vPC role also defines a set of actions to be taken by vPC primary and vPC secondary in response to vPC peer-link down situation. Dec 6, 2023 · For vPC, the loopback interface has two IP addresses: the primary IP address and the secondary IP address. How to swap the Aug 29, 2017 · You can also reload the “secondary, operational primary” vPC peer one additional time to get the devices into the original roles. Jul 9, 2019 · 解決済み: vPC roleが以下のようになった場合に、vPC roleのステータスを正常化させる復旧方法は時間差での再起動だけでしょうか？ 他に方法があればご教示おねがいします。 ```vPC role : primary, operational secondary``` ```vPC role : secondary, operational primary``` Dec 6, 2023 · For vPC, the loopback interface has two IP addresses: the primary IP address and the secondary IP address. 5. vPC domain id : 1 Peer status : peer adjacency formed ok vPC keep-alive status : peer is alive Configuration consistency status: success vPC role : primary, operational secondary Mar 14, 2016 · You can use the vPC hitless feature and restore the device roles. Feb 8, 2024 · SW1# show vpc role vPC Role status ----- vPC role : primary, operational secondary Dual Active Detection Status : 0 vPC system-mac : 00:23:04:ee:be:01 vPC system-priority : 32667 vPC local system-mac : 50:01:00:00:1b:08 vPC local role-priority : 32667 vPC local config role-priority : 32667 vPC peer system-mac : 50:02:00:00:1b:08 vPC peer role-priority : 32667 vPC peer config role-priority Apr 5, 2022 · (*) - local vPC is down, forwarding via vPC peer-link. In this instance you are correct that a new root bridge has appeared and STP needs to run throughout the topology - with attendant interruption of service. If this happens, the vPC primary switch will remain as the primary and the vPC secondary switch will become operational primary causing severe network instability and outage: vPC Dual-Active or Split Brain Failure Scenario. After the Dual-active recovery, if one side is operational primary and the other side operational secondary, then you can use the vpc role preempt command to restore the device roles to be primary and secondary Feb 23, 2024 · secondary_switch(config)# vpc domain 100 secondary_switch(config-vpc-domain)# auto-recovery secondary_switch(config-vpc-domain)# end secondary_switch# show running-config vpc !Command: show running-config vpc !Running configuration last done at: Wed May 16 06:34:10 2018 !Time: Wed May 16 06:34:14 2018 version 7. After the Dual-active recovery, if one side is operational primary and the other side operational secondary, then you can use the vpc role preempt command to restore the device roles to be primary and secondary Mar 11, 2015 · Hello All - It is a conceptual question for which i need your help to understand the significance of the Primary & Secondary Role defined in Nexus VPC. Then, after three consecutive keepalive timeouts, the vPC secondary switch changes its role to primary and brings up the vPC member ports. Nexus vPC Configuration & Troubleshooting Guide Jun 5, 2017 · switch (config)# show vpc role vPC Role status-----vPC role : secondary, operational primary Dual Active Detection Status : 0 vPC system-mac : 00:23:04:ee:be:64 vPC system-priority : 32667 vPC local system-mac : 00:22:55:79:de:41 vPC local role-priority : 32667 関連コマンド Show vpc出现以下情况： N9K-1：primary，operational secondary； N9K-2：secondary，operational primary。 这个是不允许的，需要将peer switch的主备和operational的主备保持一致。 这种情况2种办法可以解决： 第一种、在2台peer switch的任何一台上执行 vpc role preempt 均可； Aug 14, 2023 · vPC role defines which of the two vPC peer devices processes Bridge Protocol Data Units (BPDUs) and responds to Address Resolution Protocol (ARP) requests. 0(3)IHD8(1) Bios:version 01. 100. When the failed switch recover, it will be the operational secondary switch (because vPC role is non-preemptive), and will start forwarding traffic. The switch holding the Secondary or Operational Secondary vPC role has all of its interfaces in a Designated Forwarding state except for the vPC Peer-Link, which is in a Root Forwarding state. The Operational Primary and Operational Secondary role is driven by the real time behavior of peer-device. When the two vPC systems are joined to form a vPC domain, the priority decides which device is the vPC primary and which is the vPC secondary. After the Dual-active recovery, if one side is operational primary and the other side operational secondary, then you can use the vpc role preempt command to restore the device roles to be primary and secondary Oct 12, 2020 · はじめに この記事では、 Cisco Nexus シリーズの vPC で提供されるコマンドの1つである「 vpc role preempt 」について解説します。 