STP实验
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2
SW4
STP
SW4
[SW4]display stp -------[CIST Global Info][Mode MSTP]-------
Bridge ID Bridge times Root ID/ERPC RegRoot ID/IRPC RootPort ID BPDU-Protection Bridge ConfigDigest-Snooping TC or TCN received Time since last TC
STP
1-1 R1 SW1 SW2 2 1 R2
1. 2. 3. 4. SW1 SW4
STP SW2 PC
STP
1.
STP 1 SW1 HCL STP
STP SW1 SW1 Mac
[SW1]display stp -------[CIST Global Bridge ID Bridge times Root ID/ERPC RegRoot ID/IRPC RootPort ID BPDU-Protection Bridge ConfigDigest-Snooping TC or TCN received Time since last TC
2.
SW4 SW4 32768 1 SW4 SW4 4096 32768 SW4
[SW4]stp priority 4096 [SW4]%Mar 21 20:50:27:109 2018 SW4 STP/6/STP_DETECTED_TC: Instance 0's p ort GigabitEthernet1/0/2 detected a topology change.
Info][Mode MSTP]------: 32768.7aef-e4ea-0100 : Hello 2s MaxAge 20s FwdDelay 15s MaxHops 20 : 32768.7aef-e4ea-0100, 0 : 32768.7aef-e4ea-0100, 0 : 0.0 : Disabled : Disabled : 7 : 0 days 0h:0m:40s
4.
SW1
PC
[SW4]interface g1/0/3 [SW4-GigabitEthernet1/0/3]stp edged-port Edge port should only be connected to terminal. It will cause temporary loops if port GigabitEthernet1/0/3 is connected to bridges. Please use i t carefully.
2
SW2
STP
SW2
g1/0/2
[SW2]display stp brief MST ID Port n 0 GigabitEthernet1/0/1 0 GigabitEthernet1/0/2
Role ROOT ALTE
Βιβλιοθήκη Baidu
STP State FORWARDING DISCARDING
Protectio NONE NONE
: : : : : :
4096.7af0-0e17-0400 Hello 2s MaxAge 20s FwdDelay 15s MaxHops 20 4096.7af0-0e17-0400, 0 4096.7af0-0e17-0400, 0 0.0 Disabled
: Disabled : 8 : 0 days 0h:1m:30s
3. SW4 SW2 20 1 SW2
SW2 STP SW2 SW2 g1/0/2 SW1 cost SW4 SW1 1000 stp cost 1000 H3C g1/0/2 cost SW1 cost
[SW2]interface g1/0/2 [SW2-GigabitEthernet1/0/2]stp cost 1000 [SW2-GigabitEthernet1/0/2]%Mar 21 22:16:05:399 2018 SW2 STP/6/STP_NOTIFI ED_TC: Instance 0's port GigabitEthernet1/0/1 was notified a topology ch ange.
2
STP SW4 g1/0/2
SW4
SW4
[SW4]display stp brief MST ID Port n 0 GigabitEthernet1/0/1 0 GigabitEthernet1/0/2
Role ROOT ALTE
STP State FORWARDING DISCARDING
Protectio NONE NONE
[SW4]interface g1/0/4
[SW4-GigabitEthernet1/0/4]stp edged-port Edge port should only be connected to terminal. It will cause temporary loops if port GigabitEthernet1/0/4 is connected to bridges. Please use i t carefully.