Cisco 7000 Series Hardware Installation And Maintenance page 69

Preparing Network Connections
Figure
Token
around
transmit
to
When
receiving
station
changes
information
this
circulates
further processing
information
checks
original
token
While
release
wait Therefore
priority
use
to
passing
stations
by the
station
Cisco 1010 Hardware
2-18
liistallation
Token Network
2-8
Ring Physical
IEEE
Ring and
802.5
are token-passing
network
the Possession of the token
must wait
until detects
it
the ring
on
stations idle
all are
the token has no information
have
does information
that
the token
token
free
to
busy
the next station
to
until
the ring it reaches
the
and
the busy
passes
frame continues
to circle
frame
the returned ensure
to
determines
sending station
and frame and
information
information frame
the
is
circling
which
described
enabled
is is
cannot
collisions
scheme
allows the user
to
more
than
the ring frequently
token with
higher
priority
seize the token soon
to as as
token
station that generates the
and
receives the
as
it
passes
and Maintenance
Connections
which
networks
the
grants to
right
token by
free
passing
token
the labeled
is
packet
send it
to simply
passes
transmit
the token
to seizes
the information
appends
on The busy token
the ring
intended destination
station
frame back
token and information
the ring reaches
until the
it
destination
that the station
that the receiving station accepted
new
transmits token out
free
the ring there no token
is
in so other
later this section
Token Ring networks
occur
in
designate any station high priority
as
stations Stations cannot
lower-priority
own
than
its designated priority
The frame
token
possible
which
and leservation
field
token
move
small frame called
with information
transmit station
token
as If the station
free
the token the next station
free to
of the token frame
alters bit
wishes and then
to
it transmit
with the information
frame
which
the information
copies
The
out the ring
to
which
sending station
original
When
received information
the
the information
it
purges
to the
ring
network
on early token
the
unless
transmit
stations to
wishing
which
allows the
seize or reserve
which
allows
highest-priority
which
contains
field
priority
be by
can set higher-priority
03
token
which
sends
for
the
the
must
station
set
is