1.1 QoS
Command
Syntax
display mirroring-group { group-id | all | local | remote-destination
| remote-source }
View
Any view
Parameter
group-id:
Group number of a port mirroring group with a value of 1.
local:
Specifies to display the parameter settings of local port mirroring groups.
remote-destination: Specifies to display the parameter settings of the destination
groups for remote mirroring.
remote-source: Specifies to display the parameter settings of the source groups
for remote mirroring.
all:
Specifies to display the parameter settings of all mirroring groups.
Description
Use the display mirroring-group command
to display parameter settings of a mirroring group.
Local mirroring group information includes:
l
Group number
l
Group type: local
l
Group state
l
Source port information
l
Destination port information
Remote destination mirroring group
information includes:
l
Group number
l
Group type: remote-destination
l
Group state
l
Destination port information
l
remote-probe vlan information
Remote source mirroring group information
includes:
l
Group number
l
Group type: remote-source
l
Group state
l
Source port information
l
Reflector port information
l
Remote-probe VLAN information
Example
# Display parameter settings of a mirroring
group.
<H3C> display mirroring-group
all
mirroring-group 1:
type: local
status: active
mirroring port:
Ethernet1/0/1 inbound
monitor port: Ethernet1/0/2
Syntax
display qos cos-local-precedence-map
View
Any view
Parameter
None
Description
Use the display qos cos-local-precedence-map
command to display the “802.1p priority -> local precedence queue”
mapping table.
Example
# Display the “802.1p priority ->
local precedence queue” mapping table.
<H3C> display qos cos-local-precedence-map
cos-local-precedence-map:
cos(802.1p) :
0 1 2 3 4 5 6 7
--------------------------------------------------------------------------
local precedence(queue) :
1 0 0 1 2 2 3 3
Syntax
display qos dscp-local-precedence-map
View
Any view
Parameter
None
Description
Use the display qos dscp-local-precedence-map
command to display the “DSCP precedence -> local precedence queue”
mapping table.
Example
# Display the “DSCP precedence ->
local precedence queue” mapping table.
<H3C> display qos dscp-local-precedence-map
dscp-local-precedence-map:
dscp :
local-precedence(queue)
----------------------------------------------
0 : 0
1 : 0
2 : 0
3 : 0
4 : 0
5 : 0
6 : 0
7 : 0
8 : 0
9 : 0
10 : 0
11 : 0
12 : 0
13 : 0
14 : 0
15 : 0
16 : 1
17 : 1
18 : 1
19 : 1
20 : 1
21 : 1
22 : 1
23 : 1
24 : 1
25 : 1
26 : 1
27 : 1
28 : 1
29 : 1
30 : 1
31 : 1
32 : 2
33 : 2
34 : 2
35 : 2
36 : 2
37 : 2
38 : 2
39 : 2
40 : 2
41 : 2
42 : 2
43 : 2
44 : 2
45 : 2
46 : 2
47 : 2
48 : 3
49 : 3
50 : 3
51 : 3
52 : 3
53 : 3
54 : 3
55 : 3
56 : 3
57 : 3
58 : 3
59 : 3
60 : 3
61 : 3
62 : 3
63 : 3
Syntax
display qos ip-precedence-local-precedence-map
View
Any view
Parameter
None
Description
Use the display qos ip-precedence-local-precedence-map
command to display the “IP precedence -> local precedence queue”
mapping table.
Example
# Display the “IP precedence ->
local precedence queue” mapping table.
<H3C> display qos ip-precedence-local-precedence-map
ip-precedence-local-precedence-map:
ip-precedence : 0 1
2 3 4 5 6 7
--------------------------------------------------------------------------
local-precedence(queue) : 0 0
1 1 2 2 3 3
Syntax
display qos-interface { interface-type interface-number | unit-id } all
View
Any view
Parameter
interface-type interface-number: Port on a switch.
unit-id:
Unit ID of the switch. It can only be 1.
Description
Use the display qos-interface all
command to display all QoS settings of a port.
If the interface-type interface-number arguments
are not provided, the QoS settings of all the ports are displayed.
