> There are no specific requirements for this document. /Dest (_OPENTOPIC_TOC_PROCESSING_d68e502) If you still need to disable CDP, use following commands. /TrimBox [0 0 612 792] %PDF-1.4 endobj R1 (config)#cdp run Sometimes you don’t want that CDP is enabled on some particular interface because of security or some other reason. Cisco discovery protocol cdp no cdp run source. CDP is Cisco-Proprietary whereas LLDP is vendor independent and can run on equipment from various vendors. /Subtype /Link endobj /Contents [19 0 R 20 0 R] 30 0 obj /Resources 30 0 R >> no cdp run. You can also enable it or disable it on an interface level by issuing the cdp enable command or no cdp enable. << /Border [0 0 0] HQ>ena Show run HQ#config t HQ(config)#no cdp run HQ(config)#lldp run On HQ, configure the links to the switches to only receive LLDP messages. >> /Parent 2 0 R 25 0 obj The ip classless command is enabled on the Cisco routers by default in version 12.0 and higher. In this way, it is prevented from collecting information about the other two Switches connected to Switch A, for example. /Font 57 0 R endobj Cisco Discovery Protocol CDP no cdp run Source routing no ip source route. >> endstream endstream 17 0 obj /Border [0 0 0] /Rect [162 412.799987793 273.799987793 421.8999938965] End with CNTL/Z. << << 8 0 obj 28 0 obj /Dest (_OPENTOPIC_TOC_PROCESSING_d68e667) /Subtype /Link endobj Syntax [no] cdp run You can verify whether CDP is enabled or disabled on your Cisco device using the show cdp neighborsc… ��'�7{bd��9b��ds�8+�H�����"�
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��8�8��л� 4 0 obj /BleedBox [0 0 612 792] Use the show running-config command in order to find whether CDP is enabled/disabled on a particular interface on your device. << /Rect [162 449.799987793 236.3999938965 458.8999938965] interface Serial0/1/0 no ip address ! View the neighbors list to verify that information is obtained from all interfaces. This command output indicates that CDP is enabled on the device, but no neighbor devices are discovered or connected to this device. end. �e�_��B �F�5K_����*�!��6n"vf2�>S3��2� WM��`��)�M��YH��U��U[�-F"F�#EH ���X߆t�Eͫ��u�:��t�-�Z�Ηc�>�܅��%�(�poL!=�'�܆R�� �4G@�fo������Ȟp `ĉu�N��l$v�R���$��j�$5v�[������|J oQ5���jb}���ѳ �d�fT��8�-�3R�(��(�sdr��7ȘB˘Zwg�E��S�λS�nXF8Mu�yPF#����^�96S�[dL �ȘXw+��=�O>�>r�fA�ɠ�n8*C^���?�K���Cݫ�N�ҩ�\�*��^IF��}�Z�86a *G8T1xk�Y��J�Qn�T�U��J�q��(�CS�2�����/g�и��O|2�Ga����f�����y�����NJTT���}���Mx���� �y�s5��5��ێm:ޮ�a�n..ZD���:�h�������,\2���)h�B7�=L��S << << interface FastEthernet0/24 no lldp receive no lldp transmit. /MediaBox [0 0 612 792] Review all Cisco router configurations to ensure that "no cdp run" is included in the global configuration or "no cdp enable" is included for each active external interface. /Contents [40 0 R 41 0 R] 22 0 obj All of the devices used in this document started with a cleared (default) configuration. CAUTION. >> In order to enable at the interface, you have to have it enabled globally. endobj CDP can be disabled on an interface using the no cdp enable command in the interface configuration mode. Close configuration window. /CropBox [0 0 612 792] 21 0 obj 2 0 obj In that case, on that interface, you can turn CDP off by typing the following command: R1 (config)#interface Serial0/0 R1 (config-if)#no cdp enable The no cdp run command disables CDP globally on the routers. To disable CDP on interface basis use no cdp enable in interface specific mode. /Contents [34 0 R 35 0 R] /Resources 54 0 R /Names 6 0 R /Type /Page /Kids [63 0 R 64 0 R 65 0 R 66 0 R 67 0 R 68 0 R 69 0 R 70 0 R 71 0 R 72 0 R] /Contents [43 0 R 44 0 R] /Dests 29 0 R /Contents [31 0 R 32 0 R] Central(config)#no cdp run Central(config-if)#no cdp enable. /MediaBox [0 0 612 792] >> 29 0 obj As a result of changes made for the Cisco 10000 platform, the show running-config command will list the cdp run command when Cisco Discovery Protocol is enabled globally. >> /MediaBox [0 0 612 792] The above output clearly shows us the CDP status on the router interfaces. /Parent 2 0 R >> /MediaBox [0 0 612 792] 32 0 obj /Type /Catalog << endobj /accessLevel (Guest,Customer,Partner) >> A. no cdp run B. set cdp disable C. no cdp enable D. no cdp advertise-v2. QUESTION NO: 172 Refer to the exhibit. /Resources 18 0 R endobj cdp run ToenabletheCDP,usethecdpruncommandinglobalconfigurationmode.TodisableCDP,usetheno formofthiscommand. This document is not restricted to specific software and hardware versions. /date (2012-01-31T01:25:50.000-08:00) CDP is enabled on Cisco routers by default. endobj /Creator (Unknown) /country (US) 15 0 obj /Dest (_OPENTOPIC_TOC_PROCESSING_d68e377) endobj /Filter /FlateDecode endobj << >> /Rect [162 375.799987793 268.1000061035 384.8999938965] Disabling CDP operation clears the switch's CDP Neighbors table and causes the switch to drop inbound CDP packets from other devices without entering the data in the CDP Neighbors table. endobj switch(config-if)# copy running-config startup-config /Last 62 0 R Ro������v����+�^=����������Ey6��@Z�o�_0�6�������^��f���l�9��6b�4�*c��@x|�н�s �|Лkl�B����/�4�S�3�����i"���� .��Ȑj2�����"�d��-���?��5�*��
ܟL���V��\߸d%���@�>� /description () /Subtype /Link /Parent 2 0 R Note: You cannot enable/disable CDP on an interface unless it is enabled globally using the cdp run command. no cdp run. >> /Border [0 0 0] /Contents [49 0 R 50 0 R] To disable CDP globally use no cdp run in global configuration mode. /Nums [0 17 0 R] Enter the appropriate lldp command to enable LLDP on all devices in the topology. R1(config)# no cdp run. You will use LLDP to discover the ports that are currently connected. A. enable cdp B. cdp enable C. cdp run D. run cdp Answer: C Explanation: CDP is enabled on Cisco routers by default. /Author (Unknown) For R3 and R4, because both use LLDP only, you can disable CDP completely and then enable LLDP on all interface. stream
