Syntax
burst-mode enable
undo burst-mode enable
View
System view
Parameters
None
Description
Use the burst-mode enable command to
enable the burst function.
Use the undo burst-mode enable
command to disable the burst function.
By default, the burst function is disabled.
The burst function improves packet
buffering and forwarding performance in the following scenarios:
l
Dense broadcast or multicast traffic and massive
burst traffic are present.
l
High-speed traffic is forwarded over a low-speed
link or traffic received from multiple interfaces at the same speed is
forwarded through an interface at the same speed.
By enabling the burst function on your
switch, you can improve the processing performance of the switch operating in
the above scenarios and thus drop packet loss rate.
Caution:
l
For packets to be forwarded properly, you must
not enable the burst function when the IRF function is enabled. Refer to IRF
Fabric Operation for detailed information about IRF.
l
Because the burst function may affect the QoS
performance of your switch, you must make sure that you are fully aware of the impacts
when enabling the burst function.
Examples
# Enable the burst function.
<Sysname> system-view
System View: return to User View with
Ctrl+Z.
[Sysname] burst-mode enable
Syntax
display protocol-priority
View
Any view
Parameters
None
Description
Use the display protocol-priority command
to display the list of protocol priorities you assigned with the protocol-priority
command.
An S5600 series switch supports setting priorities
for certain protocol packets generated by it. The supported protocols are Telnet,
SNMP, ICMP, OSPF, and BGP. Depending on your configuration, the IP or DSCP
precedence is displayed for a specified protocol.
Related commands: protocol-priority.
Examples
# Display the list of protocol priorities
manually specified.
<Sysname> display
protocol-priority
Protocol: ospf
IP-Precedence: routine(0)
Protocol: telnet
DSCP: be(0)
Table 1-1
Description on the fields of the display protocol-priority
command
|
Field
|
Description
|
|
Protocol: ospf
|
Indicate that a priority has been set for
OSPF packets with the protocol-priority command.
|
|
IP-Precedence: routine(0)
|
An IP precedence has been assigned to OSPF
packets. The assigned IP precedence is 0, that is, routine in words.
For information about the IP precedence range,
refer to Table 1-6.
|
|
Protocol: telnet
|
Indicate that a priority has been set for
Telnet packets with the protocol-priority command.
|
|
DSCP: be(0)
|
A DSCP precedence has been assigned to Telnet
packets. The assigned value is 0, that is, be in words.
For information about the DSCP precedence
range, refer to Table
1-7.
|
1.1.3 display qos cos-local-precedence-map
Syntax
display qos cos-local-precedence-map
View
Any view
Parameters
None
Description
Use the display qos
cos-local-precedence-map command to display the 802.1p priority-to-local precedence
mapping, illustrated by an 802.1p priority-to-local precedence mapping table as
shown in the following example.
After a packet enters a switch, the switch
sets the 802.1p priority and local precedence for the packet according to its
own capability and the corresponding rules. The local precedence is locally
significant precedence that the switch assigns to the packet. It corresponds to
an output queue. Packets with higher local precedence values take precedence
over those with lower precedence values and will be processed preferentially.
Related commands: qos cos-local-precedence-map.
Examples
# Display the 802.1p priority-to-local precedence
mapping.
<Sysname> display qos
cos-local-precedence-map
cos-local-precedence-map:
cos(802.1p) : 0
1 2 3 4 5 6 7
------------------------------------------------------------------------
local precedence(queue) : 2 0
1 3 4 5 6 7
Syntax
display qos-interface { interface-type interface-number | unit-id } all
View
Any view
Parameters
interface-type interface-number: Specifies the type and number of a port, for which QoS
configuration information is to be displayed.
unit-id:
Unit ID of the switch whose QoS-related configuration is to be displayed. Table 1-2 shows the value
range for the unit-id argument.
