Cisco shutdown port range. Note the spaces around each delimiter.
Cisco shutdown port range Here is how to configure port security on multiple interfaces: Apr 25, 2018 · Command Interface Range Use This is the modern way to configure VLANs. However, because the port is administratively enabled, the port status displays as err-disable. Dec 1, 2004 · Hi, Is there a way to shutdown a range of ports, for example ports 13-24, instead of shutting down each port individually? Thanks Aug 25, 2009 · Hi can any one guide on how we can disable a specific switch port on Catalyst 2960 switches for a specific period of time. Note the spaces around each delimiter. It treats each port as a fast ethernet interface, so just log into the switch, go to interface configuration, and then do a shut. Feb 4, 2016 · Although the most secure option for dealing with unused switch ports is to just disable them, this does nothing to secure in-use ports. Port Settings — You can configure the Up or Down state of the port for a specific period. Jul 31, 2014 · On the Cisco 7600 series router, slots are numbered starting with 1, from top to bottom or right to left. Mar 31, 2025 · Connect the switch console port to a management station or dial-up modem, or connect the Ethernet management port to a PC. The Cisco MDS 9000 FabricWare software implicitly performs a graceful shutdown in response to either of the following actions for interfaces operating in the E port mode: • If you shut down an interface • If a Cisco MDS 9000 FabricWare application executes a port shutdown as Jan 11, 2021 · I am trying to clear a mac from a port. Is it advisable to shut the individual ports(eg. When this switch was installed, the installer connected every port on the patch panel to a port on the switch, so I can't tell which ports actua Oct 22, 2021 · Best practice for Ethernet interfaces Management interface Port-Channel interfaces Subinterfaces Loopback interfaces Breakout interfaces Best practice for Ethernet interfaces Ethernet interfaces have these characteristics. Sep 25, 2009 · If you configure the action to be taken as shutdown (the port is error-disabled during a storm) when a packet storm is detected, you must use the no shutdown interface configuration command to bring the interface out of this state. Sometimes, simple tasks like enabling a bunch of Administratively shutdown ports, assigning a range of switchports to a particular VLAN can become boring and tedious. On Token Ring interfaces, this command causes the interface to be deinserted from the ring. power inline legacy Apr 24, 2018 · Syntax Router (config-if)#shutdown OR Router (config-if)#no shutdown Example In the below example, we shutdown R1’s Fa0/0 interface and then enable the interface again. Sep 29, 2017 · switchport port-security The port-security commands above do not take effect until port-security is enabled on the port with this command. Finding Feature Information Your software release may not support all the features documented in this module. Dec 13, 2018 · This article provides instructions on how to configure time range settings on the Sx300, Sx350, SG350X, Sx500, Sx550X series switches. Sep 26, 2025 · This chapter contains the following sections: interface interface range shutdown operation time description speed duplex negotiation flowcontrol mdix back-pressure port jumbo-frame link-flap prevention clear counters set interface active errdisable recovery cause errdisable recovery interval errdisable recovery reset show interfaces configuration show interfaces status show interfaces Feb 11, 2020 · On servers and desktops we do: C:\ipconfig /release && ipconfig /renew That way we are able to reconnect after releasing an IP and not thrown out and unable to reconnect because it has no IP. Now try to reset the interface to default and please try again. please help Sep 24, 2014 · By default, all Cisco Nexus 9396 and Cisco Nexus 93128 ports are Layer 2 ports. Loopback Detection operates independently of STP. abort Syntax Description This command has no arguments or keywords. Neighbor Expiration Time (Sec. A useful feature is that you can configure a range of VLANs with a single command. To identify the airflow options for your switch, see the user-replaceable components in the Overview section of this document. Apr 14, 2015 · A port is in the error-disabled (err-disabled) state when the port is enabled administratively (using the no shutdown command) but disabled at runtime by any process. Configuring port speed: You can configure a port's speed to configure the rate of data flow. On the Cisco 7600 series router, the port numbers always begin with 1. Configuring port description: You can configure a port's description to identify the port. Oct 7, 2009 · The Interface Range Specification feature allows specification of a range of interfaces to which subsequent commands are applied and supports definition of macros that contain an interface range. Jul 10, 2003 · What is the IOS command in the 4506 to shutdown or enable more that one port with a single command? I do not want to go into each interface configuration and give "shutdown command" for each port! Mar 28, 2007 · I have a 48 ethernet port switch with 4 gig interfaces and i want to disable all the ethernet ports (1-48). Sep 23, 2019 · Hi, I need to shutdown/disable a range of port of my switch Xtreme for security reasons, so nobody can use it. It allows users to interact with Cisco routers, switches, and other devices, offering full control over network settings and configurations. Use any Telnet TCP/IP or encrypted Secure Shell (SSH) package from a remote management station. Feb 28, 2025 · (Range 1-100) kbps kbps —Maximum of kilobits per second of Broadcast traffic on a port. Mar 28, 2022 · In releases prior to Cisco NX-OS Release 9. Jan 28, 2020 · Hello, I have a Cisco C2960X and I'm trying to figure out which ports have no devices connected to them so that I can free up space for other devices. While describing an interface range, the ethernet keyword need not be repeated as in NX-OS. Each group of 4 host-optimized ports have the same rules as for the Aug 14, 2019 · Task: Disable interfaces Gi0/1 to G10/24 on switch7 for example Solution: switch7(config)#interface range Gi0/1-24 switch7(config-if)#shutdown I hope you found this blog post on How to disable unused Cisco Access Ports helpful. After a loop is discovered, the Mar 14, 2025 · Airflow Requirements The switch is positioned with its ports in either the front or the rear of the rack, depending on your cabling and maintenance requirements. I will show the examples of these commands, as well as how to check an interface status using the show interfaces status command. Dec 23, 2024 · Configuring Parallel Redundancy Protocol (PRP)Cisco Catalyst IR8340 Rugged Series Router Software Configuration Guide, Cisco IOS XE Release 17. NTP is running on the switch. For the latest feature information and caveats, see the release notes for your platform Can I do a shutdown on all ports assigned to a vlan, versus selecting each port individually or using the interface range command? The shutdown command disables all functions on the specified interface. How do you turn off an interface? Below you will find the examples of how to bring up and down an interface on a CISCO switch or router. Learn more about Shutdown voice-port, VR-870. 1a, the following platforms support SRTP DTMF interworking with SMTP: Cisco 4461 Integrated Services Router (ISR) Cisco Catalyst 8200 Edge Series Platforms Cisco Catalyst 8300 Edge Series Platforms Cisco 8300 Series Secure Routers Cisco Catalyst 8000V Edge Software Configuring Support for Software Media Termination Point Oct 5, 2017 · interface description duplex flowcontrol receive mdix negotiation shutdown speed switchport access vlan switchport community switchport dot1q-tunnel vlan switchport mode switchport protected-port switchport trunk allowed vlan switchport trunk allowed vlan vlan-range switchport trunk native vlan switch clear counters show switch interface configuration show switch interface counters show switch Switch Port Configuration - Shutdown By default on most Cisco switches, all interfaces will be in an administratively shutdown state. This causes management applications to indicate there is a difference between the port-channel Dec 23, 2019 · Entering a no switchport interface configuration command shuts down the interface and then re-enables it, which might generate messages on the device to which the interface is connected. Here is what it looks like from the running config: interface GigabitEthernet5/0/7 switchport mode access switchport port-security mac-address sticky switchport port-security sh interfaces status err-disabled returns: Gi5/0/7 err-disabl In this Video of Cisco Basics we're going to take a look at the 'Interface Range' command and how this can be used to speed up configuration on Cisco devices shutdown Use the shutdown interface configuration command to disable an interface. However, at work they put them in unused VLAN which serves just for this purpose. Port security limits the number of valid MAC addresses allowed on a port, thus preventing unauthorized devices from connecting to your network. vlan 789 interface range fa0/4 - 24 switchport mode access switchport access vlan 789 shutdown (All of the other ports remain in VLAN 1) My main question is why is shutdown not enough? Why not run "no vlan 789" when you are finished adding the ports? That would certainly put a stop to things. CCNA - Cisco Apr 1, 2021 · Interface and Hardware chapter wrapper for command reference. Enter the clear port-security dynamic global configuration command to Feb 4, 2011 · c Shut down all unused physical ports on the switch Use the interface range from CISCO Cisco at Durham College interface rangeコマンド 連続したインタフェース (config)#interface range <interface-type> <slot>/<port > – <port> (config-if-range)# 連続しない複数のインタフェースを一括で設定するためには、「,」 (カンマ)で区切って指定します。 