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3Com Switch 7750 Series
Command Reference Guide – ACL Chapter 1 ACL Commands
1-22
Table 1-15 Rule information
Parameter Type Function Description
format-type
Link layer
encapsulation
type
Defines the link
layer
encapsulation
type in the rule
format-type: the value can be
802.3/802.2, 802.3, ether_ii,
or snap.
lsap lsap-code
lsap-wildcard
lsap field
Defines the lsap
field in the rule
lsap-code: the encapsulation
format of data frames, a
16-bit hexadecimal number
lsap-wildcard: mask of the
lsap value, a 16-bit
hexadecimal number used to
specify the mask bit
source
{ source-addr
source-mask |
vlan-id }*
Source MAC
address
information
Specifies the
source MAC
address range
in the rule
source-addr: source MAC
address, in the format of
H-H-H
source- mask: source MAC
address mask, in the format
of H-H-H
vlan-id: source VLAN ID, in
the range of 1 to 4,094
dest dest-addr
dest-mask
Destination
MAC address
information
Specifies the
destination MAC
address range
in the rule
dest-addr: destination MAC
address, in the format of
H-H-H
dest- mask: destination MAC
address mask, in the format
of H-H-H
cos vlan-pri Priority
Defines the
802.1p priority
of the rule
vlan-pri: VLAN priority, in the
range of 0 to 7
time-range
time-name
Time range
information
Specifies the
time range in
which the rule is
active
time-name: specifies the
name of the time range in
which the rule is active; a
string of 1 to 32 characters
type
protocol-type
protocol-mask
Protocol type
of Ethernet
frames
Defines the
protocol type of
Ethernet frames
protocol-type: protocol type
protocol-mask: protocol type
mask
Note:
ARP packets are allowed to pass by default on the Switch 7750. You cannot use the
packet-filter command to filter ARP packets, even though you have used the rule
command to define a Layer 2 ACL, in which the argument protocol is defined as ARP.