Table 1-2 The value range for the unit-id
argument
|
For a switch not in a fabric
|
For a switch in a fabric
|
|
Always 1
|
The unit ID ranges from 1 to 8, depending
on the unit ID of the switch in the fabric. For example, if two switches form
a fabric, with the unit IDs being 3 and 5 respectively, the unit IDs of the two
switches can only be 3 and 5.
|
Description
Use the display qos-interface all command
to display all the QoS-related configuration settings of a port or a unit.
Examples
# Display all the QoS-related configuration
of GigabitEthernet 1/0/1.
<Sysname> display qos-interface GigabitEthernet 1/0/1 all
GigabitEthernet1/0/1: traffic-limit
Inbound:
Matches: Acl 2000 rule 0 running
Effect mode: Union effect
Target rate: 64 Kbps
Burst bucket size: 16 Kbyte
Exceed action: remark-dscp cs7
GigabitEthernet1/0/1:
traffic-priority
Inbound:
Matches: Acl 2000 rule 0 running
Priority action: dscp cs6
GigabitEthernet1/0/1:
traffic-redirect
Inbound:
Matches: Acl 2000 rule 0 running
Redirected to: interface
GigabitEthernet1/0/2
GigabitEthernet1/0/1:
traffic-statistic
Inbound:
Matches: Acl 2000 rule 0 running
6 packets inprofile
0 packet outprofile
GigabitEthernet1/0/1: mirrored-to
Inbound:
Matches: Acl 2000 rule 0 running
Mirrored to: monitor interface
GigabitEthernet1/0/1: line-rate
Outbound: 64 Kbps
GigabitEthernet1/0/1:
Queue scheduling mode: weighted
round robin
weight of queue 0: 1
weight of queue 1: 2
weight of queue 2: 3
weight of queue 3: 4
weight of queue 4: 5
weight of queue 5: 9
weight of queue 6: 13
weight of queue 7: 15
GigabitEthernet1/0/1:
traffic-remark-vlanid
Inbound:
Matches: Acl 2000 rule 0 running
Remark vlan: 2
Table 1-3 Description
on the fields of the display qos-interface all command
|
Field
|
Description
|
|
GigabitEthernet1/0/1
|
QoS functions configured on a port,
including
l
traffic-limit, traffic policing configuration
l
traffic-priority, priority marking
configuration
l
traffic-redirect, traffic redirecting
configuration
l
traffic-statistic, traffic accounting
configuration
l
mirrored-to, traffic mirroring configuration
l
line-rate, port speed limit configuration
l
traffic-remark-vlanid, VLAN mapping
configuration
|
|
Inbound
|
Packet direction
|
|
Matches
|
ACL rules for traffic classifying
|
|
Effect mode
|
Union effect, indicating that the ACL referenced
in the traffic-limit command takes effect together with the other ACLs
applied to the port.
|
|
Target rate
|
Traffic policing target rate, in kbps
|
|
Bucket burst size
|
Maximum burst traffic size allowed, in KB
|
|
Exceed action
|
Action to take for exceeding packets:
l
drop: Drops the packets.
l
remark-dscp: Re-marks the DSCP precedence of
the packets and forwards the packets.
|
|
Priority action
|
Priority marking action, which can be:
l cos: Sets 802.1p precedence for packets.
l dscp: Sets DSCP precedence for packets.
l ip-precedence: Sets IP precedence for packets.
l
local-precedence: Sets local precedence for
packets.
|
|
Redirected to
|
l
“interface” indicates that the
packets are redirected to the port.
l
“cpu” indicates that the packets
are redirected to the CPU.
l
“link-aggregation-group” indicates
that the packets are redirected to the aggregation group.
|
|
inprofile
|
Statistics about the packets within the
traffic limit
|
|
outprofile
|
Statistics about the packets beyond the
traffic limit
|
|
Mirrored to
|
l
“monitor interface” indicates that
the packets are duplicated to a port.
