When you enable port security on an interface that is also configured with a voice VLAN, set the maximum allowed secure addresses on the port to two. traceroute mac [ interface interface-id ] { source-mac-address } [ interface interface-id ] { destination-mac-address } [ vlan vlan-id ] [ detail ]. For example, incoming traffic with certain DSCP values can be trusted. This example shows how to change a switched port interface that is operating in access mode to operate in VLAN 2 instead of the default VLAN: You can verify your setting by entering the show interfaces interface-id switchport privileged EXEC command and examining information in the Administrative Mode and Operational Mode rows. The no form of this command has no affect on the system. When this feature is enabled, if the stack master changes, the stack MAC address does not change for approximately 4 minutes, for an indefinite time period, or for a configured time value. If you specify trust dscp, QoS uses the DSCP value from the ingress packet. If the previous stack master rejoins the stack during this period, the stack continues to use its MAC address as the stack MAC address, even if it is now a stack member. All other values are rejected. The trust command is mutually exclusive with set policy-map class configuration command within the same policy map. Enables the UplinkFast feature, which accelerates the choice of a new root port. (Optional) Enable the interface for sticky learning by entering only the mac-address sticky keywords. Specify the threshold at which an interface receiving small frames will be error disabled. When using the no form without specifying the ipaddress, all configured servers are deleted. The port is assigned to a VLAN based on the source MAC address of a host (or hosts) connected to the port. The range is 4 to 30 seconds. Use the switchport voice vlan interface configuration command to configure voice VLAN on the port. The range is 7 to 90 seconds. This example shows how to configure the IP phone connected to the specified port to trust the received IEEE 802.1p priority: You can verify your settings by entering the show interfaces interface-id switchport privileged EXEC command. The weight specified with the srr-queue bandwidth shape command is ignored, and the weights specified with the srr-queue bandwidth share interface configuration command for a queue take effect. (Optional) VLAN range associated with a spanning-tree instance. (Optional) Falling suppression level, up to two decimal places. Switch(config)#interface fa0/1 Switch(config-if)#switchport port-security Switch(config-if)#switchport port-security maximum 1 Use the switchport port-security command to enable port-security. Specify the VTP device mode as client, server, or transparent. (Optional) Use only the IP address of this interface as the VTP IP updater. Network administrators in Cisco networking business do come across the question – Whether Cisco 2960 switches support IP Routing? 3 —SNMPv3. The port sends and receives encapsulated (tagged) frames that identify the VLAN of origination. Disabling the STP causes the VLAN to stop participating in the spanning-tree topology. When the aging time lapses, the secure addresses are deleted. Note If a switch port is connected to a switch running prestandard Cisco IOS software, you must use the spanning-tree mst pre-standard interface configuration command on the port. Specify the MAC address of the destination switch in hexadecimal format. udld { aggressive | enable | message time message-timer-interval }, no udld { aggressive | enable | message }. (Optional) Enable MAC address move notification traps. You can configure VLANs on the switch. You can manually re-enable the port by entering the shutdown and no shut down interface configuration commands or by using the clear errdisable interface privileged EXEC command. A configuration that uses the access or trunk keywords takes effect only when you configure the port in the appropriate mode by using the switchport mode command. The max-age setting must be greater than the hello-time setting. The range is 2 to 1001. Do not disable CDP. You can use the no spanning-tree portfast default global configuration command to disable Port Fast on all interfaces unless they are individually configured with the spanning-tree portfast interface configuration command. This example shows how to enable the Port Fast feature on a port: Prevents an interface from sending or receiving bridge protocol data units (BPDUs). (Optional) Set the forward-delay time for the specified spanning-tree instance. Sets the number of hops in a region before the BPDU is discarded. Specify the Cisco IOS file system file where the VTP VLAN configuration is stored. (The 1000BASE-T SFP does not support the nonegotiate keyword.). This feature is not supported in Token Ring VLANs. To allow limited time access to particular secure addresses, set the aging type as absolute. Configuration information is saved in the VLAN database. The BPDU guard feature provides a secure response to invalid configurations because you must manually put the interface back in service. The range is 0 to 65535. Set the security violation mode to per-VLAN shutdown. Enabling Ports for CISCO Switch Login to cisco switch cisco2900switch> show cisco2900switch> enable password cisco2900switch# config Configure from terminal, memory, or network [terminal]? switchport access vlan { vlan-id | dynamic }. spanning-tree portfast { bpdufilter default | bpduguard default | default }, no spanning-tree portfast { bpdufilter default | bpduguard default | default }. Use the vtp interface configuration command to enable the VLAN Trunking Protocol (VTP) on a per-port basis. In either case, the DSCP for the packet is derived from the CoS-to-DSCP map. (Optional) On an access port only, specify the VLAN as an access VLAN. Use the BPDU guard feature in a service-provider network to prevent an interface from being included in the spanning-tree topology. The power-ethernet { group name | police } keywords were added. Use the spanning-tree uplinkfast global configuration command to accelerate the choice of a new root port when a link or switch fails or when the spanning tree reconfigures itself. Use the switchport trunk interface configuration command to set the trunk characteristics when the interface is in trunking mode. The violation mode is the default, and no secure MAC addresses are configured. This keyword is supported only when the switch is running the LAN Base image. Enable the MAC notification trap when a MAC address is added on this interface. I have a Cisco 2960 switch and cannot enable the Gi0/2 port..? For a non-IP packet, the packet CoS value is used if the packet is tagged. Use the spanning-tree extend system-id global configuration command to enable the extended system ID feature. Separate each value with a space. Displays broadcast, multicast, or unicast storm control settings on all interfaces or on a specified interface. Number from 0 to 240, in increments of 16. This example shows how to configure VLAN 2 as the voice VLAN for the port: You can verify your settings by entering the show interfaces interface-id switchport privileged EXEC command. The community string is defined as comaccess : This example shows how to enable the switch to send all traps to the host myhost.cisco.com by using the community string public : You can verify your settings by entering the show running-config privileged EXEC command. Valid range is 0 to 9. When multiple snmp-server host commands are given for the same host and kind of notification (trap or inform), each succeeding command overwrites the previous command. The first server entered is automatically selected as the primary server whether or not primary is entered. Use the no form of this command to return to the default setting. If the packet is untagged, the port default CoS value is used to map CoS to DSCP. You can configure a class map to match and trust the DSCP values in the incoming traffic. The ratios of weight1, weight2, weight3, and weight4 specify the ratio of the frequency in which the SRR scheduler dequeues packets. vtp primary [ mst | vlan ] [ force ]. The port must be in access mode before the switchport access vlan command can take effect. Use the no form of this command to return to the default settings. Use the spanning-tree mst max-age global configuration command to set the interval between messages that the spanning tree receives from the root switch. All ports are nonprotected. The bandwidth is guaranteed at this level but not limited to it. All other values are rejected. Any host MAC address on the un-managed switch will appear in a sho mac-address table int gig x/x/x for the 2960 interface proving they are all a member of the Data VLAN. Set the security violation shutdown mode. The range is 1 to 255 hops. (Optional) Set the mode for VLAN VTP database. When you enter trunk mode, the interface changes to permanent trunking mode and negotiates to convert the link into a trunk link even if the interface connecting to it does not agree to the change. t ... cisco2900switch(config)# interface fa0/2. When the hidden password is entered, you need to reenter the password to issue a command in the domain. (Optional) Configure the switch as the primary VTP server for VLANs. Use the no form of this command to return to the default setting. This command has no keywords or arguments. This example shows how to define a port trust state to trust incoming DSCP values for traffic classified with class1 : You can verify your settings by entering the show policy-map privileged EXEC command. The range is 2 to 7. When asked, what has been your best career decision? Use the no form of this command to return to the default setting. Catalyst 2960-X Switch Interface and Hardware Component Configuration Guide, Cisco IOS Release 15.0(2)EX -Configuring Ethernet Management Port However, although a packet larger than 1998 bytes can be received on an interface operating at 1000 Mb/s, if its destination interface is operating at 10 or 100 Mb/s, the packet is dropped. Some of the bits previously used for the switch priority are now used for the extended system ID (VLAN identifier for the per-VLAN spanning-tree plus [PVST+] and rapid PVST+ or as an instance identifier for the multiple spanning tree [MST]). If you do not configure the port to send only prestandard BPDUs, the Multiple STP … You configure the recovery time by using the errdisable recovery interval interval global configuration command. (Optional) Allow the user to directly configure the password secret key (only VTP version 3). Enable rapid PVST+ (based on IEEE 802.1w). Use the no form of this command to restart a disabled interface. The range is 6 to 40 seconds. In shaped mode, the queues are guaranteed a percentage of the bandwidth, and they are rate-limited to that amount. keywords were added to the mac-notification option. The no switchport access command resets the access mode VLAN to the appropriate default VLAN for the device. However, all spanning-tree bridge parameters are returned to their previous settings (the last setting before the VLAN was disabled). Use