3Com 5500-EI PWR Reference Manual page 781

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 Ethernet 1/0/1 and provide 32 KB of buffer
for burst traffic.
<Sysname> system-view
System View: return to User View with Ctrl+Z.
[Sysname] interface Ethernet1/0/1
[Sysname-Ethernet1/0/1] line-rate inbound 128 burst-bucket 32
# Display the line rate configuration of Ethernet 1/0/1.
[Sysname-Ethernet1/0/1] display qos-interface Ethernet 1/0/1 line-rate
Ethernet1/0/1: line-rate
Inbound: 128 Kbps
Burst bucket size: 32 Kbyte
mirrored-to
Syntax
mirrored-to { inbound | outbound } acl-rule { monitor-interface | cpu }
undo mirrored-to { inbound | outbound } acl-rule
View
Ethernet port view
Parameters
inbound: Duplicates inbound packets.
outbound: Duplicates outbound 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
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
Apply a basic or advanced Layer 3 ACL
Apply a rule in an Layer 3 ACL
Apply all the rules in a Layer 2 ACL
Apply a rule in a Layer 2 ACL
Apply all the rules in a user-defined ACL
ACL combination Form of the acl-rule argument
ip-group acl-number
ip-group acl-number rule rule-id
link-group acl-number
link-group acl-number rule rule-id
user-group acl-number
1-13
Table 1-4 and Table