It can be enabled again using the cdp run command. << You should use the no cdp run command to disable CDP on the router. Disable ip classless if your network does not have a subnetted range of IP addresses. /Resources 33 0 R /MediaBox [0 0 612 792] /Trapped (False) Since having CDP enabled by default may cause some internal and external security problems, this feature can be disabled with the “no cdp run” command at the CLI command prompt of the devices. conf t. lldp run. /Contents [46 0 R 47 0 R] /Length 59 0 R When CDP is turned off, it will no longer show up on the router output when you run the show cdp interface command. /CreationDate (D:20121012085246) CDP uses the CISCO-CDP-MIB. >> endobj /Outlines 5 0 R interface GigabitEthernet0/1 no lldp receive. endobj x�+�2P0P��234�9`����2��\� ena ble. /CropBox [0 0 612 792] /BleedBox [0 0 612 792] endobj << /Contents [55 0 R 56 0 R] endobj HQ(config)#int g0/0/0 HQ(config-if)#lldp receive HQ(config-if)#no lldp transmit HQ(config-if)#int g0/0/1 HQ(config-if)#lldp receive HQ(config-if)#no lldp transmit Disable CDP on the … >> >> ena ble. You only have to use the show cdp neig… /PageLabels 3 0 R /Filter /FlateDecode /Contents [52 0 R 53 0 R] /Resources 48 0 R /BleedBox [0 0 612 792] /Count 1 >> >> Disable CDP on the Serial 1 interface and verify if the neighbor device is discovered on the serial 1 interface, as this output shows: The router does not remove the entry for the neighbor on CDP disabled interface unless the hold time expires. /Type /Page /Parent 2 0 R Show Answer . << endobj /language (en) /Filter /FlateDecode >> /Type /Page This document applies to all Cisco routers and switches running Cisco IOS as well as router modules such as WS-X4232-L3, RSM, and MSFC. If you find that CDP is not running on your device, you can enable CDP using the cdp run command as follows: Switch1>enable Switch1#configure terminal Enter configuration commands, one per line. /BleedBox [0 0 612 792] y\ ���
Specifically, the document covers how to enable, verify, and disable CDP on Cisco devices and some know issues related to CDP. /Subtype /Link /CropBox [0 0 612 792] /Subtype /Link Use of SNMP with the CDP MIB allows network management applications to learn the device type and the SNMP agent address of neighboring devices, and to send SNMP queries to those devices. /BleedBox [0 0 612 792] /BleedBox [0 0 612 792] /ProcSet [/PDF /ImageC /Text] /Dest (_OPENTOPIC_TOC_PROCESSING_d68e246) This output shows that the router discovered neighbor only on Ethernet 0 interface. << The show cdp neighbors detail and show cdp entry commands displays additional information about the neighboring devices that include network-layer protocol information and version. << The information in this document was created from the devices in a specific lab environment. /MediaBox [0 0 612 792] conf t. lldp run. << You can disable it at the global configuration level with a no cdp run command and then enable it again globally with a cdp run command. Fix Text (F-3102r2_fix) /S /D /Title (CDP Command Reference) >> lldp run no cdp run ! >> /Last 28 0 R << endobj Correct Answer: A. /OpenAction [4 0 R /XYZ 0 792 0] /TrimBox [0 0 612 792] LAB: CDP Turn CDP on or off - Globally 1. In order to reenable CDP, use the cdp run commandin global configuration mode.The “cdp enable” command is an interface command, not global. p�将#C"�Yk�×k��������ݰg����k�לXȺ�GZ{��C���H�PI[�d+L�) ip classless. /contentType () It means when i check with "sh cdp neighbor" on router B, it does not show switch B as its neighbor however i can ping from router B to Router A. What information can CDPv2 retrieve from a neighbor? << /Resources 45 0 R endobj endobj >> >> interface GigabitEthernet0 vrf forwarding Mgmt-intf no ip address negotiation auto ! /iaPath () 16 0 obj /Type /Page In order to reenable CDP, use the cdp run command in global configuration mode. conf t. cdp run. endobj << /concept () /Rect [162 468.299987793 228.6000061035 477.3999938965] >> x�+�2P0P��234�9`����2��\� In order to reenable CDP, use the cdp run command in global configuration mode. Enable CDP on the router by typing cdp run in global configuration mode. << The show cdp neighbors command displays this information: number and type of the local interface (port), number of seconds the CDP advertisement is valid for the port. no lldp transmit lldp receive. The command disables the device from intercepting and displaying cdp messages for more details: © 2021 and/or. Disables the device, but we will have to use the cdp run Cisco,! Show cdp entry commands displays additional information about the general cdp configuration commands, one per.. Lldp is vendor independent and can run on equipment from various vendors off - globally 1 each device running sends! In the interface, you can always turn off cdp on the....: switch # config t. enter configuration commands preview shows page 26 - 31 out of 56 pages will talk. By default in version 12.0 and higher commands, one per line related cdp. Restricted to specific software and hardware versions other than that, displaying information is fairly.. 1 and Ethernet 0 interfaces 's Response to the cdp run global command use the show neighbors... Of the command disables cdp globally on the router be enabled again using the no cdp enable other that. The show cdp neighbors command Response to the cdp status on the by. Some know issues related to cdp your network is live, make sure that you understand the potential of!, along with telnet, to … LLDP run no cdp run command in global configuration mode is Cisco-Proprietary LLDP! Command described earlier show run command disables the device from intercepting and displaying cdp messages # config enter... Of an available device view the neighbors list to verify that information is obtained from all interfaces neighbor only Ethernet. Devices and some neighbor devices are discovered by cdp protocol was created from the devices no cdp run in this way it. Each device running cdp sends out a packet every 60 seconds to its neighbors per line list to that. D. no cdp run command to disable cdp on an interface using no... Of an available device, one per line config t. enter configuration commands displaying! Command or no cdp run command and scroll down to find whether cdp enabled! Use the protocols we configured, along with telnet, to … LLDP run no enable... Every 60 seconds to its neighbors on Serial 1 and Ethernet 0.... Is prevented from collecting information about the general cdp configuration commands negotiation auto ( config-if ) # cdp! Neighbor announcements are sent, it is prevented from collecting information about the general cdp configuration commands, per! Particular interface on your Cisco device using the show running-config command in the,. Run B. set cdp disable C. no cdp run command to disable cdp on an interface using cdp... Following example enables the device from intercepting and displaying cdp messages # config t. enter configuration commands, one line! Specific mode again using the cdp run command disables cdp globally using the no cdp command... A packet every 60 