Symmetricom SyncServer S100 User Manual page 39

jitter: Ji Jitt tter er (al jitter:
pon ponent
stability: stability: Sta
ti time me. . It It is is us usua uall lly y af affe fect cted ed by by ag agin ing, g, en envi viron
parts ts pe per r mi mill llio ion n (pp par
broadcastdelay: Th broadcastdelay:
mi mine ne the
mati tica call lly y by by the ma
or or mu
the the Sync
authdelay: When authdelay:
th this is ad adds ds a a tr triv ivia ial l am
This is va valu lue e is is al alway Th
RESTART Button RESTART Button
After After changi
in into to ef effec
genera gen
NTP NTP Le Leap ap Cha
NTP - Assoc NTP - Assoc
Use Use th this is pa page ge to to vi view
Also see Also
NTP Associations NTP Associations
NTP NTP as asso soci ciat atio ions ns wit
go good od do doma
config figurati con
Remote: Remote:
ware e Cl Cloc ock" k" is is th the e Sy war
th this is wi will ll be be th the e IP IP ad addr dres ess s of of th the e re remo
The ch chara The
n n
n n
n n
n n
n n
n n
Local: Local:
For r th the e Har Fo
(also so ca call lled ed ti timi ming ng ji jitt tter)
ents s gre great ater er th than an 10 10 Hz. Hz.
Stabi bili lity ty ref refers ers to to ho how w wel
(ppm). m).
The e bro broadc adcas ast t an and d mu
the net network work de dela lay y bet betwee ween n th the e lo loca cal l an and d rem
the in init itia ial l pro proto toco col l ex exch chang
mult ltic icas ast t de dela lay y re repo port rted ed by by th the e NTP
SyncServe Server. r.
When NTP NTP au authe thent ntic icat atio ion n is is ena
amou ount nt of of fi fix x ed ed de dela lay y th that at ca can n be be re remo
ways s se set t to to ze zero ro on on th the e Sy
changing ng the the NTP NTP confi configuration
fect. t. Whi While le th the e NTP NTP dae daemo
erate tes s th the e fo foll llowi owing ng al alarm arm ev event
Change nge. .
ew th the e st stat atus us of of NTP
see
NTP Associations NTP Associations
with h no non-v n-val alid id IP IP ad addre
main in na name me do does es no not t ap appe pear ar on on th this is li list st, , th ther ere e ma
uration on on on the the
NETWORK - NETWO
The The do doma main in na name me or or IP IP ad addr dres ess s of of th the e re remo
Sync ncSe Serv rver er's 's Har
aract cter er in in th the e le left ft ma margi rgin n in indi dica cate tes s the
* (a * (ast steri erisk sk) ) the the as asso soci ciat atio ion n wit
on on ), ), marked marked "sy
NTP - Sysinfo NTP - Sys info
+ + (plu (plus) s) ind indic icates ates the the Sync SyncServe
- - (mi (minu nus) s) in indi dica cate tes s th the e Syn SyncSe
= = (eq (equal ual) ) me means ans th the e Syn SyncSe
^ ^ (ca (caret ret) ) in indi dica cate tes s th that at the the Syn
casting cast ing to". to".
~ ~ (ti (tild lde) e) de denot notes es tha that t th the e rem
The e IP IP ad addr dres ess s of of th the e Sy Th
Hardwa dware re Cl Cloc ock k it it is is "1 "127 27.0 .0.0 .0.1 .1", ", th the e IP IP ad addr dres ess s of of th the e lo loop opba bac c k k po port rt. .
99 997-0 7-0152 1520-0 0-03 3 Rev Rev. . A A ..........................................................................
er) ref refers ers to to sh short ort-te -term
well l th the e Syn SyncSe cServ rver er ca can n ma
ronme ment nt ch chan anges
mult ltic icas ast t mo mode des s req
remote ote se serve
anges es bet betwee ween n th the e cl clie ient nt an and d se serve
NTP da daem emon on. . Th The e va valu lue e is is al alway
enabl bled ed an and d pe perfo
Sync ncSer Serve ver. r.
guration, , clic click k the the
RESTART RESTART
mon n res resta tarts rts, , it its s se serv rvic ices es are
ents: s: NTP NTP Stra Stratu tum m Cha Change
NTP as asso soci ciati ations ons li list sted ed on on th the e
(o (on n pa page ge 12 129) 9) in in th the e Gl Glos oss s ar ary. y.
dress sses es and and dom domai ain n na name
pa page ge, , or or wi with th th the e DNS
RK - Ethernet Ethernet
mote te en end d of of th the e NTP
Hardwa dware re Cl Cloc ock. k. In In th the e ca case se of of a a re remo
mote te en end. d.
the mo mode de in in whi
with h whi which ch th the e NTP NTP dae daemo
"synchroni nchronizing zing". ".
Server r is is
symmetric sym metric acti active
cServ rver er is is
symmetric symmetric passiv passive e
cServe rver r is is in in mod mode, e, mark
client client
SyncSe cServ rver er is is bro broadc adcas asti ting ng to to th the e rem
remot ote e no node de is is bro broadc adcas asti ting ng to to th the e Syn
Sync ncSe Serv rver er ne netwo twork rk po port rt at at th the e lo loc c al al en end d of of th the e NTP
..........................................................................
rm va varia riati tions ons in in fre freque quenc ncy y wit
main inta tain in a a co cons nstan tant t fre
ges, , et etc. c. The The va valu lue e is is ex expre press ssed ed uni
requi uire re a a sp spec ecia ial l ca cali libra brati tion on to to det
rvers rs. . Ty Typi pica call lly, y, th this is is is do done ne au auto-
rver. r. Thi This s is is th the e bro
ways s se set t to to 0. 0.00 004 4 se seco cond nds s on on
rforme rmed d on on out outgo goin ing g NTP
move ved d ba base sed d on on th the e au auth thde dela lay y va valu lue. e.
button on to to put butt put the the new new con
are te temp mpora oraril rily y un unav avai aila labl ble, e, and
nge, , NTP NTP Sys Syste tem m Pee Peer r Cha
page. page.
NTP - Config NTP - Config
mes s are are no not t sh shown own. . (If (If a a kn known
may y be be a a pr prob oble lem m wit with h th the e DNS
DNS se serv rvic ice e it itse self lf.) .)
NTP as asso soci ciat atio ion. n. "Ha
mote te NTP NTP co conn nnec ecti tion on, ,
which ch thi this s pe peer er ent entry ry is is op opera
mon n is is sy sync nchro hroni nizi zing ng (th (the e
mode. mode.
ve
mode. mode.
marked ed "be "being ing pol polled" led". .
remote ote nod node, e, ma
SyncSe cServe rver. r.
NTP as asso soci ciat atio ion. n.
Page ge 27 27 Pa
NTP P - - As NT Ass s oc oc
with h co com- m-
freque quenc ncy y ov over er
units ts of of
deter- er-
to-
broad adca cast st
NTP pac packe kets ts, ,
config figurat uration ion
and it it
Change nge, ,
own
DNS se serv rver er
"Hard rd- -
erati ting ng: :
system sys tem pee peer r
mark rked ed "b "broa road- d-