NETGEAR 7000 Series Managed Switch - Manual (Page 130)

NETGEAR 7000 Series Managed Switch Administration Guide Version 7.2
11-4 Differentiated Services
v1.0, May 2008
DiffServ for VoIP Configuration Example
One of the most valuable uses of DiffServ is to support Voice over IP (VoIP). VoIP traffic is
inherently time-sensitive: for a network to provide acceptable service, a guaranteed transmission
rate is vital. This example shows one way to provide the necessary quality of service: how to set up
Attach the defined policy to interfaces 1/0/1 through 1/0/4 in the
inbound direction
(Netgear Switch) (Config)#interface 1/0/1
(Netgear Switch) (Interface 1/0/1)#service-policy in internet_access
(Netgear Switch) (Interface 1/0/1)#exit
(Netgear Switch) (Config)#interface 1/0/2
(Netgear Switch) (Interface 1/0/2)#service-policy in internet_access
(Netgear Switch) (Interface 1/0/2)#exit
(Netgear Switch) (Config)#interface 1/0/3
(Netgear Switch) (Interface 1/0/3)#service-policy in internet_access
(Netgear Switch) (Interface 1/0/3)#exit
(Netgear Switch) (Config)#interface 1/0/4
(Netgear Switch) (Interface 1/0/4)#service-policy in internet_access
(Netgear Switch) (Interface 1/0/4)#exit
Set the CoS queue configuration for the (presumed) egress inter-
face 1/0/5 such that each of queues 1, 2, 3 and 4 get a minimum
guaranteed bandwidth of 25%. All queues for this interface use
weighted round robin scheduling
by default. The DiffServ inbound policy designates that these
queues are to be used for the departmental traffic through the
assign-queue attribute. It is presumed that the switch will for-
ward this traffic to interface 1/0/5 based on a normal destination
address lookup for internet traffic.
(Netgear Switch) (Config)#interface 1/0/5
(Netgear Switch) (Interface 1/0/5)#cos-queue min-bandwidth 0 25 25 25 25 0 0 0
(Netgear Switch) (Interface 1/0/5)#exit
(Netgear Switch) (Config)#exit