Bridge Protocol Data Unit Configuration; Hello Time - Siemens S223 User Manual

UMN:CLI
8.3.9
i
8.3.9.1
220
To clear configured Restarting Protocol Migration, use the following command.
Command
stp clear-detected-protocol
PORTS

Bridge Protocol Data Unit Configuration

Bridge Protocol Data Unit (BPDU) is a transmission message in LAN in order to configure,
maintain the configuration for STP/RSTP/MSTP. Switches that STP is configured ex-
change their information BPDU to find best path. MSTP BPDU is general STP BPDU hav-
ing additional MST data on it's end. MSTP part of BPDU does not rest when it is out of
Region.
•

Hello Time

Hello time decides an interval time when a switch transmits BPDU. It can be config-
ured from 1 to 10 seconds. The default is 2 seconds.
•
Max Age
Root switch transmits new information every time based on information from another
switches. However, if there are many switches on network, it takes lots of time to
transmit BPDU. And if network status is changed while transmitting BPDU, this in
formation is useless. To get rid of useless information, max age is identified in each
information.
•
Forward Delay
Switches find location of another switches connected to LAN though received BPDU
and transmit packets. Since it takes certain time to receive BPDU and find the loca-
tion before transmitting packet, switches send packet at regular interval. This interval
time is named forward delay.
The configuration for BPDU is applied as selected in force-version. The same commands
are used for STP, RSTP, MSTP, PVSTP and PVRSTP.
Hello Time
Hello time decides an interval time when a switch transmits BPDU. To configure hello
time, use the following command.
Command
stp mst hello-time <1-10>
stp pvst hello-time
VLAN-RANGE <1-10>
SURPASS hiD 6615 S223/S323 R1.5
Mode
Bridge Configures restarting protocol migration function.
Mode
Configures hello time to transmit the message in STP,
RSTP and MSTP:
1-10: set the hello time. (default: 2)
Bridge
Configures hello time to transmit the message in
PVSTP and PVRSTP:
1-10: set the hello time. (default: 2)
User Manual
Description
Description
A50010-Y3-C150-2-7619