566
G8332 Command Reference for ENOS 8.4
neighbor
group
<1
‐
8>
time
to
live
<number
of
router
hops
(1
‐
255)>
Time
‐
to
‐
live
(TTL)
is
a
value
in
an
IP
packet
that
tells
a
network
router
whether
or
not
the
packet
has
been
in
the
network
too
long
and
must
be
discarded.
TTL
specifies
a
certain
time
span
in
seconds
that,
when
exhausted,
would
cause
the
packet
to
be
discarded.
The
TTL
is
determined
by
the
number
of
router
hops
the
packet
is
allowed
before
it
must
be
discarded.
This
command
specifies
the
number
of
router
hops
that
the
IP
packet
can
make.
This
value
is
used
to
restrict
the
number
of
“hops”
the
advertisement
makes.
It
is
also
used
to
support
multi
‐
hops,
which
allow
BGP
peering
groups
to
talk
across
a
routed
network.
The
default
number
is
set
at
1
.
Note:
The
TTL
value
is
significant
only
to
eBGP
peering
groups;
for
iBGP
peering
groups
the
TTL
value
in
the
IP
packets
is
always
255
(regardless
of
the
configured
value).
Command
mode:
Router
BGP
no
neighbor
group
<1
‐
8>
time
to
live
<1
‐
255>
Disables
the
TTL
feature.
Command
mode:
Router
BGP
neighbor
group
<1
‐
8>
timers
hold
time
<hold
time
(0,
3
‐
65535)>
Sets
the
period
of
time,
in
seconds,
that
will
elapse
before
the
peering
group
session
is
torn
down
because
the
switch
hasn’t
received
a
“keep
alive”
message
from
the
peer.
The
default
value
is
180
seconds.
Command
mode:
Router
BGP
neighbor
group
<1
‐
8>
timers
keep
alive
<keepalive
time
(0
‐
21845)>
Sets
the
keep
‐
alive
time
for
the
specified
peering
group
in
seconds.
The
default
value
is
60
seconds.
Command
mode:
Router
BGP
neighbor
group
<1
‐
8>
ttl
security
hops
<1
‐
254>
Sets
the
minimum
number
of
time
‐
to
‐
live
(TTL)
router
hops
an
IP
packet
must
have
to
not
be
discarded.
Command
mode:
Router
BGP
no
neighbor
group
<1
‐
8>
ttl
security
hops
Disables
the
TTL
security
feature.
Command
mode:
Router
BGP
neighbor
group
<1
‐
8>
update
source
{
<interface
number
(1
‐
126)>
|
|loopback
<interface
number
(1
‐
5)>
}
Sets
the
local
IP
interface
or
loopback
interface
for
this
peering
group.
Command
mode:
Router
BGP
Table 300.
BGP
Peering
Group
Configuration
Options
(continued)
Command Syntax and Usage
Содержание RackSwitch G8332
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