ZyXEL Communications GS2210-24, Руководство пользователя

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Chapter 22 Policy Rule
GS2210 Series User’s Guide
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Bandw idt h Specify t he bandw idt h in k ilobit per second ( Kbps) . Ent er a num ber bet w een 64 and
1000000.
Act ion
Specify t he act ion( s) t he Sw it ch t akes on t he associat ed classified t raffic flow.
Note: You can specify only one action (pair) in a policy rule. To have the Switch take multiple actions on the
same traffic flow, you need to define multiple classifiers with the same criteria and apply different policy
rules.
Say you have several classifier s t hat ident ify t he sam e t raffic flow and you specify a differ ent policy r ule for
each. I f t heir policy act ions conflict ( D isca r d t h e pa ck e t , Se n d t h e pa ck e t t o t h e e gr e ss por t and Ra t e
Lim it ) , t he Sw it ch only applies t he policy r ules w it h t he D isca r d t h e pa ck e t and Se n d t h e pa ck e t t o t h e
e gr e ss p or t act ions depending on t he classifier nam es. The longer t he classifier nam e, t he higher t he
classifier pr ior it y. I f t w o classifier nam es ar e t he sam e lengt h, t he bigger t he charact er, t he higher t he
classifier pr ior it y. The low er case let t er s ( such as a and b) have higher pr ior it y t han t he capit als ( such as A and
B) in t he classifier nam e. For exam ple, t he classifier w it h t he nam e of class 2, class a or class B t akes pr ior it y
over t he classifier w it h t he nam e of class 1 or class A.
Let ’s say you set t w o classifier s ( Class 1 and Class 2) and bot h ident ify all t raffic from MAC address
11: 22: 33: 44: 55: 66 on por t 3.
I f Policy 1 applies t o Class 1 and t he act ion is t o dr op t he packet s, Policy 2 applies t o Class 2 and t he act ion is
t o for war d t he packet s t o t he egr ess por t , t he Sw it ch w ill forw ar d t he packet s.
I f Policy 1 applies t o Class 1 and t he act ion is t o dr op t he packet s, Policy 2 applies t o Class 2 and t he act ion is
t o enable bandw idt h lim it at ion, t he Sw it ch w ill discard t he packet s im m ediat ely.
I f Policy 1 applies t o Class 1 and t he act ion is t o for war d t he packet s t o t he egr ess por t , Policy 2 applies t o
Class 2 and t he act ion is t o enable bandw idt h lim it at ion, t he Sw it ch w ill for war d t he packet s.
For war ding Select N o ch a n ge t o for war d t he packet s.
Select D isca r d t h e pa ck e t t o dr op t he packet s.
Pr ior it y Select N o ch a n ge t o keep t he pr ior it y set t ing of t he fram es.
Select Se t t h e pa ck e t ’s 8 0 2 .1 pr ior it y t o r eplace t he packet ’s 802.1 pr ior it y field w it h t he
value you set in t he Pr ior it y field.
Out going Select Se n d t h e pa ck e t t o t h e m ir r or por t t o send t he packet t o t he m irr or por t .
Select Se n d t h e pa ck e t t o t h e e gr e ss por t t o send t he packet t o t he egr ess por t .
Select Se t t h e pa ck e t 's V LAN I D t o replace t he VLAN I D of t he packet s w it h t he value you
configure in t he V LAN I D field.
Rat e Lim it Select En a ble t o act ivat e bandw idt h lim it at ion on t he t raffic flow ( s) .
Add Click Add t o inset t he ent r y t o t he sum m ar y t able below and save your changes t o t he
Sw it ch’s r un- t im e m em or y. The Sw it ch loses t hese changes if it is t urned off or loses pow er,
so use t he Sa v e link on t he t op navigat ion panel t o save your changes t o t he non- volat ile
m em or y w hen you ar e done configur ing.
Cancel Click Ca n ce l t o r eset t he fields back t o your pr ev ious configurat ion.
Clear Click Cle a r t o set t he above fields back t o t he fact or y default s.
I ndex This field display s t he policy index num ber. Click an index num ber t o edit t he policy.
Act ive This field displays Ye s w hen policy is act ivat ed and N o w hen is it deact ivat ed.
Nam e This field display s t he nam e you have assigned t o t his policy.
Classifier ( s) This field display s t he nam e( s) of t he classifier t o w hich t his policy applies.
Select an ent ry’s check box t o select a specific ent r y. Ot herw ise, select t he check box in t he
t able heading r ow t o select all ent r ies.
Table 76 Advanced Applicat ion > Policy Rule ( cont inued)
LABEL DESCRIPTION