Chapter 4: Web configuration
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NS3552-8P-2S-V2 User Manual
The page includes the following fields:
Object
Description
Port
The switch port number.
LACP Received
Shows how many LACP frames have been sent from each port.
LACP Transmitted
Shows how many LACP frames have been received at each port.
Discarded
Shows how many unknown or illegal LACP frames have been
discarded at each port.
Buttons
• Click
Refresh
to to refresh the page immediately.
• Click
Clear
to clear the counters for all ports
• Select the
Auto-refresh
check box to automatically refresh the page every three
seconds.
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 segment 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.
Note:
1. Regardless of the method used to uniquely identify end nodes and assign VLAN
membership to these nodes, packets cannot cross VLAN without a network device
performing a routing function between the VLANs.
2. The industrial managed switch supports IEEE 802.1Q VLAN. The port untagging
function can be used to remove the 802.1 tag from packet headers to maintain
compatibility with devices that are tag-unaware.
Summary of Contents for NS3552-8P-2S-V2
Page 1: ...NS3552 8P 2S V2 User Manual P N 1073552 EN REV B ISS 25JAN19 ...
Page 41: ...Chapter 3 Switch management NS3552 8P 2S V2 User Manual 39 ...
Page 73: ...Chapter 4 Web configuration NS3552 8P 2S V2 User Manual 71 ...
Page 147: ...Chapter 4 Web configuration NS3552 8P 2S V2 User Manual 145 ...
Page 511: ......
