Dell S5148F-ON OS10 Enterprise Edition User Guide Release 10.3.2E-R1 - Page 446

Mark traffic, Class of service marking

Page 446 highlights

2 Apply the L3 precedence match criteria for the QoS policy in the CLASS-MAP configuration mode. Configure the match IP precedence value as single, comma-delimited, or hyphenated range-0 to 7. Use the match not command to match all values except the values configured. • match ip precedence precedence-value | precedence-list | precedence-range-IPv4 protocol use • match ipv6 precedence precedence-value | precedence-list | precedence-range-IPv6 protocol use 3 Enter a policy-map name and type qos in CONFIGURATION mode. policy-map type qos policy-map-name 4 Associate a policy-map with a class-map in POLICY-MAP mode. class class-map-name 5 Enter a queue number for matched flow as qos-group ID in POLICY-MAP-CLASS-MAP mode-0 to 7. set qos-group queue-number Configure IP precedence classification OS10(config)# class-map type qos bluedscp OS10(conf-cmap-qos)# match ip precedence 5 OS10(conf-cmap-qos)# exit OS10(config)# policy-map type qos reddscp OS10(conf-pmap-qos)# class bluedscp OS10(conf-pmap-c-qos)# set qos-group 6 View policy-map OS10(conf-pmap-c-qos)# do show policy-map Service-policy(qos) input: reddscp Class-map (qos): bluedscp set qos-group 6 OS10(conf-pmap-c-qos)# do show policy-map Service-policy(qos) input: pmap1 Class-map (qos): class-trust trust dot1p Mark traffic Marking allows you to add or set the 802.1p priorities to a L2 header, or set the DSCP value to L3 header. You can mark classified traffic with a traffic-class ID (qos-group Id) as well. Since traffic-class ID (qos-group ID) and queue ID have a one-to-one mapping, you can use qos-group and queue interchangeably. Marking packet fields allows you to identify the traffic type based on the configured QoS information for a specific packet. CoS (or dot1P values) DSCP QoS group Use the set cos dot1p-values command to mark the CoS field - 0 to 7. Use the set dscp dscp-values command to mark the DSCP field - 0 to 63. Use the set qos-group queue-number command to mark the QoS Group field - 0 to 11. Class of service marking To tag an incoming packet with 802.1p priorities, or modify incoming packets you can mark class of service (CoS). The set cos command is only supported under the ingress QoS policy type qos. 1 Create a policy-map of type qos and configure a name for the policy-map in CONFIGURATION mode. policy-map type qos policy-map-name 2 Configure a QoS class for classified traffic in POLICY-MAP mode (up to 32 characters). class class-name 3 Configure marking for CoS in POLICY-MAP-CLASS-MAP mode (0 to 7). set cos dot1p-value 446 Quality of service

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2
Apply the L3 precedence match criteria for the QoS policy in the CLASS-MAP
configuration
mode.
Configure
the match IP
precedence value as single, comma-delimited, or hyphenated range—0 to 7. Use the
match not
command to match all values
except the values
configured.
match ip precedence
precedence-value | precedence-list | precedence-range
—IPv4 protocol use
match ipv6 precedence
precedence-value | precedence-list | precedence-range
—IPv6 protocol use
3
Enter a policy-map name and type
qos
in CONFIGURATION mode.
policy-map type qos
policy—map-name
4
Associate a policy-map with a class-map in POLICY-MAP mode.
class
class-map-name
5
Enter a queue number for matched
flow
as qos-group ID in POLICY-MAP-CLASS-MAP mode—0 to 7.
set qos-group
queue-number
Configure
IP precedence
classification
OS10(config)# class-map type qos bluedscp
OS10(conf-cmap-qos)# match ip precedence 5
OS10(conf-cmap-qos)# exit
OS10(config)# policy-map type qos reddscp
OS10(conf-pmap-qos)# class bluedscp
OS10(conf-pmap-c-qos)# set qos-group
6
View policy-map
OS10(conf-pmap-c-qos)# do show policy-map
Service-policy(qos) input: reddscp
Class-map (qos): bluedscp
set qos-group 6
OS10(conf-pmap-c-qos)# do show policy-map
Service-policy(qos) input: pmap1
Class-map (qos): class-trust
trust dot1p
Mark
traffic
Marking allows you to add or set the 802.1p priorities to a L2 header, or set the DSCP value to L3 header. You can mark
classified
traffic
with a
traffic-class
ID (qos-group Id) as well. Since
traffic-class
ID (qos-group ID) and queue ID have a one-to-one mapping, you can use
qos-group and queue interchangeably. Marking packet
fields
allows you to identify the
traffic
type based on the
configured
QoS information
for a
specific
packet.
CoS (or dot1P
values)
Use the
set cos
dot1p-values
command to mark the CoS
field
- 0 to 7.
DSCP
Use the
set dscp
dscp-values
command to mark the DSCP
field
- 0 to 63.
QoS group
Use the
set qos-group
queue-number
command to mark the QoS Group
field
- 0 to 11.
Class of service marking
To tag an incoming packet with 802.1p priorities, or modify incoming packets you can mark class of service (CoS). The
set cos
command
is only supported under the ingress QoS policy type
qos
.
1
Create a policy-map of type
qos
and
configure
a name for the policy-map in CONFIGURATION mode.
policy-map type qos
policy-map-name
2
Configure
a QoS class for
classified
traffic
in POLICY-MAP mode (up to 32 characters).
class
class-name
3
Configure
marking for CoS in POLICY-MAP-CLASS-MAP mode (0 to 7).
set cos
dot1p-value
446
Quality of service