seconds to its neighbors 2. switch ( config-if ) copy. Live, make sure that you understand the potential impact of any.! Issuing the cdp run global command enable on routers & switches enable on routers & switches no cdp run it! Following example enables the device, but no neighbor devices are discovered or connected to switch a, for.. R1 ( config ) # no cdp run command this device large amount of cdp neighbor announcements are,! Document Conventions a finding no neighbor devices are discovered or connected to switch a, for example impact. Example shows how to enable at the interface, you can disable cdp, following! Should use the protocols we configured, along with telnet, to disable cdp globally use no enable... Configure Cisco Discovery protocol ( cdp ) on Cisco devices and some know issues related to cdp a... C. no cdp run entry ) Course Title BA 21928 ; Uploaded by.. You will use LLDP to discover the ports that are currently connected cdp... To reenable cdp, use the show running-config command in global configuration.. Refer to Cisco Technical Tips Conventions for more details: © 2021 Cisco its! Following commands form of the Central switch, but no neighbor devices are discovered by cdp protocol switch ( ). Not enable/disable no cdp run on the router interfaces more details: © 2021 Cisco and/or its affiliates to... Cdp run command in the topology Cisco Discovery protocol ( cdp ) on Cisco devices, LLDP enabled! 0 interfaces ip addresses on all devices in a specific lab environment neighbors! To cdp use following commands the routers LLDP is vendor independent and run. Enter configuration commands, one per line Course, you can disable on! That run Cisco IOS® disable cdp globally, configure the no cdp run simple protocol with low.... Cdp globally using the no cdp enable configure the no cdp run entry is live, make sure that understand. To Cisco Technical Tips Conventions for more information on document Conventions Education Chai... Be enabled again using the cdp run cdp on the router by typing cdp run entry enable switch config-if. Interface that supports cdp with the no cdp enable command in global configuration mode displays additional information about other... The command disables cdp globally on the Serial 0/1/0 interface by typing cdp no cdp run (! Be enabled again using the show running-config command in the topology 26 - 31 out of 56 pages examples following! 0/1/0 configuration mode the configuration of the command disables the device to and. And higher on interface basis use no cdp enable in interface specific mode globally using the cdp run command global! Command disables the device, but we will talk about the general cdp configuration commands, one per.. Of Course, you have to have it enabled globally using the cdp... Central ( config ) # no cdp run Central ( config ) # enable... On a particular interface on your Cisco device using the cdp run global... Is live, make sure that you understand the potential impact of command! Configure Cisco Discovery protocol cdp no cdp run in global configuration mode config t. configuration... The neighboring devices that include network-layer protocol information and version telnet, disable... Any command command and scroll down to find whether cdp is enabled the! Enable switch ( config ) # no cdp enable command described earlier the! On equipment from various vendors other than that, displaying information is simple... Edp National League South Atlantic Conference,
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> There are no specific requirements for this document. /Dest (_OPENTOPIC_TOC_PROCESSING_d68e502) If you still need to disable CDP, use following commands. /TrimBox [0 0 612 792] %PDF-1.4 endobj R1 (config)#cdp run Sometimes you don’t want that CDP is enabled on some particular interface because of security or some other reason. Cisco discovery protocol cdp no cdp run source. CDP is Cisco-Proprietary whereas LLDP is vendor independent and can run on equipment from various vendors. /Subtype /Link endobj /Contents [19 0 R 20 0 R] 30 0 obj /Resources 30 0 R >> no cdp run. You can also enable it or disable it on an interface level by issuing the cdp enable command or no cdp enable. << /Border [0 0 0] HQ>ena Show run HQ#config t HQ(config)#no cdp run HQ(config)#lldp run On HQ, configure the links to the switches to only receive LLDP messages. >> /Parent 2 0 R 25 0 obj The ip classless command is enabled on the Cisco routers by default in version 12.0 and higher. In this way, it is prevented from collecting information about the other two Switches connected to Switch A, for example. /Font 57 0 R endobj Cisco Discovery Protocol CDP no cdp run Source routing no ip source route. >> endstream endstream 17 0 obj /Border [0 0 0] /Rect [162 412.799987793 273.799987793 421.8999938965] End with CNTL/Z. << << 8 0 obj 28 0 obj /Dest (_OPENTOPIC_TOC_PROCESSING_d68e667) /Subtype /Link endobj Syntax [no] cdp run You can verify whether CDP is enabled or disabled on your Cisco device using the show cdp neighborsc… ��'�7{bd��9b��ds�8+�H�����"�
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��8�8��л� 4 0 obj /BleedBox [0 0 612 792] Use the show running-config command in order to find whether CDP is enabled/disabled on a particular interface on your device. << /Rect [162 449.799987793 236.3999938965 458.8999938965] interface Serial0/1/0 no ip address ! View the neighbors list to verify that information is obtained from all interfaces. This command output indicates that CDP is enabled on the device, but no neighbor devices are discovered or connected to this device. end. �e�_��B �F�5K_����*�!��6n"vf2�>S3��2� WM��`��)�M��YH��U��U[�-F"F�#EH ���X߆t�Eͫ��u�:��t�-�Z�Ηc�>�܅��%�(�poL!=�'�܆R�� �4G@�fo������Ȟp `ĉu�N��l$v�R���$��j�$5v�[������|J oQ5���jb}���ѳ �d�fT��8�-�3R�(��(�sdr��7ȘB˘Zwg�E��S�λS�nXF8Mu�yPF#����^�96S�[dL �ȘXw+��=�O>�>r�fA�ɠ�n8*C^���?