Glossary
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NS3552-8P-2S-V2 User Manual
There are three web pages associated with the manual ACL
configuration:
Access Control List (ACL)
: The web page shows the ACEs in
a prioritized way, highest (top) to lowest (bottom). The table is
empty by default. An ingress frame will only get a hit on one
ACE even though there are more matching ACEs. The first
matching ACE will take action (permit/deny) on that frame and a
counter associated with that ACE is incremented. An ACE can
be associated with a policy, one ingress port, or any ingress
port (the whole switch). If an ACE policy is created then that
policy can be associated with a group of ports under the "Ports"
web page. There are number of parameters that can be
configured with an ACE. Read the web page help text to obtain
further information for each of them. The maximum number of
ACEs is 64.
ACL Port Configuration
: The ACL ports configuration is used
to assign a Policy ID to an ingress port. This is useful to group
ports to obey the same traffic rules. Traffic policy is created
under the "Access Control List" page. You can you also set up
specific traffic properties (Action / Rate Limiter / Port copy, etc.)
for each ingress port. They will only apply if the frame gets past
the ACE matching without getting matched, however. In that
case a counter associated with that port is incremented. See the
web page help text for each specific port property.
ACL Rate Limiters
: This page can be used to configure the
rate limiters. There can be 15 different rate limiters, each
ranging from 1-1024K packets per second. The "Ports" and
"Access Control List" web pages can be used to assign a Rate
Limiter ID to the ACE(s) or ingress port(s).
AES
Advanced Encryption Standard. The encryption key protocol is
applied in 802.1i standard to improve WLAN security. It is an
encryption standard by the U.S. government, which will replace
DES and 3DES. AES has a fixed block size of 128 bits and a
key size of 128, 192, or 256 bits.
AMS
Auto Media Select. AMS is used for dual media ports (ports
supporting both copper (CU) and fiber (SFP) cables. AMS
automatically determines if a SFP or a CU cable is inserted and
switches to the corresponding media. If both SFP and CU
cables are inserted, the port will select the prefered media.
APS
Automatic Protection Switching. This protocol is used to secure
that switching is done bidirectionally in the two ends of a
protection group, as defined in G.8031
Aggregation
Using multiple ports in parallel to increase the link speed
beyond the limits of a port and to increase the redundancy for
higher availability.
ARP
Address Resolution Protocol. It is a protocol used to convert an
IP address into a physical address, such as an Ethernet
address. ARP allows a host to communicate with other hosts
when only the Internet address of its neighbors is known. Before
using IP, the host sends a broadcast ARP request containing
the Internet address of the desired destination system.
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 ...
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