STP Configuration
Table 21-13 Configure STP portfast
Enter global configuration mode
Enter interface configuration mode
interface ethernet interface-num
21.4.10 Configure STP Transit Limit
Restrict STP occupying bandwidth by restricting the speed of sending BPDU packet. The
speed is determined by the number of BPDU sent in each hello time.
By default, port will send 3 BPDU packets in every Hello time interval.
Table 21-14 Configure STP transit limit
Enter global configuration mode
Enter interface configuration mode
interface ethernet interface-num
Configure STP transit limit
spanning-tree transit-limit transit-limit
21.4.11 RSTP Monitor and Maintenance
After finishing above configuration, user can check the configurations by command below.
Table 21-15 RSTP monitor and maintenance
show spanning-tree interface [brief [ethernet
device/slot/port]]
On any
configuration
mode
21.5 STP Configuration Example
ï‚· Network requirements
As shown in following figure, S-switch-A is core switch as the root. S-switch-B is the bridge.
The link between S-switch-A and S-switch-B is backup link. When there is failure between
S-switch-B and S-switch-C, the link between S-switch-A and S-switch-B can work normally.
ï‚· Network diagram
Figure 21-4