You need to verify the physical connectivity and unshut the port: switch1# config t switch1 (config)# int mgmt 0 switch1 (config-if)# no shut I put an IP address and subnet mask on the mgmt0 port and connected a copper cable to it and on the other end its connected to a switchport on another switch in the management vlan. I have been using the Nexus platform for a year now. confirm The interface config is bare bones at this point: interface fex100/1/1 switchport access vlan xx spanning-tree port type edge no shut I have tried to plug other devices into the port and no link lights will come up. mgmt0 -- down 172.16.118.62 -- 1500 If the status shows that it is down, it means there is no physical connection to mgmt0 or that the interface is in admin shutdown. This makes devices reachable from LXC and VIRL hosts but not on flat network; 3. Right click on the NX-OS device thats currently showing up as "Unreachable" and console into it. There are a few other fexs connected as well. vPC Keep-alive parameters IP address of MLAG-VIP must be in same subnet as the MGMT ports MGMT0 must be used for MLAG. In Exadata X7 configuration the Cisco switch should be monitored using Infiniband monitoring as the Management port (which is a secondary network) is not connected. switch# show cdp global Global CDP information: CDP enabled globally Refresh time is 60 seconds Hold time is 180 seconds CDPv2 advertisements is enabled DeviceID TLV in System-Name (Default) Format switch# show cdp interface To display the Cisco Discovery Protocol (CDP) parameters for an interface, use the show cdp interface command. 03-22-2013 05:26 AM Mgmt 0 Interface Down - HA not ready Setting up a new set of 6248 FIs running 2.1 (a) - HA never becomes ready - After some investigation within NXOS mgmt 0 reports as down "link not connected", even though I am connected on that interface to both FIs and the cluster IP - I have changed cabled and switch etc. According to Cisco documentation, config-sync traffic is carried over mgmt0 interface (see balow). MGMT0 enables you to manage the devices by the IPv4 or IPv6 address on the MGMT0 interface; the mgmt0 interface is a 10/100/1000 Ethernet interface. The IPL IP address must not overlap with any other address on the switch. The switch CPU types must match (x86 or PPC). The actual link down reason. 'show interface mgmt0' on the N5K does show that the interface is in 'down' state. After the Engineer pointed out the issue, shutting down the ports connected to the 3750 instantly resolved the connectivity issues - looks like I need to revisit my spanning-tree and port-channel . Configure Spanning-tree. Eth1/9 1 eth access down Link not connected 10G(D) . The interface is down (and the MAC still remained even when Admin Down). If you attempt to configure switch-profile peer with any non-mgmt0 IP, the switch will show 'Peer not Reachable', even though the IP is pingable . Switch# show interface mgmt 0 mgmt0 is up Hardware is GigabitEthernet Address is 001d.a20f.a998 Internet address is 10.32.167.226/24 - IPv4 address of management interface MTU 1500 bytes, BW 100 Mbps full Duplex 14702321 packets input, 1271551817 bytes 28651 multicast frames, 0 compressed 0 input errors, 0 frame 0 overrun, 0 fifo Enable LACP feature. N5K-2(config)# sho int mgmt0 mgmt0 is down (Link not connected) Hardware: GigabitEthernet, address: 0005.9b7a.8800 (bia 0005.9b7a.8800) There it is, but why is it being learned? Who initiated the link flap. A virtual PortChannel (vPC) allows links that are physically connected to two different Cisco Nexus devices to appear as a single Port Channel to a third device. disconnect all cables - there should be no green light on either end switch or router. When implementing Virtual port-channel (vPC), a best practice is to use the MGMT0 interface for the VPC keepalive link. Configure VLANs. To confirm that the Management Port is not connected, the following command can be run: my01sw-ip> show interface mgmt0. Ethernet1/1 is down (Link not connected) Dedicated Interface Belongs to Po101 Hardware: 1000/10000 Ethernet, address: 002a.6a10.7388 (bia 002a.6a10.7388) MTU 1500 bytes, BW 10000000 Kbit, DLY 10 usec reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA Port mode is fex-fabric auto-duplex, 10 Gb/s, media type is 10G Beacon is . The keep-alive link (s) can be connected via links (at least 1Gbps) on a dedicated VRF, via mgmt0, or via an L3 routed network - in order of preference. In case a switch is not available to connect management ports, back to back connection is acceptable. - once topology is started up, mgmt0 interface links (and therefore protocols) are down on all devices (NX-OS devices: N7K, N9K), it takes corresponding interface shut / no shut to bring it to up/up state. Here is a little one regarding showing interfaces. 