BPDU FILTER - SWITCHTECH #8

 

BPDU FILTER - SWITCHTECH

Perhatikan topologi berikut ini,

Konfigurasi pada kali melakukan dua metode yaitu,

Konfigurasikan spanning tree portfast pada port akses SW1 dan 

Aktifkan BPDU filter pada interfacee0/0 pada SW1

Konfigurasi portfast

SW-1

SW1(config)#interface e0/0

SW1(config-if)#spanning-tree portfast

SW1(config-if)#spanning-tree bpdufilter enable

hapus dulu nilai bpdu bila sebelumnya sudah ada nilainya 

SW-1

SW1#clear spanning-tree counters interface e0/0

SW-1

SW1#show spanning-tree interface e0/0 detail

Port 1 (Ethernet0/0) of VLAN0001 is designated forwarding

Port path cost 100, Port priority 128, Port Identifier 128.1.

Designated root has priority 32769, address aabb.cc00.0100

Designated bridge has priority 32769, address aabb.cc00.0100

Designated port id is 128.1, designated path cost 0

Timers: message age 0, forward delay 0, hold 0

Number of transitions to forwarding state: 1

The port is in the portfast edge mode

Link type is point-to-point by default

Bpdu filter is enabled BPDU: sent 0, received 0

Terlihat bahwasanya nilai BPDU yang sent dan received akan selalu 0 karena di filter. Berbeda pada BPDU Guard dImana portnya akan langsung menjadi down, maka pada BPDU Filter interfacenya masih tetap UP.