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8-6 Riverstone Networks RS Switch Router User Guide Release 8.0
Traffic Shaping ATM Configuration Guide
To display traffic statistics for a virtual channel, use the
atm show stats
command as shown in the following
example:
Note that the last line of the example shows that the statistics were never cleared. You can clear traffic statistics on a
port by using the
atm clear stats
command.
8.3 TRAFFIC SHAPING
You can set traffic parameters for a virtual channel by specifying a service category. A service category defines
bandwidth characteristics and delay guarantees. You can then apply a different service category to each virtual channel.
This gives you more control of your network resources, and more options to accommodate different user needs.
You can define the following service categories:
Unspecified Bit Rate (UBR) This service category is strictly best effort and runs at the available bandwidth.
Users may limit the bandwidth by specifying a PCR value. The SCR and MBS are
ignored. This service class is intended for applications that do not require specific
traffic guarantees. UBR is the default.
RS-8000# atm show stats port at.5.1.1.100
PORT = 1, VPI = 1, VCI = 100
Received Transmitted
-------- -----------
SAR statistics:
Packets discarded 0 0
Packets Reassembled/Segmented 119 119
Received cells 119 119
AMAC statistics:
Unicast 0 0
Multicast 0 0
Broadcast 0 0
Discarded 0 0 (includes sent to ACPU)
<64 bytes 0 0
63< <256 0 0
255< <1519 0 0
>1518 0 0
Enabled Up/Down
------- -------
OAM status No N/A
Statistics Cleared * Never Cleared *