speed and duplex setting of an interface on switch is. Jan 6, 2009 · Nonfatal-Port loopback test. What could be the cause for that? The IO LAN port at user end you can see in the attachement. Feb 8, 2022 · Post the configuration of the interface in question. -- interface e0d (18 days, 14 hours, 50 minutes The following commands are used to gather information on a Cisco IOS Software-based router when attempting to learn basic information about a router, or possibly troubleshooting protocol-independent problems: show version. The Test Results section shows the following information about the test performed: Last Update — Displays the date and time the port was last tested. Port has been Disabled. Step 2 Use the show run and show interface status privileged EXEC commands to verify that the port is not shut down. show interfaces counters errors. If the command "logging event link-status" is not in the configuration of the interface this means flapping link ports are not visible in the logs (the command " NO logging event link-status" is hidden, by default). 46 input errors, 0 CRC, 0 frame, 46 overrun, 0 ignored. 07-08-2011 05:54 AM. However it only returns the reason while the port is currently disabled. To check whether the T1 Layer 1 runs properly, use the show controller t1 command. jonathan. Oct 28, 2005 · Here's what I was able to do: From RME > Configuration Mgmt > Network Show Commands > Batch Reports >, I was able to define a report for show port status, Schedule the Report and run the report. for example WS-X6724-SFP. switch# show interface hardware-mappings. Sample: MDS9222i-1# fcping fcid 0x7500ef vsan 1 count 4 - try to ping for 4 times, the remote port is 0x7500ef in VSAN 1. GigabitEthernet3/22 is up, line protocol is up (connected) Hardware is Gigabit Ethernet Port, address is 000e. If the port is indeed err-disabled thanks to the BPDU Guard (check the cause of the err-disabled state using the show interfaces status err-disabled command) then the NetGear must be sending its own BPDUs, or there Jan 22, 2023 · switch# show CDP neighbor detail----- Device ID:Switch System Name: Interface address(es): Platform: cisco WS-C2950T-24, Capabilities: Switch IGMP Filtering Interface: mgmt0, Port ID (outgoing port): FastEthernet0/24 Holdtime: 137 sec Version: Cisco Internetwork Operating System Software IOS (tm) C2950 Software (C2950-I6Q4L2-M), Version 12. NVRAM : A health monitoring test, enabled by default that checks the. For example, to check the status on port 3/2, issue the show port 3/2 command. End-of-Sale and End-of-Life Announcement for the Select Cisco Gigabit Ethernet SFP Modules. (this will clear the values which are on the interfaces:-Input/output drops counters value. Unplug from the switch/router then format it again to the default settings which will be FAT32. This command shows the reason for the forwarding drops if reported on the interface. It can be used to check the link status especially the latency between switch ports. 1)confirm interface status is okay. module-1# show hardware internal tah counters asic 0. Use this command to display the full contents of the IP multicast routing table. Use the show switch user EXEC command to identify active stack members and stack member ports. FastEthernet3/0/12 is down, line protocol is down (notconnect) Apr 27, 2015 · Hi gurus, Below are my logging configurations. If you see errors on the port, check for a Network Interface Card (NIC) compatibility issue, or an improper configuration on the switch. If you have CatOS 4. Jan 11, 2023 · Script collects output of these set of commands and analyses same to identify the source of CRC. This is a sample command output: The switch sends a message to the console describing why the port is disabled when it puts a port in the errdisable state. The outgoing interface (s) is correct. Jul 17, 2023 · Bias-Free Language. . SWITCH 1 port 2 ----- PROVIDER2 NETWORK -----port 2 SWITCH 2. Description: show interfaces counter. 04-01-2009 08:18 PM - edited ‎03-06-2019 04:57 AM. 78723290 packets output, 1917039290 bytes, 0 underruns. a355) Apr 21, 2008 · Errors for all ports >sh int cou err. If the speed and duplex settings are correct, yet the CRC or runt counters continue to increase, perform these steps: Jan 26, 2016 · RX light level: RX dBm signal should be between -18 to -25 dBm. Sep 13, 2023 · Description: show interfaces counters errors. To view Disabled Ports: Nov 25, 2016 · Task 3 : Capture packets on ASA interface to check if the packets are seen on ASA for a specific source and destination 1. Description: This command shows a lot of useful outputs and will show different information depending on the device, model etc. One of the reasons could be because the interface is shutdown or the cable is faulty and no signal are being received on the interface. Hello. Nov 8, 2016 · Received 16169 broadcasts (5648 IP multicasts) 0 runts, 0 giants, 0 throttles. Execute the commands. (nxos) # attach module 1. SW-***-226#sh int fa3/0/12. Check Port Utilization. 