OcNOS-DC : Quality of Service Guide : Quality of Service Configuration Guide : Bandwidth Configuration
Bandwidth Configuration
This chapter contains a complete sample of configuring Bandwidth.
Topology
Simple configuration of Bandwidth
L2/L3 Interface
The following steps describe how to configure bandwidth.
 
#configure terminal
Enter configure mode.
(config)#qos enable
Enable QoS globally.
(config)#qos statistics
Enable QoS statistics.
(config)#policy-map type queuing default P1
Configure policy-map of type queuing as default with name P1, and enter into policy-map mode
(config-pmap-que)#class type queuing default q2
Configure class-map of type queuing as default for q0 and enter into class-map mode
(config-pmap-c-que)#bandwidth percent 70
Configure minimum bandwidth as 70 percent of total bandwidth available on interface
(config-pmap-c-que)#exit
Exit out of policy-class mode
(config-pmap-que)#class type queuing default q3
Attach class q3 to Policy-map P1
(config-pmap-c-que)#bandwidth percent 30
Configure minimum bandwidth as 30 percent of remaining bandwidth available on interface after all allocations are done.
(config-pmap-c-que)#exit
Exit out of policy-class mode
(config-pmap-que)#exit
Exit out of Policy-map mode
(config)#class-map type qos c1
Enter Class-map mode
(config-cmap-qos)#match dscp 10
Configure match criteria as dscp 10
(config-cmap-qos)#match cos 3
Configure match criteria as cos 3
(config-cmap-qos)#exit
Exit out of class-map mode
(config)#class-map type qos c2
Enter Class-map mode
(config-cmap-qos)#match dscp 22
Configure match criteria as dscp 22
(config-cmap-qos)#match cos 4
Configure match criteria as cos 4
(config-cmap-qos)#exit
Exit out of class-map mode
(config)#policy-map type qos pmap1
Configure policy-map with name pmap1 and enter policy-map mode
(config-pmap-qos)#class type qos c1
Assign Class c1 to Policy-map pmap1
(config-pmap-c-qos)#set precedence 2
Set precedence to value 2
(config-pmap-c-qos)#exit
Exit out of pmap-c mode
(config-pmap-qos)#class type qos c2
Assign Class c2 to Policy-map pmap1
(config-pmap-c-qos)#set cos 2
Set cos to value 2
(config-pmap-c-qos)#exit
Exit out of pmap-c mode
(config)#interface xe3
Enter interface mode
(config-if)#service-policy type queuing output P1
Attach service-policy P1 of type queuing on out direction
(config-if)#exit
Exit out of interface mode
(config)#interface xe2
Enter interface mode
(config-if)#service-policy type qos input pmap1
Attach service-policy pmap1 of type qos on in direction
(config-if)#exit
Exit out of interface mode
(config)#bridge 1 protocol rstp vlan-bridge
Specify VLAN for bridge 1.
(config)#vlan database
Enter the VLAN configuration mode.
(config-vlan)#vlan 2-3 bridge 1 state enable
Enable VLAN (2-3) on bridge 1. Specifying the enable state.
(config-vlan)#exit
Exit the VLAN configuration mode.
(config)#interface vlan1.2
Enter interface mode.
(config-if)# ip address 10.1.1.2/24
Configure the IP address.
(config-if)#exit
Exit the interface mode.
(config)#interface vlan1.3
Enter interface mode.
(config-if)# ip address 20.1.1.1/24
Configure the IP address.
(config-if)#exit
Exit the interface mode.
(config)#interface xe2
Enter interface mode.
(config-if)#switchport
Configure xe2 as a Layer 2 port.
(config-if)#bridge-group 1
Associate the interface with bridge group 1.
(config-if)#switchport mode trunk
Configure port as a trunk.
(config-if)#switchport trunk allowed vlan all
Allow all the VLANs on the xe3 interface.
(config-if)#exit
Exit the interface mode.
(config)#interface xe3
Enter interface mode.
(config-if)#switchport
Configure xe3 as a Layer 2 port.
(config-if)#bridge-group 1
Associate the interface with bridge group 1.
(config-if)#switchport mode trunk
Configure port as a trunk.
(config-if)#switchport trunk allowed vlan all
Allow all the VLANs on the xe3 interface.
(config-if)#exit
Exit the interface mode.
Validation
Enter the commands listed in the sections below to confirm the configurations.
#show running-config qos
qos enable
!
qos statistics
!
class-map type qos c1
match dscp af11
match cos 2
!
class-map type qos c2
match dscp af23
match cos 4
!
policy-map type qos pmap1
class type qos c1
set precedence
immediate
exit
class type qos
c2
set cos 2
exit
 
!
policy-map type queuing default P1
class type queuing default q1
priority
bandwidth percent 70
exit
class type queuing q2
priority
bandwidth percent 30
exit
!
!
!
interface xe2
service-policy type qos input pmap1
!
interface xe3
service-policy type queuing output P1
!
 
