Mac Table - ZyXEL Communications MGS3600-24F User Manual

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MAC Table

The MAC Table is a table of ports and source MAC addresses that is initially empty. It is often implemented as Content Addressable Memory
(CAM). When the first frame arrives on a port, the port number and source MAC address is added to the MAC Table. When a new frame arrives, its
destination MAC address is looked up in the MAC Table to find the destination port to send the frame to. After a preconfigured time, entries time-
out and are removed from the MAC Table. This is dynamic updating, but the MAC Table can also be updated manually using static entries that are
never removed.
MEP
MEP is an acronym for Maintenance Entity Endpoint and is an endpoint in a Maintenance Entity Group (ITU-T Y.1731).
MD5
MD5 is an acronym for Message-Digest algorithm 5. MD5 is a message digest algorithm, used cryptographic hash function with a 128-bit hash
value. It was designed by Ron Rivest in 1991. MD5 is officially defined in RFC 1321 - The MD5 Message-Digest Algorithm.
Mirroring
For debugging network problems or monitoring network traffic, the switch system can be configured to mirror frames from multiple ports to a mirror
port. (In this context, mirroring a frame is the same as copying the frame.)
Both incoming (source) and outgoing (destination) frames can be mirrored to the mirror port.
MLD
MLD is an acronym for Multicast Listener Discovery for IPv6. MLD is used by IPv6 routers to discover multicast listeners on a directly attached link,
much as IGMP is used in IPv4. The protocol is embedded in ICMPv6 instead of using a separate protocol.
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