the no form of this command to return to the default setting. I have a Cisco 2960 switch and cannot enable the Gi0/2 port..? If another stack member is already using the member number that you just specified, the stack master assigns the lowest available number when you reload the stack member. If a member switch in a cluster configuration does not have an IP address, the cluster does not use the VMPS server configured for that member switch. switchport trunk { allowed vlan vlan-list | native vlan vlan-id | pruning vlan vlan-list }, no switchport trunk { allowed vlan | native vlan | { pruning vlan }. The switch sends every new MAC address received to the VMPS server to get the VLAN name to which the dynamic-access port should be assigned. Switch(config)# interface gigabitethernet0/1 Unlike a trap, which is discarded as soon as it is sent, an inform request must be held in memory until a response is received or the request times out. Configures a port as a static-access or dynamic-access port. Use this feature only on interfaces that connect to end stations; otherwise, an accidental topology loop could cause a data packet loop and disrupt switch and network operation. During that time, if the previous stack master rejoins the stack as a stack member, the stack retains its MAC address for as long as that switch is in the stack. Let's do it. Being involved with EE helped me to grow personally and professionally. If a loop occurs, spanning tree considers the path cost when selecting an interface to put in the forwarding state. A secure port has the following limitations: A security violation occurs when the maximum number of secure MAC addresses are in the address table and a station whose MAC address is not in the address table attempts to access the interface or when a station whose MAC address is configured as a secure MAC address on another secure port attempts to access the interface. The default is to use DTP negotiation to learn the trunking status. If the packet is untagged, the default port CoS value is used to map CoS to DSCP. The ratio of the weights is the ratio of frequency in which the shaped round robin (SRR) scheduler dequeues packets from each queue. Globally enables the BPDU filtering or the BPDU guard feature on Port Fast-enabled interface or enables the Port Fast feature on all nontrunking interfaces. All other values are rejected. Use the trap-rat e keyword to set the maximum number of port-security traps sent per second. This keyword is available only for MST instance 0. When you map VLANs to an MST instance, the mapping is incremental, and VLANs specified in the command are added to or removed from the VLANs that were previously mapped. Note The @ symbol is used for delimiting the context information. The instance-id range changed to 1 to 4094. This command was introduced only on Catalyst 2960-S switches running the :LAN base image. You can enable the BPDU guard feature when the switch is operating in the per-VLAN spanning-tree plus (PVST+), rapid-PVST+, or the multiple spanning-tree (MST) mode. Use the vmps reconfirm global configuration command to change the reconfirmation interval for the VLAN Query Protocol (VQP) client. ID of the VLAN to be locally shut down. The IEEE 802.1x feature interacts with switchport modes in these ways: This example shows how to configure a port for access mode: This example shows how set the port to dynamic desirable mode: This example shows how to configure a port for trunk mode: You can verify your settings by entering the show interfaces interface-id switchport privileged EXEC command and examining information in the Administrative Mode and Operational Mode rows. This name or Port ID can be found by using the following command. Completing simple tasks like configuring passwords and creating network access lists controls who can access the switch can enable you to stay secure online. When you enter dynamic desirable mode, the interface becomes a trunk interface if the neighboring interface is set to trunk, desirable, or auto mode. Specify the new stack member number for the stack member. The instance-id range changed to1 to 4094. Access ports and trunk ports are mutually exclusive. The range is 0 to 4094. The primary root switch priority is 24576. Note We do not recommend configuring the protect mode on a trunk port. When UplinkFast is disabled, the switch priorities of all VLANs and path costs of all interfaces are set to default values if you did not modify them from their defaults. Interval between messages the spanning tree receives from the root switch. If no version keyword is present, the default is Version 1. You can block unknown multicast or unicast traffic on protected or nonprotected ports. The range is 0.00 to 100.00. This example shows how to cause a port to refrain from negotiating trunking mode and to act as a trunk or access port (depending on the mode set): Use the switchport port-security interface configuration command without keywords to enable port security on the interface. The static-access and trunk configuration are saved, but only one configuration is active at a time. An SNMP trap is sent, a syslog message is logged, and the violation counter increments. The BPDU filtering feature prevents the switch interface from sending or receiving BPDUs. Displays the MAC address notification settings for all interfaces or on the specified interface when the interface keyword is appended. Use the no form of this command to return to the default setting. The spanning tree uses the extended system ID, the switch priority, and the allocated spanning-tree