Chapter 4: Web configuration
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NS3552-8P-2S-V2 User Manual
Object
Description
between 128 to 255 octets in length.
256~511
The total number of packets (including bad packets) received that were
between 256 to 511 octets in length.
512~1023
The total number of packets (including bad packets) received that were
between 512 to 1023 octets in length.
1024~1588
The total number of packets (including bad packets) received that were
between 1024 to 1588 octets in length.
Buttons
• Click
Refresh
to refresh the page immediately.
• Click the
Auto-refresh
check box to refresh the page automatically. Automatic
refresh occurs every three seconds.
• Click
I<<
to update the table starting from the first entry in the alarm table (i.e., the
entry with the lowest ID).
• Click
>>
to update the table starting with the entry after the last entry currently
displayed.
Ring
ITU-T G.8032 Ethernet Ring Protection Switching (ERPS) is a link layer protocol
applied on Ethernet loop protection to provide sub-50 ms protection and recovery
switching for Ethernet traffic in a ring topology.
ERPS provides a faster redundant recovery than Spanning Tree topology. The action is
similar to STP or RSTP, but the algorithms between them are not the same. In the ring
topology, every switch should be enabled with the ring function and two ports should be
assigned as the member ports in the ERPS. Only one switch in the ring group would be
set as the RPL owner switch in which one port (the owner port) would be blocked, and
the PRL neighbour switch has one port (the neighbor port) that would be blocked. The
neighbor port is connected to the owner port directly and this link is called the Ring
Protection Link (RPL). Each switch sends an ETH-CCM message to check the link
status in the ring group. When the failure of a network connection occurs, the nodes
block the failed link and report the signal failure message. The RPL owner switch will
automatically unblock the PRL to recover from the failure.
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: ......