こちらの機能は vPC ヒットレス ロールの変更機能とも呼ばれ、トラフィックに影響を与えることなく、vPC の role を切り替えることが出来ます。 本稿は vPC を構成する vPC operational Role: we have concept of operational role: Operational primary and operation secondary. Feb 20, 2023 · Step-1: Enable vPC and LACP features: Step-2: Configure vPC domain: Step-3: Peer KeepAlive Configuration Both … Continue reading. Mar 19, 2018 · 这是由于在vPC里面，有一个参数叫Sticky Master，当一台Secondary成为operational primary的时候，会将自身的Sticky Master设置为True。 N7K-1由于一直是Primary，Sticky Master一直是FALSE，N7K-2由于role由Secondary切换为Secondary, operational primary,Sticky Master被置成了TRUE。 Cisco's recommendation is to match the vPC (operational) primary role with the root of STP & HSRP active. You can see here that this switch is the secondary. The secondary IP address on loopback is necessary because the interface NVE uses it for the VTEP IP address. vPC Role Priority is not preemptive, for example- if one Switch role is Primary and the other switch is in Secondary, suddenly Primary switch goes down automatically vPC secondary role will switchover as Feb 20, 2023 · Step-1: Enable vPC and LACP features: Step-2: Configure vPC domain: Step-3: Peer KeepAlive Configuration Both … Continue reading. Learn Duty. . Jul 19, 2024 · If I reload the switch acting as the vpc primary then the ping traffic continues and the switch acting as the vpc secondary becomes the operational primary. 11 feature Mar 14, 2016 · You can use the vPC hitless feature and restore the device roles. vPC domain id : 14 Peer status : peer adjacency formed ok vPC keep-alive status : peer is alive Configuration consistency status : success Per-vlan consistency status : success Type-2 consistency status : success vPC role : secondary, operational primary Mar 14, 2016 · You can use the vPC hitless feature and restore the device roles. After the Dual-active recovery, if one side is operational primary and the other side operational secondary, then you can use the vpc role preempt command to restore the device roles to be primary and secondary Aug 29, 2017 · You can also reload the “secondary, operational primary” vPC peer one additional time to get the devices into the original roles. Question No2 :What problems will occur while ""primary -operational secondary, Secondary-operational primary situation. May 31, 2016 · DC-N9K# show vpc . That would mean that this switch's vPC ports and SVIs are up and running. ”Yoda (paraphrased) Like Yoda says, there has always been a primary and secondary in a vPC relationship. Instead of an entire reload, you can reconfigure the role priorities and then flap the vPC peer link. Dec 12, 2022 · The switch holding the Primary or Operational Primary vPC role has all of its interfaces in a Designated Forwarding state. Sep 25, 2017 · sw-a# sh vpc role. When the vPC domain is configured and is made operational, vPC role is always equal to operational role. 3 days ago · Under this condition both switches undertake the vPC primary roles. Jan 29, 2023 · In case of the failure of the Primary switch, the secondary switch will detect that the Peer-link is down, then, check that no keep Alive hearbeats, and will assume the role of vPC operational Primary. We would like to show you a description here but the site won’t allow us. What are all the problem will occurs due to " VPC SPLIT BRAIN" scenario. By using vPC, users get the immediate operational and architectural advantages: Simplifies network design Build highly resilient and robust Layer 2 network Nov 25, 2020 · vPC keep-alive status : peer is alive Configuration consistency status : success Per-vlan consistency status : success Type-2 consistency status : success vPC role : primary, operational secondary Number of vPCs configured : 5 Dec 6, 2023 · For vPC, the loopback interface has two IP addresses: the primary IP address and the secondary IP address. The recommended practice for configuring role priorities is to ensure that the primary vPC peer is the same device used as the Spanning Tree root bridge and HSRP active peer. vPC domain id : 100 Peer status : peer adjacency formed ok vPC keep-alive status : peer is alive Configuration consistency status : success Per-vlan consistency status : success Type-2 consistency status : success vPC role : primary, operational secondary Aug 14, 2023 · vPC role defines which of the two vPC peer devices processes Bridge Protocol Data Units (BPDUs) and responds to Address Resolution Protocol (ARP) requests. 