line protocol on interface changed state to downdavid gunderson obituary
How can I explain to my manager that a project he wishes to undertake cannot be performed by the team? When R2 becomes the active router all the traffic from the hosts to the servers is routed through R2. Planned Maintenance scheduled March 2nd, 2023 at 01:00 AM UTC (March 1st, admin state Vs link state from a network engineer stand point, Cisco Catalyst cluster heartbeat switch issue - increasing input errors. Its telling me port-security is the reason. Lets check the interface that connects to H2: Interface Fa0/3 that is connected to H2 is also down. A POS interface with PPP or HDLC encapsulation supports two mechanisms to alert you of a link failure: Layer 2 keepalives and SONET-layer alarms. I've tried everything, a new cable etc and when I changed the LAN port everything worked! I configured port security in the example above, so it only allows MAC address aaaa.bbbb.cccc. But In production network when we take WAN connectivity(Multiple segment) from provider its not possible to ensure end to end right fiber and SFP. - edited Interface FastEthernet0/1, changed state to up %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to up. I think this is because they use a lower priority than our core switches ("0" I guess because our core switches have 4096). Instead of reading 1253 pdfs from Cisco in 10min everything was understood with simple and interesting examples. The fault is likely at the remote end or an interoperability issue between the two devices. If the router and port ASICs are properly initialised the interface must come up and self ping must work. Thus, clocking is set to internal on one side and to default to line on the other end. The sc0 should always be up after the switch boots. ASR 1000 Series Aggregation Services Routers. Keepalives take longer to report a problem than the inherent SONET alarm structure. Ask a question or join the discussion by visiting our Community Forum, Get Full Access to our 758 Cisco Lessons Now, FastEthernet0/1 is down, line protocol is down (notconnect), Half-duplex, Auto-speed, media type is 10/100BaseTX, FastEthernet0/3 is down, line protocol is down (notconnect), Auto-duplex, 10Mb/s, media type is 10/100BaseTX, Port Status : Secure-shutdown, How to configure a trunk between switches, Cisco DTP (Dynamic Trunking Protocol) Negotiation, Spanning-Tree TCN (Topology Change Notification), Unicast Flooding due to Asymmetric Routing, How to configure port-security on Cisco Switch, Cisco Small Business Switch VLAN Configuration, RMON Statistics Collection on Cisco Catalyst Switch, Check the SFP or GBIC status by issuing the. The standby track command allows you to specify another interface on the router for the HSRP process to monitor in order to alter the HSRP priority for a given group. As you can see, it is now down. *Jun 15 01:32:19.759: %SYS-5-CONFIG_I: Configured from memory by console*Jun 15 01:32:20.179: %LINEPROTO-5-UPDOWN: Line protocol on Interface NVI0, changed state to up*Jun 15 01:32:20.723: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan613, changed state to down*Jun 15 01:32:21.115: %LINK-5-CHANGED: Interface Embedded-Service-Engine0/0, changed state to administratively down*Jun 15 01:32:22.147: %LINEPROTO-5-UPDOWN: Line protocol on Interface Embedded-Service-Engine0/0, changed state to down*Jun 15 01:32:22.919: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/0/0, changed state to down*Jun 15 01:32:22.919: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/0/1, changed state to down*Jun 15 01:32:22.919: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/0/2, changed state to down*Jun 15 01:32:22.919: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/0/3, changed state to down*Jun 15 01:32:23.591: %SYS-5-RESTART: System restarted --Cisco IOS Software, C2900 Software (C2900-UNIVERSALK9-M), Version 15.4(3)M3, RELEASE SOFTWARE (fc2)Technical Support: http://www.cisco.com/techsupportCopyright (c) 1986-2015 by Cisco Systems, Inc.Compiled Fri 05-Jun-15 13:24 by prod_rel_team*Jun 15 01:32:23.631: %SNMP-5-COLDSTART: SNMP agent on host Router-Mitra-2 is undergoing a cold start*Jun 15 01:32:24.555: %CRYPTO-6-ISAKMP_ON_OFF: ISAKMP is OFF*Jun 15 01:32:24.555: %CRYPTO-6-GDOI_ON_OFF: GDOI is OFF*Jun 15 01:32:24.555: %CRYPTO-6-ISAKMP_ON_OFF: ISAKMP is OFF*Jun 15 01:32:24.555: %CRYPTO-6-GDOI_ON_OFF: GDOI is OFF*Jun 15 01:32:24.555: %CRYPTO-6-ISAKMP_ON_OFF: ISAKMP is ON*Jun 15 