Questions tagged [spanning-tree]
For questions about Spanning Tree Protocol (STP), a common protocol to prevent bridge loops at OSI layer-2.
350 questions
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MSTP Path Selection Issue in Ring Topology (Juniper EX2300-C & Cisco 3560-CX)
I'm currently setting up a prototype ring (or small mesh) network using MSTP, and I'm running into an issue with path selection. The network consists of three switches:
Switch N: Juniper EX2300-C (...
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Dell N-Series STP root problem
I don't understand what is going on with a switch I just purchased. Sorry I only have a rudimentary knowledge.
I currently I have two switches N3048 core switch which is acting as the root (spanning-...
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Propagation of multicast frames used for networking protocols (e.g., stp, lldp)
I'm looking for proper resources on how frames with multicast destination mac addresses, specifically those used for networking protocols such as STP, are propagated within a layer 2 domain.
For ...
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How Spanning tree (RSTP) will work in the below case
I have New 2xDELL Switches in VLT Domain connected to old 2xDELL Switches in another VLT Domain and the link between these switches should carry vLAN 5
However , vLANs 2,3,4 should be tagged on the ...
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Switch Module on a Router
I have configured spanning tree on switch A.
I can show the spanning tree and it is running on switch A
The 2 interface does not form an etherchannel, they are individual port
There are no broadcast ...
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RSTP Inferior BPDU receive on Alternate Port
As per the specification and the materials available online, RSTP is supposed to have the features like Uplink fast and Backbone fast already defined in the IEEE specification. I did have a look but I ...
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RSTP and MAC addresses: how should I ensure that the bridge switch has the lowest MAC?
I'm very confused about RSTP; what I've read states that the bridge is selected by either lowest priority (set in the switch configuration) or by lowest MAC. Does that mean that I have to "hand-...
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Does loop show up temporaily when connecting 2 working switches in STP(802.1d)?
I am learning CCNA. I can understand the STP (802.1d) port roles and states.
I wonder if the network (they have already been working) would be in loop within a very small moment after simultaneously ...
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Maximum switch using RSTP or MSTP
Great to find you mates here.
I am new to Spanning Tree.
According to https://www.etherwan.com/sites/default/files/setting_up_stp-rstp-mstp_and_alpha_ring.pdf
STP can support up to 14 switches
RSTP ...
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Identify neighbour causing spanning tree to block port on HPE Aruba 2530 (J9773A)
Spanning Tree is blocking one of the ports on one of my Aruba J9773A switches.
How do I discover what port on what device is on the other end of the cable connected to that port?
It's probably one of ...
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Connectivity between MOXA and S20 Reason
I want to connect MOXA SWITCH ED510E with MOXA SFP-1GLXLC-T 1310nm to S20 Reason Managed switch with SFP AXCEN AXFD-1314-0w23 1310nm but when I connected both there is no communication also on MOXA ...
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leaf switches and STP issue
I have a situation where I need to connect leaf switches in the following manner.
why we are doing this? we are connecting two different sites,kind of a cross site connection.
The red cross mark is ...
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STP TCN at root port role change
I am facing a situation in our work topology, and I will try to simplify the question as much as possible. I have this non-root switch (SW1) that has two ports connected to separate switches in a ...
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Dell VLT (MLAG) and Root Bridge Priority
I'm not a network guy...
We'll be deploying some Dell switches configured for VLT soon. From what I understand, this is just Dell's version of MLAG. Correct me if I'm wrong, but I'm pretty sure that I ...
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STP related question
Hi this is a portion of my current set up..
All vlan ports are untagged. Everything works and communicates fine until a connection is made between the 2 switches it takes down the network and the pc ...
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