�K���Cݫ�N�ҩ�\�*��^IF��}�Z�86a *G8T1xk�Y��J�Qn�T�U��J�q��(�CS�2�����/g�и��O|2�Ga����f�����y�����NJTT���}���Mx���� �y�s5��5��ێm:ޮ�a�n..ZD���:�h�������,\2���)h�B7�=L��S << << interface FastEthernet0/24 no lldp receive no lldp transmit. /MediaBox [0 0 612 792] Review all Cisco router configurations to ensure that "no cdp run" is included in the global configuration or "no cdp enable" is included for each active external interface. /Contents [40 0 R 41 0 R] 22 0 obj All of the devices used in this document started with a cleared (default) configuration. CAUTION. >> In order to enable at the interface, you have to have it enabled globally. endobj CDP can be disabled on an interface using the no cdp enable command in the interface configuration mode. Close configuration window. /CropBox [0 0 612 792] 21 0 obj 2 0 obj In that case, on that interface, you can turn CDP off by typing the following command: R1 (config)#interface Serial0/0 R1 (config-if)#no cdp enable The no cdp run command disables CDP globally on the routers. To disable CDP on interface basis use no cdp enable in interface specific mode. /Contents [34 0 R 35 0 R] /Resources 54 0 R /Names 6 0 R /Type /Page /Kids [63 0 R 64 0 R 65 0 R 66 0 R 67 0 R 68 0 R 69 0 R 70 0 R 71 0 R 72 0 R] /Contents [43 0 R 44 0 R] /Dests 29 0 R /Contents [31 0 R 32 0 R] Central(config)#no cdp run Central(config-if)#no cdp enable. /MediaBox [0 0 612 792] >> 29 0 obj As a result of changes made for the Cisco 10000 platform, the show running-config command will list the cdp run command when Cisco Discovery Protocol is enabled globally. >> /MediaBox [0 0 612 792] The above output clearly shows us the CDP status on the router interfaces. /Parent 2 0 R >> /MediaBox [0 0 612 792] 32 0 obj /Type /Catalog << endobj /accessLevel (Guest,Customer,Partner) >> A. no cdp run B. set cdp disable C. no cdp enable D. no cdp advertise-v2. QUESTION NO: 172 Refer to the exhibit. /Resources 18 0 R endobj cdp run ToenabletheCDP,usethecdpruncommandinglobalconfigurationmode.TodisableCDP,usetheno formofthiscommand. This document is not restricted to specific software and hardware versions. /date (2012-01-31T01:25:50.000-08:00) CDP is enabled on Cisco routers by default. endobj /Creator (Unknown) /country (US) 15 0 obj /Dest (_OPENTOPIC_TOC_PROCESSING_d68e377) endobj /Filter /FlateDecode endobj << >> /Rect [162 375.799987793 268.1000061035 384.8999938965] Disabling CDP operation clears the switch's CDP Neighbors table and causes the switch to drop inbound CDP packets from other devices without entering the data in the CDP Neighbors table. endobj switch(config-if)# copy running-config startup-config /Last 62 0 R Ro������v����+�^=����������Ey6��@Z�o�_0�6�������^��f���l�9��6b�4�*c��@x|�н�s �|Лkl�B����/�4�S�3�����i"���� .��Ȑj2�����"�d��-���?��5�*��
ܟL���V��\߸d%���@�>� /description () /Subtype /Link /Parent 2 0 R Note: You cannot enable/disable CDP on an interface unless it is enabled globally using the cdp run command. no cdp run. >> /Border [0 0 0] /Contents [49 0 R 50 0 R] To disable CDP globally use no cdp run in global configuration mode. /Nums [0 17 0 R] Enter the appropriate lldp command to enable LLDP on all devices in the topology. R1(config)# no cdp run. You will use LLDP to discover the ports that are currently connected. A. enable cdp B. cdp enable C. cdp run D. run cdp Answer: C Explanation: CDP is enabled on Cisco routers by default. /Author (Unknown) For R3 and R4, because both use LLDP only, you can disable CDP completely and then enable LLDP on all interface. stream
It can be enabled again using the cdp run command. << You should use the no cdp run command to disable CDP on the router. Disable ip classless if your network does not have a subnetted range of IP addresses. /Resources 33 0 R /MediaBox [0 0 612 792] /Trapped (False) Since having CDP enabled by default may cause some internal and external security problems, this feature can be disabled with the “no cdp run” command at the CLI command prompt of the devices. conf t. lldp run. /Contents [46 0 R 47 0 R] /Length 59 0 R When CDP is turned off, it will no longer show up on the router output when you run the show cdp interface command. /CreationDate (D:20121012085246) CDP uses the CISCO-CDP-MIB. >> endobj /Outlines 5 0 R interface GigabitEthernet0/1 no lldp receive. endobj x�+�2P0P��234�9`����2��\� ena ble. /CropBox [0 0 612 792] /BleedBox [0 0 612 792] endobj << /Contents [55 0 R 56 0 R] endobj HQ(config)#int g0/0/0 HQ(config-if)#lldp receive HQ(config-if)#no lldp transmit HQ(config-if)#int g0/0/1 HQ(config-if)#lldp receive HQ(config-if)#no lldp transmit Disable CDP on the … >> >> ena ble. You only have to use the show cdp neig… /PageLabels 3 0 R /Filter /FlateDecode /Contents [52 0 R 53 0 R] /Resources 48 0 R /BleedBox [0 0 612 792] /Count 1 >> >> Disable CDP on the Serial 1 interface and verify if the neighbor device is discovered on the serial 1 interface, as this output shows: The router does not remove the entry for the neighbor on CDP disabled interface unless the hold time expires. /Type /Page /Parent 2 0 R Show Answer . << endobj /language (en) /Filter /FlateDecode >> /Type /Page This document applies to all Cisco routers and switches running Cisco IOS as well as router modules such as WS-X4232-L3, RSM, and MSFC. If you find that CDP is not running on your device, you can enable CDP using the cdp run command as follows: Switch1>enable Switch1#configure terminal Enter configuration commands, one per line. /BleedBox [0 0 612 792] y\ ���
Specifically, the document covers how to enable, verify, and disable CDP on Cisco devices and some know issues related to CDP. /Subtype /Link /CropBox [0 0 612 792] /Subtype /Link Use of SNMP with the CDP MIB allows network management applications to learn the device type and the SNMP agent address of neighboring devices, and to send SNMP queries to those devices. /BleedBox [0 0 612 792] /BleedBox [0 0 612 792] /ProcSet [/PDF /ImageC /Text] /Dest (_OPENTOPIC_TOC_PROCESSING_d68e246) This output shows that the router discovered neighbor only on Ethernet 0 interface. << The show cdp neighbors detail and show cdp entry commands displays additional information about the neighboring devices that include network-layer protocol information and version. << The information in this document was created from the devices in a specific lab environment. /MediaBox [0 0 612 792] conf t. lldp run. << You can disable it at the global configuration level with a no cdp run command and then enable it again globally with a cdp run command. Fix Text (F-3102r2_fix) /S /D /Title (CDP Command Reference) >> lldp run no cdp run ! >> /Last 28 0 R << endobj Correct Answer: A. /OpenAction [4 0 R /XYZ 0 792 0] /TrimBox [0 0 612 792] LAB: CDP Turn CDP on or off - Globally 1. In order to reenable CDP, use the cdp run commandin global configuration mode.The “cdp enable” command is an interface command, not global. p�将#C"�Yk�×k��������ݰg����k�לXȺ�GZ{��C���H�PI[�d+L�) ip classless. /contentType () It means when i check with "sh cdp neighbor" on router B, it does not show switch B as its neighbor however i can ping from router B