01:32:25.287: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan1, changed state to up*Jun 15 01:32:26.251: %LINK-3-UPDOWN: Interface GigabitEthernet0/0/1, changed state to up*Jun 15 01:32:26.271: %LINK-3-UPDOWN: Interface GigabitEthernet0/0/0, changed state to up*Jun 15 01:32:27.251: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/0/1, changed state to up*Jun 15 01:32:27.271: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/0/0, changed state to up*Jun 15 01:32:55.271: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan613, changed state to up*Jun 15 01:33:02.227: %SEC_LOGIN-5-LOGIN_SUCCESS: Login Success [user: admin] [Source: 10.1.191.51] [localport: 23] at 08:33:02 WIB Thu Jun 15 2017*Jun 15 01:34:26.295: %SEC_LOGIN-5-LOGIN_SUCCESS: Login Success [user: admin] [Source: 10.1.10.2] [localport: 23] at 08:34:26 WIB Thu Jun 15 2017*Jun 15 01:35:20.695: %SYS-6-LOGOUT: User admin has exited tty session 388(10.1.191.51)*Jun 15 01:35:47.567: %SYS-6-LOGOUT: User admin has exited tty session 389(10.1.10.2)*Jun 15 01:36:15.639: %SEC_LOGIN-5-LOGIN_SUCCESS: Login Success [user: admin] [Source: 10.1.191.200] [localport: 23] at 08:36:15 WIB Thu Jun 15 2017*Jun 15 01:36:36.651: %SEC_LOGIN-5-LOGIN_SUCCESS: Login Success [user: admin] [Source: 172.30.60.246] [localport: 23] at 08:36:36 WIB Thu Jun 15 2017Router-Mitra-2#exit, Thank you for your respone, i am sorry at that i have panic, and cant think clearly so i have restart the router, Hiif it happens again to any of your devices if you collect the show tech it contains nearly everything enough usually to see the problem before rebooting , unfortunately without syslog or any locallos collectedit may be very difficult to determine what happened, as its a router may be worth sending the logs to an internal pc or server, In this morning I have case which make my router totally down, then I try to turn power off the button and turn power on my router and its solved. During this time, you monitored log messages from your router and switch directly from each device's console. All rights reserved. Then, PPP must send network control protocol (NCP) packets to choose and configure one or more network-layer protocols. I finally noticed that the other router interface it was connected to had no keep alive. who is the root bridge here ? On these switches, the autostate feature is enabled by default and can be disabled. Here is an example of debug ppp negotiation output when you receive a TERMREQ packet: This section describes a sample troubleshooting scenario for a POS link using PPP encapsulation. The best answers are voted up and rise to the top, Not the answer you're looking for? *Jun 15 01:32:17.619: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan1, changed state to down *Jun 15 01:32:17.851: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/0, changed state to up . The protocol line state for the VLAN interfaces will come up when the first L2 port (non-router port, that is, not 15/1 or 16/1) belonging to the corresponding VLAN link comes up and is in spanning-treeforwarding state. The interfaces/subinterfaces will go down unless sc0 is on the VLAN, or there is another L3 module in the chassis with an interface/subinterface in the VLAN. Can you confirm that at least some of the interfaces are connected to devices that are powered up and attempting to connect to the router? Well assume the computers are configured correctly and there are no issues there. It might be easier if the interface could recover itself after a certain time. For example, consider this configuration: An HSRP priority of 120 is configured with the standby priority command and HSRP is configured to track the state of two interfaces, Serial0 and Serial1. Are there conventions to indicate a new item in a list? So I think it may affect layer 2. Browse other questions tagged, Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site. Issue the following command to see what Catalyst 4000 L3 services module interfaces have been shut down or brought up by the autostate feature: Issue the following command to disable the autostate feature (this is a hidden command): Issue the following command to re-enable the autostate feature: Perform these troubleshooting steps if the VLAN interface is down. In each case, a higher value is of greater priority. This phrase has several connotation. Refer to Understanding Loopback Modes on Cisco Routers for guidance. When a lower priority active router receives a Coup message or a Hello message from an active, higher priority router, the router changes to the Speak state and sends a resign message. If you are unlucky its possible that your interface goes down. Keep in mind that a Gigabit interface doesnt support half-duplex. