Avaya Cajun P580, User Manual, Page: 532 / 770

19-2 User Guide for the Avaya P580 and P882 Multiservice Switches, v6.0
Chapter 19
The supported Ethernet versions are:
■
Ethernet SNAP
■
Ethernet II
The Avaya P580 and P882 Multiservice switches support the following
AppleTalk protocols:
■
AppleTalk Address Resolution Protocol (AARP)
This is an AppleTalk support protocol that maps the hardware
address of an AppleTalk node to an Appletalk protocol address.
■
Routing Table Maintenance Protocol (RTMP)
This protocol maintains information about AppleTalk addresses and
connections between different networks. Specially, it tells each
router to:
—
Learn a new route to other routers
—
Delete a route if the local router has not broadcast that route to
the network for a certain period of time.
■
Name-Binding Protocol (NBP)
This protocol translates alphanumeric entity names to AppleTalk
addresses. NBP maintains a table of node addresses and entities
within each node. Because each node also maintains it own list of
named entities, the name directory within an AppleTalk network is
not centralized. The names directory database is distributed among
all nodes on the intranetwork.
■
Datagram Delivery Protocol (DDP)
This protocol transfers data in packets called datagrams.
■
AppleTalk Echo Protocol (AEP)
This protocol is used to send datagrams to other nodes in the
network. The transmitted AEP datagram causes the destination node
to return, or echo, that datagram to the sending node. This protocol
determines whether a node is accessible before any sessions are
started, and it enables users to estimate the round-trip delay time
between nodes.