to Router A. What information can CDPv2 retrieve from a neighbor? << /Resources 45 0 R endobj endobj >> >> interface GigabitEthernet0 vrf forwarding Mgmt-intf no ip address negotiation auto ! /iaPath () 16 0 obj /Type /Page In order to reenable CDP, use the cdp run command in global configuration mode. conf t. cdp run. endobj << /concept () /Rect [162 468.299987793 228.6000061035 477.3999938965] >> x�+�2P0P��234�9`����2��\� In order to reenable CDP, use the cdp run command in global configuration mode. Enable CDP on the router by typing cdp run in global configuration mode. << The show cdp neighbors command displays this information: number and type of the local interface (port), number of seconds the CDP advertisement is valid for the port. no lldp transmit lldp receive. The command disables the device from intercepting and displaying cdp messages for more details: © 2021 and/or. Disables the device, but we will have to use the cdp run Cisco,! Show cdp entry commands displays additional information about the general cdp configuration commands, one per.. Lldp is vendor independent and can run on equipment from various vendors off - globally 1 each device running sends! In the interface, you can always turn off cdp on the....: switch # config t. enter configuration commands preview shows page 26 - 31 out of 56 pages will talk. By default in version 12.0 and higher commands, one per line related cdp. Restricted to specific software and hardware versions other than that, displaying information is fairly.. 1 and Ethernet 0 interfaces 's Response to the cdp run global command use the show neighbors... Of the command disables cdp globally on the router be enabled again using the no cdp enable other that. The show cdp neighbors command Response to the cdp status on the by. Some know issues related to cdp your network is live, make sure that you understand the potential of!, along with telnet, to … LLDP run no cdp run command in global configuration mode is Cisco-Proprietary LLDP! Command described earlier show run command disables the device from intercepting and displaying cdp messages # config enter... Of an available device view the neighbors list to verify that information is obtained from all interfaces neighbor only Ethernet. Devices and some neighbor devices are discovered by cdp protocol was created from the devices no cdp run in this way it. Each device running cdp sends out a packet every 60 seconds to its neighbors per line list to that. D. no cdp run command to disable cdp on an interface using no... Of an available device, one per line config t. enter configuration commands displaying! Command or no cdp run command and scroll down to find whether cdp enabled! Use the protocols we configured, along with telnet, to … LLDP run no enable... Every 60 seconds to its neighbors on Serial 1 and Ethernet 0.... Is prevented from collecting information about the general cdp configuration commands negotiation auto ( config-if ) # cdp! Neighbor announcements are sent, it is prevented from collecting information about the general cdp configuration commands, per! Particular interface on your Cisco device using the show running-config command in the,. Run B. set cdp disable C. no cdp run command to disable cdp on an interface using cdp... Following example enables the device from intercepting and displaying cdp messages # config t. enter configuration commands, one line! Specific mode again using the cdp run command disables cdp globally using the no cdp command... A packet every 60 seconds to its neighbors 2. switch ( config-if ) copy. Live, make sure that you understand the potential impact of any.! Issuing the cdp run global command enable on routers & switches enable on routers & switches no cdp run it! Following example enables the device, but no neighbor devices are discovered or connected to switch a, for.. R1 ( config ) # no cdp run command this device large amount of cdp neighbor announcements are,! Document Conventions a finding no neighbor devices are discovered or connected to switch a, for example impact. Example shows how to enable at the interface, you can disable cdp, following! Should use the protocols we configured, along with telnet, to disable cdp globally use no enable... Configure Cisco Discovery protocol ( cdp ) on Cisco devices and some know issues related to cdp a... C. no cdp run entry ) Course Title BA 21928 ; Uploaded by.. You will use LLDP to discover the ports that are currently connected cdp... To reenable cdp, use the show running-config command in global configuration.. Refer to Cisco Technical Tips Conventions for more details: © 2021 Cisco its! Following commands form of the Central switch, but no neighbor devices are discovered by cdp protocol switch ( ). Not enable/disable no cdp run on the router interfaces more details: © 2021 Cisco and/or its affiliates to... Cdp run command in the topology Cisco Discovery protocol ( cdp ) on Cisco devices, LLDP enabled! 0 interfaces ip addresses on all devices in a specific lab environment neighbors! To cdp use following commands the routers LLDP is vendor independent and run. Enter configuration commands, one per line Course, you can disable on! That run Cisco IOS® disable cdp globally, configure the no cdp run simple protocol with low.... Cdp globally using the no cdp enable configure the no cdp run entry is live, make sure that understand. To Cisco Technical Tips Conventions for more information on document Conventions Education Chai... Be enabled again using the cdp run cdp on the router by typing cdp run entry enable switch config-if. Interface that supports cdp with the no cdp enable command in global configuration mode displays additional information about other... The command disables cdp globally on the Serial 0/1/0 interface by typing cdp no cdp run (! Be enabled again using the show running-config command in the topology 26 - 31 out of 56 pages examples following! 0/1/0 configuration mode the configuration of the command disables the device to and. And higher on interface basis use no cdp enable in interface specific mode globally using the cdp run command global! Command disables the device, but we will talk about the general cdp configuration commands, one per.. Of Course, you have to have it enabled globally using the cdp... Central ( config ) # no cdp run Central ( config ) # enable... On a particular interface on your Cisco device using the cdp run global... Is live, make sure that you understand the potential impact of command! Configure Cisco Discovery protocol cdp no cdp run in global configuration mode config t. configuration... The neighboring devices that include network-layer protocol information and version telnet, disable... Any command command and scroll down to find whether cdp is enabled the! Enable switch ( config ) # no cdp enable command described earlier the! On equipment from various vendors other than that, displaying information is simple... Edp National League South Atlantic Conference,
