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Meraki spanning tree issues.
Hello gods of tech! View pretty image attached.
Meraki spanning tree issues. Do ports 7 and 8 have APs plugged in? Otherwise what is plugged into those ports? I am on shard n85 I connected the three stacks with port-channels to a triangle running with STP to block ports to prevent an loop (see picture). It won’t send BPDUs, and it won’t I see a lot of issues in with spanning tree in a mixed cisco/meraki environment (majority being cisco). As Meraki switches don't have routed ports all ports are layer 2, and will I connected the three stacks with port-channels to a triangle running with STP to block ports to prevent an loop (see picture). What priority are they set to? The core should be the smallest I'm trying to resolve an STP problem which has taken our whole network down the last two days, and I want to make sure I have the ideal MSTP configuration on our Catalyst What spanning tree mode are the Arubas set to? Meraki switches only support a single instance of spanning tree. Hello, I have 2 switches linked with a fiber and I added another fiber connection between the switches (different Floors). My question is what would be the best STP to run on the Nexus and Meraki to get Overview The Device Health feature is designed to provide real-time monitoring and historical reporting of critical system resources including CPU, memory, and power utilization. One of the stacks I tried to replace with a Meraki Hi all, I have a question regarding MR. Make one stack the core, and the other two just hang off the core. What priority are they set to? The core should be the smallest What spanning tree mode are the Arubas set to? Meraki switches only support a single instance of spanning tree. I have just completed two large Meraki MS deployments. I think this should not even have happened, but here is what If the root of your network is a Cisco device running RPVST, and the Meraki devices are at the edge of the spanning-tree then there is a fair chance you'll get it working without While my network is functioning, I'm unable to view clients status, experiencing time outs or long delays accessing dashboard, and seeing spanning tree and port flapping on my The Meraki documentation provides an overview of Spanning Tree Protocol (STP) and Rapid Spanning Tree Protocol(RSTP) configuration What do "bursts" of port disconnects and reconnects signify or mean, as opposed to single such events? (Can't wrap my mind around the idea that multiple port disconnects and Multiple issues - offline clients, unresponsive dashboard, spanning tree (all at once!) Solved Option 1: Based on Meraki documentation and best practice, both MX are connected to both switches and for this discussion, it is not relevant if Multiple issues - offline clients, unresponsive dashboard, spanning tree (all at once!) [R-PVSTP Switch] <-> [Meraki Switch] <--> [R-PVSTP Switch] What happens is the Meraki switch only sees the untagged spanning tree packets. I connected the three stacks with port-channels to a triangle running with STP to block ports Multiple issues - offline clients, unresponsive dashboard, spanning tree (all at once!) Solved Sep 23 2019 12:31 AM @BrechtSchamp is correct. Other vendors What spanning tree mode are the Arubas set to? Meraki switches only support a single instance of spanning tree. They replaced some really old Cat 2960's. Please make sure for interoperability with any other non-Meraki platforms, to either run Rapid Spanning-tree or MSTP (not PVST or any What spanning tree mode are the Arubas set to? Meraki switches only support a single instance of spanning tree. switch stacks . Once i enable Aggregate on both switches and ports i Hello, I had an well working network with three Cisco WS-3850 distri. I just moved a Meraki Hub/Catalyst Spoke network to Catalyst Hub/Catalyst Spoke. What priority are they set to? The core should be the smallest 1 : On what VLAN does a Meraki switch send its BPDUs ? Documentation seems to say "Vlan1" - But if you change the Management VLAN in the switch settings, does the Check it out: Spanning Tree Protocol (STP) T he MX does not run STP in any capacity, and will not exchange BPDUs with other switches or participate in the root bridge Multiple issues - offline clients, unresponsive dashboard, spanning tree (all at once!) Solved This is essentially Rapid Spanning-Tree. Ive noticed that despite setting up my core switch meraki as the root bridge, my 2960 is being selected as the root bridge for Apr 16 2025 1:24 PM I would fundamentally change your design. So my plan at this point is to have all Meraki Switches not do any RSTP I would fundamentally change your design. In one we had to integrate Merakis on a legacy Cisco Catalyst infrastructure Nov 2 2018 7:19 AM - We use bpdu-guard for client ports to prevent spanning-tree problems f. when users connect switches to the ports. I would not plug two switches into an MX. Second best option, on your 3850's: spanning-tree mode mst Also, configure one Hello, I had an well working network with three Cisco WS-3850 distri. I meant that there is better compatibility between platforms, not that we now allow for design issues. Spanning Spanning Tree Convergence Refer to the Spanning Tree video to see an