1. To display details of the system interfaces, use the show interface command. The presence of many CRC errors but not many collisions is an indication of excessive noise. Redundant Mode N+N. Plug to the USB port on the switch/router > type dir usbflash0: (it should show you no files in directory ) 3. Last Input. 1) TFTP-69. For the purposes of this documentation set, bias-free is defined as language that does not imply discrimination based on age, disability, gender, racial identity, ethnic identity, sexual orientation, socioeconomic status, and intersectionality. - Check the logs on the 4500 for more info. Not sure if this is of any help to you. CRC/Input/outut errors. "I can guess you had auto and you have moved to fixed config. I think, you can try " show ip nbar port-map " command, this will give you list of tcp and udp ports, this command support certain router. Solved: Hello, if I run the command 'sh int counters errors' I see that port Gi0/13 is experiencing a lot of undersize packets. Hi, I've one command and you can also try that. you will see average statistic for "load-interval" what is by default 5 minutes. Interface discards are not always a sign of faulty hardware. com Mar 4, 2008 · If you want to know it on a per interface basis, then you need to enter the "show interface fastethernet x/y" command. Click OK. Sep 22, 2023 · To display what each of the 17 mentioned tests do, you can use this command: Nexus93180(config)# show diagnostic description module 1 test all. Enable this port again. The first few lines show which version of IOS software the device is running. d742. then I get . DIST_SW# sh int gi 3/22. USB : A bootup test that checks the USB controller initialization. The port LED is set to the orange color and, when you issue the show interfaces command, the port status shows as Errdisabled. show tech-support. 04-12-201506:27 AM. N5k is cut-through so it is starting to send packet before it get it's all from the sender. If you have maxed out you can clear the mac addresses with Apr 11, 2024 · The default standby power supply slot is PS8. 01-10-2012 07:07 PM. The output of this command will show you the errors classified by type, including the CRC errors. When you troubleshoot, use this command to verify: The (S,G) and (*,G) state entries from the flags. After the module is up again, capture the output of the command “show module” and the command “show diagnostic module all”. But my boss asks me to check the network. Hi, We can use 'shut' , 'no shut' and we can configure the switch to recover automatically. Step 1. errdisable detect cause small-frame comand 2-143. Problem is that I have a loop when switch 1 and switch 2 are interconnected via two different providers. But I can find any command to check gigabit only ethernet link. First make telnet connection with the switch. errdisable recovery command 2-146. 6500 switches. † Use the debug port-channel trace command to collect information. Port path cost 4, Port priority 128, Port Identifier 128. switch# show interface. See the Common Reasons and Solutions section for more information. Mar 6, 2019 · Fiber optic cable check command. where Fa equal a fastethernet port and o/1 equals the module and interface number of the port in question. Pause error-disable recovery can be enabled to get the ports out of this state, if the port is error-disabled due to transient condition as follows: If the port is error-disabled due to transient condition listed below show interface detailed. After the port has been brought out of err-disabled state, you should be able to look in the log and see the reason. 2) Verify your trunk links and ether channel if configure using following command: Useful command: “Show interface trunk”. on the module. Following is an example of what an error-disabled port looks like: switch#show int G1/0/1 GigabitEthernet1/0/1 is down, line protocol is down (err-disabled) Diagnosing Problems. The interfaces are all RJ45 interfaces. Jun 11, 2009 · What I actualy need is a method to show all interfaces in a specific vlan containing input errors in a campus network of about 40 Cat. 3) If problem follows cable, on the remote device can you move port to see if problem stays with port or cable. Be aware that cabling can play a role here. Dec 8, 2010 · One of our Cisco 3560 switches keeps showing this warning: Description: Gi0/15: Detected a Loop back. Solved: Hi Everyone, My Expertise with Cisco ASA is Very less. Performing Diagnostics. All or part of the signal can be reflected back due to defects in the cable. 