Displayed information includes:
l
Line-rate limit on a port.
l
Queue scheduling settings: Specifies the adopted
queue scheduling mode and weights of queues.
Example
# Display all QoS settings of
Ethernet1/0/1.
<H3C> display qos-interface
ethernet1/0/1 all
Ethernet1/0/1: line-rate
Inbound: 128 Kbps
Ethernet1/0/1:
Queue scheduling mode: weighted
round robin
weight of queue 0: 2
weight of queue 1: 3
weight of queue 2: 4
weight of queue 3: 5
Syntax
display qos-interface { interface-type interface-number | unit-id } line-rate
View
Any view
Parameter
interface-type interface-number: Port on a switch.
unit-id:
Unit ID of the switch. It can only be 1.
Description
Use the display qos-interface line-rate
command to display line-rate limit settings.
If the interface-type interface-number arguments
are not provided, the line-rate limit settings of all the ports are displayed.
Displayed information includes:
l
The port(s) with line-rate limit enabled.
l
Direction and value of line-rate limit.
Example
# Display line-rate limit settings of Ethernet1/0/1.
<H3C> display qos-interface 1
line-rate
Ethernet1/0/1: line-rate
Inbound: 128 kbps
Syntax
display queue-scheduler
View
Any view
Parameter
None
Description
Use the display queue-scheduler command
to display the queue scheduling mode and parameters.
Displayed information includes:
l
Adopted queue scheduling mode.
l
Weights of queues.
Related command: queue-scheduler.
Example
# Display the queue scheduling mode and
parameters.
<H3C> 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
Syntax
line-rate {
inbound | outbound } target-rate
undo line-rate{ inbound | outbound }
View
Ethernet port view
Parameter
inbound: Applies
line-rate limit to inbound packets on a given port.
outbound: Applies
line-rate limit to outbound packets on a given port.
target-rate:
Total rate (in kbps) to limit both the inbound and outbound packets on the
port, with the granularity of rate limit being 64 kbps. If the number you input
is in the range of N*64 to (N+1)*64 (N is a natural number), the switch will
set the value to (N+1)*64 kbps automatically. The target rate range for fast
Ethernet ports and Gigabit Ethernet ports are:
l
Fast Ethernet port: 64 to 99,968
l
Gigabit Ethernet port: 64 to 1,000,000
Description
Use the line-rate command to set
line-rate limit to inbound or outbound packets for a given port.
Use the undo line-rate command to
cancel line-rate limit configurations of the port.
Example
# Set the line-rate limit for inbound
packets on Ethernet1/0/1 to 128 kbps.
<H3C> system-view
System View: return to User View with
Ctrl+Z.
[H3C] interface Ethernet1/0/1
[H3C-Ethernet1/0/1] line-rate inbound
128
Syntax
mirroring-group group-id { local | remote-destination
| remote-source }
undo mirroring-group { group-id | all | local | remote-destination
| remote-source }
View
System view
Parameter
group-id:
Group number of the mirroring group with a value of 1.
local: Specifies
the mirroring group with group number as group-id to be the local port
mirroring group.
remote-destination: Specifies the mirroring group with group number as group-id
to be the remote destination mirroring group
remote-source: Specifies the mirroring group with group number as group-id to
be the remote source mirroring group.
All: Deletes
all mirroring group parameter settings, which means deleting all mirroring
groups.
Description
Use the mirroring-group command to
configure a mirroring group.
Use the undo mirroring-group command
to delete a mirroring group configuration.
Example
# Configure a local mirroring group.
<H3C> system-view
System View: return to User View with
Ctrl+Z.
[H3C] mirroring-group 1 local
Syntax
mirroring-group group-id mirroring-port mirroring-port-list { both | inbound | outbound }
undo mirroring-group group-id mirroring-port mirroring-port-list { both | inbound | outbound }
View
System view, Ethernet port view
Parameter
group-id:
Group number of the mirroring group with a value of 1.
mirroring-port mirroring-port-list: Specifies a list
of source ports. mirroring-port-list is available in system view only,
but not in Ethernet port view.
both:
Mirrors packets both received and sent via the port.
inbound: Indicates
that only inbound packets on a given port are monitored.
outbound: Indicates
that only outbound packets on a given port are monitored.
