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Hi Mahesh, You are right the lowest mac among the above is 0013.8030.5e80 just check from left to right with decimal value for each bit you will end in lower mac-address and in STP the bridge ID is used to elect the root bridge in the STP domain as well as to determine the root port for each of the remaining devices in the STP domain.it will elected automatically as per the election and If you have stp enabled and you want to know if it's required, remove the A~C link (or any one of the interswitch links), and then disable stp on all switches and then reconnect the cable, the LAN will either stay up or go down - if it goes down, you need it, if it doesn't you don't - if you do, disconnect the link to break the loop and Afternoon all Just had an interesting hour or so with my new ES-16-XG switches! Ihave 2 of these switches acting as Core Switches for mysmall network. I have 3x Hyper-V hosts each with a dual SFP+ card in. Each server has one 10gb connection to one of the switches. I also have 2x ES-48-500w PoE 4. Log into the router using the default credentials. Username: ubnt Password: ubnt. 5. Configure the switch0 interface and provide it with an IP address. 6. Navigate to the Wizards tab and run the switch wizard. Wizards > Switch. 7. Define the management access settings for the router. The available options are: STP - Spanning tree protocol. enables multiple cable connections. blocks all but one cable route to stop layer 2 loops. auto switches to an alternative cable route should the active one die. I.e. you will only be using one cable for traffic anyway. You aren't using aggregation so just stick to one cable from switch to router. Spanning Tree Protocol (STP) is a Layer 2 protocol that decides the best path for LAN traffic when multiple does not support STP, such as the Araknis router. And on the right side of the figure, each router has a VLAN trunk to connect and route for both VLANs. Router-on-a-stick (ROAS) is a feature that allows us to route packets to subnets associated with VLANs connected to a router 802.1Q trunk. It uses a router VLAN trunking configuration to give the router a logical interface connected to each VLAN.

Figure 3-46 shows a functional STP network. But what happens when there is an STP failure? There are two types of STP failure. First, STP might erroneously block ports that should have gone into the forwarding state. Connectivity might be lost for traffic that would normally pass through this switch, but the rest of the network remains unaffected.

Afternoon all Just had an interesting hour or so with my new ES-16-XG switches! Ihave 2 of these switches acting as Core Switches for mysmall network. I have 3x Hyper-V hosts each with a dual SFP+ card in. Each server has one 10gb connection to one of the switches. I also have 2x ES-48-500w PoE UniFi - USW: Configuring Spanning Tree Protocol – Ubiquiti STP: 802.1D States . Disabled (not listed in the table above): This indicates that the port is administratively shut down and is not in the STP topology. Blocking: This state indicates that the port would cause a switch loop without STP intervention. No user data should flow through these ports. This port may become unblocked in the event of receiving a BPDU that would be superior to its

STP enabled or disabled? | Ubiquiti Community

Nov 24, 2017 · Router-switch.com is the World's Leading Network Hardware Supplier, founded in 2002. We provide network equipment that reduce the cost of network infrastructure, and is renowned for their customer service and huge supply of robust, cost-effective products. Spanning Tree Protocol (STP) was developed before switches were created in order to deal with an issue that occurred with networks that were implementing network bridges. STP serves two purposes: First, it prevents problems caused by loops on a network. Second, when redundant loops are planned on a network, STP deals with remediation of network … Mar 27, 2013 · Spanning-Tree Protocol In this configuration STP will block these ports F0/24 of S1 , F0/23 and F0/24 of S2 and F0/24 of S3 to avoid loop at layer to two. Verify those ports blocked due to STP functions Feb 14, 2018 · By default, STP is disabled. To enable or disable Spanning Tree Protocol (STP) or Rapid Spanning Tree Protocol (RSTP) in the Insight mobile app: Launch the Insight mobile app. Tap Networks in the menu at the bottom. At the top, select the network location for which you want to enable or disable STP. Select Wired Settings > Spanning Tree (STP). STP (Spanning Tree Protocol) automatically removes layer 2 switching loops by shutting down the redundant links. A redundant link is an additional link between two switches. A redundant link is usually created for backup purposes. Just like every coin has two sides, a redundant link, along with several advantages, has some disadvantages.