l
“cpu” indicates that the packets
are duplicated to the CPU.
|
|
Queue scheduling mode
|
Queue scheduling algorithm, which can be:
l
strict priority
l
weighted round robin (WRR)
|
|
Remark vlan
|
Target VLAN ID used in VLAN mapping
|
Syntax
display qos-interface { interface-type interface-number | unit-id } line-rate
View
Any view
Parameters
interface-type interface-number: Specifies the type and number of the port, of which the line rate
configuration is to be displayed.
unit-id: Unit
ID of the switch for which line rate configuration is to be displayed. For the value
range for the unit-id argument, refer to Table 1-2.
Description
Use the display qos-interface line-rate command
to display the line rate configuration of a port or the ports on a unit.
Related commands: line-rate.
Examples
# Display the line rate configuration of GigabitEthernet
1/0/1.
<Sysname> display qos-interface
GigabitEthernet 1/0/1 line-rate
GigabitEthernet1/0/1: line-rate
Outbound: 128 Kbps
Burst bucket size: 16 Kbyte
Refer to Table 1-3 for the description on the
output fields.
1.1.6 display qos-interface mirrored-to
Syntax
display qos-interface { interface-type interface-number | unit-id } mirrored-to
View
Any view
Parameters
interface-type interface-number: Specifies the type and number of a port for which traffic
mirroring configuration is to be displayed.
unit-id: Unit
ID of the switch for which traffic mirroring configuration is to be displayed. For
the value range for the unit-id argument, refer to Table 1-2.
Description
Use the display qos-interface mirrored-to
command to display the traffic mirroring configuration of a port or a unit.
Related commands: mirrored-to.
Examples
# Display the traffic mirroring
configuration of GigabitEthernet 1/0/1.
<Sysname> display qos-interface
GigabitEthernet 1/0/1 mirrored-to
GigabitEthernet1/0/1: mirrored-to
Inbound:
Matches: Acl 2000 rule 0 running
Mirrored to: monitor interface
Refer to Table 1-3 for the description on the
output fields.
Syntax
display qos-interface { interface-type interface-number | unit-id } traffic-limit
View
Any view
Parameters
interface-type interface-number: Specifies the type and number of a port for which traffic policing
configuration is to be displayed.
unit-id: Unit
ID of the switch whose traffic policing configuration is to be displayed. For the
value range for the unit-id argument, refer to Table 1-2.
Description
Use the display qos-interface
traffic-limit command to display the traffic policing configuration of a port
or a unit.
Related commands: traffic-limit.
Examples
# Display the traffic policing
configuration of GigabitEthernet 1/0/1.
<Sysname>
display qos-interface GigabitEthernet 1/0/1 traffic-limit
GigabitEthernet1/0/1: traffic-limit
Inbound:
Matches: Acl 3000 rule 1 running
Target rate: 640 Kbps
Burst bucket size: 16 Kbyte
Exceed action: remark-dscp cs7
Refer to Table 1-3 for the description on the
output fields.
Syntax
display qos-interface { interface-type interface-number | unit-id } traffic-priority
View
Any view
Parameters
interface-type interface-number: Specifies the type and number of a port for which priority marking
configuration is to be displayed.
unit-id: Unit
ID of the switch whose priority marking configuration is to be displayed. For
the value range for the unit-id argument, refer to Table 1-2.
Description
Use the display qos-interface
traffic-priority command to display the priority marking configuration of a
port or a unit.
Related commands: traffic-priority.
Examples
# Display the priority marking configuration
of GigabitEthernet 1/0/1.
<Sysname> display qos-interface
GigabitEthernet 1/0/1 traffic-priority
GigabitEthernet1/0/1:
traffic-priority
Inbound:
Matches: Acl 2000 rule 0 running
Priority action: dscp ef
Refer to Table 1-3 for the description on the
output fields.
