You must save this setting in the startup configuration. In previous versions of nxos when when nexus switch would come online after a power outage lets say the secondary in the vpc and the primary never comes back up. After you create a vpc domain, the cisco nxos software. In nexus 7000 what is use of vpc auto recovery feature. This is used when both vpc peers are rebooted, so that the secondary does not wait forever for the primary to come up before assuming it. How to boot into recovery mode nexus 7 rob schmuecker. Catalyst vss technology cisco forum faq dslreports, isp. Page 6 creating a vpc peer link checking the configuration compatibility enabling vpc autorecovery configuring the restore time delay excluding vlan interfaces from shutting down a vpc peer link. The only thing dualhoming a fex will gain is the ability to make a device with a single nic survive the failure of a single parent nexus. In this scenario, vpc will not come up even for the nexus 7000 which is already up. The default time delay is 360 seconds 6 min to wait for the primary to come back online. At work were using it extensively on a few pairs of nexus 7000s. Cisco strongly recommends that you enable this feature to help. Lacp configuration and multichassis etherchannel on nexus.
The first step in configuring vpc is to create a domain with an id number must match on both switches and assign a nonpreemptive role priority to each switch where lowest number highest priority. Troubleshooting cisco nexus switches and nxos book, 2018. Two nexus 7000 switches in vpc with autorecovery configured. In a previous post i briefly described the benefits of virtual portchannel vpc and discussed design options for the. This update to the course will include coverage of new features introduced in cisco nxos 6. This scenario might occur when the f1 module needs to be upgraded for scalability or other reasons. The document defines the steps needed to migrate a virtual portchannel vpc peer link from the nexus 7000 f1 module to the m1 module.
Vpc belongs to multichassis etherchannel mcec family of. Configure autorecovery autorecovery reloaddelay time. If there is a data center outage or power outage, both vpc peers consisting of nexus 7000 switches are down. The third switch can be a cisco nexus 2000 series fabric extender or a switch, server, or any other networking device. The activeactive design allows us to connect serversstoragedevices to a single fex, and utilize the fexs portchannels to each parent switch to provide redundancy. A vpc deployment with a single cisco nexus 7000 series m2xp12 module or m108xp12 module, where the l3 core uplinks and vpc peerlink interfaces are localized on the same module, is vulnerable to access layer isolation if the 10gbps module fails on the primary vpc vpc member ports are defined on both 1gbps line cards and on 10gbps line. If configuring peerswitch vpc vlans priority on both switch must be the same. Configuring cisco nexus 7000 series switches dcnx7k v3. Autorecovery will not trigger on secondary vpc peer conditions. Cisco nexus 7k design with activeactive fex egroup. Introduction vpc autorecovery feature in nexus 7000. In the previous articles we covered the main components, features and best practices implemented for the nxos vpc data center technology.
This course is designed for systems and field engineers who configure the cisco nexus 7000 switch. This is the third and final article from the cisco nexus virtual port channel vpc virtualization technology and indeni series. Since the other nexus 7000 is still down, vpc peerlink as well as vpc peerkeepalive link are also down. This course covers the key components and procedures you need to know to install, configure, manage, and troubleshoot the cisco nexus 7000 switch platform. I thought configuring auto recovery would bring the member ports up after 240sec delay but the ports never come up. All vpc configurations have to be removed from the portchannel on that nexus 7000 to cause the portchannel to work. Introduce nxos software architecture and logging capability. Cisco nexus 7000 series nxos interfaces configuration. Enabled timeout 240 seconds if this is not set as enabled trust me, set it as enabled. Cisco nxos software vpcs and cisco catalystvirtual switching systems vss are of similar technologies. Cisco nexus 5000 series vpc design and configuration. A vpc allows links that are physically connected to two different cisco nexus 5000 series switches to appear as a single port channel to a third switch. I have a nexus 7 2012, but i assume the recovery mode is the same for both. The vpc peers must run the same nxos version except during the nondisruptive upgrade, that is, inservice software upgrade issu.
Nexus 7000 series 190 pages switch cisco nexus 6000 series configuration manual. With reload restore the secondary nexus switch will assume the primary role for stp and lacp functions. They offer highdensity 10, 40, and 100 gigabit ethernet with application awareness and performance analytics. At this time being, vpc is implemented on cisco nexus 9000, 7000, 5000 and 3000 series platforms with or without cisco nexus 2000 series fabric extenders. In a data center outage or power outage, both vpc peers comprising of nexus 7000 switches are down.
A vpc peer may wait a long time for its peer after a dual reboot. This is the second part in a two part post on etherchannel on the nexus 7000. We have to remove all vpc configurations from the portchannel on that nexus 7000 to get the portchannel working. Cisco nexus 3548 configuration manual pdf download. When building data center networks using cisco nexus switches you can choose to attach the nexus 2000 fabric extender fex to a nexus 5000 or 7000 depending on your design requirements and budget. In this scenario, the vpc does not come on even for the nexus 7000 which is already on. This course covers the key components and procedures you need to know to configure, manage, and troubleshoot the cisco nexus 7000 series switch. There were two main reasons for this vpc enhancement. Configuring cisco nexus 7000 switches techsherpas 365. In this explanation it says one of the reasons for autorecovery is.
Why do we need vpc autorecovery there were two main reasons for this vpc enhancement. It is not possible to configure vpc on a pair of switches consisting of a nexus 7000 series and a nexus 5000 series switch. Then i updated nxos on one nexus switch and when the switch came back up, it took down both nexus 2ks at the same time to upgrade the software on it. This logical link can be used to forward traffic by using a. View and download cisco nexus 7000 series configuration manual online. Michel sent me a detailed email describing both his enthusiasm with vpc and the headaches consistency checker is causing him. Overview the configuring cisco nexus 7000 switches dcnx7k v3.
A power outage shuts off both nexus 7000 vpc peers simultaneously and only one switch is able to come on. Nexus vpc seems like a perfect solution for real multichassis etherchannel. The assumption is that vpc autorecovery is configured and saved to the startup configuration on both switches s1 and s2. Cisco catalyst 6500 vss and cisco nexus 7000 vpc interoperability and best practices white paper vss vpc interoperability sample configuration following is an illustration. I have this scenario and trying to configure vpc for cisco asa 5585 activestandby nexus vpc config. Ciscos virtual port channel vpc technology is developed for cisco nxos software for cisco nexus switches like nexus 7000, nexus 5000 with or without fabric extender nexus 2000, etc. Cisco content hub cisco nexus 7000 series switches.
Cisco vpc best practices and failure scenarios knowledge. Since the other nexus 7000 is still off, the vpc peerlink and the vpc peerkeepalive link are also off. Here is a diagram depicting the layout that we are using. The configuring cisco nexus 7000 switches dcnx7k v3. What ive found on my tablet that to get from step 4 to step 5, i need to press the power button then press and release the volume up button and finally release the power button. In the first part i covered how to configure vpc on the nexus 7000, here i will cover what it takes to get a remote switch to uplink to the nexus 7000 core switches using vpcmultichassis etherchannel. Occasionally, only one of the peers can be restored. As soon as this above event happened, another event happened which causes primary nexus goes down. Nexus 7000 vpc autorecovery feature configuration example.
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