Description
Use the mirroring-group mirroring-port
command to configure the source port. Use the undo mirroring-group
mirroring-port command to delete source port settings.
Example
# Set Ethernet1/0/1 as the source port and
configure to have all its inbound packets monitored.
<H3C> system-view
System View: return to User View with
Ctrl+Z.
[H3C] mirroring-group 1 local
[H3C] mirroring-group 1
mirroring-port Ethernet1/0/1 inbound
Syntax
mirroring-group group-id monitor-port monitor-port
undo mirroring-group group-id monitor-port monitor-port
View
System view
Parameter
group-id:
Group number of the mirroring group with a value of 1.
monitor-port monitor-port: Specifies the destination
port. monitor-port is available in system view only, but not in Ethernet
port view.
Description
Use the mirroring-group monitor-port
command to configure the destination port.
Use the undo mirroring-group monitor-port
command to cancel destination port settings.
Note the following when you configure the
destination port:
l
LACP must be disabled on the destination port.
l
The destination port for remote mirroring must
be an Access port.
l
After a port is configured as a reflector port,
the switch does not allow you to change the port type and its default VLAN ID.
Example
# Set Ethernet1/0/2 as the destination port
of the mirroring group 1.
<H3C> system-view
System View: return to User View with
Ctrl+Z.
[H3C] mirroring-group 1 local
[H3C] mirroring-group 1 monitor-port
Ethernet1/0/2
Syntax
mirroring-group group-id reflector-port reflector-port
undo mirroring-group group-id reflector-port reflector-port
View
System view
Parameter
group-id:
Group number of the port mirroring group with a value of 1.
reflector-port reflector-port: Specifies the reflector
port. reflector-port is available in system view only, but not in
Ethernet port view.
Description
Use the mirroring-group reflector-port
command to set the reflector port.
Use the undo mirroring-group reflector-port
command to cancel the reflector port settings.
Note the following when you configure the
reflector port:
l
The reflector port must be an Access port.
l
LACP must be disabled on the reflector port.
l
After a port is configured as a reflector port,
the switch does not allow you to change the port type and its default VLAN ID,
or to add it to another VLAN.
Example
# Set Ethernet1/0/1 as the reflector port
of the mirroring group 1.
<H3C> system-view
System View: return to User View with
Ctrl+Z.
[H3C] mirroring-group 1 remote-source
[H3C] mirroring-group 1
reflector-port Ethernet1/0/1
Syntax
mirroring-group group-id remote-probe vlan remote-probe-vlan-id
undo mirroring-group group-id remote-probe vlan remote-probe-vlan-id
View
System view
Parameter
group-id:
Group number of the mirroring group with a value of 1.
remote-probe vlan remote-probe-vlan-id:
Specifies the remote-probe VLAN for the mirroring group.
Description
Use the mirroring-group remote-probe vlan
command to specify the remote-probe VLAN of a mirroring group.
Use the undo mirroring-group
remote-probe vlan command to cancel the remote-probe VLAN configuration of a
mirroring group.
Example
# Set VLAN 100 as the remote-probe VLAN of the
mirroring group 1.
<H3C> system-view
System View: return to User View with
Ctrl+Z.
[H3C] mirroring-group 1 remote-source
[H3C] mirroring-group 1 remote-probe vlan
100
Syntax
mirroring-port { inbound | outbound | both }
undo mirroring-port
View
Ethernet port view
Parameter
inbound: Monitors
only inbound packets on a given port.
outbound: Monitors
only outbound packets on a given port.
both: Monitors
both inbound and outbound packets on a given port.
Description
Use the mirroring-port command to
configure the source port.
Use the undo mirroring-port command
to remove the source port settings.
Note that this command is available to only
the local mirroring group.
Example
# Set Ethernet1/0/1 as the source port, on
which both inbound and outbound packets are monitored.
<H3C> system-view
System View: return to User View with
Ctrl+Z.
