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Operation Manual CLI
22.5.3
Max Age
Max age shows how long path message is valid. To configure max age to delete useless
messages, use the following command.
Command
Mode
stp mst max-age <6–40>
Bridge
no stp mst max-age
Function
Configures max age of route message in STP, RSTP or MSTP.
6 - 40: max age time value (default: 20 sec.)
Releases max age of configured route message.
g It is recommended that max age is configured less than twice of forward delay and
more than twice of hello time.
22.5.4
BPDU Hop
In MSTP, it is possible to configure the number of hop in order to prevent BPDU from
wandering. BPDU passes the switches as the number of hop by this function. To configure the number of hop of BPDU in MSTP, use the following command.
Command
stp mst max-hops <1-40>
Mode
Bridge
no stp mst max-hops
Function
Configures the number of hop for BPDU
1 - 40: set the number of possible hops in the region.
Deletes the number of hop for BPDU in MSTP.
22.5.5
Checking the BPDU Configuration
To check the configuration for BPDU, use the following command.
Command
show stp mst
Mode
Privileged/
Config/
Bridge
22.6
Function
Shows the configuration for BPDU.
Self Loop Detection
Although there is no double path in user’s equipment, loop can be caused by network
environment and cable condition connected to equipment. To prevent this, the hiX 5750
R2.0 has a self loop detection to perceive that an outgoing packet is got back. Through
the self loop detection, it is possible to prevent packet, which comes back because it
blocks the port. To enable/disable self loop detection, use the following command.
Command
stp self-loop-detect { enable I disable }
Mode
Bridge
Function
Enables/disables self loop detection function.
Use the following commands for detection of loops or to check the ports where a loop
occurred.
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