Newbie Omni 6248 VOIP QOS

[Lacio]

Hello,

It's forst time for me I work on a Alcatel Switch.
I've found a configuration made by other with advanced qos enabled for the voip traffic, but we've a lot of problem with data traffic, really slow...

the configuration is this:

interface range ethernet e(2-48),g(1-4)
switchport mode trunk
exit
vlan database
vlan 8-9,100
exit
interface range ethernet e(2-48),g(1-4)
switchport trunk native vlan 8
exit
interface range ethernet e(2-48),g(1-4)
switchport trunk allowed vlan add 9
exit
interface ethernet e1
switchport access vlan 100
exit
interface ethernet g2
switchport trunk allowed vlan add 100
exit
interface vlan 8
name "VLAN DATA"
exit
interface vlan 9
name "VLAN VOIP"
exit
interface vlan 100
name "VLAN WF"
exit
interface vlan 8
ip address x.x.x.x x.x.x.x
exit
ip default-gateway x.x.x.x
qos advanced
mac access-list ACLvoice
permit any any vlan 9
exit
mac access-list ACLData
permit any any
exit
class-map VoiceClass
match access-group ACLvoice
exit
class-map DataClass
match access-group ACLData
exit
policy-map VOIP
class VoiceClass
exit
class DataClass
exit
exit
interface ethernet e2
service-policy input VOIP
exit
interface ethernet e3
service-policy input VOIP
exit
interface ethernet e4
service-policy input VOIP
exit
interface ethernet e5
service-policy input VOIP
exit
.
.
the same for all ports
.
.
interface ethernet e48
service-policy input VOIP
exit
interface ethernet g1
service-policy input VOIP
exit
interface ethernet g2
service-policy input VOIP
exit
interface ethernet g3
service-policy input VOIP
exit
interface ethernet g4
service-policy input VOIP
exit

Anyone could please help me to undertand if this is a good config?

Thanks in Advance, Luca