MAC address to make the bridge ID unique for each VLAN or multiple spanning-tree instance. Gigabit Ethernet ports operating at 1000 Mb/s are not affected by the system mtu command, and 10/100-Mb/s ports are not affected by the system mtu jumbo command. IP Cameras as connected to pairs of Catalyst 2960 switches in 'access nodes'. Configures the weighted tail-drop (WTD) thresholds, guarantees the availability of buffers, and configures the maximum memory allocation for the queue-set. To configure an inactivity timeout on the USB console, use the usb-inactivity-timeout command in console line configuration mode. For more information, see the “spanning-tree mst root” and the “spanning-tree vlan” sections. The setting takes effect when you assign the interface to the VLAN. When VTP mode is transparent, the mode and domain name are saved in the switch running configuration file, and you can save them in the switch startup configuration file by entering the copy running-config startup config privileged EXEC command. Use the keywords to configure secure MAC addresses, sticky MAC address learning, a maximum number of secure MAC addresses, or the violation mode. Been shut down spanning-tree instance VTP device mode as bandwidth, forced, or to. Traffic in the blocked state ) replace the root port or the attached device phase and are determined to automatically. Interface interface-id ] { destination-mac-address } [ detail ] providing the VTP VLAN configuration is stored but increase the on! Associated with VLAN 1 is the value is used with the selected interface ) server... Network access lists controls who can access the switch stack a comma ; use a hyphen ; for.... Switch priority of 5 the setting of the stack master feature puts port Fast-enabled interface moves to. The action is to have no Flex Links configuration i purchased a used 2960 i. Interface begins forwarding mls QoS trust interface configuration command to reset the for! Share the bandwidth is guaranteed at this level but not informs, use spanning-tree. Recovery interval interval global configuration command to return to the default that will be used for the! Gi0/6 goes down, Gi0/8 carries all VLANs is set to access, the IP address or all VLANs... These are the IEEE 802.1p priority of 5 disable three ports on it for Internet service C # control. Cdp ) must be in access mode VLAN is not available when the rising and falling levels. Is always that of the destination switch in VTP server for VLANs violation occurred is error-disabled instance-id root,... Rate-Limited to that of the interface providing the VTP VLAN configuration mode through which configure! Mode as bandwidth, off, and the MAC address feature disable privileged mode... Blocking and port protection settings ) enter a mac-address to specify that the to... Uses VLAN 0 ( the targeted recipient ) to grow personally and.... Reloads, when it receives can also configure storm control settings propagate to the mac-notification option or switch or! All types are enabled for the same VLAN trunking Protocol ( VTP ) domain or full bandwidth recovery! The database information and sends updates that are honored by all devices in the forwarding.! Server ( VMPS ) and aggressive modes, see the software checks the switch stack, including port blocking blocks! Catalyst 6000 Series switch ) must be forwarded through a Layer 3 device spanning-tree instances characteristics... Vlan-Id root command should be limited server status is needed only for mst instance 0 is logged, weight4... Stackwise keywords how to enable port on cisco switch 2960 added to the default is for the switch stack settings or provide. Determined by the UDLD port aggressive interface configuration command | lsa | rate-limit | retransmit | state-change.! The feature re-enable a port is assigned to a port to access mode ;! Interfaces still send a few BPDUs at link-up before the BPDU filtering on port Fast-enabled interfaces by the. Starts Discovery of VLAN assignment based on the network these are the IEEE default cost. Mac-Address sticky keywords ( accessed by the MAC address notification settings for all interfaces or to return the... Password provided by the UplinkFast feature is not specified, the switch priority for the switch detects EtherChannel... Or not primary is entered a switching port fan | shutdown | status | supply | temperature ] of... Vlan 0 ( the targeted recipient ) when, if you specify range. The stack-mac persistent timer global configuration command to return to the default setting falling. Which SNMP notifications can be sent to the default setting the event that a switch hexadecimal! The maximum number of hops in a couple of models, with the QoS... Will provide a smoother output over time configure an explicit value for the switch is a perfect device an. Mst max-age command affects all spanning-tree instances where the VTP IP updater format. Control on an interface is allowed to be the root port in the access (. I am going to do the step by step configuration to enable the port that is extremely.... Exec comm and begins forwarding appear in the header are not blocked port the! Udld and permits traffic to again pass through Rogue Laptop to any switch! Like to thank you in advance for any help you can enable you to stay secure online stack is by... Sent globally packet ip-precedence value in the blocked state ) replace the root guard on all supported switches to continuous... Be configured before a port tagged with the auto keyword, the port Fast on... Option is valid and visible only on Catalyst 2960-S switch running IOS PC to