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 Filter. BPDU Filter prevents specified ports from sending or receiving BPDUs. Again, there are two methods to configure this feature: globally (spanning-tree portfast bpdufilter default) and per interface (spanning-tree bpdufilter enable). The interface configuration filters both incoming and outgoing BPDUs unconditionally – independent ...
BPDU Filter - Cisco Community
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.
Solved: BPDU filter - Cisco Community
2019年2月15日 · Bpdu filter will prevent inbound and outbound bpdu but will remove portfast state on a port if a bpdu is received. Enabling BPDU filtering on an interface is the same as disabling spanning tree on it and can result in spanning-tree loops.
Fonctionnalités avancées de Spanning Tree : PortFast, BPDU Guard …
La fonction BPDU Filter empêche certains ports spécifiques d'envoyer ou de recevoir des BPDUs. À nouveau, il existe deux méthodes pour configurer cette fonctionnalité : Globalement ( spanning-tree portfast bpdufilter default ) et par interface ( spanning-tree bpdufilter enable ).
Solved: BPDU Guard vs BPDU FIlter - Cisco Community
2006年5月19日 · Actually even if you enable BPDU-Filter some BPDU's are still sent when an interface link first comes up: cat-2950#sho spanning-tree interface fastEthernet 0/1 detail. Port 1 (FastEthernet0/1) of VLAN0010 is designated forwarding. Port path cost 19, Port priority 128, Port Identifier 128.1. Designated root has priority 24586, address 000f.3440.2e80
Importance of BPDU Guard and BPDU Filter - Cisco Community
2010年6月30日 · BPDU filter only stops sending BPDUs on that interface, the port is able to receive them, now, if the port is configured in spanning tree port fast mode, it will stops sending BPDUs as well, even if no BPDU filter is configure, but, if the port receive BPDUs so it will start running spanning tree and will change its state according to the spanning tree roll assigned.
When is it appropriate to use "spanning-tree bpdufilter enable"
2019年3月7日 · BPDUfilter on the other hand just filters BPDUs in both directions, which effectively disables STP on the port.Bpdu filter will prevent inbound and outbound bpdu but will remove portfast state on a port if a bpdu is received.Enabling BPDU filtering on an interface is the same as disabling spanning tree on it and can result in spanning-tree loops.
Solved: BPDU filter is enabled internally - Cisco Community
2012年12月13日 · But the spanning-tree detail shows BPDU filter is enabled internally Port 1 (GigabitEthernet1/0/1) of VLAN0001 is forwarding Port path cost 4, Port priority 128, Port Identifier 128.1.
Solved: bpdu filter - Cisco Community
2008年7月16日 · hi everybody! I have a question about bddu filter feature. According to cisco press book ccnp bcmsn by David hucaby,stp still runs on portfast-enabled port.All portfast-enabled ports have bpdu filter feature automatcically configured. Then in the very same book i find" Bpdu is used to disable stp on...