Asus GigaX2024SX - Manual (Page 123)

Displaying Interface Settings
The STA Port Information a ages display the current
status of ports and trunks in
• panning Tree – Shows if STA has been enabled on this interface.
anning Tree:
does not forward
packets.
itch are connected to the same segment and there is no
e
t to travel from this port to the root in the
current Spanning Tree configuration. The slower the media, the higher the cost.
• Designated Bridge – The bridge priority and MAC address of the device
through which this port must communicate to reach the root of the Spanning Tree.
• Designated Port – The port priority and number of the port on the designated
bridging device through which this switch must communicate with the root of the
Spanning Tree.
• Oper Link Type – The operational point-to-point status of the LAN segment
attached to this interface. This parameter is determined by manual configuration
or by auto-detection, as described for Admin Link Type in STA Port Configuration
on page 3-139.
nd STA Trunk Information p
the Spannin Tree. g
F ld Attributes
ie
S
• STA Status – Displays current state of this port within the Sp
• Discarding - Port receives STA configuration messages, but
• Learning - Port has transmitted configuration messages for an interval set by
the Forward Delay parameter without receiving contradictory information. Port
address table is cleared, and the port begins learning addresses.
• Forwarding - Port forwards packets, and continues learning addresses.
The rules defining port status are:
- A port on a network segment with no other STA compliant bridging device is
always forwarding.
- If two ports of a sw
other
STA device attached to this segment, the port with the smaller ID forwards
packets and the other is discarding.
- All ports are discarding when the switch is booted, then some of them chang
state to learning, and then to forwarding.
• Forward Transitions – The number of times this port has transitioned from the
Learning state to the Forwarding state.
• Designated Cost – The cost for a packe
3-98