Understanding and Configuring Spanning Tree Protocol (STP) on Catalyst SwitchesWith STP, the keyis for all the switches in the network to elect a root bridge that becomes the focal point in the network.All other
The unique bridge ID (device priority and MAC address) associated with each VLAN on each device.In a switch stack, all switches use the same bridge ID for a given spanning-tree instance. The spanning-tree path cost to the root device. ...
The Bridge Protocol Data Unit (BPDU) guard feature can be globally enabled on the switch or can be enabled per port, but the feature operates with some differences. When you enable BPDU guard at the global level on PortFas...
Within the time specified by stp tc-protection interval, the switch processes the number of TC BPDUs specified by stp tc-protection threshold. Packets that exceed this threshold are delayed, so spanning tree convergence may be affected. For example, if the period is set to 10s and the ...
The encryption mode, control VLAN ID, and password configured for Flush packets sent by a switch must be the same as those configured for receiving Flush packets on the remote device. The control VLAN cannot be a VLAN mapped to a VLAN-based Spanning Tree (VBST) dynamic i...
AutoQoS-Police-CiscoPhone!interface GigabitEthernet0/2 switchport access 23 switchport voice 123 srr-queue bandwidthshare 10 10 60 20 queueset 2 priority-queue out mls qos trustdevice ciscophone mls qos trustcos auto qos voip cisco-phone spanning-tree portfast service-policy input...
I have spanning-tree disabled on all our 3550s w/ inline power to all our Cisco Access-Points. Also, every AP has a different channel. No performance problems, more like PEAP authentication issues when XP domain users sign in! But thats a another can of worms....
One item to consider is how to handle remote access to the switch. Catalyst switches support both in-band and out-of-band management. In-band management interfaces are connected to the switching fabric and participate in all the functions of a switchport including spanning tree, Cisco Discovery ...
An account on Cisco.com is not required. Prerequisites for MSTP For two or more devices to be in the same multiple spanning tree (MST) region, they must have the same VLAN-to-instance map, the same configuration revision number, and the same name. ...
The Bridge Protocol Data Unit (BPDU) guard feature can be globally enabled on the switch or can be enabled per port, but the feature operates with some differences. When you enable BPDU guard at the global level on PortFast edge-enabled ports, spanning ...