ZyXEL Communications GS2210-24, Руководство пользователя

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Chapter 24 Multicast
GS2210 Series User’s Guide
198
Figure 140 Advanced Applicat ion > Mult icast > I Pv6 Mult icast > MLD Snooping- pr ox y > VLAN
The follow ing t able descr ibes t he fields in t he above scr een.
Table 85
Advanced Applicat ion > Mult icast > I Pv6 Mult icast > MLD Snooping- pr ox y > VLAN
LABEL DESCRIPTION
VI D Ent er t he I D num ber of t he VLAN on w hich you want t o enable MLD snooping- pr oxy
and configur e relat ed set t ings.
Upst r eam
Quer y I nt er val Ent er t he am ount of t im e ( in m iliseconds) bet w een general query m essages sent by
t he r out er connect ed t o t he upst r eam por t . This value should be ex act ly t he sam e as
w hat ’s configur ed in t he connect ed m ult icast r out er.
This value is used t o calculat e t he am ount of t im e an MLD snooping m em ber ship
ent r y ( lear ned only on t he upst r eam por t ) can r em ain in t he for war ding t able.
When an MLD Repor t m essage is r eceived, t he Sw it ch set s t he t im eout per iod of t he
ent r y t o be T = ( QI * RV) + MRD, w her e T = Tim eout , QI = Query I nt er val, RV =
Robust ness Var iable, and MRD = Maxim um Response Delay.
Max im um Response
Delay Ent er t he am ount of t im e ( in m iliseconds) t he rout er connect ed t o t he upst r eam por t
wait s for a r esponse t o an MLD general quer y m essage. This value should be ex act ly
t he sam e as w hat ’s configur ed in t he connect ed m ult icast r out er.
This value is used t o calculat e t he am ount of t im e an MLD snooping m em ber ship
ent r y ( lear ned only on t he upst r eam por t ) can r em ain in t he for war ding t able.
When an MLD Repor t m essage is r eceived, t he Sw it ch set s t he t im eout per iod of t he
ent r y t o be T = ( QI * RV) + MRD, w her e T = Tim eout , QI = Query I nt er val, RV =
Robust ness Var iable, and MRD = Maxim um Response Delay.
When an MLD Done m essage is r eceived, t he Sw it ch set s t he ent r y’s lifet im e t o be t he
pr oduct of La st M e m be r Qu e r y I n t e r v a l and Robu st n e ss V a r ia ble .
Robust ness Var iable Ent er t he num ber of quer ies. A m ult icast addr ess ent r y ( lear ned only on an upst r eam
por t by snooping) is r em oved from t he for warding t able w hen t her e is no r esponse t o
t he configured num ber of quer ies sent by t he r out er connect ed t o t he upst r eam por t .
This value should be exact ly t he sam e as w hat ’s configur ed in t he connect ed m ult icast
r out er.
This value is used t o calculat e t he am ount of t im e an MLD snooping m em ber ship
ent r y ( lear ned only on t he upst r eam por t ) can r em ain in t he for war ding t able.