Syntax
display qos-interface { interface-type interface-number | unit-id } traffic-redirect
View
Any view
Parameters
interface-type interface-number: Specifies the type and number of a port for which traffic
redirecting configuration is to be displayed.
unit-id: Unit
ID of the switch whose traffic redirecting configuration is to be displayed. For
the value range for the unit-id argument, refer to Table 1-2.
Description
Use the display qos-interface traffic-redirect
command to display the traffic redirecting configuration of a port or a
unit.
Related commands: traffic-redirect.
Examples
# Display the traffic redirecting configuration
of GigabitEthernet 1/0/1.
<Sysname> display qos-interface
GigabitEthernet 1/0/1 traffic-redirect
GigabitEthernet1/0/1:
traffic-redirect
Inbound:
Matches: Acl 3000 rule 0 running
Redirected to: interface
GigabitEthernet1/0/2
Refer to Table 1-3 for the description on the
output fields.
Syntax
display qos-interface { interface-type interface-number | unit-id } traffic-remark-vlanid
View
Any view
Parameters
interface-type interface-number: Specifies the type and number of a port for which VLAN mapping
configuration is to be displayed.
unit-id:
Unit ID of the switch whose VLAN mapping configuration is to be displayed. For
the value range for the unit-id argument, refer to Table 1-2.
Description
Use the display qos-interface traffic-remark-vlanid
command to display the VLAN mapping configuration of a port or a unit.
Related commands: traffic-remark-vlanid.
Examples
# Display the VLAN mapping configuration of
GigabitEthernet 1/0/1.
<Sysname> display
qos-interface GigabitEthernet 1/0/1 traffic-remark-vlanid
GigabitEthernet1/0/1:
traffic-remark-vlanid
Inbound:
Matches: Acl 4000 rule 0 running
Remark vlan: 101
Refer to Table 1-3 for the description on the
output fields.
Syntax
display qos-interface { interface-type interface-number | unit-id } traffic-statistic
View
Any view
Parameters
interface-type interface-number: Specifies the type and number of a port for which traffic
accounting configuration is to be displayed.
unit-id: Unit
ID of the switch for which traffic accounting configuration and traffic
statistics are to be displayed. For the value range for the unit-id
argument, refer to Table
1-2.
Description
Use the display qos-interface
traffic-statistic command to display the traffic accounting configuration and
traffic statistics of a port or a unit.
Related commands: traffic-statistic.
Examples
# Display the traffic accounting configuration
and traffic statistics of GigabitEthernet 1/0/1.
<Sysname> display qos-interface
GigabitEthernet 1/0/1 traffic-statistic
GigabitEthernet1/0/1: traffic-statistic
Inbound:
Matches: Acl 2000 rule 2 running
6 packets inprofile
0 packet outprofile
Refer to Table 1-3 for the description on the
output fields.
Syntax
display queue-scheduler
View
Any view
Parameters
None
Description
Use the display queue-scheduler
command to display the global queue scheduling configuration.
This command does not display the weight or
bandwidth set for a queue in port view. To display the setting, you can perform
the display this command in port view.
Related commands: queue-scheduler.
Examples
# Display the global queue scheduling configuration.
<Sysname> display queue-scheduler
Queue scheduling mode: weighted
round robin
weight of queue 0: 1
weight of queue 1: 2
weight of queue 2: 3
weight of queue 3: 4
weight of queue 4: 5
weight of queue 5: 9
weight of queue 6: 13
weight of queue 7: 15
Refer to Table 1-3 for the description of the
output fields.
Syntax
line-rate outbound target-rate [ burst-bucket burst-bucket-size ]
undo line-rate outbound
View
Ethernet port view
Parameters
outbound: Limits
the outbound packet rate.
target-rate:
Target rate (in kbps). The following are value ranges for the argument:
l
GigabitEthernet port: 64 to 1000000
l
10-GigabitEthernet port: 1000 to 10000000
The granularity of port rate limit is 64 kbps.