870 unknown protocol drops. txt tftp://<TFTP IP address>". 2) DNS-53. See full list on cisco. switch# slot {x} show hardware internal tah counters asic {y} Prerequisites Aug 22, 2022 · Once the cause of the errdisable status is found and corrected, re-enable the port by issuing the set port enable command. The incoming interface is correct. Troubleshooting tips for checking interface on switches. Ports 11/1-2 enabled. Aug 31, 2007 · To resolve the issue: Excessive noise. Fcping. Sample Output Of “show 4. when you use ip helpe address method, then following UDP ports are by defaul open. Jul 7, 2021 · Storage reports following message on an hourly level: vifmgr. 02-23-2016 04:22 PM. Common Reasons and Solutions Jun 22, 2010 · Options. You may also use the rootguard command as replacement of bpdu guard, this also disables the port when it recv a superior bpdu & recovers the port by itself when it ceases to hear bpdu's on the port. If this test failed, it means some port functionality to one or more ports is lost. Use line wrapping with the command history feature to recall and modify previous complex command entries. Feb 23, 2016 · Options. Step 3. I use this to find out how long the switch port was down using the key word mentioned in the show interface . Recommendation: Check Configuration of the switch, also make sure devices connected to the switch are not mirroring the traffic back to switch. When you're troubleshooting Ethernet media in a Cisco router environment, the show interfaces ethernet command provides several key fields of information that can assist with isolating problems. 03-24-2022 08:12 AM - edited ‎03-24-2022 08:13 AM. You should connect only to ports that have passed this test. show interface or show interface status or show ip int brief commands would show the protocol status and line status of the each interface. No Inactive Message Discriminator. 05. For example: you have two switches: When a port is in error-disabled state, it is effectively shut down and no traffic is sent or received on that port. There's nothing to test the fiber directly, other than a separate fiber tester device like a light meter or an OTDR. When doing a show inteface - What do Input Errors indicate? Aug 29, 2017 · Here is what my show commands look like: show version : IOS (tm) C2950 Software (C2950-I6K2L2Q4-M), Version 12. 0 watchdog, 16164 multicast, 0 pause input. Media Type: 1000BaseSX SFP. a980. If you must connect the cable to active, powered-on switches, wait 60 seconds for the stack to reconverge and stabilize after you connect the cable. Best regards Aug 18, 2010 · Options. maxwell. Mar 7, 2017 · Hi, try command "show interface summary" or for specific interface "show interface fa0/1 summary". The switch disables any port (s) that failed this test, and the POST failure message on the indicates which port (s) did not pass this test. HTH. TDR detects a cable fault with a signal that is sent through the cable and read the signal that is reflected back. This counter is updated only when packets are process switched, not when packets are fast switched. Console logging: level debugging, 70 messages logged, xml disabled, Mar 1, 2019 · To recover from this condition, the system will automatically. This command reads the contents from the EEPROM of the SFP installed and I havent Jun 23, 2009 · to see what type of errors appear. 0 output errors, 0 collisions, 0 interface resets. 02-13-2022 11:23 PM. The number of valid size frames with Frame Check Sequence (FCS) errors but no frame errors. Inspect the cables for damage. 1241 (bia 885a. In your case, the output drops counter is actually 0, which indicates that the switch is not dropping packets. switchport mode trunk. A warning window appears. This will create a Layer 3 port channel. I am getting collision errors on couple of interfaces on the my WS-C4506-E switch. How can I check the physical health of a port in a Nexus 5K switch, to determine that the issue is not at the physical layer? Thank you. Diagnostics consists of packet-switching tests that test hardware components and verify the data Apr 25, 2023 · Some SFPs need configuration and actions in order to be able to work in a Catalyst 3850 switch (mostly when they are manufactured by a third-party vendor). Apr 12, 2015 · We have changed the LAN port IO connector at user end. Among it's uses it also can determine if the length of the cable run is excessive. The documentation set for this product strives to use bias-free language. description Fibre link to Switch B. Aug 31, 2013 · switch#. S1#sh interfaces counters errors. Command: show version. Find the source and destination IP / subnet and if possible the TCP/ UDP ports involved 2. This command shows the output Drop Packets for the module on the ports. 