Siemens S223 - Manual (Page 223)

User Manual UMN:CLI
SURPASS hiD 6615 S223/S323 R1.5
A50010-Y3-C150-2-7619 223
To configure BPDU guard in the switch, perform the following procedure.
Step 1
Configure the specific port as edge-port.
Command Mode Description
stp edge-port PORTS Configures the port as Edge port.
no stp edge-port PORTS
Bridge
Disables Edge port configuration.
Step 2
Configure BPDU Guard.
Command Mode Description
stp bpdu-guard Configures BPDU Guard function on switch.
no stp bpdu-guard
Bridge
Disables BPDU Guard function.
However, BPDU Guard can be corrupted by unexpected cause. In this case, the edge
port is blocked immediately and remains at this state until user recovers it. To prevent this
problem, the hiD 6615 S223/S323 switch provides BPDU guard auto-recovery function.
When an edge port is down for BPDU packet which came from other switch, the port is
recovered automatically after configured time.
To configure BPDU Guard auto-recovery, use the following command.
Command Mode Description
stp bpdu-guard auto-recovery Configures BPDU Guard auto-recovery on switch.
stp bpdu-guard auto-recovery-
time <10-1000000>
Configures BPDU Guard auto-recovery-time.
no stp bpdu-guard auto-
recovery
no stp bpdu-guard auto-
recovery-time
Bridge
Disables BPDU Guard auto-recovery function.
To recover a blocked port by manually, use the following command.
Command Mode Description
stp bpdu-guard err-recovery
PORTS
Bridge Recovers a blocked port by manually.
8.3.9.7 Self Loop Detection
Although there is no double path in user’s equipment, loop can be caused by network en-
vironment and cable condition connected to equipment. To prevent this, the hiD 6615
S223/S323 has self loop detection to perceive that outgoing packet is got back. Through
the self loop detection, you can prevent packet, which comes back because it blocks the
port.