Appendix C:
Glossary
NGSME24G4S User Manual | 372
Appendix C: Glossary
This appendix contains the terms and glossaries that are used in this user manual.
A
ACE
ACE is an acronym for
A
ccess
C
ontrol
E
ntry. It describes access permission associated with
a particular ACE ID.
There are three ACE frame types (Ethernet Type, ARP, and IPv4) and two ACE actions
(permit and deny). The ACE also contains many detailed, different parameter options that are
available for individual application.
ACL
ACL is an acronym for
A
ccess
C
ontrol
L
ist. It is the list table of ACEs, containing access
control entries that specify individual users or groups permitted or denied to specific traffic
objects, such as a process or a program.
Each accessible traffic object contains an identifier to its ACL. The privileges determine
whether there are specific traffic object access rights.
ACL implementations can be quite complex, for example, when the ACEs are prioritized for
the various situation. In networking, the ACL refers to a list of service ports or network
services that are available on a host or server, each with a list of hosts or servers permitted or
denied to use the service. ACL can generally be configured to control inbound traffic, and in
this context, they are similar to firewalls.
There are 3 web-pages associated with the manual ACL configuration:
ACL|Access Control List
: The web page shows the ACEs in a prioritized way, highest (top)
to lowest (bottom). Default the table is empty. 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, 1 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 get further information for each of them. The maximum
number of ACEs is 64.
