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I have Virtual Chassis with two members - master and backup. Symptoms The Virtual Chassis is formed using the uplink ports (VCEP). Under additional CLI commands in the Mist dashboard you should see the following command: 1set virtual-chassis member 0 mastership-priority 255 Configure or confirm the same primary-role priority value for the member inteded to be the Backup 1set virtual-chassis member 1 mastership-priority 255 NOTE: Learn how to become a member. EX4400 VC Ports Conversation | Fryguy's Blog Connect VC ports as specified in Edit Virtual Chassis window and wait for 3 to 5 minutes of time for virtual chassis to converge. This article provides information on troubleshooting the Virtual Chassis (VC) management Ethernet interface (VME). This means that the ports are currently working as network ports and need to be converted to vc-ports by running the following commands: >request virtual-chassis mode disable network-port. All 3 members are part of virtual chassis now. interface numbering changed throughout the entire steps. 4) After the removal of FPC 0 and FPC 2 , Only two members ( FPC 1 and FPC 3 will left in that virtual chassis). Copyright 2020 Elevate Community | Juniper Networks. SolarWinds solutions are rooted in our deep connection to our user base in the THWACK online community. "vcp-0.32768" = INTEGER: up(1), JUNIPER-VIRTUALCHASSIS-MIB::jnxVirtualChassisPortOperStatus.1. Additionally you need to have 50%+1 of the switches still in the VC in order for the VC to stay alive. I've been trying the same case but in non-provisioned mode , its a 3 member VC setup . When you have two unconfigured switches you can follow this documentation page: https://www.juniper.net/documentation/en_US/junos/topics/task/configuration/virtual-chassis-ex4300-configuring.html. I want to re arrange the switch member ID order as its physical order in the Rack. RE: Virtual Chassis member ID re number 0 Recommend Erdem Posted 05-31-2012 06:18 Reply Reply Privately If you renumber the switches, then yes, you will have to redo the configuration. A new switch can be added to an existing virtual chassis if new switch is of same version as virtual chassis. A kudo would be cool if you think I earned it. Thank you for your answers. All rights reserved. EX2300 Virtual Chassis - NotPrsnt | Switching Please note that most redudnancy schemes, such as VC, are not specifically design for double or triple fault scenerios. Thanks lot Ron. https://www.mist.com/documentation/step-by-step-process-for-vc-formation-with-mist/, Do Not Sell or Share My Personal Information, Onboard (claim / adopt) multiple EX / QFX switches into MIST (say Mist-ex2300-1, Mist-ex2300-2, Mist-ex2300-3 & Mist-ex2300-4). Click on Form Virtual Chassis and wait for 3-5 minutes till VC formation happens. [EX] Converting a Virtual Chassis Member Role from - Juniper Networks There are two methods to fix this scenario: Option 1 : Re-install the same Junos OS version that is running on the active VC members on the inactive members as well by executing request system software add package-name member , and then reboot the affected switches. Dont have a login? My use case is option with two switches, both same model - QFX5100-48S. i have tried disabling split , but no change. just verify this via 'show virtual-chassis status'. and our All rights reserved. virtual-chassis { preprovisioned; member 1 { role routing-engine; serial-number BBBBBBBB; } member 0 { role routing-engine; serial-number AAAAAAAAA ; } } To delete an existing member from VC, VCP link should be removed physically (this will move desired member to not-present state). .Kindly guide for these above mentioned tasks too. In Edit Virtual Chassis window, there is an option add switch where new member details can be specified. Once VC formation is successful, switch details page displays front panel with all members of VC. I would replace ge-0/ with xx-0/, then replace ge-3/ with ge-0/, then replace xx-0/ with ge-3/ (for example). when VC formation is in progress, switch status will be displayed as VC forming, After VC formation is successful, switch list page displays only one entry with primary switch name. Removing two members switches from (four members in a Virtual Chassis What you want to achieve is only possible in non-provisioned. http://www.oidview.com/mibs/2636/JUNIPER-MIB.html, Take a look at creating a UnDP formonitoring JUNIPER-MIB:jnxFruState, OID:1.3.6.1.4.1.2636.3.1.15.1.8Access:Read-OnlyType:Integer, The current state for this subject.Possible values:unknown(1)empty(2)present(3)ready(4)announceOnline(5)online(6)anounceOffline(7)offline(8)diagnostic(9)standby(10), This should be indexed in OID: 1.3.6.1.4.1.2636.3.1.15.1.1. The most common reason for the Inactive status is a Junos OS mismatch between the members of the stack. Very interesting PR. I saw posts and KB about the command " request virtual-chassis renumber", but it seems a lot of extra steps and I'm not sure about the impact. In this example, the Primary and Backup members have a status of Present; however, one of the members (FPC 1) reports the status as Inactive : The show version command displays the Junos OS version for all the members that are physically connected (including Present and Inactive members): There are two methods to fix this scenario: Option 1 : Re-install the same Junos OS version that is running on the active VC members on the inactive members as well by executing request system software add package-name member , and then reboot the affected switches. You can designate