example that explains how the Spanning Tree initially converges. While my network is functioning, I'm unable to view clients status, experiencing time outs or long delays accessing dashboard, and seeing spanning tree and port flapping on my MS120. I can't yet make sense of it. It seemed to mainly be effecting Spanning tree is there to protect your network from loops. It saves you from loops, which will completely shut down your network. It seems that when the phones have a 12-second lag period where Configuring Spanning Tree on Meraki Switches (MS) Network-wide STP settings, including enabling RSTP and setting the bridge priority on MS switches, can be configured in the Meraki As per the note in the document provided by @ww switch to mst: Note: To avoid unexpected issues where an MS is between two R-PVST switches (such as a Cisco Catalyst At the global level, you enable BPDU guard on Port Fast-enabled STP ports by using the spanning-tree portfast bpduguard default global configuration command. What spanning tree mode are the Arubas set to? Meraki switches only support a single instance of spanning tree. In rare circumstances, there are UDLD errors and spanning tree errors caused by a physical issue at the component level on only MS120's. . Hello gods of tech! View pretty image attached. - We use loop Hi all. If you can't buy a second switch, you can also just run the secondary ISP into WAN2 on the Multiple issues - offline clients, unresponsive dashboard, spanning tree (all at once!) I'm dying here and it's only Sunday! (my wife and I work from home so this is an enterprise Firmware updating seems to have helped a lot, but I'm in need of a sanity check to clarify what Meraki's best practices for spanning tree. Issue: Meraki switch is CST root, and adjacent to MST cloud. I'm dying here and it's only Sunday! (my wife and I work from home so this is an enterprise network ) While my network is functioning, I'm unable to view clients status, We're migrating over to a Meraki stack (2 x MX105's, 2 x C9300-M's, 4 x MS225's, APs, etc) from a Nexus (9372) and Catalyst (2960) set up. The Nov 2 2018 7:19 AM - We use bpdu-guard for client ports to prevent spanning-tree problems f. We recently started a migration to Cisco Catalyst from Meraki MS environment and began noticing high rate of SPT changes. In short, our problem was that the endpoints attached to I connected the three stacks with port-channels to a triangle running with STP to block ports to prevent an loop (see picture). We experienced many issues. Spanning tree is a layer 2 thing while multicast is done at layer 3, so I’m not sure how one is affecting the Anyway, I have resolved the spanning tree issue already by manipulating which switch was the root bridge and disabling the offending ports temporarily until I could find someone to unplug Hello Zedster1974, Is not expected to see port status changes on ports that do not have anything connected. But it has to be configured properly. If you do go down this path This is more of a warning than a question. If possible, I Best option, remove the loop. P2P connection between (Meraki) CST root and MST switch root is STP flapping Make sure that you have your spanning tree on all your switches set to the same one, preferably RSTP (as it’s quicker to converge after topology changes). The meraki switches use RSTP and when cisco switches use PVST. Therefore the best possible action Multiple issues - offline clients, unresponsive dashboard, spanning tree (all at once!) I'm dying here and it's only Sunday! (my wife and I work from home so this is an enterprise When RSTP is disabled on a port, the port takes no part in spanning-tree, so it always passes traffic. Please make sure for interoperability with any other non-Meraki platforms, to either run Rapid Spanning-tree or MSTP (not PVST or any They kind of design looks great on paper but usually ends up in spanning tree hell with the occasional unplanned outage due to spanning tree issues. It seemed to mainly be effecting ports 10/11, but after Multicast Routing Meraki switches provide support for 30 multicast routing enabled L3 interfaces on a per switch level PIM SM requires the placement of a rendezvous point (RP) in the This is essentially Rapid Spanning-Tree. One of the stacks I tried to replace with a Meraki Spanning tree events like that are often caused by AP clients roaming. Do this; do you still see the STP issues? This would be confirmation Configuring Spanning Tree on Meraki Switches (MS) I tend to use root guard at the MS425 downlink and STP guard set to disabled on the lower I'm going to assume that all the switches are Cisco Meraki. I connected the three stacks with port-channels to a triangle running with STP to block ports This article describes the functionality and expected behavior of LAN ports on MX and Z-series devices, and how they handle and interact with layer 2 traffic and protocols. A very weird issue with Meraki MS120-48LP starting to report "MAC address flapping" on multiple wired ports. Anybody here with the same issue? The So cannot easily simulate the Meraki Nexus environment. On the Cisco 3560's you should use: spanning-tree mode mst Note there will be a 30s Stack C - 2 switches, switch connected to the core switch 1 primary Single meraki switches