© Copyright Lenovo 2016
Chapter 2: Information Commands
79
The
following
port
‐
specific
CIST
information
is
also
displayed:
FwdDel
The
forward
delay
parameter
specifies,
in
seconds,
the
amount
of
time
that
a
bridge
port
has
to
wait
before
it
changes
from
discarding
state
to
learning
state
and
from
learning
state
to
forwarding
state.
Hops
The
maximum
number
of
bridge
hops
a
packet
can
traverse
before
it
is
dropped.
The
default
value
is
20
.
Table 35.
CIST
Parameter
Descriptions
Parameter
Description
Prio
(port)
The
port
priority
parameter
helps
determine
which
bridge
port
becomes
the
designated
port.
In
a
network
topology
that
has
multiple
bridge
ports
connected
to
a
single
segment,
the
port
with
the
lowest
port
priority
becomes
the
designated
port
for
the
segment.
Cost
The
port
path
cost
parameter
is
used
to
help
determine
the
designated
port
for
a
segment.
Generally
speaking,
the
faster
the
port,
the
lower
the
path
cost.
A
setting
of
0
indicates
that
the
cost
will
be
set
to
the
appropriate
default
after
the
link
speed
has
been
auto
negotiated.
State
The
state
field
shows
the
current
state
of
the
port.
The
state
field
can
be
either
Discarding
(
DISC
),
Learning
(
LRN
)
or
Forwarding
(
FWD
).
Role
The
Role
field
shows
the
current
role
of
this
port
in
the
Spanning
Tree.
The
port
role
can
be
one
of
the
following:
Designated
(
DESG
),
Root
(
ROOT
),
Alternate
(
ALTN
),
Backup
(
BKUP
),
Disabled
(
DSB
)
or
Master
(
MAST
).
Designated
Bridge
The
Designated
Bridge
shows
information
about
the
bridge
connected
to
each
port,
if
applicable.
Information
includes
the
priority
(in
hexadecimal
notation)
and
MAC
address
of
the
Designated
Bridge.
Designated
Port
The
port
ID
of
the
port
on
the
Designated
Bridge
to
which
this
port
is
connected.
Type
Type
of
link
connected
to
the
port,
and
whether
the
port
is
an
edge
port.
Link
type
values
are
AUTO
,
P2P
or
SHARED
.
Table 34.
CIST
Parameter
Descriptions
(continued)
Parameter
Description
Summary of Contents for RackSwitch G8332
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