
Importance of BPDU Guard and BPDU Filter - Cisco Community
2010年6月30日 · Adding to Ganesh's Document, when (spanning-tree portfast bpdu-filter default) enabled Globally , an STP port enabled with portfast is not assumed to recieve BPDUs, However, if for any reason the port recieves BPDUs, the Port shall go into (Blocking , listening , learning and then Forwarding state ) HE RECALLS. and the port will be subject to noramal STP …
Advanced STP Features: PortFast, BPDU Guard, and BPDU Filter
BPDU Guard. BPDU guard prevents a port from receiving BPDUs. If the port still receives a BPDU, it is put in the error-disabled state as a protective measure. Much like the PortFast feature, BPDU Guard has two configuration options: globally (spanning-tree portfast bpduguard default) and per interface (spanning-tree bpduguard enable). As you ...
BPDU Guard explained please - Cisco Community
2011年6月14日 · BPDU guard is a portfast feature that protects your spanning tree on edge ports (Access ports). It (in layman's terms) monitors your port for BPDUs. If it see's one (presumably from an unauthorized switch, hub or host), it shuts the port down (err-disabled).
Características avanzadas de SpanningTree: PortFast, BPDU Guard …
2017年4月10日 · BPDU Guard y BPDU Filter en modo global son dependientes de PortFast operacional. BPDU Guard y BPDU Filter en modo interface es incodicional. Un BPDU Filter mal configurado es mucho mas peligroso que un PortFast mal configurado, aun así el IOS no genera un mensaje de advertencia acerca de esto.
Spanning tree Porfast y BPDU Guard - Cisco Community
2025年1月1日 · BPDU Guard; BPDU Filtering; Root Guard; Loop Guard; Porfast. Vamos a hablar de los estados que atraviesa un puerto después de establecer el enlace, un proceso clave para la comunicación de datos. Una vez conectado, el puerto pasa por etapas que garantizan una conexión estable y eficiente.
Root Guard y Portfast BPDUGuard - Cisco Community
2011年8月18日 · El BPDU guard se utiliza con el fin de evitar la entrada de cualquier BPDU por un determinado puerto en el cual no debe recibirse nunca una BPDU. Puedes conbinarlos con el Porffast para los puertos de acceso. Por ultimo, con RSTP ya …
Spanning Tree Protection - Cisco Community
2019年3月1日 · To enable Loop Guard on a specific interface, use the following: Switch(config-if)# spanning-tree guard loop. Related Information: Spanning Tree Protocol Root Guard Enhancement. Spanning Tree PortFast BPDU Guard Enhancement. Spanning-Tree Protocol Enhancements using Loop Guard and BPDU Skew Detection Features. Configuring UDLD
Fonctionnalités avancées de Spanning Tree : PortFast, BPDU Guard …
BPDU Guard et BPDU Filter en mode global dépendent de PortFast opérationnel. BPDU Guard et BPDU Filter en mode interface sont inconditionnels. Un BPDU Filter mal configuré est beaucoup plus dangereux qu'un PortFast mal configuré, cependant l'IOS ne génère pas de message d'avertissement à ce sujet.
Solved: BPDU Guard commands - Cisco Community
2012年9月21日 · Hello everybody, I'm a CCNP student from Italy. I have a doubt about BPDU Guard commands. If you have read "CCNP Implementing Cisco IP Switched Networks (SWITCH)", the BPDU Guard section explain the fallowing: To enable BPDU Guard or to disable BPDU Guard on a Cisco IOS–based Catalyst switch, use the following global configuration …
Solved: BPDU guard - Cisco Community
2010年6月18日 · Hello, I understand that a blocking port on a switch that is part of a spanning tree relies on recieving the BPDU packets every 2 seconds and shoudl it not then the port is changed to forwarding mode. I worries my that should this happen I would get some loops and serious issues on my network, how...