#show policy-map interface xe2
 
Interface xe2
 
Type QoS statistics status : enabled
 
Class-map (qos): c1 (match all)
match dscp af11
match cos 3
set precedence 2
 
Class-map (qos): c2 (match all)
match dscp af23
match cos 4
set cos 2
 
 
Type Queuing policy-map : default-out-policy
 
Class-map (queuing): q0
priority
output : 0 packets, 0 bytes
dropped : 0 packets, 0 bytes
 
Class-map (queuing): q1
priority
output : 0 packets, 0 bytes
dropped : 0 packets, 0 bytes
 
Class-map (queuing): q2
priority
output : 0 packets, 0 bytes
dropped : 0 packets, 0 bytes
 
Class-map (queuing): q3
priority
output : 0 packets, 0 bytes
dropped : 0 packets, 0 bytes
 
Class-map (queuing): q4
priority
output : 0 packets, 0 bytes
dropped : 0 packets, 0 bytes
 
Class-map (queuing): q5
priority
output : 0 packets, 0 bytes
dropped : 0 packets, 0 bytes
 
Class-map (queuing): q6
priority
output : 6 packets, 724 bytes
dropped : 0 packets, 0 bytes
 
Class-map (queuing): q7
priority
output : 0 packets, 0 bytes
dropped : 0 packets, 0 bytes
 
Class-map (queuing): mc-q0
output : 0 packets, 0 bytes
dropped : 0 packets, 0 bytes
 
Class-map (queuing): mc-q1
output : 0 packets, 0 bytes
dropped : 0 packets, 0 bytes
 
Class-map (queuing): mc-q2
output : 0 packets, 0 bytes
dropped : 0 packets, 0 bytes
 
Class-map (queuing): mc-q3
output : 0 packets, 0 bytes
dropped : 0 packets, 0 bytes
 
Class-map (queuing): mc-q4
output : 0 packets, 0 bytes
dropped : 0 packets, 0 bytes
 
Class-map (queuing): mc-q5
output : 0 packets, 0 bytes
dropped : 0 packets, 0 bytes
 
Class-map (queuing): mc-q6
output : 0 packets, 0 bytes
dropped : 0 packets, 0 bytes
 
Class-map (queuing): mc-q7
output : 1 packets, 90 bytes
dropped : 0 packets, 0 bytes
 
Wred/Tail Drop Statistics :
----------------------
green : 0 packets
yellow : 0 packets
red : 0 packets
 
 
#show policy-map interface xe3
 
Interface xe3
Type Queuing policy-map : P1
 
Class-map (queuing): q0
priority
output : 0 packets, 0 bytes
dropped : 0 packets, 0 bytes
 
Class-map (queuing): q1
priority
output : 0 packets, 0 bytes
dropped : 0 packets, 0 bytes
 
Class-map (queuing): q2
priority
bandwidth percent 70
output : 0 packets, 0 bytes
dropped : 0 packets, 0 bytes
 
Class-map (queuing): q3
priority
bandwidth percent 30
output : 0 packets, 0 bytes
dropped : 0 packets, 0 bytes
 
Class-map (queuing): q4
priority
output : 0 packets, 0 bytes
dropped : 0 packets, 0 bytes
 
Class-map (queuing): q5
priority
output : 0 packets, 0 bytes
dropped : 0 packets, 0 bytes
 
Class-map (queuing): q6
priority
output : 0 packets, 0 bytes
dropped : 0 packets, 0 bytes
 
Class-map (queuing): q7
priority
output : 0 packets, 0 bytes
dropped : 0 packets, 0 bytes
 
Class-map (queuing): mc-q0
output : 0 packets, 0 bytes
dropped : 0 packets, 0 bytes
 
Class-map (queuing): mc-q1
output : 0 packets, 0 bytes
dropped : 0 packets, 0 bytes
 
Class-map (queuing): mc-q2
output : 0 packets, 0 bytes
dropped : 0 packets, 0 bytes
 
Class-map (queuing): mc-q3
output : 0 packets, 0 bytes
dropped : 0 packets, 0 bytes
 
Class-map (queuing): mc-q4
output : 0 packets, 0 bytes
dropped : 0 packets, 0 bytes
 
Class-map (queuing): mc-q5
output : 0 packets, 0 bytes
dropped : 0 packets, 0 bytes
 
Class-map (queuing): mc-q6
output : 0 packets, 0 bytes
dropped : 0 packets, 0 bytes
 
Class-map (queuing): mc-q7
output : 0 packets, 0 bytes
dropped : 0 packets, 0 bytes
 
Wred/Tail Drop Statistics :
----------------------
green : 0 packets
yellow : 0 packets
red : 0 packets