09. crcerrors: Port on node is reporting a high number of observed hardware errors, possibly CRC errors. In fact they are in a lot of configurations part of normal operation based on the configuration of each switch/port. You will typically see discard rates increase and decrease on interfaces. 4) I believe problem will be with cable, if so, new cabling (or ends). "show inventory" shows the part ID of the SFP installed which can be used to find out the transceiver type. It also forces the individual member interfaces to inherit the port parameters configured on the PortChannel itself. Refer to following link to get more info on cable-detect-poll-timer and information on show command to analyze cable detect. Jan 2, 2009 · show power inline. StackWise architecture allows a stack of up to eight switches in a ring topology to achieve a high density of stack bandwidth. And another point , in that switch , at least 4 ports LED is glowing amber despite having no cable connected to these ports. They show POST failures, port-connectivity problems, and overall switch performance. Could you please provide: show ip int brief and show interface status. The software assumes that you have a terminal screen that is 80 columns wide. txt". Enter these commands: 3850(config)# no errdisable detect cause gbic-invalid. When I do a show interface counters errors, I see High Number of Out Discards. Andy. cluscheck. Designated root has priority 28792, address a0b4. clear counters >> This will clear counters values for all the interfaces. a355 (bia 000e. To configure the PoE port to automatically recover from the error-disabled state, use the errdisable detect cause inline-power global configuration command to enable error-disabled detection for the PoE cause and the errdisable recovery cause inline-power interval interval global configuration command to enable the recovery timer for the PoE Jul 8, 2011 · Options. Hope to help. 1 (change the ip as required,) Enter Password to continue. Thank you. Aug 30, 2018 · The last input field in show interface output says never, even when there is traffic ingressing the port. show interfaces. -minu mathur. show logging. Specify a standby slot with the power redundancy-mode redundant n+1 [standby-PS-slot] command. The Cisco CWDM SFPs are multirate parts that support both Gigabit Ethernet and Fibre Channel (1 Gigabit and 2 Gigabit). You can also get statistics from Device Manager, from the CLI, or from an SNMP workstation. You can easily check if this is your case via the "sh spanning-tree" command. When you troubleshoot a Primary Rate Interface (PRI), ensure that the T1 runs properly on both ends. Number of hours, minutes, and seconds since the last packet was successfully received by an interface. 1(19 Jun 22, 2009 · The port LED is set to the orange color and, when you issue the show interfaces command, the port status shows as Errdisabled. May 11, 2023 · This article is applicable to Catalyst 9200/9200L, 9300/9300L and 9300X switches. switch# show interface counters errors non-zero. show port security address will display all the secure mac addresses on the switch. (nxos) # show hardware internal errors module 1. In order to configure speed and duplex setting in interface following is the procedure. Port Align-Err FCS-Err Xmit-Err Rcv-Err UnderSize OutDiscards Gi1/0/1 0 Jun 20, 2007 · This can be done manually using the set port enable command. Errors for specific port >sh int Fa0/1 cou err. telnet 10. You can use diagnostics to test and verify the functionality of the hardware components of your system (chassis, supervisor engines, modules, and ASICs) while your Catalyst 4500 series switch is connected to a live network. Mar 18, 2019 · Operational Auto-MDIX: off. Here is a document for "Troubleshooting Switch Port and Interface Problems". May 9, 2008 · BPDUguard puts a port in err-disable state when it recv a bpdu on access port. Copy the text file from your appliance's flash to your TFTP server using the command "copy flash:blah. Click Copper Test. Sep 28, 2013 · 3. I think the same command will work on the 4500 but there may be some other sub-options as well. show running-config. Use "show voice cable-status all" command to see the cable status however you need to configure (cable-detect) the same under voice-port. Switch POST Results. Jul 18, 2023 · There are specific commands which apply to the Catalyst 6500/6000 only; however, you can apply most of the principles to any Cisco Catalyst switch that runs Cisco IOS software. Each port on both ends is also trunked: interface GigabitEthernet0/1. show interfacedetailed {interface_name | management | redundancy-management | redundancy-port |. Port-channel10 is up, line protocol is up (connected) Hardware is EtherChannel, address is 885a. Cannot Create Port