User's Manual 176 Document #: LTRT-89730
Mediant 3000
Parameter Description
Note: When filtering fragmented IP packets, this field relates to the
overall (re-assembled) packet size, and not to the size of each
fragment.
Byte Rate
[AccessList_Byte_Rate]
Defines the expected traffic rate (bytes per second), i.e., the allowed
bandwidth for the specified protocol. In addition to this field, the 'Burst
Bytes' field provides additional allowance such that momentary bursts
of data may utilize more than the defined byte rate, without being
interrupted.
For example, if 'Byte Rate' is set to 40000 and 'Burst Bytes' to 50000,
then this implies the following: the allowed bandwidth is 40000
bytes/sec with extra allowance of 50000 bytes; if, for example, the
actual traffic rate is 45000 bytes/sec, then this allowance would be
consumed within 10 seconds, after which all traffic exceeding the
allocated 40000 bytes/sec is dropped. If the actual traffic rate then
slowed to 30000 bytes/sec, then the allowance would be replenished
within 5 seconds.
Burst Bytes
[AccessList_Byte_Burst]
Defines the tolerance of traffic rate limit (number of bytes).
The default is 0.
Action Upon Match
[AccessList_Allow_Type]
Defines the firewall action to be performed upon rule match.
 "Allow" = (Default) Permits these packets
 "Block" = Rejects these packets
Match Count
[AccessList_MatchCount]
(Read-only) Displays the number of packets accepted or rejected by
the rule.
The table below provides an example of configured firewall rules:
Table 14-2: Configuration Example of Firewall Rules
Parameter
Firewall Rule
1 2 3 4 5
Source IP
12.194.231.7
6
12.194.230.7 0.0.0.0 192.0.0.0 0.0.0.0
Prefix Length
16 16 0 8 0
Start Port and End
Port
0-65535 0-65535 0-65535 0-65535 0-65535
Protocol
Any Any icmp Any Any
Use Specific
Interface
Enable Enable Disable Enable Disable
Interface Name
WAN WAN None Voice-Lan None
Byte Rate
0 0 40000 40000 0
Burst Bytes
0 0 50000 50000 0
Action Upon Match
Allow Allow Allow Allow Block
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