User's Guide Hub/Switch 2E253, 2H252, 2H253, 2H258

Built-in Commands
11- 20 Network Tools Screens
passiveStp
Description: Enables, disables, or displays the status of Passive Mode Spanning Tree on the
device.
Passive Mode Spanning tree allows ports on leaf bridges to transition very
quickly and not invoke a global network re-span through requesting root
elections by:
• Not allowing switches to become the root node;
• Not allowing switches to send configuration BPDUs;
• Expiring the message age timer when a link transitions to a down state;
• Moving the 802.1D Blocked state directly to forwarding; and
• Using a default or locally defined Passive STP Max Age time.
Syntax: passiveStp [ enable | disable | status ]
Options: enable – Enables PassiveStp on this device.
disable – Disables PassiveStp on this device.
status – Indicates the current status of Passive STP.
Examples:
->PassiveStp disable
Disabled
->PassiveStp status
Passive is disabled
Passive Maxage = 2000
ping
Description: Generates an outbound ping request to check the status (alive/not alive) of a
device at a specified IP address.
Syntax: ping [IP address]
Options: IP address — Specifies the IP address to ping.
Example:
-> ping 122.144.40.10
122.144.40.10 is alive