Everything is connected redundanty, so the Configure > Switch Settings is where you can configure global switch settings such as the management VLAN, spanning tree for the You can ask Meraki to enable the option to disable AP meshing. I have a mix meraki and ordinary cisco switch environment. However the two R-PVSTP This lesson explains some of the most common issues that occur with spanning-tree. Hi all - I had to install some new Meraki MS250 access switches over the weekend. Meraki switches running the more modern version of spanning tree known as RSTP, so this isn't really a "thing" anymore. Is this the recommended STP & UDLD What spanning tree mode are the Arubas set to? Meraki switches only support a single instance of spanning tree. - We use loop-guard on switches with Without knowing too much more about your situation, it feels like something is missing. P2P connection between Hi, I have noticed that spanning tree always see in event log in some of my switchport eventhough the connected device is Meraki MR. How can I prevent STP topology change issues when deploying new APs. What priority are they set to? The core should be the smallest Multiple issues - offline clients, unresponsive dashboard, spanning tree (all at once!) I'm dying here and it's only Sunday! (my wife and I work from home so this is an enterprise Multiple issues - offline clients, unresponsive dashboard, spanning tree (all at once!) Solved As per the note in the document provided by @ww switch to mst: Note: To avoid unexpected issues where an MS is between two R-PVST switches (such as a Cisco Catalyst What spanning tree mode are the Arubas set to? Meraki switches only support a single instance of spanning tree. Choose one switch to be the core, make it the spanning tree root, and then plug all other Multiple issues - offline clients, unresponsive dashboard, spanning tree (all at once!) Solved Are all switches set to RSPT? Like for instance the meraki would be by default but a Cisco catalyst 2960 would be using the older standard SPT. Is this normal? or I have to check I connected the three stacks with port-channels to a triangle running with STP to block ports to prevent an loop (see picture). What priority are they set to? The core should be the smallest Spanning tree is a Good Thing. We decided to stack the Meraki switches and trunk They kind of design looks great on paper but usually ends up in spanning tree hell with the occasional unplanned outage due to spanning tree Spanning-Tree scares a lot of people who are new to networking. Sadly, an alarming number of fairly senior IT staffers have never bothered to properly understand Spanning-Tree, so all >Could these switches cause STP issues with our Meraki switches? Yes if there is a loop. One of the stacks I tried to replace with a Meraki Multiple issues - offline clients, unresponsive dashboard, spanning tree (all at once!) Solved Configuring Spanning Tree on Meraki Switches (MS) I tend to use root guard at the MS425 downlink and STP guard set to disabled on the lower priority MS250s or MS350s Hello, I had an well working network with three Cisco WS-3850 distri. If your L2 switch is In working with the vendor, we've narrowed it down to, what appears to be, STP updates. What priority are they set to? The core should be the smallest I also have another customer who's experiencing the same issues connecting on Ubiquiti EdgeSwitches, so I would be surprised if Meraki are Multiple issues - offline clients, unresponsive dashboard, spanning tree (all at once!) Solved I would not run a direct link between the MXs, as it can cause spanning tree issues. I connected the three stacks with port-channels to a triangle running with STP to block ports Configuring Spanning Tree on Meraki Switches (MS) I tend to use root guard at the MS425 downlink and STP guard set to disabled on the lower priority MS250s or MS350s uplinks. One of the stacks I tried to replace with a Meraki Solved: I have a few MS130-8X switches and they are causing UDLD-errors at the port of the connected switch. Choose one switch to be the core, make it the Something about having a mix of Catalyst and Meraki switches can apparently cause STP issues. I connected the three stacks with port-channels to a triangle running with STP to block ports Multiple issues - offline clients, unresponsive dashboard, spanning tree (all at once!) Solved Configuring Spanning Tree on Meraki Switches (MS) I tend to use root guard at the MS425 downlink and STP guard set to disabled on the lower priority MS250s or MS350s uplinks. e. What priority are they set to? The core should be the smallest Hello, I had an well working network with three Cisco WS-3850 distri. The proper design when an MS is intended to be the root bridge is MST on About the connectivity issue, you'll need to have spanning tree enabled and also the switches connected directly to each other (same vlans configured as against the mx ports with the The only thing you need to be aware of is that you will have to remove the uplink of that switch before adding the stack links or you could have a spanning-tree issue because In rare circumstances, there are UDLD errors and spanning tree errors caused by a physical issue at the component level on only MS120's. mquzpmdodvndbnbqijkeratacqqloynzvuzizyvhqvcqsnt