R2511-HP MSR Router Series WLAN Configuration Guide(V5)
64
• The SVP packet mapping function takes effect only after you enable WMM.
Configuration procedure
Ste
p
Command
Remarks
1. Enter system view.
system-view N/A
2. Enter WLAN-radio interface
view.
interface wlan-radio radio-number N/A
3. Enable WMM.
wmm enable
By default, WMM is enabled.
The 802.11n protocol stipulates
that all 802.11n clients support
WLAN QoS. Therefore, when the
radio operates in 802.11gn
mode, you should enable WMM.
Otherwise, the associated
802.11n clients might fail to
communicate.
4. Set the EDCA parameters of
AC-VO or AC-VI queues for
clients.
wmm edca client { ac-vo | ac-vi }
{ aifsn aifsn-value | ecw ecwmin
ecwmin-value ecwmax ecwmax
-value | txoplimit txoplimit-value |
cac } *
Optional.
By default, a client uses the default
EDCA parameters shown in Table
3.
5. Set the EDCA parameters of
AC-BE or AC-BK queues for
clients.
wmm edca client { ac-be | ac-bk }
{ aifsn aifsn-value | ecw ecwmin
ecwmin-value ecwmax ecwmax
-value | txoplimit txoplimit -value } *
Optional.
By default, a client uses the default
EDCA parameters shown in Table
3.
6. Set the EDCA parameters and
specify the ACK policy for the
radio.
wmm edca radio { ac-vo | ac-vi |
ac-be | ac-bk } { aifsn aifsn-value |
ecw ecwmin ecwmin-value ecwmax
ecwmax -value | txoplimit txoplimit
-value | noack } *
Optional.
By default, an AP uses the default
EDCA parameters shown in Table
4 and uses the Normal ACK
poli
cy.
7. Set the CAC policy.
wmm cac policy { channelutilization
[ channelutilization-value ] | users
[ users-number ] }
Optional.
By default, the users-based
admission policy applies, with the
maximum number of users being
20.
8. Map SVP packets to a
specified AC queue.
wmm svp map-ac { ac-vi | ac-vo |
ac-be | ac-bk }
Optional.
By default, the SVP packet
mapping function is disabled.
SVP packet mapping applies to
non WMM clients, and does not
take effect on WMM clients.
Table 3 The default EDCA parameters for clients
AC
q
ueue AIFSN ECWmin
ECWma
x
TXOP Limit
AC-BK queue 7 4 10 0
AC-BE queue 3 4 10 0










