Asus GigaX2024SX - Manual (Page 13)

this protocol will choose a single path and disable all others to ensure that only
one route exists between any two stations on the network. This prevents the
creation of network loops. However, if the chosen path should fail for any reason,
an alternate path will be activated to maintain the connection.
Rapid Spanning Tree Protocol (RSTP, IEEE 802.1w) – This protocol reduces the
convergence time for network topology changes to about 10% of that required by
the older IEEE 802.1D STP standard. It is intended as a complete replacement for
STP, but can still interoperate with switches running the older standard by
automatically reconfiguring ports to STP-compliant mode if they detect STP
protocol messages from attached devices.
Virtual LANs – The switch supports up to 255 VLANs. A Virtual LAN is a
collection of network nodes that share the same collision domain regardless of
their physical location or connection point in the network. The switch supports
tagged VLANs based on the IEEE 802.1Q standard. Members of VLAN groups
can be dynamically learned via GVRP, or ports can be manually assigned to a
specific set of VLANs.
This allows the switch to restrict traffic to the VLAN groups to which a user has
been assigned. By segmenting your network into VLANs, you can:
• Eliminate broadcast storms which severely degrade performance in a flat
network.
• Simplify network management for node changes/moves by remotely configuring
VLAN membership for any port, rather than having to manually change the
network connection.
• Provide data security by restricting all traffic to the originating VLAN.
• Use private VLANs to restrict traffic to pass only between data ports and the
uplink ports, thereby isolating adjacent ports within the same VLAN, and allowing
you to limit the total number of VLANs that need to be configured.
Traffic Prioritization – This switch prioritizes each packet based on the required
level of service, using four priority queues with strict or Weighted Round Robin
Queuing. It uses IEEE 802.1p and 802.1Q tags to prioritize incoming traffic based
on input from the end-station application. These functions can be used to provide
independent priorities for delay-sensitive data and best-effort data.
This switch also supports several common methods of prioritizing layer 3/4 traffic
to meet application requirements. Traffic can be prioritized based on the priority
bits in the IP frame’s Type of Service (ToS) octet. When these services are
enabled, the priorities are mapped to a Class of Service value by the switch, and
the traffic then sent to the corresponding output queue.
Multicast Filtering – Specific multicast traffic can be assigned to its own VLAN to
ensure that it does not interfere with normal network traffic and to guarantee
real-time delivery by setting the required priority level for the designated VLAN.
The switch uses IGMP Snooping and Query to manage multicast group
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