Digest Snooping Configuration Example - H3C S9500 Series Operation Manual

Operation Manual – STP
H3C S9500 Series Routing Switches

2.2.3 Digest Snooping Configuration Example

I. Network requirements
All switches in Figure 2-1 are MSTP-enabled and have the same region configuration.
All the switches except that A are of Hangzhou H3C Technologies Co., Ltd.
II. Network diagram
H3C B H3C B
E1/1 E1/1
H3C C H3C C H3C C H3C C H3C C H3C C H3C C H3C C
Figure 2-1 Network diagram for digest snooping configuration
III. Configuration procedure
# H3C 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:
<H3C>system-view
System View: return to User View with Ctrl+Z.
[H3CB]interface GigabitEthernet1/1
[H3CB-GigabitEthernet1/1]stp config-digest-snooping
[H3CB-GigabitEthernet1/1] quit
[H3CB]interface GigabitEthernet1/2
[H3CB-GigabitEthernet1/2]stp config-digest-snooping
# Finally, you need to enable digest snooping globally on H3C B.
[H3CB]stp config-digest-snooping
After the above configuration, all the switches in the MSTP region can communicate
with each other through MSTI.
A A A A
GE2/0/2 GE2/0/2 GE2/0/2 GE2/0/2 GE2/0/2 GE2/0/2 GE2/0/2 GE2/0/2
GE2/0/1 GE2/0/1
GE1/1 GE1/1 GE1/1 GE1/1 GE1/1 GE1/1 GE1/1 GE1/1
GE1/2 GE1/2 GE1/2 GE1/2 GE1/2 GE1/2 GE1/2 GE1/2
E0/3 E0/3 E0/3 E0/3 E0/3 E0/3 E0/3 E0/3
E0/1 E0/1 E0/1 E0/1 E0/1 E0/1 E0/1 E0/1
E0/2 E0/2 E0/2 E0/2 E0/2 E0/2 E0/2 E0/2
E1/1 E1/1 E1/1 E1/1 E1/1 E1/1 E1/1 E1/1
E1/1 E1/1 E1/1 E1/1 E1/1 E1/1 E1/1 E1/1
H3C D H3C D H3C D H3C D H3C D H3C D H3C D H3C D
Chapter 2 Digest Snooping Configuration
H3C E H3C E H3C E H3C E H3C E H3C E H3C E H3C E
2-3