Dec 20, 2009 · 12-20-2009 11:36 AM Hello Gautam, in theory it is not needed, but I had to use no shut on port-channel interface some time ago on two C6500 with sup720. x 2 OL-30891-01 Configuring Port Channels Guidelines and Limitations for Port Channel Configuration •Shutdownandnoshutdowncanbeconfiguredineitherglobalconfigurationmodeorswitchprofile mode. Apr 19, 2012 · Introduction This document mentions about the commands used for troubleshooting voice ports. Dec 13, 2018 · This article provides instructions on how to configure time range settings through the Command Line Interface (CLI) on the Sx300, Sx350, SG350X, Sx500, Sx550X series switches. Configuring Port Channels This chapter describes how to configure port channels and to apply and configure the Link Aggregation Control Protocol (LACP) for more efficient use of port channels in the Cisco NX-OS devices. Use the no form of this command to restart local traffic on the VLAN. All ports that you have configured as switch ports belong to the default VLAN when you first bring up the switch as a Layer 2 device. There are no licensing requirements for port configuration in Cisco NX-OS. Nov 7, 2020 · Connect the switch console port to a management station or dial-up modem, or connect the Ethernet management port to a PC. For information about connecting to the console or Ethernet management port, see the switch hardware installation guide. Or "switchport port-security mac-address" (random-mac)? Sep 22, 2009 · Since, I found that I can do the following: uc520#conf t uc520 (config)#voice-port 0/1/0 uc520 (config-voiceport)#shutdown uc520 (config-voiceport)#no shutdown The problem is, after the voice-port comes back, UC520 will try use the line to try and make a call, but nothing ever happens, and the line simply goes dead and UC520 hangs up after 40 Sep 13, 2011 · Hello, I would like to save power by scheduling the PoE switch ports on my switches to shutdown every night and turn on at a specified time during day. Sep 20, 2012 · Hello, I am on a 48 port switch and I have shutdown ports 20-40 using the interface range command, now I need remove the lines of config from those ports. Jul 31, 2020 · When a secure port is in the error-disabled state, you can bring it out of this state by entering the errdisable recovery cause psecure-violation global configuration command, or you can manually re-enable it by entering the shutdown and no shut down interface configuration commands. In my case the bundle was LACP and the port-channel interface was created in shut state. For the Cisco 4506e: What is the syntax to do a shut, no shut command as one entry so when I'm thrown out, the port goes back to no shut so I can reconnect? Basic Interface Configuration Commands The following basic commands apply to just about any type of interface. If a time range is not specified, there is no time range bounded to the port. (Range 1 –10000000) trap — (Optional) Sends a trap when a storm occurs on a port. Sep 2, 2015 · A Cisco Nexus device periodically transmits UDLD frames to neighbor devices on LAN ports with UDLD enabled. abort (switch profile) To discard the current switch profile configuration, use the abort command. Mar 25, 2025 · In this article, I’ve compiled a general base configuration to be used for setting up Cisco Catalyst access switches running IOS-XE. Mar 5, 2021 · Shutdown—The port has been shut down because its link with the connected device is undetermined in aggressive mode. x Note Cisco Nexus 5500 Series NX-OS Interfaces Configuration Guide, Release 7. An interface that is shutdown will not send or receive traffic. On the CISCO command-line f0/15 port was used by a server. Feb 27, 2025 · Shutdown—The port has been shut down because its link with the connected device is undetermined in aggressive mode. Graceful Shutdown Interfaces on a port are shut down by default (unless you modified the initial configuration). When you put an interface that is in Layer 2 mode into Layer 3 mode, the previous configuration information related to the affected interface might be lost. If a Cisco NX-OS software application executes a port shutdown as part of its function. Note In the Cisco MDS 9100 Series, the left most groups of ports outlined in white (4 ports in the 9120 switch