Cisco Nexus 7000 Series Configuration Manual page 517

S e n d d o c u m e n t c o m m e n t s t o n e x u s 7 k - d o c f e e d b a c k @ c i s c o . c o m .
M
A one-way hash applied to a message using a shared password and appended to the message to
message digest
authenticate the message and ensure the message has not been altered in transit.
A standard of measurement, such as the path bandwidth, that is used by routing algorithms to determine
metric
the optimal path to a destination.
A cryptographic construction that is calculated based on an authentication key and the original message
MD5 authentication
and sent along with the message to the destination. Allows the destination to determine the authenticity
digest
of the sender and guarantees that the message has not been tampered with during transmission.
Maximum transmission unit. The largest packet size that a network link will transmit without
MTU
fragmentation.
N
Neighbor Discovery Protocol. The protocol used by IPv6 to find the MAC address associated with an
NDP
IPv6 address.
BGP network layer reachability information (NRLI). Contains the a list of network IP addresses and
network layer
reachability network masks for networks that are reachable from the advertising BGP peer.
information
The next router that a packet is sent to on its way to the destination address.
next hop
Not-So-Stubby-Area. Limits AS external LSAs in an OSPF area.
NSSA
O
Open Shortest Path First. An IETF link-state protocol. OSPFv2 supports IPv4 and OSPFv3 supports
OSPF
IPv6.
P
Sum of all link costs or the hop count that a packet experiences when routed from the source to the
path length
destination.
The method of using route maps to alter the route selected for a packet.
policy-based
routing
OL-20002-02
Cisco Nexus 7000 Series NX-OS Unicast Routing Configuration Guide, Release 4.x
Glossary
GL-5