Assume that the value you provide for the target-rate argument is in the
range N*64 to (N+1)*64 (N is a natural number), it will be rounded off to (N+1)*64.
burst-bucket burst-bucket-size: Specifies the
maximum burst traffic size (in KB). This is the buffer size provided for burst
traffic while traffic is being forwarding or received at the rate of target-rate.
The following are the value ranges for the burst-bucket-size argument:
l
GigabitEthernet port: 4 to 512
l
10 GigabitEthernet port: 4 to 8192
The burst-bucket-size argument must
be an integer power of 2. If it is not specified, 64 KB applies by default.
Description
Use the line-rate command to limit the
rate of the outbound packets on a port.
Use the undo line-rate command to cancel
the line rate configuration.
Compared to traffic policing, line rate
applies to all the inbound or outbound packets passing through a port and thus a
simpler solution when you only want to limit the rate of all the inbound or
outbound packets passing through a port as a whole.
Related commands: display qos-interface
line-rate.
Examples
# Limit the inbound packet rate to 128 kbps
on GigabitEthernet 1/0/1.
<Sysname> system-view
System View: return to User View with
Ctrl+Z.
[Sysname] interface GigabitEthernet
1/0/1
[Sysname-GigabitEthernet1/0/1] line-rate
outbound 128
# Display the line rate configuration of GigabitEthernet
1/0/1.
[Sysname-GigabitEthernet1/0/1] display
qos-interface GigabitEthernet 1/0/1 line-rate
GigabitEthernet1/0/1: line-rate
outbound: 128 Kbps
1.1.14 mirrored-to
Syntax
mirrored-to inbound acl-rule { monitor-interface | cpu
}
undo mirrored-to inbound acl-rule
View
Ethernet port view
Parameters
inbound:
Duplicates inbound packets.
acl-rule: ACL
rules to be used for traffic classification. This argument can be a combination
of multiple ACLs. For more information about this argument, refer to Table 1-4
and Table 1-5. Note that the ACL rules referenced must be those defined with the permit
keyword.
Table 1-4 Ways of applying combined ACL rules
|
ACL combination
|
Form of the acl-rule argument
|
|
Apply a basic or advanced Layer 3 ACL
|
ip-group acl-number
|
|
Apply a rule in an Layer 3 ACL
|
ip-group acl-number
rule rule-id
|
|
Apply all the rules in a Layer 2 ACL
|
link-group
acl-number
|
|
Apply a rule in a Layer 2 ACL
|
link-group acl-number rule rule-id
|
|
Apply all the rules in a user-defined ACL
|
user-group
acl-number
|
|
Apply a rule in a user-defined ACL
|
user-group acl-number rule rule-id
|
|
Apply a rule in an Layer 3 ACL and a rule
in a Layer 2 ACL
|
ip-group acl-number
rule rule-id link-group acl-number rule rule-id
|
Table 1-5 Description on the parameters used
in Table 1-4
|
Parameter
|
Description
|
|
ip-group acl-number
|
Specifies the number of a basic or
advanced ACL, in the range 2000 to 3999.
|
|
link-group acl-number
|
Specifies the number of a Layer 2 ACL, in
the range 4000 to 4999.
|
|
User-group acl-number
|
Specifies the number of a user-defined
ACL, in the range 5000 to 5999.
|
|
Rule-id
|
ACL rule number, in the range 0 to 65534.
If this argument is not provided, all the rules in the ACL are specified.
|
monitor-interface: Duplicates packets to the specified destination port (the monitor
port).
cpu:
Duplicates packets to the CPU.
Description
Use the mirrored-to command to configure
traffic mirroring.
Use the undo mirrored-to command to
cancel the configuration.
Traffic monitoring provides a finer
mirroring granularity than port mirroring, which mirrors all traffic passing through
a port. For detailed information about port mirroring, refer to the part
talking about mirroring.