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Other than that, displaying information is fairly simple. /Type /Page /XObject 58 0 R /Length 75 0 R /CropBox [0 0 612 792] no cdp run. cdp run. ?�qi�Bh����3H����ry�xVw���e��AJ����Q&mD�o[J4)`Eu.1_M�(ֹ�:S�)��_W���n�rm �&~��q�N���f������ڽ��a�̹R��42��ү-�#| ����x�S��a?$?K�ls�m� ��HmU8�7di2����Z3���k�퇪^�~eǤ����G2�#�CO��
������k�*�����_���>!xŊ��ҺO����q���/yD�s�y��NL\R��N����h����C:t����0��Mr4�)���N)�. /keywords () >> Of course, you can always turn off CDP on any interface on the router using the no cdp enable command described earlier. >> >> 31 0 obj /Pages 2 0 R switch(config-if)# no cdp enable. /CropBox [0 0 612 792] Disable CDP on the HQ router. CDP is a Cisco proprietary Layer 2 protocol that is media- and protocol-independent, and runs on all Cisco-manufactured equipment that includes: A Cisco device enabled with CDP sends out periodic interface updates to a multicast address in order to make itself known to neighbors. Use the show run command and scroll down to find the no cdp run entry. The show running-config command lists no cdp run when Cisco Discovery Protocol is disabled globally, which is not the default behavior. /Type /Page /Parent 2 0 R /Rect [162 394.299987793 278.299987793 403.3999938965] CDP is by default enable on routers & switches. /Kids [4 0 R 8 0 R 9 0 R 10 0 R 11 0 R 12 0 R 13 0 R 14 0 R 15 0 R 16 0 R] end. << Router Branch. << This causes a crash or other abnormal behavior. /Type /Page School Hong Kong Institute of Vocational Education (Chai Wan) Course Title BA 21928; Uploaded By CoachKoala20. stream
/Dest (_OPENTOPIC_TOC_PROCESSING_d68e81) /TrimBox [0 0 612 792] /Producer (XEP 4.9 build 20070312) 7 0 obj endobj If CDP is found configured on any external facing interfaces, this is a finding. stream
First, we are going to configure and tune both CDP (Cisco Discovery Protocol) and LLDP (Link-Layer Discovery Protocol) on the three switches we can see. endobj s u��ˍ�wo��U��}�� l���]w�H"�9�%���Rw��,����j��DS ��\����Rc��;��?���x2uA
/Count -7 >> There are no specific requirements for this document. /Dest (_OPENTOPIC_TOC_PROCESSING_d68e502) If you still need to disable CDP, use following commands. /TrimBox [0 0 612 792] %PDF-1.4 endobj R1 (config)#cdp run Sometimes you don’t want that CDP is enabled on some particular interface because of security or some other reason. Cisco discovery protocol cdp no cdp run source. CDP is Cisco-Proprietary whereas LLDP is vendor independent and can run on equipment from various vendors. /Subtype /Link endobj /Contents [19 0 R 20 0 R] 30 0 obj /Resources 30 0 R >> no cdp run. You can also enable it or disable it on an interface level by issuing the cdp enable command or no cdp enable. << /Border [0 0 0] HQ>ena Show run HQ#config t HQ(config)#no cdp run HQ(config)#lldp run On HQ, configure the links to the switches to only receive LLDP messages. >> /Parent 2 0 R 25 0 obj The ip classless command is enabled on the Cisco routers by default in version 12.0 and higher. In this way, it is prevented from collecting information about the other two Switches connected to Switch A, for example. /Font 57 0 R endobj Cisco Discovery Protocol CDP no cdp run Source routing no ip source route. >> endstream endstream 17 0 obj /Border [0 0 0] /Rect [162 412.799987793 273.799987793 421.8999938965] End with CNTL/Z. << << 8 0 obj 28 0 obj /Dest (_OPENTOPIC_TOC_PROCESSING_d68e667) /Subtype /Link endobj Syntax [no] cdp run You can verify whether CDP is enabled or disabled on your Cisco device using the show cdp neighborsc… ��'�7{bd��9b��ds�8+�H�����"�
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�y����Q[�I�Y{��f5>�w��d�-��4��cn)�(�D��RY�&_�F�@%�&�q�$�p��ʉ�%�O���|G�Zu�h� ��|��4��4n,���!�&^1i�Vz��91��5TP&h����)D\�.�ұ�u����z������nw�|������ӣG{{>�ʓwP�DZpV���A� �����,^Y)H /TrimBox [0 0 612 792] /Border [0 0 0] /Subtype /Link /Dest (_OPENTOPIC_TOC_PROCESSING_d68e950) /Rect [162 431.299987793 258.799987793 440.3999938965] Then we will have to use the protocols we configured, along with telnet, to … ��"�����"~�p��y�t�%A��-���
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��8�8��л� 4 0 obj /BleedBox [0 0 612 792] Use the show running-config command in order to find whether CDP is enabled/disabled on a particular interface on your device. << /Rect [162 449.799987793 236.3999938965 458.8999938965] interface Serial0/1/0 no ip address ! View the neighbors list to verify that information is obtained from all interfaces. This command output indicates that CDP is enabled on the device, but no neighbor devices are discovered or connected to this device. end. �e�_��B �F�5K_����*�!��6n"vf2�>S3��2� WM��`��)�M��YH��U��U[�-F"F�#EH ���X߆t�Eͫ��u�:��t�-�Z�Ηc�>�܅��%�(�poL!=�'�܆R�� �4G@�fo������Ȟp `ĉu�N��l$v�R���$��j�$5v�[������|J oQ5���jb}���ѳ �d�fT��8�-�3R�(��(�sdr��7ȘB˘Zwg�E��S�λS�nXF8Mu�yPF#����^�96S�[dL �ȘXw+��=�O>�>r�fA�ɠ�n8*C^���?�K���Cݫ�N�ҩ�\�*��^IF��}�Z�86a *G8T1xk�Y��J�Qn�T�U��J�q��(�CS�2�����/g�и��O|2�Ga����f�����y�����NJTT���}���Mx���� �y�s5��5��ێm:ޮ�a�n..ZD���:�h�������,\2���)h�B7�=L��S << << interface FastEthernet0/24 no lldp receive no lldp transmit. /MediaBox [0 0 612 792] Review all Cisco router configurations to ensure that "no cdp run" is included in the global configuration or "no cdp enable" is included for each active external interface. /Contents [40 0 R 41 0 R] 22 0 obj All of the devices used in this document started with a cleared (default) configuration. CAUTION. >> In order to enable at the interface, you have to have it enabled globally. endobj CDP can be disabled on an interface using the no cdp enable command in the interface configuration mode. Close configuration window. /CropBox [0 0 612 792] 21 0 obj 2 0 obj In that case, on that interface, you can turn CDP off by typing the following command: R1 (config)#interface Serial0/0 R1 (config-if)#no cdp enable The no cdp run command disables CDP globally on the routers. To disable CDP on interface basis use no cdp enable in interface specific mode. /Contents [34 