Accton Technology ES4710BD manual Spanning-tree link-type p2p, Spanning-tree maxage

ES4710BD 10 Slots L2/L3/L4 Chassis Switch

Command mode: Global Mode

Default: The default Hello time is 2 seconds.

Usage Guide: The interval for switch to send a BPDU is referred to as Hello time. The Hello time, forward delay time, and max age time are associated. When configuring these time parameters, the following conditions must be met, otherwise the MSTP may not work properly.

2×(Bridge_Forward_Delay – 1.0 seconds) >= Bridge_Max_Age Bridge_Max_Age >= 2 ×(Bridge_Hello_Time + 1.0 seconds)

Example: Setting MSTP Hello time to 5 seconds in Global Mode. Switch(Config)#spanning-tree hello-time 5

10.2.2.9spanning-tree link-type p2p

Command: spanning-tree link-type p2p {autoforce-trueforce-false} no spanning-tree link-type

Function: Sets the link types connected to the current port; the “no spanning-treelink-type” command restores the link type to auto-detect.

Parameters: auto stands for auto-detection of link type; force-truestands for forced point-to-point; force-falsestands for forced non-point-to-point.

Command mode: Port configuration Mode

Default: MSTP auto-detects the link type connected to the port by default.

Usage Guide: When the port is operating under full-duplex mode, MSTP will assume the link connected to the port to be point-to-point type; while under half-duplex mode, MSTP assumes the link connected to be shared type

Example: Setting the link of port 1/7-8 to be forced point-to-point type. Switch(Config)#interface ethernet 1/7-8 Switch(Config-Port-Range)#spanning-tree link-type p2p force-true

10.2.2.10spanning-tree maxage

Command: spanning-tree maxage <time> no spanning-tree maxage

Function: Sets the maximum age time for the switch’s BPDU messages; the “no spanning-tree maxage” command restores the default setting.

Parameters: < time> is the max. age time in seconds , ranging from 6 to 40.

Command mode: Global Mode

Default: The default maximum age time is 20 seconds.

Usage Guide: The lifecycle for BPDU is referred to as the max age time. The max age time, forward delay time, and Hello time are associated. When configuring MSTP time parameters, the following conditions must be met, otherwise the MSTP may not work properly.

2×(Bridge_Forward_Delay – 1.0 seconds) >= Bridge_Max_Age

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