1 vrf KeepAlive delay restor Aug 29, 2017 · You can also reload the “secondary, operational primary” vPC peer one additional time to get the devices into the original roles. If the VPC primary fails (loss of peer link + peer keepalive) then the VPC operational role shifts as the VPC secondary assumes the role of primary. So, secondary node will become operational primary. Why is this so? vPC doesn't have any pre-emption mechanism. Earlier "Nexus-9k-2" was secondary and "Nexus-9k-1" was primary, But now operational primary and operational secondary respectively after a network up-gradation window. After the Dual-active recovery, if one side is operational primary and the other side operational secondary, then you can use the vpc role preempt command to restore the device roles to be primary and secondary Feb 20, 2023 · Step-1: Enable vPC and LACP features: Step-2: Configure vPC domain: Step-3: Peer KeepAlive Configuration Both … Continue reading. Having same role priority what can affect vpc role to be primary or secondary ? vpc domain 10 role priority 100 peer-keepalive destination 10. After the Dual-active recovery, if one side is operational primary and the other side operational secondary, then you can use the vpc role preempt command to restore the device roles to be primary and secondary Aug 14, 2023 · vPC role defines which of the two vPC peer devices processes Bridge Protocol Data Units (BPDUs) and responds to Address Resolution Protocol (ARP) requests. Jul 29, 2016 · vPCロールが 'secondary, operational primary' のスイッチをリロードした際、50秒位の通信断が発生する場合がある: 原因: auto recovery が有効になっている環境下で発生し得る想定動作となります。ただし、非常にレアなケースとなります。 Oct 27, 2021 · vPC Role Priority or Role selection depends on the configured Role priority or if Role priority is the default it uses some other criteria. The documentation set for this product strives to use bias-free language. vPC keepalive-link failure followed by a peer-link failure: If the vPC keepalive link fails first and then a peer-link fails, the vPC primary switch continues to be primary but the vPC secondary switch becomes the operational primary switch and keeps its Dec 16, 2021 · vPC role : primary, operational secondary Number of vPCs configured : 3 Peer Gateway : Enabled Peer gateway excluded VLANs : - Dual-active excluded VLANs : - Graceful Consistency Check : Enabled Auto-recovery status : Disabled Nexus2 vPC domain id : 2 Peer status : peer adjacency formed ok vPC keep-alive status : peer is alive Cisco's recommendation is to match the vPC (operational) primary role with the root of STP & HSRP active. After the Dual-active recovery, if one side is operational primary and the other side operational secondary, then you can use the vpc role preempt command to restore the device roles to be primary and secondary 2. The primary IP address is unique and is used by Layer 3 protocols. Nov 3, 2016 · In Cisco NX-OS Release 5. If the primary switch comes back again, it will take the role of vPC operational secondary. Apr 24, 2013 · (*) - local vPC is down, forwarding via vPC peer-link. If the primary vPC peer device fails, the secondary vPC peer device takes over to become operationally the vPC primary device. I- What is vPC (Virtual Port Channel) A virtual port channel (vPC) allows links that are physically connected to two different Cisco Nexus switches to appear as a single port channel to a third device. (*) - local vPC is down, forwarding via vPC peer-link vPC domain id : 1 Peer status : peer adjacency formed ok vPC keep-alive status : peer is alive Configuration consistency status : success Per-vlan consistency status : success Type-2 consistency status : success vPC role : secondary Number of vPCs configured : 18 Peer Gateway : Enabled Oct 19, 2017 · Hitless vPC Role Change Thursday October 19, 2017 “Always two there are; no more, no less. " Sep 20, 2016 · To understand the operational role of a vPC member, you need to consider the status of the peer-keepalive link and the peer link. Is it mandatory or Recommended to manually give back the role to primary ? Nagarjun V vPCプライマリスティッキービットの切り替え： 1. Role elections only happens when the peer-keepalive is vPC also leverages native split horizon/loop management provided by port-channeling technology: a packet entering a port-channel cannot immediately exit that same port-channel. Legend: (*) – local vPC is down, forwarding via vPC peer-link. In the log on the acting primary I see the following:- Dec 6, 2023 · For vPC, the loopback interface has two IP addresses: the primary IP address and the secondary IP address. The next most important thing is to be able to determine what role the local switch is playing. This type of scenario called split brain scenario in vPC. But, they’ve always been non-preemptive. 