and 8 ports in the 9140 switch) are full line rate like the 16-port switching module. gig1/6 & gi1/7) from the switch side or to Jul 2, 2020 · Is the current example shutting down port 35 ? Does it work as expected ? Are you going to shutdown the same ports on all switches or do you have different ports per switch ? Do you need to issue a config command for each port shutdown or is it enough to have it once per switch ? Dec 11, 2024 · Entering a no switchport interface configuration command shuts down the interface and then re-enables it, which might generate messages on the device to which the interface is connected. Ethernet interfaces include routed ports. To take an interface out of a shutdown state: Switch(config)# interface gi3/10 Switch(config-if)# no shutdown interface range command example The following is an example of entering the shutdown command from GigabitEthernet0/1 to GigabitEthernet0/3 and GigabitEthernet0/5 all at once. Default Configuration Prior to Initial Setup Configuration After Initial Setup Default Configuration Prior to Initial Setup Before you initially configure the Firepower Threat Defense device using the local manager (FDM), the device includes the following default Dec 8, 2015 · The following figure shows examples of Ethernet ports directly on leaf nodes or FEX modules attached to leaf nodes and how each is represented in the CLI. Use the shutdown vlan global configuration command on the switch stack or on a standalone switch to shut down (suspend) local traffic on the specified VLAN. VLANs are numbered from 1 to 3967. Jan 21, 2019 · When a secure port is in the error-disabled state, you can bring it out of this state by entering the errdisable recovery cause psecure-violation global configuration command, or you can manually re-enable it by entering the shutdown and no shut down interface configuration commands. Jul 31, 2018 · Connect the switch console port to a management station or dial-up modem, or connect the Ethernet management port to a PC. If the keyword is not specified the trap is not sent. 2 V ] Use the shutdown interface configuration command to disable an interface. Jul 13, 2019 · How do I turn off unused interfaces Cisco? Disable Unused Ports Navigate to each unused port and issue the Cisco IOS shutdown command. This configuration covers a wide range of features that are useful to at least take a look at for most deployment scenarios. 4 (1) Description Symptom: After upgrade to 8. The other ports (16 ports in the 9120 switch and 32 ports in the 9140 switch) are host-optimized like the 32-port switching module. Mar 31, 2025 · Entering a no switchport interface configuration command shuts down the interface and then re-enables it, which might generate messages on the device to which the interface is connected. If any of the other three ports are enabled, you cannot configure the remaining port in dedicated mode. Which command(s) i need to do it ? Thank you. Dec 27, 2016 · On the CISCO command-line interface, there is the shutdown interface configuration command to disable an interface and the no shutdown command to enable it. If a port later on needs to be reactivated, it can be enabled with the no shutdown command. Once a port goes into the err-disable state, you must manually reenable it or you can configure a timeout value that provides an automatic recovery. Position the fan and power supply modules to move the coolant air from the cold aisle to the hot aisle in . Oct 29, 2002 · On a cisco switch such as a catalyst 2900 & 3500 series switches, you can just shut the port down. This article describes the interface range command, which is used to configure multiple interfaces in Cisco IOS. Best practices for quad group configuration on Cisco Nexus N9K-C9364C-GX and N9K-C93600CD-GX Breakout port considerations on Nexus Shutdown—The port has been shut down because its link with the connected device is undetermined in aggressive mode. There is a plan to shut down the switch ports connected to controller for some testing. 3 (7), in a port-channel configuration with a member port operating as an individual (I), you can define the STP port-type under the member port rather than the port-channel. Mar 5, 2021 · Loopback Detection Settings Loopback Detection (LBD) provides protection against loops by transmitting loop protocol packets out of ports on which loop protection has been enabled. When facing the rear of the router, ports are numbered from the left to the right or top to bottom. 