Channel Feb 16, 2010 · 09-10-2015 02:41 AM. Step 2. Remove the SFP module, shut down/do not shut down the port, and Nov 25, 2011 · I always use this command below on new site installations to make sure the end-to-end cabling is not an excessive length due to the path taken. To enable err-disabled ports on Cisco 3750 switch series. Exchange the cable with another cable in the stack. In the next example, power supply inserted in slot 5 is configured as standby: Switch(config)#power redundancy-mode switch 1 redundant N+1 5. The TDR detects a cable fault by sending a signal through the cable and reading the signal that is reflected back to it. resynchronize the fabric channel. Refer to link in the "Related Information" section. Apr 23, 2014 · Direct the output to a file located inside the appliance's flash using the command "COMMAND | redirect BLAH. 46. I know that "show cable-diag tdr int [slot/port]" command can check 10/100/1000 etherent link. The Aug 16, 2011 · The indication that port is disabled in Cisco Device Manager ("web-interface") is very often due to the spanning-tree port blocking status. This is reflected in the output of the IFSTAT command as well: Cluster::> system node run -node <node name> -command ifstat. “Show etherchannel summary”. 04-27-2010 08:06 AM. Jun 22, 2009 · For example, to set port 4/1 to 100/full, issue the set port speed 4/1 100 and set port duplex 4/1 full commands. 28 bytes from 0x7500ef time = 1283 usec. errdisable recovery cause small-frame 2-145. Mar 13, 2024 · With TDR, you can check the status of copper cables for the ports on the Catalyst 9000 Series Switches. † Issue the show cdp neighbors command on the VSM and check the output. 39d7. Cisco IOS Software-Use the command show interfaces to Feb 7, 2011 · Hi Navneet, As far as I know, there is no command that can tell precisely whether the SFP is a GLC-SX-MM or a GLC-LH-SM. Try "sh idprom interface gix/y". Yesu Babu. Issues with most STPs have these three problems: Forwarding loops. Dec 6, 2013 · When a server or client connection to the switch does not come up, look for an autonegotiation issue. 3850(config)# service unsupported-transceiver. R2#show log. Oct 5, 2016 · 2. Cisco IOS XE Software, Version 16. From the Port drop-down list, choose the port you wish to perform the copper test on. I have observed Input errors in a Couple of Interfaces in Cisco ASA 5540 Firewall. I am unaware of a command that shows a percentage of power used/unavailable when it comes to PoE usage. A private-VLAN port cannot be a secure port and should not be configured as a protected port. Giuseppe Dec 13, 2018 · Step 2. Use the show interface ethernet exec command to determine the status of the device's Ethernet interfaces. if line status is administratively down, interface is disabled by shutdown command. 06-21-2010 10:49 PM. If your IOS supports trunks you can check the status of the port security and the number of mac addresses learned on the interface; show port-security interface fa1/0/33. 2. 2 (2) or later, one can use the set option errport command as described above to prevent ports from becoming error-disabled. Syntax Description. The stack architecture expands the switches’ form factor, throughput, port density, and redundancy and provides a single control and Aug 7, 2013 · Checking the Cable Status Using the TDR. Apr 27, 2010 · Level 1. 01-02-2009 06:27 AM. 0 Helpful. A port channel cannot be changed Nov 28, 2023 · show ip mroute. A link overload also indicates a possible bridging loop. Excessive flooding due to a high rate of STP Topology Changes (TC). 08-18-2010 10:19 AM. To reuse the port, you need to shut/noshut the port. Fcping is like the "ping" command in Ethernet. show interface detailed. In response to Leo Laohoo. In the lab during setup, I was able to to connect the two switches together using the SFP port and ping each other. Commands are as follows: errdisable detect cause command 2-140. I can use Kiwi Cat tools for it, but I need an effective IOS command to check for. Oct 5, 2023 · Current configuration : 13 bytes ! ! ! ! end ----- show stacks ----- Minimum process stacks: Free/Size Name 5080/6000 SCP Find Master process 8448/12000 Init 5528/6000 IPC Zone Manager 5264/6000 SCP Hybrid Registration process 4616/6000 IPC delayed init 5056/6000 SIP2 FPD Process 8120/12000 Exec 6920/12000 console_rpc_server_action 7536/12000 Show Commands for CUBE 98 Cisco Unified Border Element (SP Edition) Configuration Profile Examples OL-23445-01 Display Adjacency States The show sbc sbe adjacencies command displays the state of the adjacencies that are configured on SBEs, as shown in the following example: Router# show sbc MY_SBC sbe adjacencies SBC Service “MY_SBC" Jun 13, 2015 · There is nothing harm to your devices running the following