Note that:
l
If you mirror traffic to the CPU, you do not
need to configure a monitor port.
l
If you mirror traffic to a port, you must
configure a monitor port with the mirroring-group monitor-port
command or the monitor-port command. For information about the two
commands, refer to the part talking about mirroring.
l
Traffic mirroring and local port mirroring share
the same monitor port.
Related commands: display qos-interface mirrored-to.
Examples
# Configure traffic mirroring on GigabitEthernet
1/0/1, duplicating the inbound packets sourced from IP address 1.1.1.1 to GigabitEthernet 1/0/4.
<Sysname> system-view
System View: return to User View with
Ctrl+Z.
[Sysname] acl number 2000
[Sysname-acl-basic-2000] rule permit
source 1.1.1.1 0
[Sysname-acl-basic-2000] quit
[Sysname] interface GigabitEthernet
1/0/4
[Sysname-GigabitEthernet1/0/4]
monitor-port
[Sysname-GigabitEthernet1/0/4] quit
[Sysname] interface GigabitEthernet
1/0/1
[Sysname-GigabitEthernet1/0/1] mirrored-to
inbound ip-group 2000 monitor-interface
[Sysname-GigabitEthernet1/0/1] quit
# Configure traffic mirroring on GigabitEthernet
1/0/2, duplicating the inbound packets matching ACL 2000 to the CPU.
[Sysname] interface GigabitEthernet
1/0/2
[Sysname-GigabitEthernet1/0/2] mirrored-to
inbound ip-group 2000 cpu
[Sysname-GigabitEthernet1/0/2] return
# Display the traffic mirroring
configuration of GigabitEthernet 1/0/1 and GigabitEthernet 1/0/2.
<Sysname> display qos-interface
GigabitEthernet 1/0/1 mirrored-to
GigabitEthernet1/0/1: mirrored-to
Inbound:
Matches: Acl 2000 rule 0 running
Mirrored to: monitor interface
<Sysname> display qos-interface
GigabitEthernet 1/0/2 mirrored-to
GigabitEthernet1/0/2: mirrored-to
Inbound:
Matches: Acl 2000 rule 0 running
Mirrored to: cpu
1.1.15 priority
Syntax
priority priority-level
undo priority
View
Ethernet port view
Parameters
priority-level: Port priority, ranging from 0 to 7.
Description
Use the priority command to configure
trusting port priority and set the priority of the port.
Use the undo priority command to restore
the default.
By default, port priority is trusted and the
priority of an Ethernet port is 0.
After you execute the priority command
on a port, the port priority rather than the 802.1p priority of each inbound
802.1q-tagged packet is used to identify the matching local precedence for the
packet (in the 802.1p-precedence-to-local precedence mapping table). Then, the
packet is assigned to the output queue corresponding to the local precedence.
If the priority command, the priority
trust command, and the undo priority command are configured on the
same port, the command configured the last applies.
Related commands: priority trust.
Examples
# Configure GigabitEthernet 1/0/1 to trust
its port priority and set the priority of GigabitEthernet 1/0/1 to 6.
<Sysname> system-view
System View: return to User View with
Ctrl+Z.
[Sysname] interface GigabitEthernet1/0/1
[Sysname-GigabitEthernet1/0/1]
priority 6
Syntax
priority trust
undo priority
View
Ethernet port view
Parameters
None
Description
Use the priority trust command to configure
the switch to trust the 802.1p priority of an inbound packet.
Use the undo priority command to restore
the default settings.
By default, port priority is trusted and
the priority of a port is 0.
After you execute the priority trust
command on a port, the 802.1p priority of each inbound 802.1q-tagged packet is
used to identify the matching local precedence for the packet (in the
802.1p-precedence-to-local precedence mapping table). Then, the packet is assigned
to the output queue corresponding to the local precedence.
If the priority command, the priority
trust command, and the undo priority command are configured on the
same port, the command configured the last applies.
Related commands: priority