[H3C] mirroring-group 1 local
[H3C] interface Ethernet1/0/1
[H3C-Ethernet1/0/1] mirroring-port
both
Syntax
monitor-port
undo monitor-port
View
Ethernet port view
Parameter
None
Description
Use the monitor-port command to set destination
port.
Use the undo monitor-port command to
cancel the destination port settings.
Note that this command is available to only
the local mirroring group.
S3100-SI switch series support
multiple-to-one port monitoring. That is, packets on multiple source ports can
be copied into one destination port.
Example
Sets Ethernet1/0/1 as the destination port of
the mirroring group 1.
<H3C> system-view
System View: return to User View with
Ctrl+Z.
[H3C] mirroring-group 1 local
[H3C] interface Ethernet1/0/1
[H3C-Ethernet1/0/1] monitor-port
Syntax
priority priority-level
undo priority
View
Ethernet port view
Parameter
priority-level: Specifies port priority, in the range of 0 to 7.
Description
Use the priority command to set
Ethernet port priority.
Use the undo priority command to revert
to the default settings.
By default, the switch replaces 802.1p
priority of inbound packets with port priority.
Example
# Set the port priority of Ethernet1/0/1 to
6.
<H3C> system-view
System View: return to User View with
Ctrl+Z.
[H3C] interface Ethernet1/0/1
[H3C-Ethernet1/0/1] priority 6
Syntax
priority trust
undo priority
View
System view
Parameter
None
Description
Use the priority trust command to
configure a switch not to replace 802.1p priority of inbound packets with port priority.
Use the undo priority command to
restore the default settings.
By default, a switch replaces 802.1p
priority of inbound packets with port priority.
Example
# Configure the switch to use 802.1p
priority of the inbound packets.
<H3C> system-view
System View: return to User View with
Ctrl+Z.
[H3C] priority trust
Syntax
priority-trust { cos | dscp | ip-precedence }
View
System view
Parameter
cos: Puts
packets into the proper output queue based on 802.1p priority.
dscp: Puts
packets into the proper output queue based on DSCP precedence.
ip-precedence: Puts packets into the proper output queue based on IP precedence.
Description
Use the priority-trust command to
specify the priority policy used by the switch in packet queuing.
By default, a switch uses 802.1p priority.
You can also specify some other priority
for the switch to use for queue scheduling.
A port supports four output queues, into
which a switch puts packets based on one of the following:
DSCP precedence: Ranges from 0 to 63. By
default, packets with DSCP values from 1 to 15 are put into queue 0, those from
16 to 31 in queue 1, from 32 to 47 in queue 2, and from 48 to 63 in queue 3.
CoS priority: Ranges from 0 to 7. By
default, packets with CoS priority level 1 or 2 are put into queue 0, those
with 0 or 3 in queue 1, with 4 or 5 in queue 2, and with 6 or 7 in queue 3.
IP precedence: Ranges from 0 to 7. By
default, packets with IP precedence level 0 or 1 are put into queue 0, those
with 2 or 3 in queue 1, with 4 or 5 in queue 2, and with 6 or 7 in queue 3.
Users can choose a queuing policy that best
meets their needs.
Example
# Configure to use DSCP precedence.
<H3C> system-view
System View: return to User View with
Ctrl+Z.
[H3C] priority-trust dscp
Syntax
qos cos-local-precedence-map
cos0-map-local-prec cos1-map-local-prec cos2-map-local-prec
cos3-map-local-prec cos4-map-local-prec cos5-map-local-prec cos6-map-local-prec
cos7-map-local-prec
undo qos cos-local-precedence-map
View
System view
Parameter
cos0-map-local-prec: Maps CoS 0 to a local precedence entry (ranging
from 0 to 3).
cos1-map-local-prec: Maps CoS 1 to a local precedence entry (ranging
from 0 to 3)
cos2-map-local-prec: Maps CoS 2 to a local precedence entry (ranging
from 0 to 3)..
cos3-map-local-prec: Maps CoS 3 to a local precedence entry (ranging
from 0 to 3)..
cos4-map-local-prec: Maps CoS 4 to a local precedence entry (ranging
from 0 to 3)..
cos5-map-local-prec: Maps CoS 5 to a local precedence entry (ranging
from 0 to 3)..
cos6-map-local-prec: Maps CoS 6 to a local precedence entry (ranging
from 0 to 3)..
cos7-map-local-prec: Maps CoS 7 to a local precedence entry (ranging
from 0 to 3)..