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. VLAN trunking between Juniper EX -> Cisco Catalyst -> and Cisco Router. debug ppp packetShows PPP packets being sent and received. If you are lucky you might get a duplex message through CDP that tells you that there is a duplex mismatch. Trap logging: level informational, 44 message lines logged Logging Source-Interface: VRF Name: *Jan 2 00:00:04.247: %IOS_LICENSE_IMAGE_APPLICATION-6-LICENSE_LEVEL: Module name = c2900 Next reboot level = ipbasek9 and License = ipbasek9*Jan 2 00:00:04.451: %IOS_LICENSE_IMAGE_APPLICATION-6-LICENSE_LEVEL: Module name = c2900 Next reboot level = securityk9 and License = securityk9*Jun 15 01:31:55.639: c3600_scp_set_dstaddr2_idb(184)add = 80 name is Embedded-Service-Engine0/0*Jun 15 01:32:09.175: %CTS-6-ENV_DATA_START_STATE: Environment Data Download in start state*Jun 15 01:32:12.043: %PA-3-PA_INIT_FAILED: Performance Agent failed to initialize (Missing Data License)*Jun 15 01:32:12.067: %VPN_HW-6-INFO_LOC: Crypto engine: onboard 0 State changed to: Initialized *Jun 15 01:32:12.071: %VPN_HW-6-INFO_LOC: Crypto engine: onboard 0 State changed to: Enabled *Jun 15 01:32:16.803: %LINK-3-UPDOWN: Interface GigabitEthernet0/0, changed state to up*Jun 15 01:32:16.803: %LINK-3-UPDOWN: Interface GigabitEthernet0/1, changed state to up*Jun 15 01:32:17.619: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan1, changed state to down*Jun 15 01:32:17.851: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/0, changed state to up*Jun 15 01:32:17.851: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/1, changed state to up*Jun 15 01:32:18.963: %SYS-6-CLOCKUPDATE: System clock has been updated from 01:32:18 UTC Thu Jun 15 2017 to 08:32:18 WIB Thu Jun 15 2017, configured from console by console. this can only confirm based on some more inputs. With local loopback the TX is connected to the RX at the port level inside the router. This is the symptom of a VLAN interface being in up/down status. Note:The autostate feature enhancement for multi-RSM scenarios in one chassis is enhanced in 6.1.2. This output illustrates the packet exchange captured with debug ppp negotiation during LCP's link establishment phase. The line protocol is down because the interface is in the transition state (listening->learning to forwarding). Try moving the connection to a different switch port to see whether the problem follows the move. Troubleshoot. You can use the show standby command to verify this: Next, the second tracked interfaceSerial 1is brought down: This again reduces the HSRP priority by 10from 110 to a value of 100. When both these tracked serial interfaces (serial 0 and serial 1) go down, the resultant priority is 100. In this morning I have case which make my router totally down, then I try to turn power off the button and turn power on my router and its solved, but I need to know what the root cause of this problem, I have attached my router log. Customers Also Viewed These Support Documents. No, it is point-to-point at layer-3. It only takes a minute to sign up. Configure the interface in local loopback. A better answer would include the reasons. The protocol line state for the management interface VLAN on the RSM will always be up. 09:23 AM. Planned Maintenance scheduled March 2nd, 2023 at 01:00 AM UTC (March 1st, Will a Cisco 2514 router work properly with a Cisco Catalyst 3500 series switch? The Telecordia GR-253 specification, which defines SONET, discusses HDLC-over-SONET Mapping (see Issue 3, Section 3.4.2.3, pp.3-59.) Was Galileo expecting to see so many stars? Line Protocol Is Down With PPP RFC 1661 defines PPP as a protocol. These LCP packets include these key fields: Code9 for Echo-Request and 10 for Echo-Reply. As well as helping to identify that the line protocol is down, it explains the show and debug commands to use to troubleshoot the issue for both Point-to-Point Protocol (PPP) and high-level data link control (HDLC) encapsulation. If you know there is a module in there and it has config that you need to erase it . Consider this sample topology: This sample log output was captured after the fiber cabling on GSRb's POS 1/0 interface was removed. Here is an example of debug ppp negotiation when keepalives are enabled: PPP can terminate