2 release. Jul 1, 2024 · Beyond VLAN configuration, the Interface Range Command is extremely useful for enhancing network security through port security settings. Initial Port Troubleshooting Checklist Begin troubleshooting the port configuration by checking the following issues: When you delete a specified VLAN, the ports associated to that VLAN are shut down and no traffic flows. For detailed information about Ethernet interfaces concepts, configuration tasks, and examples, refer to the Interface and Hardware Component Configuration Guide for Cisco NCS 5500 Series RoutersInterface and Jul 17, 2014 · Hello It looks like that device was seen a power device by the switch, possibly via negotiation of L2 discovery packets (CDP, LLDP) and as such tried to provide power to the port or it could be that the device wasn't at that time receiving enough power for it external source and the switch noticed this again thorough L2 discovery packets and tried to supply power, So disabling POE on the Download manual for Cisco Systems VR-561. Sep 16, 2025 · Ethernet Interface CommandsThis module provides command line interface (CLI) commands for configuring Ethernet interfaces on the Cisco NCS 5500 Series RouterCisco NCS 540 Series Router. If the frames are echoed back within a specific time frame and they lack a specific acknowledgment (echo), the link is flagged as unidirectional and the LAN port is shut down. Use the shutdown vlan global configuration command to shut down (suspend) local traffic on the specified VLAN. i cant find anything in cisco that would allow me to do this. Apr 16, 2025 · This document describes how to configure, verify, and troubleshoot the Port-Channel on Firepower Appliances. Description show interfaces Displays the statistical information specific to all interfaces or to a specific interface. Dec 3, 2012 · This chapter explains how to configure voice ports using the CLIs created and modified for the Cisco VG350, Cisco VG310, and Cisco VG320 Analog Voice Gateways and associated service modules. When the switch sends out a loop protocol packet, and then receives the same packet, it shuts down the port that received the packet. When the time range is not in effect the power is not supplied the attached device. Aug 26, 2024 · From Cisco IOS XE 17. shutdown — (Optional) Shut down a port when a storm occurs on the port. I tryied using disable ports Exemple: disable port 1 But disable command is unrecognized. After physically connecting analog or digital devices to a Cisco voice-enabled router, you might need to issue show, test, or debug commands to verify or troubleshoot your configuration. Mastering Cisco CLI commands is essential for network engineers and IT professionals May 8, 2025 · This document describes common methods to troubleshoot power supplies on Catalyst 9000 Series Switches. When the time range is not active, the port is in shutdown. If you have any questions, please let me know in the comment session. 4 (1), "no shutdown" command for the port-channel interfaces display in the startup-config is not shown on the same interface in the running-config. By default, all Cisco Nexus 9504 and Cisco Nexus 9508 ports are Layer 3 ports. Normally I use the no command but it takes ages as the ports are quite specific, is there a quicker way as I have to do this at another 28 site How good is your python? You could write a script that uses netmiko or Paramiko to login check for downed ports and issue a shutdown command do that port. And in a live environment, the majority of switch ports will be in-use. For the Cisco 4506e: What is the syntax to do a shut, no shut command as one entry so when I'm thrown out, the port goes back to no shut so I can reconnect? Feb 11, 2020 · On servers and desktops we do: C:\ipconfig /release && ipconfig /renew That way we are able to reconnect after releasing an IP and not thrown out and unable to reconnect because it has no IP. Sep 6, 2024 · How to Reactivate Cisco Network Interfaces with 'no shutdown' Have you ever faced a situation where one or more of your Cisco network interfaces were inadvertently shut down, leading to unexpected downtime? Reactivating Cisco network interfaces efficiently is crucial for minimizing network disruptions and maintaining business continuity. )—Displays the time that must pass before the device attempts to determine the port UDLD status. Navigate to each unused port and issue the Cisco IOS shutdown command. Aug 18, 2023 · If any of the other three ports are enabled, you cannot configure the remaining port in dedicated mode. Command Default None Command Modes Switch profile configuration mode Command History Graceful Shutdown Interfaces on a port are shut down by default (unless you modified the initial configuration). Does anyone know how to do it? Thanks, Ram interface range Gi1/0/3 - 5 , Gi1/0/36 , Gi2/0/9 - 10 This is the command that I would enter on a Cisco Catalyst 2960-X running IOS version 15. i removed it and plugged in a PC into the same switch