Description
Use the qos cos-local-precedence-map
command to configure an “802.1p priority -> local precedence
queue” mapping table.
Use the undo
qos cos-local-precedence-map command to revert to the default “802.1p
priority -> local precedence queue” mapping table.
By default, the system uses the default
“802.1p priority -> local precedence queue” mapping table.
Table 1-1 The default “802.1p
priority -> local precedence queue” mapping table
|
802.1p priority
|
Local precedence queue
|
|
0
|
1
|
|
1
|
0
|
|
2
|
0
|
|
3
|
1
|
|
4
|
2
|
|
5
|
2
|
|
6
|
3
|
|
7
|
3
|
Example
# Configure the “802.1p priority
-> local precedence queue” mapping table.
[H3C] qos cos-local-precedence-map 0 0
1 1 2 2 3 3
The completed mapping table is as follows:
Table 1-2 “802.1p priority ->
local precedence queue” mapping table
|
802.1p priority
|
Local precedence queue
|
|
0
|
0
|
|
1
|
0
|
|
2
|
1
|
|
3
|
1
|
|
4
|
2
|
|
5
|
2
|
|
6
|
3
|
|
7
|
3
|
Syntax
qos dscp-local-precedence-map
dscp-list : local-precedence
undo qos dscp-local-precedence-map
dscp-list
View
System view
Parameter
dscp-list:
List of DSCP values. It can include only one DSCP value or many DSCP values.
DSCP values are separated by space. dscp-list is connected with local-precedence
by the “:” after it to indicate the mapping relationship
between them. The range of dscp-list is from 0 to 63.
local-precedence: Local precedence with a value range of 0 to 3.
Description
Use the qos dscp-local-precedence-map
command to configure a “DSCP precedence -> local precedence
queue” mapping table.
Use the undo qos dscp-local-precedence-map command to revert to
the default “DSCP precedence -> local precedence queue” mapping
table.
By default, the “DSCP precedence
-> local precedence queue” mapping table is used, which is shown as
follows:
Table 1-3 The default “DSCP
precedence -> local precedence queue” mapping table
|
DSCP precedence
|
Local precedence queue
|
|
0–15
|
0
|
|
16–31
|
1
|
|
32–47
|
2
|
|
48–63
|
3
|
Example
# Configure a “DSCP precedence -> local precedence queue” mapping table that
maps DSCP values 0 through 7 to the local precedence queue 2.
<H3C> system-view
System View: return to User View with
Ctrl+Z.
[H3C] qos dscp-local-precedence-map 0
1 2 3 4 5 6 7 : 2
Syntax
qos ip-precedence-local-precedence-map
ip-pre0-map-local-prec ip-pre1-map-local-prec ip-pre2-map-local-prec
ip-pre3-map-local-prec ip-pre4-map-local-prec ip-pre5-map-local-prec
ip-pre6-map-local-prec ip-pre7-map-local-prec
undo qos ip-precedence-local-precedence-map
View
System view
Parameter
ip-pre0-map-local-prec: Maps IP precedence 0 to a local precedence
entry (ranging from 0 to 3).
ip-pre1-map-local-prec: Maps IP precedence 1 to a local precedence
entry (ranging from 0 to 3).
ip-pre2-map-local-prec: Maps IP precedence 2 to a local precedence
entry (ranging from 0 to 3).
ip-pre3-map-local-prec: Maps IP precedence 3 to a local precedence
entry (ranging from 0 to 3).
ip-pre4-map-local-prec: Maps IP precedence 4 to a local precedence
entry (ranging from 0 to 3).
ip-pre5-map-local-prec: Maps IP precedence 5 to a local precedence
entry (ranging from 0 to 3).
ip-pre6-map-local-prec: Maps IP precedence 6 to a local precedence
entry (ranging from 0 to 3).
ip-pre7-map-local-prec: Maps IP precedence 7 to a local precedence
entry (ranging from 0 to 3).