the link at any time. Priority is determined first by the configured priority value, and then by the IP address. What tool to use for the online analogue of "writing lecture notes on a blackboard"? One of these is for a 2.5Gbps link that the switch was plugged into. Is quantile regression a maximum likelihood method? Exceptions may be present in the documentation due to language that is hardcoded in the user interfaces of the product software, language used based on RFP documentation, or language that is used by a referenced third-party product. The last MAC address seen on the interface is 000c.2928.5c6c. Corgon-6000# Mar 11 12:11:23.406: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan151, changed state to up. Does Cosmic Background radiation transmit heat? If they are not, a possible timing problem exists on the interface card or in the network. Cisco ASR 1000 Series Aggregation Services Routers, View with Adobe Reader on a variety of devices, View in various apps on iPhone, iPad, Android, Sony Reader, or Windows Phone, View on Kindle device or Kindle app on multiple devices, There are many reasons why an interface does not come up on a cisco router. It uses these configurations: Note:These debugs were captured on two routers in a back-to-back lab setup. In fact, the VLAN 2 root bridge (we're using PVST+) is not one of our core switches as it should be but is a device part of a third-party partner infrastructure with which one we're connected using a L2 layer. Does Cosmic Background radiation transmit heat? Ask a question or join the discussion by visiting our Community Forum, Get Full Access to our 758 Cisco Lessons Now, Last Source Address:Vlan : 0090.cc0e.5023:1, FastEthernet0/1 is down, line protocol is down (err-disabled), How to configure a trunk between switches, Cisco DTP (Dynamic Trunking Protocol) Negotiation, Spanning-Tree TCN (Topology Change Notification), Unicast Flooding due to Asymmetric Routing, How to configure port-security on Cisco Switch, Cisco Small Business Switch VLAN Configuration, RMON Statistics Collection on Cisco Catalyst Switch. Refer to bug ID CSCdu07244 (registered customers only) for more information. Thanks for contributing an answer to Server Fault! Suspicious referee report, are "suggested citations" from a paper mill? R3(config-router)# The Tunnel is Up once I added the loopback into ospf, but here is the question: What's the point of a tunnel if I can simply add 1.1.1.1 and 3.3.3.3 into ospf area 0 ? If the cable is faulty, it could cause up / down status. My router is a FRITZ!Box 6690 Cable with four LAN ports. Changing it to auto-speed brings back the interface to the land of the living. Is quantile regression a maximum likelihood method? Find answers to your questions by entering keywords or phrases in the Search bar above. RFC 2615 specifies the use of PPP encapsulation over SONET or SDH links. Why is there a memory leak in this C++ program and how to solve it, given the constraints? Note that this interface is running in half duplex. If it doesn't, consider the switch port defective. Learn more about Stack Overflow the company, and our products. The logs I have provided above are from "CORE SWITCH 2", but the logs on the CORE SWITCH 1 seem to show the same errors. The open-source game engine youve been waiting for: Godot (Ep. - VLAN exists in the vlan db and is active, - An access port is inside this VLAN and its status is always connected, - There is not entries regarding STP in the syslog, - There's no error (input, CRC, etc) when checking the interface counters. You can use this to only allow specific MAC addresses. An access switch is connected to a core switch with an access port in the VLAN 2. Note these caveats when you troubleshoot line protocol problems with POS interfaces: A PA-POS interface might reset continuously after the encapsulation is changed from PPP to HDLC. All rights reserved. Note: Time stamp difference between logs when the line protocol on GigabitEthernet4/10 went up, . The examples are pulled for an ethernet link on ASR1000 router. 2023 Cisco and/or its affiliates. debug ppp negotiationShows PPP packets transmitted during PPP startup, where PPP options are negotiated. Exceptions may be present in the documentation due to language that is hardcoded in the user interfaces of the product software, language used based on RFP documentation, or language that is used by a referenced third-party product. Since the only port (3/1) is diabled, !