在路由器的Fastethernet 做CBWFQ是有问题的！

aftersf

在路由器的Fastethernet 做CBWFQ是有问题的！

经过我反复测试，以前应用于serial 口的cbwqf，在fastethernet等高速网络上做Qos，实际效果非常差，基本上没效果。

你看同样的设定在serial0上，有效果，但是换成fastethernet就没点效果了。
大家有没有高见，我在测试流理整形成2M，再做Qos又有效果了。

大家想想，是不是有别的办法，原因在哪里呢？ 是路由的缓冲太小，还是队列对于高速网络没用。


有效果 Router#show run
!
class-map match-any a
match access-group 110
class-map match-any b
match access-group 120
class-map match-any c
match access-group 130
!
!
policy-map qos
class a
  priority 1600
  set precedence 5
class b
  bandwidth 300
  set precedence 3
class c
  bandwidth 100
  set precedence 1
!
interface FastEthernet0/0
ip address 192.168.100.254 255.255.255.0
duplex auto
speed auto

!
interface Serial0
bandwidth 2048
ip address 192.168.5.250 255.255.255.0
max-reserved-bandwidth 100
service-policy output qos
!
ip classless
ip route 0.0.0.0 0.0.0.0 192.168.5.254

access-list 110 permit ip host 192.168.100.2 host 192.168.5.1
access-list 120 permit ip host 192.168.100.3 host 192.168.5.1
access-list 130 permit ip any any


Router#



没效果 Router#show run
!
class-map match-any a
match access-group 110
class-map match-any b
match access-group 120
class-map match-any c
match access-group 130
!
!
policy-map qos
class a
  priority 32000
  set precedence 5
class b
  bandwidth 40000
  set precedence 3
class c
  bandwidth 20000
  set precedence 1
!
interface FastEthernet0/0
ip address 192.168.100.254 255.255.255.0
duplex auto
speed auto

!
interface FastEthernet0/1
bandwidth 102048
ip address 192.168.5.250 255.255.255.0
max-reserved-bandwidth 100
service-policy output qos
!
ip classless
ip route 0.0.0.0 0.0.0.0 192.168.5.254

access-list 110 permit ip host 192.168.100.2 host 192.168.5.1
access-list 120 permit ip host 192.168.100.3 host 192.168.5.1
access-list 130 permit ip any any


Router#