September 2002
Intermediate to advanced
560 pages
13h 16m
English
book
VRRP: Increasing Reliability and Failover with the Virtual Router Redundance Protocol
by Ayikudy Srikanth, Adnan Adam Onart
Content preview from VRRP: Increasing Reliability and Failover with the Virtual Router Redundance Protocol
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E.4. Concepts
This section offers formal definitions for some basic concepts related to the protocol.
Router
For our purposes, we characterize a router by the IP addresses of its interfaces and the routing relevant protocols its supports. In this specific sense, we define a router as an ordered pair consisting of the set of IP addresses and supported protocols:
< {ip1, ip2, ..., ipn}, {p1, p2, ..., pn}>.
We refer to the set of IP addresses associated with the interfaces of a router as its iset and the supported protocols as its pset. We represent the iset and pset of a router r as
iset(r)
and
pset(r).
Virtual Router
We define a virtual router as a tuple (or as an ordered set) consisting of
authentication information
advertisement interval
preemption ...
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