Description
Use the qos ip-precedence-local-precedence-map
command to configure an “IP precedence -> local precedence
queue” mapping table.
Use the undo qos ip-precedence-local-precedence-map
command to revert to the default “IP precedence -> local
precedence queue” mapping table.
By default, the “IP precedence ->
local precedence queue” mapping table is used.
Table 1-4 The default “IP
precedence -> local precedence queue” mapping table
|
IP precedence IP
|
Local precedence queue
|
|
0
|
0
|
|
1
|
0
|
|
2
|
1
|
|
3
|
1
|
|
4
|
2
|
|
5
|
2
|
|
6
|
3
|
|
7
|
3
|
Example
# Configure an “IP precedence ->
local precedence queue” mapping table.
<H3C> system-view
System View: return to User View with
Ctrl+Z.
[H3C] qos ip-precedence-local-precedence-map
3 3 2 2 1 1 0 0
Syntax
queue-scheduler { hq-wrr queue0-weight queue1-weight queue2-weight | wrr
queue0-weight queue1-weight queue2-weight queue3-weight }
undo queue-scheduler
View
System view
Parameter
hq-wrr queue0-weight
queue1-weight queue2-weight: Indicates that the
HQ-WRR (High Queue-WRR) queue scheduling mode is used. queue0-weight, queue1-weight,
and queue2-weight refer to the weight of queue 0, 1 and 2
respectively, all ranging from 1 to 15.
wrr queue0-weight
queue1-weight queue2-weight queue3-weight: Indicates
that the WRR (Weight Round Robin) queue scheduling mode is used. queue0-weight,
queue1-weight, queue2-weight, and queue3-weight refer to the
weights of queues 0 to 3 respectively, all ranging from 1 to 15.
Description
Use the queue-scheduler command to
set the queue scheduling algorithm.
Use the undo queue-scheduler command
to revert to the default queue scheduling algorithm.
By default, the WRR algorithm is used,
which sets weights for queue 0 to queue 3 as 1 to 4 respectively.
Each port of the switch supports four
output queues.
The WRR algorithm works as follows:
Each queue is assigned with a weight value
(w0, w1, w2 and w3 corresponding to the four queues), which indicates the
proportions of source allocated to each queue. For example, weight values for
queues 0 to 3 are set as 1, 2, 4 and 8 (corresponding to w0, w1, w2 and w3)
respectively. In this case, when data traffic of the four output queues on the
port exceeds the port processing capability, the switch will perform weight
round robin on the queues, based on the allocated proportion of 1:2:4:8. That
is to say, among every 15 packets sent by the switch, 1 packet is put into
queue 0, 2 into queue 1, 4 into queue 2 and 8 into queue 3.
With the HQ-WRR algorithm, queue 3 is allocated
with the highest priority. When data traffic of the four output queues on the
port exceeds the port processing capability, packets in queue 3 will be sent
first, and then WRR algorithm is used on the rest three queues.
Related command: display queue-scheduler.
Example
# Set WRR as the queue scheduling
algorithm.
<H3C> system-view
System View: return to User View with
Ctrl+Z.
[H3C] queue-scheduler wrr 1 2 4 8
Syntax
remote-probe
vlan enable
undo remote-probe vlan enable
View
VLAN view
Parameter
None
Description
Use the remote-probe vlan enable
command to set the current VLAN as a remote-probe VLAN.
Use the undo remote-probe vlan enable
command to delete the remote-probe VLAN settings for the current VLAN.
After you use the command, the system will
check if the current VLAN is a dynamic VLAN. If yes, the system fails in
execution the command and prompts “Can not set dynamic VLAN as
remote-probe VLAN!”.
Example
# Configure VLAN 5 to be the remote-probe vlan.
<H3C> system-view
System View: return to User View with
Ctrl+Z.
[H3C] vlan 5
[H3C-vlan5] remote-probe vlan enable
