Tag: spanning-tree

19 Should portfast be used on a port potentially connecting to an unmanaged switch? 2013-05-24T14:45:19.820

15 How is the root bridge elected in STP? 2013-05-08T11:07:04.530

14 Should i run UDLD with spanning tree? 2013-05-08T01:13:07.073

12 STP blocking port selection 2015-09-15T20:11:58.743

11 Preventing STP loops in etherchannels configurations 2013-05-30T05:33:59.587

11 Tracing TCN Messages in STP 2013-07-10T07:21:35.393

10 How can I make a PVST+ switch root towards MST network? 2013-06-09T18:33:53.530

9 Should spanning tree path costs match on a physical link? 2013-05-18T15:14:36.067

9 Trying to test a virtual lab VRRP configuration for STP issues 2013-06-30T08:40:10.487

9 How did I break (half of) my network? 2016-09-28T13:39:47.877

8 Migrating from STP short mode to long mode? 2013-05-13T21:03:16.080

8 Spanning tree Default Priority Values 2014-04-03T12:48:52.340

8 RSTP: Using switches in pairs to two switches? 2014-09-23T07:49:11.010

8 Will STP lose data whilst switching from a failed link? 2015-09-15T16:04:10.900

7 EoMPLS, MSTP, and RPVST 2014-04-30T19:04:32.747

7 RSTP Basics: Can this be done? 2014-08-28T07:52:41.977

7 MST Spanning Tree BPDU`s 2015-06-22T15:05:29.190

7 Manager states we cannot put retail switches on network due to fear of non-STP config and network storm problems. Is this true? 2017-06-14T03:07:04.260

6 Mixing Cisco STP Features: BPDU Guard, BPDU Filter, PortFast and PortFast Trunk 2013-11-24T13:44:37.820

6 RSTP vs. STP it really sounds just a big ball of semantics? what's the main difference between them? 2014-09-10T20:05:09.263

6 Should I disable STP on my access ports? 2017-01-23T14:48:09.157

5 Are multiple links with different VLANs between two switches possible? 2013-05-17T23:21:33.390

5 How do I configure a port as STP "non-edge" on Juniper EX switches? 2013-05-28T12:58:01.807

5 Design considerations with Spanning Tree when Wireless bridges are involved? 2013-08-13T05:16:30.163

5 Spanning-Tree debug logs C7600 2014-11-27T15:54:57.823

5 Cisco 2960 Portfast ports generate Spanning Tree TCN 2015-03-25T15:18:10.980

5 Spanning Tree protocol question 2015-09-15T08:49:33.190

5 Juniper trunking with two links (not using LAG) 2015-10-15T21:35:48.043

5 Native Vlan Cisco Catalyst and Layer 3 switch 2015-10-24T21:33:10.220

5 Building too large for ethernet runs 2017-03-01T05:22:58.643

5 When and where to use Spanning-Tree (Portfast) 2017-12-22T04:58:14.147

5 How to resolve a spanning tree issue on a server trunk port? 2018-06-11T20:11:17.163

5 Do layer 3 protocols use layer 2 protocols? 2018-10-30T20:28:32.620

4 Spanning Tree between only 2 HP switches connected via Etherchannel? 2013-06-13T20:31:36.437

4 Converting to extended STP system-id 2013-07-25T11:06:34.723

4 Spanning tree question 2013-07-29T18:18:42.777

4 Connect 3 Cisco switches via ethernet ports? 2013-08-19T09:01:44.740

4 STP Packet on specific interface eth1 2013-11-03T14:53:04.873

4 Odd stp issue on foundrys 2014-03-26T01:23:56.803

4 What happens when you stop receiving BPDUs with no L1 loss? 2014-04-03T22:52:53.333

4 Network Design Improvement Advice 2014-04-05T14:28:25.773

4 Can MSTP (802.1s) be used to emulate Rapid-PVST? 2014-04-13T05:49:38.717

4 When connecting 3 switch in Spanning tree, Should I use Switch port or SFP ports? 2014-05-20T18:52:21.107

4 LACP from Cisco 6509 to Force10 S48-10 - in default VLAN1 2014-06-17T19:49:48.717

4 Why FastEthernet STP Link Selected over EtherChannel? 2014-08-12T15:51:08.603

4 How to extensively test an ethernet switch 2015-04-15T22:41:59.963

4 Uplinkports between two Cisco stacks gets blocked by RSTP 2015-04-29T12:30:58.983

4 Why am I not seeing a spanning tree instance? 2015-09-11T20:07:45.057

4 Current Mode Spanning Tree 2015-10-17T19:35:47.483

4 Which switch MAC addresses are used for the Bridge ID in STP? 2015-12-21T11:53:58.580

4 Why use one MAC per port design in L2 switch for STP function 2016-02-17T05:54:55.697

4 Block L2 Loops without STP? 2016-10-29T23:26:30.163

4 Even after the spanning tree is determined why Root Bridge periodically send configuration message. 2017-03-05T05:31:30.653

