Huawei MA5600 Manual page 8

MSAN UA5000 Cases Chapter 1 MA5600 Cases
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PortID Broadcast_index Multicast_index Unicast_index
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0 OFF -- 7
1 7 -- 7
2 7 -- 7
3 7 -- 7
4 7 -- 7
5 7 -- 7
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Min bandwidth (kbit/s): Indicates the minimum bandwidth. If the minimum length of each
packet is 64 bytes and 12 packets are allowed to be transmitted per second (for example), the
minimum bandwidth is calculated as 64B x 8b x 12 ÷ 1000 = 6 kbit/s.
Max bandwidth (kbit/s): Indicate the maximum bandwidth. If the maximum length of each
packet is 1518 bytes and 12 packets are allowed to be transmitted per second (for example), the
maximum bandwidth is calculated as 1518B x 8b x 12 ÷ 1000 = 145 kbit/s.
Package number (pps): Indicates the number of the packets that are allowed to transmit per
second through the port.
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PortID Broadcast_index Multicast_index Unicast_index
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2 OFF -- 7
3 OFF -- 7
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Index: Profile index
"OFF": Indicates that the packets are transparently transmitted with no suppression. Run the
undo traffic-suppress command to configure the suppression.
"—": Indicates that the "IGMP" or "multicast" tunnel is enabled. In this case, the value of the
multicast index is invalid, and then the unknown multicast packets are either totally transparently
transmitted or discarded. For details, refer to "Introduction to the Traffic-suppress Command" in
this document.
Handling Proces
Implementation principles:
s:
Broadcast and unknown unicast packets: The traffic is suppressed according to the number of the
packets. After the port on which the broadcast suppression and the unknown unicast suppression
are configured receives the broadcast and unknown unicast packets, the chip counts the number
of the packets. At a certain interval, if the count reaches the preset threshold, the chip discards
the broadcast and unknown unicast packets that the port later receives until the next interval
starts. When the next interval starts, the counts of the broadcast and unknown unicast packets
received by the port are cleared.
Unknown multicast packets: The chip does not support the traffic suppression by the number of
the packets, so the traffic can be suppressed only according to the bandwidth in the ACL mode.
In this case, the bandwidth that equals to the number of the packets transmitted to the host
multiplied by 512 bytes (the average length of a packet is 512 bytes in calculation) is set in the
chip.
Suggestions and
Command description:
Summary:
Command format:traffic-suppress { broadcast | multicast | unicast } value value { portid |
all }undo traffic-suppress { broadcast | multicast | unicast } { portid | all }Parameter
description:Broadcast: Indicates the configuration of the broadcast suppression.
Multicast: Indicates the configuration of the unknown multicast suppression.Unicast: Indicates
the configuration of the unknown unicast suppression.
Value: Indicates the index of the traffic suppression profile, ranging from 1 to 12.Portid:
Indicates the port number, ranging from 0 to 5.All: Indicates all ports.Mode & Level
SCU configuration mode, operator level
Guideline:
This command is used to configure the traffic suppression of the broadcast, unknown unicast and
unknown multicast on the SCU board. The index of the traffic suppression profile ranges from 0
to 12.
Example:
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