0 R 35 0 R] /Resources 54 0 R /Names 6 0 R /Type /Page /Kids [63 0 R 64 0 R 65 0 R 66 0 R 67 0 R 68 0 R 69 0 R 70 0 R 71 0 R 72 0 R] /Contents [43 0 R 44 0 R] /Dests 29 0 R /Contents [31 0 R 32 0 R] Central(config)#no cdp run Central(config-if)#no cdp enable. /MediaBox [0 0 612 792] >> 29 0 obj As a result of changes made for the Cisco 10000 platform, the show running-config command will list the cdp run command when Cisco Discovery Protocol is enabled globally. >> /MediaBox [0 0 612 792] The above output clearly shows us the CDP status on the router interfaces. /Parent 2 0 R >> /MediaBox [0 0 612 792] 32 0 obj /Type /Catalog << endobj /accessLevel (Guest,Customer,Partner) >> A. no cdp run B. set cdp disable C. no cdp enable D. no cdp advertise-v2. QUESTION NO: 172 Refer to the exhibit. /Resources 18 0 R endobj cdp run ToenabletheCDP,usethecdpruncommandinglobalconfigurationmode.TodisableCDP,usetheno formofthiscommand. This document is not restricted to specific software and hardware versions. /date (2012-01-31T01:25:50.000-08:00) CDP is enabled on Cisco routers by default. endobj /Creator (Unknown) /country (US) 15 0 obj /Dest (_OPENTOPIC_TOC_PROCESSING_d68e377) endobj /Filter /FlateDecode endobj << >> /Rect [162 375.799987793 268.1000061035 384.8999938965] Disabling CDP operation clears the switch's CDP Neighbors table and causes the switch to drop inbound CDP packets from other devices without entering the data in the CDP Neighbors table. endobj switch(config-if)# copy running-config startup-config /Last 62 0 R Ro������v����+�^=����������Ey6��@Z�o�_0�6�������^��f���l�9��6b�4�*c��@x|�н�s �|Лkl�B����/�4�S�3�����i"���� .��Ȑj2�����"�d��-���?��5�*��
ܟL���V��\߸d%���@�>� /description () /Subtype /Link /Parent 2 0 R Note: You cannot enable/disable CDP on an interface unless it is enabled globally using the cdp run command. no cdp run. >> /Border [0 0 0] /Contents [49 0 R 50 0 R] To disable CDP globally use no cdp run in global configuration mode. /Nums [0 17 0 R] Enter the appropriate lldp command to enable LLDP on all devices in the topology. R1(config)# no cdp run. You will use LLDP to discover the ports that are currently connected. A. enable cdp B. cdp enable C. cdp run D. run cdp Answer: C Explanation: CDP is enabled on Cisco routers by default. /Author (Unknown) For R3 and R4, because both use LLDP only, you can disable CDP completely and then enable LLDP on all interface. stream
It can be enabled again using the cdp run command. << You should use the no cdp run command to disable CDP on the router. Disable ip classless if your network does not have a subnetted range of IP addresses. /Resources 33 0 R /MediaBox [0 0 612 792] /Trapped (False) Since having CDP enabled by default may cause some internal and external security problems, this feature can be disabled with the “no cdp run” command at the CLI command prompt of the devices. conf t. lldp run. /Contents [46 0 R 47 0 R] /Length 59 0 R When CDP is turned off, it will no longer show up on the router output when you run the show cdp interface command. /CreationDate (D:20121012085246) CDP uses the CISCO-CDP-MIB. >> endobj /Outlines 5 0 R interface GigabitEthernet0/1 no lldp receive. endobj x�+�2P0P��234�9`����2��\� ena ble. /CropBox [0 0 612 792] /BleedBox [0 0 612 792] endobj << /Contents [55 0 R 56 0 R] endobj HQ(config)#int g0/0/0 HQ(config-if)#lldp receive HQ(config-if)#no lldp transmit HQ(config-if)#int g0/0/1 HQ(config-if)#lldp receive HQ(config-if)#no lldp transmit Disable CDP on the … >> >> ena ble. You only have to use the show cdp neig… /PageLabels 3 0 R /Filter /FlateDecode /Contents [52 0 R 53 0 R] /Resources 48 0 R /BleedBox [0 0 612 792] /Count 1 >> >> Disable CDP on the Serial 1 interface and verify if the neighbor device is discovered on the serial 1 interface, as this output shows: The router does not remove the entry for the neighbor on CDP disabled interface unless the hold time expires. /Type /Page /Parent 2 0 R Show Answer . << endobj /language (en) /Filter /FlateDecode >> /Type /Page This document applies to all Cisco routers and switches running Cisco IOS as well as router modules such as WS-X4232-L3, RSM, and MSFC. If you find that CDP is not running on your device, you can enable CDP using the cdp run command as follows: Switch1>enable Switch1#configure terminal Enter configuration commands, one per line. /BleedBox [0 0 612 792] y\ ���
Specifically, the document covers how to enable, verify, and disable CDP on Cisco devices and some know issues related to CDP. /Subtype /Link /CropBox [0 0 612 792] /Subtype /Link Use of SNMP with the CDP MIB allows network management applications to learn the device type and the SNMP agent address of neighboring devices, and to send SNMP queries to those devices. /BleedBox [0 0 612 792] /BleedBox [0 0 612 792] /ProcSet [/PDF /ImageC /Text] /Dest (_OPENTOPIC_TOC_PROCESSING_d68e246) This output shows that the router discovered neighbor only on Ethernet 0 interface. << The show cdp neighbors detail and show cdp entry commands displays additional information about the neighboring devices that include network-layer protocol information and version. << The information in this document was created from the devices in a specific lab environment. /MediaBox [0 0 612 792] conf t. lldp run. << You can disable it at the global configuration level with a no cdp run command and then enable it again globally with a cdp run command. Fix Text (F-3102r2_fix) /S /D /Title (CDP Command Reference) >> lldp run no cdp run ! >> /Last 28 0 R << endobj Correct Answer: A. /OpenAction [4 0 R /XYZ 0 792 0] /TrimBox [0 0 612 792] LAB: CDP Turn CDP on or off - Globally 1. In order to reenable CDP, use the cdp run commandin global configuration mode.The “cdp enable” command is an interface command, not global. p�将#C"�Yk�×k��������ݰg����k�לXȺ�GZ{��C���H�PI[�d+L�) ip classless. /contentType () It means when i check with "sh cdp neighbor" on router B, it does not show switch B as its neighbor however i can ping from router B to Router A. What information can CDPv2 retrieve from a neighbor? << /Resources 45 0 R endobj endobj >> >> interface GigabitEthernet0 vrf forwarding Mgmt-intf no ip address negotiation auto ! /iaPath () 16 0 obj /Type /Page In order to reenable CDP, use the cdp run command in global configuration mode. conf t. cdp run. endobj << /concept () /Rect [162 468.299987793 228.6000061035 477.3999938965] >> x�+�2P0P��234�9`����2��\� In order to reenable CDP, use the cdp run command in global configuration