Chapter
Advanced Configuration
2
24-Port 10/100 + 2-Port 10/100/1000 Gigabit Advanced Smart Switch with 2 Combo SFPs
QoS > Bandwidth
This function allows the network manager to control the
maximum rate for traffic transmitted or received on an
interface. Rate limiting is configured on interfaces at the
edge of a network to limit traffic coming out of the Switch.
Traffic that falls within the rate limit is transmitted, while
packets that exceed the acceptable amount of traffic are
dropped.
Rate limiting can be applied to individual ports or
LAGs. When an interface is configured with this feature,
the traffic rate will be monitored by the hardware to
verify conformity. Non-conforming traffic is dropped,
conforming traffic is forwarded without any changes.
QoS > Bandwidth
Port
Indicates the port for which the bandwidth settings
are displayed.
Ingress Rate
Indicates if rate limiting is enabled on the
interface.
Egress Rate
Indicates if rate limiting is enabled on the
interface.
Click
Save Settings
to save the changes.
Spanning Tree
The Spanning Tree Algorithm (STA) can be used to detect
and disable network loops, and to provide backup links
between switches, bridges or routers. This allows the
Switch to interact with other bridging devices (that is, an
STA-compliant switch, bridge or router) in your network
to ensure that only one route exists between any two
stations on the network, and provide backup links which
automatically take over when a primary link goes down.
Spanning Tree > RSTP
While the classic spanning tree prevents Layer 2 forwarding
loops in a general network topology, convergence can take
between 30-60 seconds. This time may delay detecting
possible loops, and propagating status topology changes.
Rapid Spanning Tree Protocol (RSTP detects and uses
network topologies that allow a faster STP convergence
without creating forwarding loops.
Spanning Tree > RSTP
RSTP Switch Settings
Enable RSTP
Enables Rapid Spanning Tree Protocol.
Designated Root Bridge
The bridge identifier of the root
of the spanning tree is determined by the RSTP protocol.
Priority
Displays the priority value for the root device.
User can also specify the priority value for the bridge
settings. The default value is
28
. The range is 0 to
61440.
Max Age
Displays the maximum age time for the root
device. User can also specify the maximum age time for
the bridge device. The default max age is
20 seconds
. The
range is 6 to 40 seconds.
Forward Delay
Displays the forward delay time for the
root device. User can also specify the forward delay time
for the bridge device. The Forward Delay Time indicates
the amount of time in seconds a bridge remains in a
listening and learning state before forwarding packets.
The default is
1 seconds
. The range is 4 to 30 seconds.
Click
Save Global Settings
to save the changes.
