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S3700HI Ethernet Switches
Configuration Guide - QoS
l To define matching rules based on the DSCP priority of IP packets, run:
l To define matching rules based on the IP priority of IP packets, run:
l To define matching rules based on the Layer 3 protocol type, run:
l To define matching rules based on the SYN Flag field of TCP packets, run:
----End
Creating a Traffic Classifier Based on an ACL
After traffic classification based on an ACL is configured, the S3700 classifies packets based
on the ACL.
Context
The S3700 can use an ACL to classify packets based on the IP quintuple.
The S3700 supports basic ACLs, Layer 2 ACLs, user-defined ACLs and advanced ACLs:
l
l
l
l
Procedure
l
Issue 01 (2012-03-15)
if-match dscp dscp-value &<1-8>
if-match ip-precedence ip-precedence-value &<1-8>
NOTE
In a traffic classifier where the relationship between rules is AND, the if-match dscp and if-match ip-
precedence commands cannot be used simultaneously.
if-match protocol
{ ip | ipv6 }
if-match tcp syn-flag { syn-flag-value | ack | fin | psh | rst | syn | urg }
Basic ACLs are used to classify data packets based on the source IP address, fragmentation
flag, and time segment of packets.
Advanced ACLs are used to classify and define data packets based on the source IP address,
destination IP address, source port number, destination port number, fragmentation flag,
time segment, and protocol type of packets.
Layer 2 ACLs are used to classify data packets based on the source MAC address and
destination MAC address of packets.
User-defined ACLs process data packets according to the rules defined by users.
Creating a traffic classifier based on a basic ACL
1.
Run:
system-view
The system view is displayed.
2.
Run:
acl [ ipv6 ] basic-acl-number
A basic ACL is created and the ACL view is displayed.
Or, run:
acl [ ipv6 ] name acl-name basic
A named ACL is created and ACL view is displayed.
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1 Class-based QoS Configuration
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