Chapter 37 ZULD
GS2210 Series User’s Guide
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37.3 ZULD Configuration
Use t his scr een t o enable ZULD on a por t , configur e a m ode and set t he pr obe t im e. To open t his
scr een, click Adv a n ce d Applica t ion > ZULD > Con figu r a t ion.
Mode
This field indicat es w hat ZULD w ill do w hen a unidir ect ional link is det ect ed. I n N or m a l
m ode, ZULD only sends a sy slog and t rap w hen it det ect s a unidir ect ional link. I n
Ag gr e ssiv e m ode, ZU LD shut s dow n t he por t ( put s it int o an Er r D isa b le st at e) as w ell
as sends a syslog and t rap w hen it det ect s a unidir ect ional link .
Pr obe Tim e
Pr obe t im e is t he lengt h of t im e t hat ZULD wait s befor e declar ing t hat a link is
unidir ect ional. When t he pr obe t im e expir es, and one por t ( eit her on t he Sw it ch or t he
connect ed device) st ill has not r eceived an OAMPDU, t hen ZU LD declares t hat t he link is
unidir ect ional.
Link St at e
This field show s t he follow ing link st at es:
•
Lin k dow n : This is an init ializat ion st at e, w her e t he por t is not yet up.
•
Pr obe : This indicat es t hat ZULD is discover ing t he connect ed dev ice on t his link .
•
Bidir e ct ion a l: Traffic sent by t he Sw it ch is r eceived by t he connect ed device on t his
link , and t raffic fr om t he connect ed dev ice on t his link is r eceived by t he Sw it ch.
•
Un idir e ct ion a l: The st at e of t he link bet w een t he por t and it s connect ed por t cannot
be det er m ined eit her because no ZULD m essage was r eceived, or one por t is not
capable of sending t raffic.
•
Sh u t dow n : The por t has been shut dow n because it s link w it h t he connect ed dev ice
is unidir ect ional and ZULD is in Aggr e ssiv e m ode.
Rem ot e Operat ion
This field displays w het her ZULD is enabled or disabled on t he connect ed dev ice on t his
link . ZULD m ust be enabled on t he connect ed dev ice and on t he por t t hat ’s connect ing t o
t he Sw it ch.
Rem ot e MAC Addr
This is t he MAC addr ess of t he por t on t he connect ed dev ice t o w hich t he por t of t he
Sw it ch is connect ed.
Rem ot e Por t
This is t he por t num ber of t he por t on t he connect ed dev ice t o w hich t he por t of t he
Sw it ch is connect ed.
Table 158
Advanced Applicat ion > ZULD St at us ( cont inued)
LABEL
DESCRIPTION