commands. Issue the command “hw-module reset” to soft-reset the module. I have this problem too. 296867 input errors, 0 CRC, 0 frame, 296867 overrun, 0 ignored, 0 abort 0 pause input, 0 resume input 0. you can change it on interface by command "load-interval ", but remember that if you have running some services which relies on interface statistics, then they If BPDU guard is configured globaly, you will see it as enabled by default on the given output: Port 46 (GigabitEthernet1/0/46) of VLAN0120 is designated forwarding. Step 4. Common Causes: This is typically a physical issue (such as cabling, a bad port, or a bad Network Interface Card (NIC)) but can also indicate a duplex mismatch. Even if this tests out as Normal, there still might be something wrong with the cable, so even then I would suggest to replace the cable, or plug the machine in another switchport. 1241) MTU 1500 bytes, BW 20000000 Kbit/sec, DLY 10 usec, reliability 255/255, txload 1/255, rxload 1/255. Ensure that there are no errors on any of the counters. Feb 27, 2013 · Yes, this command is working. In CatOS there is not a command to change the duplex setting to auto, so. 1 (22)EA14, RELEASE SOFTWARE (fc1) show int f0/1 | inc bit : show int f0/2 | inc bit : HI, For my company I'm often asked to troubelshoot some packet loss inside a layer 2 network. Generally, the show platform hierarchy provides you with a plethora of May 9, 2024 · Cisco IOS Software-Issue the show interfaces [interface-number] status command to check the speed and duplex status of the specific port. Cat5500> (enable) set port enable 11/1-2. While a port is part of the private-VLAN configuration, any EtherChannel configuration for it is inactive. Clear counter int g1/0 -- this will clear only for one particular interface. Mar 24, 2022 · Go to solution. If you have a different width, use the terminal width privileged EXEC command to set the width of your terminal. Dec 18, 2023 · Background Information. show int gig 0/12 it will show the detail of the interface with duplex setting and spped negotitaed with the peer end device. The cable from patch panel to the switch has also been changed. This of course to find ports that went disabled before I got syslog setup and working on all devices. 92d1. To change the Layer 3 port channel into a Layer 2 port channel, use the switchport command before you assign physical interfaces to the channel group. Hi Pille, Output errors can be caused by many things. If the set port enable command is issued without the cause of the errdisable status being corrected, the port eventually goes back to the Nov 27, 2009 · SWITCH 1 port 1 ----- PROVIDER1 NETWORK -----port 1 SWITCH 2. For example if the RX is -40 dBm that is indicating the port is not sending out any signal. Level 1. For example, to re-enable ports 3/2-3, issue the set port enable 3/2-3 command. Aug 23, 2010 · Step 1 Verify that the powered device works on other ports and that the problem is only on one port. conft>int gig 0/12. Aug 24, 2010 · Check for pause error-disable logs using the show hardware internal gatos event-history errors |grep -i err command. FI # attach module 1. Switch# port align-err FCS-err Xmit-err RCV-err undersize. All or part of the signal can be reflected back by any number of cable defects or by the end of the Mar 16, 2017 · Bad cable. Options. For example WS-X6748-GE-TX etc. Jun 23, 2012 · 2) Can you move it to a diff port to see if problem stays on port or cable. (Most Cisco switches turn off port power when the port shuts down. frame. One good command to know on most Cat 2K and 3K platforms is show platform port-asic stats drop, which will show you dropped packets on the switch on the ASIC level. ) Feb 8, 2018 · The port LED is set to the orange color and, when you issue the show interfaces command, the port status shows as Errdisabled. In my lab, I'm trying to work out ways to diagnose Jul 3, 2013 · If that is the case then on the individual port, the BPDU Guard can be disabled using the spanning-tree bpduguard disable command. ) May 30, 2017 · If the port is administratively down, you need to enable them executing: no shutdown, you can enable them using: using a range command: interface range fa0/1-48. For more information about private-VLAN interaction with other features, see the software configuration guide for this release. Then it seems that there are fcs errors (duplex mismatch) on the line. Follow the below . A bad patch cable can cause problems. Troubleshooting Steps. Please rate this post. I suspect that one of providers do not propagate BPDUs, or drop some of BPDUs. † Once the ports came up, check that ports are put in the correct sub-groups by issuing the module vem module-number execute vemcmd show pc command on the VEM. xd oy li hp fx vy tm am nv qb