Spanning Tree detected over the network ?
At the above tests I did use my
ASUS GX1105B, that is a 5 ports unmanaged switch ( technology of 15/4/2008).
GX1105B documentation does not mention
IEEE 802.1d = Spanning Tree = Spanning Tree Protocol =
STP And as such, the INTEL switch diagnostic software, this offered to me one undocumented information.
••• GX1105B : 5x 10/100/1000 Mbps RJ-45 ports ( Switching performance 10Gps)
• Supports Auto-Negotiation for 10/100/1000Mbps
• Supports Auto-MDIX for each port
• Support Full/Half duplex transfer mode for 10 and 100Mbps
• Support Full duplex transfer mode for 1000Mbps
• Full wire speed reception and transmission
• Supports jumbo frame up to 9.6KB
• 4K entry MAC address table with auto-learning and aging function
• IEEE 802.3x flow control for full-duplex
• Back pressure flow control for half-duplex
•
Support VIP port: High performance priority port for gaming and fast data connections. (Port 1)
• Smart Power Saving: Idle ports automatically power down when not in use to conserve power.
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STP this is ancient technology which filtering switch traffic due software layer algorithm.
In 2001, the IEEE introduced
Rapid Spanning Tree Protocol (
RSTP) as
802.1w.
RSTP provides significantly faster recovery in response to network changes or failures, introducing new convergence behaviors and bridge port roles to do this.
RSTP was designed to be backwards-compatible with standard STP.
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In conclusion about this GX1105B switch, due the fact that it support VIP port, there is a minimal support of
Rapid Spanning-Tree in it.
It is well know that layer-2 bridges (managed switch) this is the real thing to use, for a proper support of all protocols.