4 RSTP Troubleshooting 2017-03-10T18:47:11.720

4 How far is VLAN broadcast propagated? 2018-03-11T06:41:16.380

4 High availability LAN segment with Cisco ISR4451X and 2 x Netgear GS724 - Port-channel vs. BDI vs. BVI? 2018-03-27T16:03:53.620

4 Is Per Vlan Spanning Tree or RPVST an open standard or can it only be implemented by Cisco? 2018-08-28T05:30:53.153

3 Brocade switches per vlan STP support 2013-05-28T16:39:18.477

3 Can a VLAN bridge be used to replace a bypass switch with an IPS device? 2013-05-30T13:14:24.377

3 Unmanaged Switches Effect on RSTP Ring? 2014-03-18T14:29:07.327

3 Connecting multiple links between switches 2014-04-23T18:38:47.397

3 Configuring stp port fast bpdu root guard 2014-05-26T20:15:18.057

3 What flags are used in BPDUs in STP? 2014-07-18T16:17:29.117

3 How to prevent possible loop? 2015-01-22T04:12:14.453

3 Multiple Spanning-Tree. Same VLANs on instance for all switches? 2015-02-19T13:02:25.573

3 Cisco / Spanning Tree on Access Ports from ISP 2015-03-16T05:03:24.670

3 Identifying Designated port in STP when Cost and BID are the same? 2015-05-15T04:00:32.930

3 STP load balancing 2015-06-09T09:03:09.800

3 Does the Juniper SRX have spanning-tree capabilities? 2015-06-18T05:05:36.880

3 How can I determine the STP designated bridge on Cisco IOS? 2015-06-26T16:00:36.437

3 Why showing IEEE Spanning Tree protocol 2015-09-16T18:36:14.673

3 UDLD on Nexus 5548 and Nexus 2232 2016-02-19T08:26:32.437

3 Spanning Tree -DesignatedPort 2016-03-06T10:04:51.940

3 I'm confused on how spanning tree works 2016-04-13T19:16:52.810

3 Why is there a large difference between BPDUs sent and received counters for RSTP root port? 2017-03-15T18:07:32.707

3 BPDU exchange between RSTP switches 2017-12-11T14:14:11.947

3 Does a bridge have the three STP timers per port or per bridge (one per bridge)? 2018-04-20T00:40:19.077

3 Spanning Tree on the interface that resides at end users 2018-10-30T13:31:23.533

3 How does STP convergence work? 2018-11-27T21:07:57.667

3 spanning tree RootGuard question on vPC switches 2018-11-30T17:37:40.110

2 Easy PVST to MST transition 2013-10-26T20:04:59.267

2 Spanning Tree design considerations: MSTP and regions 2014-02-15T21:50:32.223

2 Configure spanning-tree on Cisco router 2014-04-14T18:03:23.693

2 VLAN links for IP Cameras 2014-04-22T14:41:18.577

2 RSTP - 2 Ports of one Bridge connected 2014-05-23T13:55:38.933

2 Changing spanning tree data path? 2014-10-02T19:32:04.823

2 RSTP ignores VLANs and even "Non-STP" ports? 2014-10-28T15:01:32.397

2 HP Switching, DT Links to two STP switches? 2014-11-27T15:56:30.547

2 MSTP with no single point of failure with 4 switches and 2 regions 2014-12-08T19:38:33.890

2 MAC Flapping on Cisco 2960G 2015-02-27T02:02:48.130

2 STP Needed with this layout? 2015-04-09T13:54:31.110

2 How do I stop %C4K_EBM-4-HOSTFLAPPING message for wireless ports, but leave on for STP issues? 2015-04-23T14:32:25.500

2 Configuring RSTP and LACP. Unplugging a LACP port causes a topology change and pauses all switch traffic 2015-07-24T16:36:30.623

2 Cisco proprietary protocol - Spanning Tree 2015-10-23T20:44:30.160

2 Setting up a new Meraki MS220-48FP Switch to replace a pre-existing DellForce10 Switch 2015-11-17T16:34:28.907

2 Behavior about 802.1D with ISL 2015-12-02T18:52:22.227

2 Set priority of bridge to 0 but root bridge shows now priority 1 in STP 2015-12-08T12:45:27.180

2 PVST with VLANs not matching on switches 2015-12-10T19:55:28.507

2 Spanning-Tree Interoperability between ProCurve core & Cisco access layer 2015-12-15T17:15:59.090