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- 08-ACL and QoS Configuration Examples
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Software version: Release 7577P04
Document version: 6W100-20190330
This document provides GTS and rate limiting configuration examples.
The configuration examples in this document were created and verified in a lab environment, and all the devices were started with the factory default configuration. When you are working on a live network, make sure you understand the potential impact of every command on your network.
This document assumes that you have basic knowledge of GTS and rate limiting.
As shown in Figure 1, the 15-Mbps dedicated line transmits the FTP traffic, business-specific application traffic, and IP voice traffic between the headquarters and branch of a company.
The following traffic policing settings have been configured on the edge device (Device B) of the headquarters:
· CIR of 10 Mbps for IP voice traffic.
· CIR of 3 Mbps for business-specific application traffic.
· CIR of 7 Mbps for FTP traffic.
Configure traffic shaping on the edge device (Device A) of the branch to buffer excess traffic of each traffic type.
Configure rate limiting on Device A to limit the outgoing traffic rate to 15 Mbps.
To meet the network requirements, you must perform the following tasks:
· To implement GTS, first determine the queue that transmits a type of traffic. In this example, the priorities of these types of traffic are not provided. You need to use priority marking to manually assign packets to different queues.
· You can manually assign packets to queues by marking DSCP values, 802.1p priority values, or local precedence values. To keep the contents of packets unchanged, mark local precedence values for packets.
Before configuring GTS and rate limiting, make sure there is network connectivity between the branch and headquarters.
This section does not describe the configurations for enabling network connectivity.
1. Create three traffic classes to match the three traffic types:
# Configure basic IPv4 ACL 2000 to match IP voice traffic (traffic from subnet 192.168.3.0/24).
[DeviceA] acl basic 2000
[DeviceA-acl-ipv4-basic-2000] rule permit source 192.168.3.0 0.0.0.255
# Create a class named voice, and use ACL 2000 as the match criterion.
[DeviceA] traffic classifier voice
[DeviceA-classifier-voice] if-match acl 2000
# Configure basic IPv4 ACL 2001 to match application traffic (traffic from subnet 192.168.2.0/24).
[DeviceA] acl basic 2001
[DeviceA-acl-ipv4-basic-2001] rule permit source 192.168.2.0 0.0.0.255
# Create a class named service, and use ACL 2001 as the match criterion.
[DeviceA] traffic classifier service
[DeviceA-classifier-service] if-match acl 2001
# Configure advanced IPv4 ACL 3000 to match FTP traffic (traffic from subnet 192.168.1.0/24 and with destination port number 20).
[DeviceA] acl advanced 3000
[DeviceA-acl-ipv4-adv-3000] rule permit tcp destination-port eq 20 source 192.168.1.0 0.0.0.255
# Create a class named ftp, and use ACL 3000 as the match criterion.
[DeviceA] traffic classifier ftp
[DeviceA-classifier-ftp] if-match acl 3000
2. Create three traffic behaviors:
# Create a behavior named voice, and configure the behavior to mark packets with local precedence 6 (corresponding to queue 6).
[DeviceA] traffic behavior voice
[DeviceA-behavior-voice] remark local-precedence 6
# Create a behavior named service, and configure the behavior to mark packets with local precedence 4 (corresponding to queue 4).
[DeviceA] traffic behavior service
[DeviceA-behavior-service] remark local-precedence 4
# Create a behavior named ftp, and configure the behavior to mark packets with local precedence 2 (corresponding to queue 2).
[DeviceA] traffic behavior ftp
[DeviceA-behavior-ftp] remark local-precedence 2
3. Configure and apply a QoS policy:
# Create a QoS policy named shaping, and associate the three classes with their respective behaviors in the QoS policy.
[DeviceA] qos policy shaping
[DeviceA-qospolicy-shaping] classifier voice behavior voice
[DeviceA-qospolicy-shaping] classifier service behavior service
[DeviceA-qospolicy-shaping] classifier ftp behavior ftp
# Apply the QoS policy shaping to the inbound direction of Ten-GigabitEthernet 1/0/2.
[DeviceA] interface Ten-GigabitEthernet 1/0/2
[DeviceA-Ten-GigabitEthernet1/0/2] qos apply policy shaping inbound
# Configure GTS on Ten-GigabitEthernet 1/0/1 to set the CIR to 10 Mbps for queue 6 (IP voice traffic).
[DeviceA] interface Ten-GigabitEthernet 1/0/1
[DeviceA-Ten-GigabitEthernet1/0/1] qos gts queue 6 cir 10240
# Configure GTS on Ten-GigabitEthernet 1/0/1 to set the CIR to 3 Mbps for queue 4 (application traffic).
[DeviceA-Ten-GigabitEthernet1/0/1] qos gts queue 4 cir 3072
# Configure GTS on Ten-GigabitEthernet 1/0/1 to set the CIR to 7 Mbps for queue 2 (FTP traffic).
[DeviceA-Ten-GigabitEthernet1/0/1] qos gts queue 2 cir 7168
# Configure rate limiting on Ten-GigabitEthernet 1/0/1 to set the CIR to 15 Mbps for outgoing traffic.
[DeviceA-Ten-GigabitEthernet1/0/1] qos lr outbound cir 15360
# Verify the priority marking settings of Ten-GigabitEthernet 1/0/2.
<Device> display qos policy interface inbound
If-match acl 2000
Remark local-precedence 6
If-match acl 2001
Remark local-precedence 4
If-match acl 3000
Remark local-precedence 2
# Verify the GTS settings on Ten-GigabitEthernet 1/0/1.
<Device> display qos gts interface
Rule: If-match queue 6
CIR 10240 (kbps), CBS 640000 (Bytes)
Rule: If-match queue 4
CIR 3072 (kbps), CBS 192000 (Bytes)
Rule: If-match queue 2
CIR 7168 (kbps), CBS 448000 (Bytes)
# Verify the rate limiting settings on Ten-GigabitEthernet 1/0/1.
<Device> display qos lr interface
CIR 15360 (kbps), CBS 960000 (Bytes)
acl basic 2000
rule 0 permit source 192.168.3.0 0.0.0.255
acl basic 2001
rule 0 permit source 192.168.2.0 0.0.0.255
acl advanced 3000
rule 0 permit tcp source 192.168.1.0 0.0.0.255 destination-port eq ftp-data
traffic classifier ftp operator and
if-match acl 3000
traffic classifier service operator and
if-match acl 2001
traffic classifier voice operator and
if-match acl 2000
traffic behavior ftp
remark local-precedence 2
traffic behavior service
remark local-precedence 4
traffic behavior voice
remark local-precedence 6
qos policy shaping
classifier voice behavior voice
classifier service behavior service
classifier ftp behavior ftp
port link-mode bridge
qos lr outbound cir 15360 cbs 960000
qos gts queue 6 cir 10240 cbs 640000
qos gts queue 4 cir 3072 cbs 192000
qos gts queue 2 cir 7168 cbs 448000
port link-mode bridge
qos apply policy shaping inbound
· H3C S7500E Switch Series ACL and QoS Configuration Guide-R757X
· H3C S7500E Switch Series ACL and QoS Command Reference-R757X