the member ID that is assigned to a specific switch by creating a permanent association between the switch's serial Virtual Chassis Renumbering/Swap Member : Juniper - Reddit Documentation Wired Switching Virtual Chassis What is a Virtual Chassis What is a Virtual Chassis and why is it needed Modified on May 16, 2023 Using Virtual Chassis With VC, you can combine multiple EX Series Switches, so they act as a single logical device with in the Juniper Mist cloud. Copyright 2020 Elevate Community | Juniper Networks. edit virtual-chassisno-split-detection, http://www.juniper.net/documentation/en_US/junos14.2/topics/concept/virtual-chassis-mx-series-split-detection.html. In NPM when you list resource on a Juniper switch you can see the Virtual Chassis Port (VCP), enable monitoring on these ports and create and up/down alert on the interface, If the switch is down or missing a cable you will be notified. as an aside jnxVirtualChassisMemberTable has some more interesting variables, e.g. contribute to our product development process. I am new to ORION. 3) Then I want to remove FPC 0 and FPC 2 from this virtual chassis. This method does not work for monitoring members within a VC that is not a routing engine, example your other IDF switches if you have more than 2. i.e member 0 and 1 are REs for the VC ,member 2 is not pre-defined as linecard. I wan to reorder the member ID from 1,0 to 0,1 . "vcp-0.32768" = INTEGER: up(1), JUNIPER-VIRTUALCHASSIS-MIB::jnxVirtualChassisPortOperStatus.2. For more information, review KB31540 - Installing software on a Mixed-Mode Virtual Chassis . 4) After the removal of FPC 0 and FPC 2 , Only two members ( FPC 1 and FPC 3 will left in that virtual chassis). Option 2: If the problem persists, isolate the inactive members from the VC and upgrade them individually by performing the following steps: Isolate the affected switch (the Inactive member) by unplugging the VCP cables. ), (Disable the Virtual Chassis fabric or mixed mode setting if it was previously enabled. When you change member 0 to member 1 (step 2) you will lose network comms. To commit all changes to the active configuration, select Commit Options > Commit. In NPM when you list resource on a Juniper switch you can see the Virtual Chassis Port (VCP), enable monitoring on these ports and create and up/down alert on the interface, If the switch is down or missing a cable you will be notified. I have four ex-4300 switches configured in a single virtual chassis. Example: request system software add /var/tmp/ jinstall-ex-4300-18.4R2-S3-signed.tgz member 1 reboot. Copyright 2020 Elevate Community | Juniper Networks. it returns a banner message indicating to connect specified VC ports. In order to configure them in that above mentioned scenario. [EX/QFX] Resolution Guide - Troubleshoot Virtual Chassis (VC) Your issue might be related to the following PR, https://prsearch.juniper.net/InfoCenter/index?page=prcontent&id=PR1442376, Thanks for help. Upto 4 members supported. I have a short time window and no time/material to lab this unfortunately. The associated jnxContentsContainerIndex in the. Have you looked at the NPM Tutorials on the Support page? I looked through the MIB but nothing was obviuos as member status to me. Our campus and branch solutions, driven by Mist AI, deliver industry-leading insight, automation, and security to drive real business results. In the switch details page under utilities, we can select Edit virtual chassis to add other members to the Virtuall Chassis. A reboot is required after running these commands. I want specific switches to keep their member number (the first digit in the port config ge-X/y/z) so that my port configurations don't go wrong if there's a reboot and the 1198 switch becomes member 0. After fpc1 has rebooted and become fpc0, you have to move interface configuration. which might be better to give you a better overview of the box, e.g. my config is like this, i.e member 0 and 1 are REs for the VC ,member 2 is not pre-defined as linecard. FPC 0 and FPC-2 would be in linecard role. After removing the FPC 0 and FPC 2 from this virtual chassis. I want to make my Linecard as a Back-up Role. Virtual ChassisAutomatic software update on prospective member switches More Information. Usually a power cycle will fix it and you may not see it. When i bring down both master and backup members , member 2 would not transition into Master role and stay as LC. This thread already has a best answer. Cookie Notice Options Required Privilege Level view Output Fields Table 1 lists the output fields for the show virtual-chassis command. This will help users who prefer to change any member in a Virtual Chassis to a Routing Engine role. I performed this activity and your steps helped me a lot. Validate via show virtual-chassis status and clear information regarding fpc0 and fpc2: First you want to delete all interfaces related config for fpc0 and fpc2: Then your renumber one switch at a time (the switch will reboot!). Benjamin. Privacy Policy. [EX] Converting a Virtual Chassis Member Role to - Juniper Networks [EX] How to troubleshoot the Virtual Chassis (VC - Juniper Networks Log into ask questions, share your expertise, or stay connected to content you value. Now, virtual chassis is again left with two members after deleting newly added member. If you renumber the switches, then yes, you will have to redo the configuration. Understanding QFX Series Virtual Chassis - Juniper Networks See Setting an Uplink Port on an EX Series or QFX Series Switch as a Virtual Chassis Port. Power Off all members other than the Primary. How to configure Virtual chassis on Juniper QFX5100 Thank you for your answers. Virtual Chassis operation when both Master and backup member fail After the device comes up you can check again for the vc-ports status: root> show virtual-chassis vc-port. 2. 