--- the line protocol for interface VLAN 151 is down. This diagram illustrates the protocol stack used on a POS interface. Thanks, 66 more replies! Line protocol is down on Cisco Router / IOS 12.2, Cisco 3560X Switch MAC reported with same IP as other equipment, Packet Tracer: Ethernet interface up/down, Cisco switch showing zero input/output while there is traffic. PPP reacts more quickly to link state changes since LCP comes down immediately. This problem is resolved in Cisco bug ID CSCdp86387 (registered customers only) . Until the Magic-Number Configuration Option is successfully negotiated, the Magic-Number must be transmitted as zero. Protocol field values in the "c***" to "f***" range identify packets as link-layer Control Protocols (such as LCP). Has Microsoft lowered its Windows 11 eligibility criteria? The frame format for PPP in HDLC-like framing is shown in this figure. Do you agree that this may cause the VLAN line going up/down as the states of the ports are changing due to this misconfiguration ? The autostate feature is synchronized with the STP state. In this configuration, keepalives are the mechansim to bring the link down. 10:55 PM On some CatOS platforms, this feature can be disabled in order to allow redundancy in special scenarios. Ill show you what happens in a bit. 2. this could me while spanning-tree convergence time. Could you please more briefly about what kind of issue will form and How we will identify SFP/FIBER Mode mismatch from my end ?? as in example? Perform a local loop test first, and then a remote test. Our interfaces of course! If the R1 Serial 0 interface goes down, the R1 HSRP priority is decreased by 10. The number of distinct words in a sentence. Ping from one VRF to the other VRF. Lets check if all interfaces are up: This is what we are looking for. This also prevents other problems, such as routing black holes, from occurring. What happens if the serial 0 interface of R1 goes down? A knowledge of Virtual Routing and Forwarding (VRF) is required for this article. Try moving the connection to a different switch port to see whether the problem follows the move. New here? *Mar 1 01:54:39.699: %LINEPROTO-5-UPDOWN: Line protocol on Interface Tunnel0, changed state to up. Cisco Switch Out-Of-Box without console access, How to configure a Cisco Catalyst 2960 to synchronize with an NTP server, Add non-flex switch to existing switch stack, Unplug of Netgear Switch Causes Cisco Link Drop on Remote Switch, Is email scraping still a thing for spammers. %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to down %LINK-3-UPDOWN: Interface FastEthernet0/1, changed state to down. According to point 3 as I understand Does Cast a Spell make you a spellcaster? Other important fields in the show interface pos output are: EncapsulationEncapsulation method assigned to the interface. The data can consist of any binary value. The documentation set for this product strives to use bias-free language. @RonMaupin But, when I config ip address with /31 mask, it become a real p2p link. Use debug serial interface to confirm this. Provide frame delineation, which defines for a receiver exactly where a packet and frame begins and ends. Cisco Gigabit Ethernet Transceiver Modules Compatibility Matrix. Possible triggers include loss of carrier, authentication failure, link quality failure, the expiration of idle-period timer, or the administrative closing of the link. The value in this field identifies the datagram encapsulated in the Information field of the packet. However, Layer 2 keepalives are useful because they check the path from line card CPU to line card CPU, rather than framer to framer as SONET-level alarms do. The documentation set for this product strives to use bias-free language. Keepalives are disabled automatically on most POS router hardware. Thus, packet over SONET is more accurately PPP over SONET or HDLC over SONET. New here? Debugging during these periods decreases the likelihood that increased debug command processing overhead affects system use. What can I do? The interfaces that Im working with are both showing up/up. Avoid configuring APS on a POS interface with PPP encapsulation. Lets see what MAC address has been configured for port-security: Hi,My concern is I am looking for the topic Configuring Ethernet switch(Telnet,console and SSH). On the switch, issue the sh vlan , sh port mod/port (L2 port), sh trunk mod/port (if the L2 port is a trunk), and sh spantree
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