3com 8807 User Guide

Figure 32   Network diagram for digest snooping configuration

# 3Com B is directly connected to A through GE 1/1 and GE 1/2 ports. Enable 
digest snooping on these two ports by executing the following command:

<SW8800>system-view

 

System View: return to User View with Ctrl+Z.

 

[3ComB]interface GigabitEthernet1/1

 

[3ComB-GigabitEthernet1/1]stp config-digest-snooping

 

[3ComB-GigabitEthernet1/1] quit

 

[3ComB]interface GigabitEthernet1/2

 

[3ComB-GigabitEthernet1/2]stp config-digest-snooping 

# Finally, you need to enable digest snooping globally on 3Com B.

[3ComB]stp config-digest-snooping 

After the above configuration, all the switches in the MSTP region can 
communicate with each other through MSTI.

H3C C

A

H3C D

GE1/1

GE1/2

E0/1

E0/2

E0/3

E1/1

E1/1

E1/1

H3C E

GE2/0/1

GE2/0/2

H3C C

H3C D

GE1/1

GE1/2

E0/1

E0/2

E0/3

E1/1

E1/1

H3C E

GE2/0/2

H3C C

A

H3C D

GE1/1

GE1/2

E0/1

E0/2

E0/3

E1/1

E1/1

H3C E

GE2/0/2

H3C C

H3C D

GE1/1

GE1/2

E0/1

E0/2

E0/3

E1/1

E1/1

H3C E

GE2/0/2

H3C B

H3C C

A

H3C D

GE1/1

GE1/2

E0/1

E0/2

E0/3

E1/1

E1/1

E1/1

H3C E

GE2/0/1

GE2/0/2

H3C C

H3C D

GE1/1

GE1/2

E0/1

E0/2

E0/3

E1/1

E1/1

H3C E

GE2/0/2

H3C C

A

H3C D

GE1/1

GE1/2

E0/1

E0/2

E0/3

E1/1

E1/1

H3C E

GE2/0/2

H3C C

H3C D

GE1/1

GE1/2

E0/1

E0/2

E0/3

E1/1

E1/1

H3C E

GE2/0/2

H3C B