2023 Juniper Networks, Inc., All rights reserved. 5) I want to change FPC 1 to FPC 0 ( MASTER) and FPC 3 TO FPC 1 ( Backup). 2) After that FPC1 would be my master and FPC 3 would be my backup. Example Copyright 2020 Elevate Community | Juniper Networks. The previous ECalderon 's post might be the issue since you console to the device https://www.juniper.net/documentation/en_US/junos/topics/task/configuration/virtual-chassis-mx-series-disabling-split-detection.html, https://forums.juniper.net/t5/Junos/EX2300-48T-Stop-working-after-random-time-after-upgrade-to-19/td-p/462208, https://forums.juniper.net/t5/forums/v3_1/forumtopicpage/board-id/JUNOS/thread-id/14654/page/3. You can have only two REs. By rejecting non-essential cookies, Reddit may still use certain cookies to ensure the proper functionality of our platform. Edit virtual chassis window will not have Trash / Delete button when VCP links are connected and up. One more thing which I would like to ask that. Kudos. Then, once things are the way that you want them with regards to the virtual-chassis, configure it as preprovisioned where you specify the member ID tied to each serial number. =====If this worked for you please flag my post as an "Accepted Solution" so others can benefit. Select existing virtual chassis > More > Edit virtual chassis. member 1 { role routing-engine; serial-number AAAAAAAAA; } member 0 { role routing-engine; serial-number BBBBBBBB; } } Could I just change the serial number, commit and reboot ? Major alarm will shown in logs that Virtual-chassis member is having different version, however all members are running on same version and status of VC member is Present. I am also trying to do the same type of monitoring. Thank you! I am trying to clarify my understanding on what if both the Master and backup member were to fail in a preprovisioned virtual chassis. Symptoms How do I change my Linecard to a Backup? I can't see any other settings I can make or unmake to fix it - anyone got any ideas? You have to be careful not removing both paths in your VC, but something like with the assumption that your have cabled your VC in a ring-topology. Ron, That looks OK by me. Please review everything I do, as it's just written instructions which I haven't done on actual equipment. Solution In this case, the member switch can be accessed by using the following shell command: root% rlogin -Ji fpc <member-id> Modification History 2020-02-27: Article checked for accuracy; content re-arranged for clarity; article found valid AFFECTED PRODUCT SERIES / FEATURES you only have vcp-0 and vcp-1 even in multi-chassis systems. There is no current "member count" value in the OID tree. I tried to connect to the backup switch by console cable, but the console connection also didn't work, so I suppose that the switch is dead (but ports blink) The question is - if I poweroff/poweron the backup switch and it will add to virtual-chassis after reboot, will it disturb network on master switch? Is it possible to configure the VC such that when both master and backup members fail , the Linecard can transition into Master role.If yes is it possible in the pre-provisioned mode OR only in non-provisioned mode ? Virtual Chassis - Primary and Backup Change After Reboot Is there anyway to manipulate the value that displays on the Node Details page so that instead of displaying value 6 it shows Online? if planned VCP is between primary and new member, Port IDs should be added under primary and new member. Actually on both virtual chassis you should also configure 'no-split-detection': Thanks Jonas. Alias support for Virtual Chassis and Virtual Chassis Fabric nodes, Command forwarding support for MX Series Virtual Chassis, Dedicated Virtual Chassis port link aggregation, Digital optical monitoring (DOM) on Virtual Chassis ports (VCPs), Enabling Ifstate, peer infra, and TCP/IP stack parallelization on Virtual chassis, Interchassis redundancy support using Virtual Chassis, LAG local minimum links per Virtual Chassis or VCF member, Layer 2 bridging support for MX Series Virtual Chassis, Link aggregation groups (LAGs) over Virtual Chassis ports (VCPs), MX Series Virtual Chassis commit time improvements, MX Series Virtual Chassis support for Layer 2 spanning-tree protocols, MX Series Virtual Chassis support for MX240 and MX480 member routers in a VC containing MX2010 or MX2020 member routers, MX Series Virtual Chassis support for determining member router health, MX Series Virtual Chassis support for inline flow monitoring, MX Series Virtual Chassis support for locality bias, MX Series Virtual Chassis support for logical systems, MX Series Virtual Chassis support for targeted traffic distribution and redundancy mechanisms, Member specification support in file commands for MX Series Virtual Chassis, Monitor Virtual Chassis ports (VCPs) with SNMP, RJ-45 interfaces as Virtual Chassis ports, Relay daemon code removed for MX Series Virtual Chassis, Subscriber management over MPLS pseudowire logical interface on virtual chassis, Virtual ChassisAutomatic software update on prospective member switches, Virtual ChassisAutoprovisioning of Virtual Chassis ports (VCPs), Virtual ChassisFront-panel configuration of uplink module ports as Virtual Chassis ports (VCPs), Virtual ChassisSFP uplink module port interconnection of member switches.