Switch User's Manual

28 D
Distributed MultiLink Trunking (DMLT)
A point-to-point connection that aggregates
similar ports from different modules to logically
act like a single port, but with the aggregated
bandwidth.
distribution tree
A set of multicast routers and subnetworks that
allow the group members to receive traffic from a
source.
Domain Name System (DNS)
A system that maps and converts domain and
host names to IP addresses.
downstream node
Refers to the node that the packet enters on the
downstream node.
downstream-on-demand (DoD)
A label switch router (LSR) distributes a forward
equivalence class (FEC) label binding in
response to an explicit request from another
LSR. The Nortel Ethernet Routing Switch 8600
does not support downstream-on-demand.
downstream unsolicited (DU)
An LSR distributes label bindings to LSRs that
do not explicitly request them.
dual inline memory module (DIMM)
A module that contains one or several random
access memory (RAM) chips on a small circuit
board with pins that connect it to the computer
motherboard.
Duplicate Address Detection (DAD)
A method used to discover duplicate addresses
in an IPv6 network.
Dynamic Host Configuration Protocol (DHCP)
A standard Internet protocol that dynamically
configures hosts on an Internet Protocol (IP)
network. DHCP extends the Bootstrap Protocol
(BOOTP).
Nortel Ethernet Routing Switch 8600
Terminology
NN46205-102 01.01 Standard
30 May 2008
Copyright © 2008 Nortel Networks
.