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Chapter 4: Web configuration
The page includes the following fields:
Object
Counter Mode Selection
Buttons
•
Click
Refresh
to refresh the page.
•
Click
Clear
to clear statistics.
VLAN
VLAN overview
A Virtual Local Area Network (VLAN) is a network topology configured according to a
logical scheme rather than the physical layout. VLAN can be used to combine any
collection of LAN segments into an autonomous user group that appears as a single
LAN. VLAN also logically segments the network into different broadcast domains so
that packets are forwarded only between ports within the VLAN. Typically, a VLAN
corresponds to a particular subnet, although not necessarily. VLAN can enhance
performance by conserving bandwidth, and improve security by limiting traffic to
specific domains.
A VLAN is a collection of end nodes grouped by logic instead of physical location. End
nodes that frequently communicate with each other are assigned to the same VLAN,
regardless of where they are physically on the network. Logically, a VLAN can be
equated to a broadcast domain, because broadcast packets are forwarded only to
members of the VLAN on which the broadcast was initiated.
Port-based VLAN
Port-based VLAN limits traffic that flows into and out of switch ports. Thus, all devices
connected to a port are members of the VLAN(s) the port belongs to, whether there is a
single computer directly connected to a switch, or an entire department.
44
Description
Configure the counter mode using this drop-down list.
Options:
Transmit Packet & Receive Packet
The total number of octets transmitted / received out of the interface,
including framing characters.
Collision Count & Transmit Packet
The best estimate of the total number of collisions on this Ethernet
segment.
Drop packet & Receive Packet
The total number of events in which packets were dropped due to
lack of resources.
CRC error packet & Receive Packet
The number of CRC/alignment errors (FCS or alignment errors).
ES2402-24P-2C / ES2402-16P-2C / ES2402-8P-2C User Manual
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