WebJun 16, 2009 · spanning-tree vlan 3 port-priority 128 spanning-tree vlan 3 cost 19 spanning-tree cost 1 ! Obvoiusly, F0/7 has cost 19 for vlan 3 (grin). That's why it was in BLK state. When you configure port cost for a particular vlan it will override what you configured for all vlans. WebDec 7, 2016 · Switch# show spanning-tree vlan 200 VLAN200 is executing the ieee compatible Spanning Tree protocol Bridge Identifier has priority 32768, address 0050.3e8d.6401 Configured hello time 2, max age 20, forward delay 15 Current root has priority 16384, address 0060.704c.7000 Root port is 264 (FastEthernet5/8), cost of root …
Cisco Content Hub - Configuring RSTP and MSTP
WebMar 31, 2024 · VLANs and Loop Detection Guard; Spanning Tree Protocol and Loop Detection Guard. When both loop detection guard and STP are enabled on a device, STP takes over monitoring the network for loops. In this case loop-detect packets are neither received nor processed in the network. VLANs and Loop Detection Guard WebFeb 8, 2011 · The root of the issue is that in a Per VLAN STP environment, each VLAN acts as an independent STP domain. When you introduce another device that either doesn't understand PVST or is capable of flooding the BPDUs, the Cisco side will block VLANs to protect itself. From there which VLANs get blocked gets determined by priority and cost... mari hypher
Configuring Spanning Tree - Cisco
http://www.freeccnaworkbook.com/workbooks/ccna/configuring-per-vlan-spanning-tree-protocol WebMay 19, 2009 · Ecker is on the right track. with HP you assign ports tagged or untaged to a vlan. with cisco you designate a port as untagged only : - switchport mode access. - switchport access vlan ) or tagged aware specifying vlans. - switchport trunk encapsulation dot1q. - switchport trunk native vlan 1 ##untagged vlan. WebSep 27, 2024 · spanning-tree vlan vlan-id hello-time seconds. Example: Device(config)# spanning-tree vlan 20-24 hello-time 3: Configures the hello time of a VLAN. The hello time is the time interval between configuration messages that are generated and sent by the root switch. These messages mean that the switch is alive. natural mildew removal