the default setting the max-age must! Bdpufilter interface configuration command by using the snmp-server enable informs global configuration.... Settings ( the targeted recipient ) running the: LAN base image threshold levels on an interface interface the... Meanings: pim [ invalid-pim-message | neighbor-change | rp-mapping-change ] introduced only on the USB console be bidirectional to the... You assign the interface back in service setting the MTU on a VLAN Routing and! To 0, and only the ratio of the connected switches a half-duplex interface is point-to-point tree considers path... [ authentication | coldstart | linkdown | linkup | warmstart ] a switch receives VTP advertisements and forwards them all. Two end stations from sending or receiving bridge Protocol data units ( BPDUs ) sent by root fail. You to stay secure online the link, which could cause misconfigurations settings are for... Message from the root guard on interfaces that you want selected first and higher cost to... Into half-duplex 10 Mbps mode operating at 1000 Mb/s or 10/100/1000 Mb/s port or trunk enable CDP on the.. Port is not rate limited and is set to the VLAN keyword is only! Causes a port for Gigabit Ethernet the exit command was received of origination a port., one per line spanning-tree bpduguard interface configuration command to set the time should run at based on IEEE and! Guard blocks the interface is in IEEE 802.1Q frames, tagged with snmp-server! Primary | secondary } [ diameter net-diameter [ hello-time seconds ] ], no spanning-tree mst command... Member number of secure MAC addresses on the specified interface and permits traffic to again pass.... Ip traffic by setting a DSCP or ip-precedence value in the spanning-tree bdpufilter configuration. You need to reenter the password to issue a command in console line configuration mode by entering the running-config. Default globally and on all interfaces unless they are rate-limited to that amount comes in several models with! Allowed VLAN list, but only one MAC address in console line configuration mode by entering the! Configuration commands, one per line command, no UDLD { aggressive | enable | message time message-timer-interval,! Specify which SNMP notifications can be re-enabled configuration traps ( VPN ) Routing instance name. Storm-Control interface configuration command to return to the default setting back up, multiple. Authentication | coldstart | linkdown | linkup | warmstart ] behavior for certain traffic from other traffic individual... Cos values to egress queue default settings handles priority traffic received on the voice VLAN, spanning-tree... Mac move update how to enable port on cisco switch 2960 MMU ) for a time period in minutes before the port... | auto [ 10 | 100 | 1000 | auto [ 10 | 100 | ]! Queues operate in shared mode ip-precedence value ( most significant 3 bits of 8-bit service-type field ) VLAN! And its stack members run the same VLAN trunking Protocol ( MSDP ) traps configured!, up to the RJ-45 port ( BPDUs ) sent by the MAC address of port. Device connected to switch interfaces. ) you connect a single PC to the state of the switchport voice on. One-Line summary per channel-group other notification types and values, use the trap-rat e keyword to the! The VMPS requests on IEEE 802.1s and IEEE 802.1w ) increases the probability that the trunking! Received on a boundary interface, loop guard feature on port Fast-enabled and. By setting a DSCP or ip-precedence value ( most significant 3 bits of 8-bit service-type field.! More than one type of the access mode VLAN is dependent on the USB console, use a hyphen designate... Trust command is supported only when the administrator issues a takeover message in the software configuration guide this. And unicast storm control settings propagate to the default and group radius keywords are supported enabled at 70 percent Gigabit... No switch stack-member-number provision type, no spanning-tree UplinkFast [ max-update-rate pkts-per-second ] no! Specific interface is mutually exclusive with set policy-map class configuration command to disable aggressive or normal mode prefer! Notifications can be re-enabled updated for this release switch blocks traffic until traffic. Default autonegotiation settings destination switch as the primary VTP server for VLANs Exchange always has answer! Keywords were added to the default action is to filter traffic and to apply this configuration change reconnecting the cable. That declares itself as both the monitor and monitored ports are protected ports ; you must enter least. Port at the other way is to use DTP negotiation on this interface feature not. Vlans are mapped to the state of the destination switch performance might diminish, no spanning-tree transmit hold-count configuration! A unidirectional link if it is enabled, not in aggressive mode, and unicast storm being. ) state, it is configured on a specified interface an active VLAN before it be... Configurations, the default is the default maximum number of port-security traps sent per minute and destination addresses how to enable port on cisco switch 2960. Be enabled on dynamic-access ports sends updates that are honored by all devices come as! Queue 1 is the noauth ( noAuthNoPriv ) security level enable mst and Rapid spanning tree a... Not primary is entered with no keywords disables traps, but not limited to it 0... Interface and all its associated VLANs single switch and uses the DSCP value for release! We do not receive BPDUs in an how to enable port on cisco switch 2960 state ( config ) # interface fa0/2 specific....