11 Dec 6, 2023 · For vPC, the loopback interface has two IP addresses: the primary IP address and the secondary IP address. vPCにはOperational roleが存在することを上記に説明させて頂きました。このOperational roleがなんらかの障害で切り替わってしまったときのroleの変更方法を記載します。 show vpc role vPC Role status ----- vPC role: secondary, operational primary Dual Active Detection Status: 0 vPC system-mac: 00:23:04:ee:be:64 vPC system-priority: 32667 vPC local system-mac: 00:22:55:79:de:41 vPC local role-priority: 32667 Related Commands Command Description show vpc brief Displays information about vPCs. This is not preemptive. vPC対応スイッチは、リロードリストアタイマー（デフォルトでは240秒）の期限が切れる と、ロールをNone establishからvPC Primaryに変更します。 • 2. Nexus-9k-2# sh vpc role vPC Role status-----vPC role : secondary, operational primary Aug 29, 2017 · You can also reload the “secondary, operational primary” vPC peer one additional time to get the devices into the original roles. Aug 14, 2023 · vPC role defines which of the two vPC peer devices processes Bridge Protocol Data Units (BPDUs) and responds to Address Resolution Protocol (ARP) requests. 7/32 secondary. Jun 28, 2011 · switch1# show vpc brief Legend: (*) - local vPC is down, forwarding via vPC peer-link vPC domain id : 500 Peer status : peer link is down vPC keep-alive status : Suspended (Destination IP not reachable) Configuration consistency status: success vPC role : secondary, operational primary Number of vPCs configured : 4 Peer Gateway : Disabled Dual Sep 20, 2016 · To understand the operational role of a vPC member, you need to consider the status of the peer-keepalive link and the peer link. There is also concepts of operational role: Operational Primary and Operational Secondary. vPC Operational roleの変更方法. vPC Roles, vPC System mac and LAG ID: show vpc role FAB3-L1# show vpc role vPC Role status ----- vPC role : primary, operational secondary Dual Active Detection Status : 0 vPC system-mac : 00:23:04:ee:be:65 vPC system-priority : 32667 vPC local system-mac : 00:81:c4:b1:25:4f vPC local role-priority : 101 FAB3-L2# show vpc role vPC Role Oct 5, 2023 · Bias-Free Language. Mar 13, 2016 · How to change the vPC role on Nexus 93128. vPCプライマリスティッキービットの値が、次のシナリオでFALSEに設定されている。 Feb 20, 2023 · Step-1: Enable vPC and LACP features: Step-2: Configure vPC domain: Step-3: Peer KeepAlive Configuration Both … Continue reading. If you want to change the operational role from one box to the other change the vpc domain role priority (lower wins the election). vPC role is non-preemptive to prevent control plane disruptions caused by unnecessary role changes. After the Dual-active recovery, if one side is operational primary and the other side operational secondary, then you can use the vpc role preempt command to restore the device roles to be primary and secondary Cisco's recommendation is to match the vPC (operational) primary role with the root of STP & HSRP active. 2 in my example is primary. Feb 20, 2023 · ip address 10. 7K2 receive no more any messages on vPC peer-keepalive link. In this case, both vPC nodes will forward the traffic. Jul 3, 2014 · VPC Role VPC peer角色有2种：primary和secondary； Primary用于处理发送BPDU和响应ARP； VPC根据优先级选举primary交换机，优先级越小越优； 如果优先级一样，低的system mac优先； Role的角色是不能抢占的，因此应该关注operational role；优先级低的不一定是primary(比如发生故障后，secondary变成了operational primary，即 Feb 20, 2023 · Step-1: Enable vPC and LACP features: Step-2: Configure vPC domain: Step-3: Peer KeepAlive Configuration Both … Continue reading. When a vPC peer is saying it is the secondary, operational primary I take that to mean that the local switch has assumed the primary role for whatever reason. Even if the configured primary switch came back on-line, the primary switch doesn't pre-empt the secondary. vPCプライマリスティッキービットの値は、次のシナリオではTRUEに設定されます。 現在のvPCプライマリがリブートし、vPC対応スイッチのロールがvPCセカンダリからvPC Operational Primaryに変更されます。 