port, but the port remained active. On FDDI interfaces, this command causes the optical bypass switch, if present, to go into bypass mode. The only config on that interface: #switchport mode access #switchport access vlan 111 By the Sep 11, 2014 · This chapter describes the Cisco NX-OS interfaces commands available on Cisco Nexus 3000 Series switches. ) never—Turns off the device discovery protocol and stops supplying power to the device. You could gather some data from the interface last input time, and also scrap the log buffer for the interface name, or pull data from syslog to get a better idea of how long a port has been down for though. Aug 14, 2024 · To enable breakout on all the supported breakout ports, use the hw-module switch switch-num breakout port port-range command where switch-num varies between 1 and 2 and port-range varies from 1 to 32. shutdownThe shutdown command disables an interface. The interface does - Selection from CISCO IOS in a Nutshell [Book] However, for security reasons, certain ports are disabled or in link-down state even when a device is online. Some IOS releases on some platforms do not require spaces but the spaces are universally accepted in my experience. 10. Configuring a Port-Channel Interface Range - Explore how to use NX-API REST API with the Cisco Nexus 3000 and 9000 Series switches Description Displays the statistical information specific to all interfaces or to a specific interface. 0 (3)I4 (1) on Cisco Nexus 9300 Series switches, you can create a port profile that contains many interface commands and apply that port profile to a range of interfaces. Port number—The physical port number on the module. (Range: 1–32 characters. A Jul 7, 2014 · A Cisco Nexus device periodically transmits UDLD frames to neighbor devices on LAN ports with UDLD enabled. The Cisco NX-OS software implicitly performs a graceful shutdown in response to either of the following actions for interfaces operating in the E port mode: If you shut down an interface. removed PC and added another PC and plugged it into f0/15 - still the port remains operational. Mar 28, 2022 · For example, if UDLD detects a unidirectional link, the port is shut down at runtime. Mar 7, 2014 · Hello, We have a wireless controller connected to a core switch via two port bundled together to form a port channel 2. By default, port-security will automatically shutdown the port when a new MAC address is detected, which is why we tuned the config above with 'violation restrict' and 'aging time 2'. Is there a command / way to use an "interface range" in ACI to shutdown a range of end devices Leaf interfaces or no shutdown interfaces? Jun 1, 2021 · This article aims to show you how to configure time-based port settings on your Cisco Business 220 Series Switch. Dec 11, 2024 · Entering a no switchport interface configuration command shuts down the interface and then re-enables it, which might generate messages on the device to which the interface is connected. The other three ports continue to remain enabled. Feb 6, 2018 · You may want to just shut down the uplink ports and the ports connecting to other core switches, upgrade the switch and then bring the uplink ports back online. Troublesho Dec 3, 2018 · Entering a no switchport interface configuration command shuts down the interface and then re-enables it, which might generate messages on the device to which the interface is connected. 16. Is there a way i can do this with one command? when im in cofigure terminal mode i dont know how i can select a range of interfaces as opposed to just one interface. 5 days ago · Cisco bug id CSCvs76682 - Interface "no shutdown" command does not show in the running-config after ISSU 8. In this tutorial, we will walk you through the step-by If we're talking access layer, I'd be careful about administratively shutting ports just because they are in a down state. Hope it is Sep 2, 2020 · See Cisco MDS 9000 Series NX-OS Fabric Configuration Guide for information about Failover scenarios for port channels and FSPF links. For example, if UDLD detects a unidirectional link, the port is shut down at runtime. On serial interfaces, this command causes the DTR signal to be dropped. I would also like the port to automatically enable 5 minutes before business open. This command not only brings interfaces online but also plays a crucial role in network troubleshooting, configuration, and Mar 18, 2025 · The Cisco Command-Line Interface (CLI) is a powerful tool for network administrators, providing a robust environment for configuring and managing Cisco network devices. If a time range is configured, it is effective only when the port is administratively Up. Feb 28, 2025 · This chapter contains the following sections: interface interface range shutdown operation time description speed duplex negotiation flowcontrol mdix back-pressure port jumbo-frame link-flap prevention clear counters set interface active errdisable recovery cause errdisable recovery interval errdisable recovery reset show interfaces configuration show interfaces status show interfaces Shutdown UNUSED PORTS using RANGE Command I Packet Tracer I CISCO CCNA I Tons OF Network Fun 👉Subscribe / @tonsofnetworkfun int range fa0/1-24, g0/1-2 shutdown show run Shutdown unused ports Sep 26, 2025 · This chapter contains the following sections: interface interface range shutdown operation time description speed duplex negotiation flowcontrol mdix back-pressure port jumbo-frame link-flap prevention clear counters set interface active errdisable recovery cause errdisable recovery interval errdisable recovery reset show interfaces configuration show interfaces status show interfaces When a port is in the error-disabled state because of an EtherChannel misconfiguration, you can bring it out of this state by entering the errdisable recovery cause channel-misconfig global configuration command, or you can manually re-enable it by entering the shutdown and no shut down interface configuration commands. Restrictions for Port Security With the default port security configuration, to bring all secure ports out of the error-disabled state, enter the errdisable recovery cause psecure-violation global configuration command, or manually reenable the port by entering the shutdown and no shut down interface configuration commands. The port will send prestandard BPDUs, but we recommend that you change the port configuration so that the interaction with the prestandard neighbor does not rely only on the autodetection mechanism. default interface fa1/0/1 default interface fa1/0/2 no interface po1 int range fa1/0/1-2 shut channel-group 1 mode on switchport mode trunk no shutdown * I recommend to use LaCP or PAgP instead default port-channel. Aug 13, 2005 · what i am trying to accomplish here is to configure half a dozen ports on a 3550 cisco switch to automatically shut down after business hours. Jul 4, 2017 · Hi Basically when configuring etherchannel everything must be the same, speed, duplex, kind of port, etc. Apr 25, 2018 · Command Interface Range Use This is the modern way to configure VLANs. Aug 12, 2021 · The other three ports are not usable and remain shut down. For FEX ports, the fex-id is included in the naming of the port itself as in ethernet 101/1/1 . However, the system retains all the VLAN-to-port mapping for that VLAN, and when you reenable, or recreate, the specified VLAN, the system automatically reinstates all the original ports to that VLAN. Sep 6, 2024 · Conclusion: Harnessing the 'no shutdown' Command for Network Efficiency Understanding and effectively using the 'no shutdown' command is a fundamental skill for any network administrator working with Cisco devices. Use the no form of this command to restart a disabled interface. shutdown Use the shutdown interface configuration command to disable an interface. For example, if a Catalyst 2960 switch has 24 ports and there are three Fast Ethernet connections in use, it is good practice to disable the 21 unused ports. Oct 22, 2021 · Beginning with 7. Time-Based Power over Ethernet (PoE) — PoE can be configured on the device for a specific period. Enter the clear port-security dynamic global configuration command to shutdown Use the shutdown interface configuration command to disable an interface. Mar 21, 2012 · Solved: hi all on a switch, when we have a vlan, we can do a command, vlan 100, shutdown, we can also do a command, interface vlan 100, shutdown what is the difference or is it the same ? Jan 17, 2019 · Getting StartedDefault Configuration The default configuration of your device depends on whether you have completed initial setup. Jul 28, 2017 · Hello all, I have always read how it is the best security practice to put unused ports on switch/router into shutdown state. Cisco’s Port Security feature can protect these in-use ports by mitigating attacks against the network and preventing unauthorized moves, adds, and changes by limiting the number of NAME—Specify the name of time-range settings. Feb 28, 2025 · This chapter contains the following sections: interface interface range shutdown operation time description speed duplex negotiation flowcontrol mdix back-pressure port jumbo-frame link-flap prevention clear counters set interface active errdisable recovery cause errdisable recovery interval errdisable recovery reset show interfaces configuration show interfaces status show interfaces Aug 13, 2021 · Hello. qqibyupjwqzikknyvzbtqwmaqdcebctbekgkdrcgfeufpphezdusjjbasxzjyjyziemcznwm