Avaya P580 - Manual (Page 508)

15-2 Avaya P550R, P580, P880, and P882 Multiservice Switch User Guide, v5.3.1
Chapter
The supported Ethernet versions are:
■
Ethernet SNAP
■
Ethernet II
The Avaya P550R/P580/P880/P882 Multiservice switch supports 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.