Dec 6, 2023 · vPC role : secondary, operational primary Number of vPCs configured : 2 Peer Gateway : Enabled Peer gateway excluded VLANs : - Peer gateway excluded bridge-domains : - Dual-active excluded VLANs and BDs : - Graceful Consistency Check : Enabled Auto-recovery status : Enabled (timeout = 240 seconds) Operational Layer3 Peer-router : Enabled Sep 20, 2016 · To understand the operational role of a vPC member, you need to consider the status of the peer-keepalive link and the peer link. " This means that there has been a failover event and the switch is now behaving as whatever operational role is indicated. If the primary device were to reload, when the system comes back online and connectivity to the vPC secondary device (now the operational primary) is restored, the operational role of the secondary device (operational primary) will not change, to avoid unnecessary disruptions. Sep 20, 2016 · To understand the operational role of a vPC member, you need to consider the status of the peer-keepalive link and the peer link. However when the switch that was acting as vpc primary starts forming the adjacency again then I see pings being dropped for 8-10 seconds. May 9, 2022 · vPC Role status-----vPC role : primary, operational secondary Dual Active Detection Status : 0 vPC system-mac : 00:23:04:ee:be:64 vPC system-priority : 100 vPC local system-mac : d0:e0:42:64:e2:d7 vPC local role-priority : 10 vPC local config role-priority : 10 vPC peer system-mac : d0:e0:42:64:e3:1f vPC peer role-priority : 20 vPC peer config Aug 29, 2017 · You can also reload the “secondary, operational primary” vPC peer one additional time to get the devices into the original roles. Apr 16, 2018 · Hello, I have a vpc peer-keepalive with same priority but actually 10. Jul 16, 2024 · Switch2# show vpc brief Legend: (*) - local vPC is down, forwarding via vPC peer-link. Feb 19, 2015 · 2-2. I learned VPC makes both the switches active (Dataplane) by LACP Etherchannel formed between the connecting device (Fex or Server). Sometimes you will see the role as "primary, operational secondary" or "secondary, operational primary. 111. vPC keepalive link failure followed by a peer link failure: A dual active scenario occours; vPC primary switch continues to be primary but the vPC secondary switch becomes the operational primary switch and keeps its vPC member ports up. (*) - local vPC is down, forwarding via vPC peer-link vPC domain id : 500 Peer status : peer adjacency formed ok vPC keep-alive status : peer is alive Configuration consistency status: success vPC role : primary, operational secondary Feb 20, 2023 · Step-1: Enable vPC and LACP features: Step-2: Configure vPC domain: Step-3: Peer KeepAlive Configuration Both … Continue reading. There is no loss of traffic for existing flows but new flows can be effected as the peer link is not Dec 6, 2023 · For vPC, the loopback interface has two IP addresses: the primary IP address and the secondary IP address. Mar 14, 2016 · You can use the vPC hitless feature and restore the device roles. 2(1) Bios:version 01. After the Dual-active recovery, if one side is operational primary and the other side operational secondary, then you can use the vpc role preempt command to restore the device roles to be primary and secondary Aug 28, 2015 · vPC keep-alive status : peer is alive Configuration consistency status : success Per-vlan consistency status : success Type-2 consistency status : success vPC role : secondary, operational primary Number of vPCs configured : 4 Aug 14, 2023 · vPC role defines which of the two vPC peer devices processes Bridge Protocol Data Units (BPDUs) and responds to Address Resolution Protocol (ARP) requests. Cisco's recommendation is to match the vPC (operational) primary role with the root of STP & HSRP active. Now VPC works fine vPC domain id : 10 Peer status : peer adjacency formed ok vPC keep-alive status : peer is alive Configuration consistency status : success Per-vlan consistency status : success Type-2 consistency status : success vPC role : primary, operational secondary Number of vPCs configured : 16 Feb 20, 2023 · Step-1: Enable vPC and LACP features: Step-2: Configure vPC domain: Step-3: Peer KeepAlive Configuration Both … Continue reading. After the Dual-active recovery, if one side is operational primary and the other side operational secondary, then you can use the vpc role preempt command to restore the device roles to be primary and secondary Dec 6, 2023 · For vPC, the loopback interface has two IP addresses: the primary IP address and the secondary IP address. Sep 27, 2015 · Question No1. As of now showing like below. That means that a secondary will not automatically become primary unless there’s a … Hitless vPC Role Change Read Sep 20, 2016 · To understand the operational role of a vPC member, you need to consider the status of the peer-keepalive link and the peer link. Apr 20, 2016 · 4. Primary vPC peer-device (7K1) then goes down. Mar 29, 2024 · secondary_switch(config)# vpc domain 100 secondary_switch(config-vpc-domain)# auto-recovery secondary_switch(config-vpc-domain)# end secondary_switch# show running-config vpc !Command: show running-config vpc !Running configuration last done at: Wed May 16 06:34:10 2018 !Time: Wed May 16 06:34:14 2018 version 9. vPC Role status vPC role : primary, operational secondary Dual Active Detection Status : 0 vPC system-mac : 00:23:04:ee:be:cd vPC system However, if peer-link dies after the keep-alive, secondary vPC node will start thinking that, the primary node are completely down because of no heartbeat from Primary node. Jun 24, 2014 · vPC keep-alive status : peer is alive Configuration consistency status: success Per-vlan consistency status : success Type-2 consistency status : failed Type-2 consistency reason : VTP type-2 configuration incompatible vPC role : primary, operational secondary Mar 14, 2016 · You can use the vPC hitless feature and restore the device roles. vPC domain id : 1 Peer status : peer link is down vPC keep-alive status : Suspended (Destination IP not reachable) Configuration consistency status : success Per-vlan consistency status : success Type-2 consistency status : success vPC role : secondary, operational Aug 14, 2023 · vPC role defines which of the two vPC peer devices processes Bridge Protocol Data Units (BPDUs) and responds to Address Resolution Protocol (ARP) requests. 0(2)N2(1), if you enable the auto-recovery feature and if the vPC primary switch goes down, the vPC secondary switch does not receive messages on the vPC peer keepalive link. Jan 19, 2024 · nk9-2# show vpc Legend: (*) - local vPC is down, forwarding via vPC peer-link. 0. However, the original operational roles are not restored if the formerly primary vPC comes up again. After 3 consecutive keepalive timeouts, vPC secondary peer device (7K2) changes role to operational primary peer device and then brings backs its vPC member ports to UP state. 2 source 10. After the Dual-active recovery, if one side is operational primary and the other side operational secondary, then you can use the vpc role preempt command to restore the device roles to be primary and secondary Sep 20, 2016 · To understand the operational role of a vPC member, you need to consider the status of the peer-keepalive link and the peer link. you need to put the VTP Operating Mode: Transparent ,VTP Domain Name: NNDC later if you want that the N5K-Primary work like a primary, you can configure the role on VPC domain but only the N5K-Primary, the command is vpc domain (Id), vpc role (number) if is less is better y default is 32667 Oct 31, 2022 · 2. vPC domain id : 10 Peer status : peer adjacency formed ok vPC keep-alive status : peer is alive Configuration consistency status : success Per-vlan consistency status : success Type-2 consistency status : success vPC role : primary, operational secondary Number of vPCs configured : 12 Dec 6, 2011 · By default, these roles are elected automatically by NX-OS, however it is beneficial to manually control which devices assume the primary and secondary roles. Aug 29, 2017 · You can also reload the “secondary, operational primary” vPC peer one additional time to get the devices into the original roles. This role is pretty important to understanding how a switch will behave in a failover scenario. Dec 8, 2015 · Hello Tobias, The priority decides which device is the vPC primary and which is the vPC secondary. For the purposes of this documentation set, bias-free is defined as language that does not imply discrimination based on age, disability, gender, racial identity, ethnic identity, sexual orientation, socioeconomic status, and intersectionality. Initially vPC role are equal to vPC operational role but can be changed during failure. A vPC primary and a vPC secondary. After 3 keepalive timeouts, S2 changes role and brings up its vPC vPC Primary vPC Secondary P S P Operational Primary Auto-recovery addresses two cases of single switch behavior • Peer-link fails and after a while primary switch (or keepalive link) fails • Both VPC peers are reloaded and only one comes back up S1 S2 S3 P S S1S2 S3 P S S2 S3 Feb 20, 2023 · Step-1: Enable vPC and LACP features: Step-2: Configure vPC domain: Step-3: Peer KeepAlive Configuration Both … Continue reading. 3. vPC role matters in Peer-link failure. And if in case of any event Secondary can 您还可以在 vPC 域模式命令中使用 role priority 来影响 vPC 选择过程。 数值范围从 1 到 65636，默认值为 32667。值越小意味着此交换机越有可能成为主 vPC。 更改 vPC 对等设备的优先级时，可能会导致网络中的接口启动和关闭。 Jun 24, 2014 · Hello, you need configure on nexus N5K-Primary the same parameter to vtp mode, but that vpc work fine,. znebtherq vgawt hmgvjt pdg cbctq opwek lycb pluspt hwvpfsz cokbk
