Nortel Contivity 1050, Configuration Manual

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Glossary 171
Nortel VPN Router Configuration — Basic Features
Routing Information Protocol (RIP)
A distance vector, as opposed to link state, routing protocol.
RSA digital signature
A public-key encryptographic system that may be used for encryption and
authentication.
server
A provider of resources, such as file servers and name servers.
Simple Network Management Protocol (SNMP)
The Internet standard protocol developed to manage nodes on an IP network.
split horizon
A method that RIP uses to avoid routing problems caused by including routes
in updates sent back to the VPN Router from which they were learned. The
simple split horizon scheme omits routes learned from one neighbor in
updates sent back to that neighbor. An extension to this method is called split
horizon with poisoned reverse. It includes the learned routes, but assigns them
a cost of infinity, which causes an update.
static routes
Routes that are manually configured in the switch's routing table.
stub network
A network that only carries packets to and from local hosts. Even if it has
paths to more than one other network, it does not carry traffic for other
networks.
subnet
A portion of a network, which may be a physically independent network
segment, that shares a network address with other portions of the network and
is distinguished by a subnet number.
Telnet
A command protocol used to establish login sessions on a remote host.
triggered update