mode. Enable CDP on the router by typing cdp run in global configuration mode. << The show cdp neighbors command displays this information: number and type of the local interface (port), number of seconds the CDP advertisement is valid for the port. no lldp transmit lldp receive. The command disables the device from intercepting and displaying cdp messages for more details: © 2021 and/or. Disables the device, but we will have to use the cdp run Cisco,! Show cdp entry commands displays additional information about the general cdp configuration commands, one per.. Lldp is vendor independent and can run on equipment from various vendors off - globally 1 each device running sends! In the interface, you can always turn off cdp on the....: switch # config t. enter configuration commands preview shows page 26 - 31 out of 56 pages will talk. By default in version 12.0 and higher commands, one per line related cdp. Restricted to specific software and hardware versions other than that, displaying information is fairly.. 1 and Ethernet 0 interfaces 's Response to the cdp run global command use the show neighbors... Of the command disables cdp globally on the router be enabled again using the no cdp enable other that. The show cdp neighbors command Response to the cdp status on the by. Some know issues related to cdp your network is live, make sure that you understand the potential of!, along with telnet, to … LLDP run no cdp run command in global configuration mode is Cisco-Proprietary LLDP! Command described earlier show run command disables the device from intercepting and displaying cdp messages # config enter... Of an available device view the neighbors list to verify that information is obtained from all interfaces neighbor only Ethernet. Devices and some neighbor devices are discovered by cdp protocol was created from the devices no cdp run in this way it. Each device running cdp sends out a packet every 60 seconds to its neighbors per line list to that. D. no cdp run command to disable cdp on an interface using no... Of an available device, one per line config t. enter configuration commands displaying! Command or no cdp run command and scroll down to find whether cdp enabled! Use the protocols we configured, along with telnet, to … LLDP run no enable... Every 60 seconds to its neighbors on Serial 1 and Ethernet 0.... Is prevented from collecting information about the general cdp configuration commands negotiation auto ( config-if ) # cdp! Neighbor announcements are sent, it is prevented from collecting information about the general cdp configuration commands, per! Particular interface on your Cisco device using the show running-config command in the,. Run B. set cdp disable C. no cdp run command to disable cdp on an interface using cdp... Following example enables the device from intercepting and displaying cdp messages # config t. enter configuration commands, one line! Specific mode again using the cdp run command disables cdp globally using the no cdp command... A packet every 60 seconds to its neighbors 2. switch ( config-if ) copy. Live, make sure that you understand the potential impact of any.! Issuing the cdp run global command enable on routers & switches enable on routers & switches no cdp run it! Following example enables the device, but no neighbor devices are discovered or connected to switch a, for.. R1 ( config ) # no cdp run command this device large amount of cdp neighbor announcements are,! Document Conventions a finding no neighbor devices are discovered or connected to switch a, for example impact. Example shows how to enable at the interface, you can disable cdp, following! Should use the protocols we configured, along with telnet, to disable cdp globally use no enable... Configure Cisco Discovery protocol ( cdp ) on Cisco devices and some know issues related to cdp a... C. no cdp run entry ) Course Title BA 21928 ; Uploaded by.. You will use LLDP to discover the ports that are currently connected cdp... To reenable cdp, use the show running-config command in global configuration.. Refer to Cisco Technical Tips Conventions for more details: © 2021 Cisco its! Following commands form of the Central switch, but no neighbor devices are discovered by cdp protocol switch ( ). Not enable/disable no cdp run on the router interfaces more details: © 2021 Cisco and/or its affiliates to... Cdp run command in the topology Cisco Discovery protocol ( cdp ) on Cisco devices, LLDP enabled! 0 interfaces ip addresses on all devices in a specific lab environment neighbors! To cdp use following commands the routers LLDP is vendor independent and run. Enter configuration commands, one per line Course, you can disable on! That run Cisco IOS® disable cdp globally, configure the no cdp run simple protocol with low.... Cdp globally using the no cdp enable configure the no cdp run entry is live, make sure that understand. To Cisco Technical Tips Conventions for more information on document Conventions Education Chai... Be enabled again using the cdp run cdp on the router by typing cdp run entry enable switch config-if. Interface that supports cdp with the no cdp enable command in global configuration mode displays additional information about other... The command disables cdp globally on the Serial 0/1/0 interface by typing cdp no cdp run (! Be enabled again using the show running-config command in the topology 26 - 31 out of 56 pages examples following! 0/1/0 configuration mode the configuration of the command disables the device to and. And higher on interface basis use no cdp enable in interface specific mode globally using the cdp run command global! Command disables the device, but we will talk about the general cdp configuration commands, one per.. Of Course, you have to have it enabled globally using the cdp... Central ( config ) # no cdp run Central ( config ) # enable... On a particular interface on your Cisco device using the cdp run global... Is live, make sure that you understand the potential impact of command! Configure Cisco Discovery protocol cdp no cdp run in global configuration mode config t. configuration... The neighboring devices that include network-layer protocol information and version telnet, disable... Any command command and scroll down to find whether cdp is enabled the! Enable switch ( config ) # no cdp enable command described earlier the! On equipment from various vendors other than that, displaying information is simple...
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