1 cisco_disco18 3 yr. ago Nexus 's and ASA all participate in EIGRP and form neighborships successfully. Verifying the ErrDisable State Using the CLI E ports carry frames between switches for configuration and fabric management. Next thing - there should be no green light if the link is down - I would check this cable does not go to some active equipment/patch panel etc. The remote end still shows link UP. A Port Is in the ErrDisabled State The ErrDisabled state indicates that the switch detected a problem with the port and disabled the port. This is the config of that port: Symptom: When we issue 'shutdown' to 'interface mgmt 0' on the N5K, the link never goes down. nx-osv mgmt0 link not connected nx-osv-2 (config-if)# do show int mgmt 0 mgmt0 is down (Link not connected) admin state is up It looks fine in uwm Ports of network flat Delete selected Name Status Fixed IP Address Options </guest/endpoint>-<nxos_test-olzJK3>-<nx-osv-1>-<flat> ACTIVE 172.16.15.101 Take a Nexus 7K for example: two supervisors, two mgmt0, one is active. Nexus "ah-ha" moment part 1. -Sent on interface : mgmt0 -Receive status : Success -Last receive at : 2014.08.21 10:52:29 925 ms -Received on interface : mgmt0 -Last update from peer : (0) seconds, (485) msec. You can use the management Ethernet interface to connect the device to a network for remote management using a Telnet client, the Simple Network Management Protocol (SNMP), or other management agents. multiple relationships in forensic psychology; mama gen protogen mgmt0 is down (Link not connected) admin state is up, I found this early on to be painful thinking "Where are my FEX's". This state could be caused by a flapping port which could indicate a problem with the media. The Nexus switches provide Layer 2 features without the Essentials licenses. LAB-MEL-SVRSW-P1-2# sh ip int br IP . The topology for this lab is detailed here (open in another tab for reference): I'll be following these steps to configure vPC : 1. 1. Sep 26. If you cannot use mgmt0 for vPC keepalive, you probably cannot use it for config-sync neither. I'm assuming you have already read the configuration guides and have a general understanding of vPC . I always find I get "ah-ha" moments due to the fact most of the time I am hiding in IOS. 9k: interface mgmt0 vrf member management ip address 10.111.1.2/24 N5K-2(config)# sho int mgmt0 mgmt0 is down (Link not connected) Hardware: GigabitEthernet, address: 0005.9b7a.8800 (bia 0005.9b7a.8800) . The management port (mgmt0) is autosensing and operates in full-duplex mode at a speed of 10/100/1000 Mb/s. 2. The third device can be a Cisco Nexus 2000 Series Fabric Extender or a switch, server, or any other networking device. The fex is set up properly and is communicating to the Nexus 5548 without issue. A vPC can provide Layer 2 multipathing, which allows you to . The DOM Information show me receive and transmit pegel and if I do a shut command on that interface the other side goes down. After opening a TAC case and collecting debugs over and over again, . nymn 7tv. walmart receipt template pdf. This port may be connected to another E port to create an Inter-Switch Link (ISL) between two switches. Telnet: Provides an unsecure management connection to the NX-OS device. The remote end still shows link UP. 'show interface mgmt0' on the N5K does show that the interface is in 'down' state. ASA has an L3 /30 link to each 9k. On my Cisco Catalyst 3850 there is a SFP Module which is connected to another device, the port on the Other device (vendor equipment) come up but my interface is still down. When you use mgmt0 in a dual-supervisor environment, only one of them is active at a time. Those include:static routes, switch virtual interfaces (SVIs), Hot Standby Router Protocol (HSRP), and Routing Information Protocol (RIP) by . They serve as a conduit between switches for frames destined to remote N ports and NL ports. No need for cross-connect cable. Once you're in just change the port speed on the mgmt0 to 100Mb instead of the default 1000Mb, give it a few seconds and you should get a message in VM Maestro Console window that it went from Unreachable to reachable. E ports support class 2, class 3, and class F service.
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