Ceragon FA4800, Руководство пользователя

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Setting the Maximum Information Rate (MIR) Chapter 8
FA4800 User Manual Release 1.9.30 8-19
The details of setting up VLAN tagging require advanced network manage-
ment skills beyond the scope of this manual. Further information for the
Network Manager is provided in
15 .
Setting the Maximum Information Rate (MIR)
What is the MIR
The maximum Ethernet throughput of the link (MIR) can be limited. The
default setting is
Best Effort
(see Figure 8-14 above), where the highest
information rate available for the link conditions and settings is used.
What is it for
The MIR setting limits the throughput for Ethernet service. It does not
affect the capacity of TDM services.
If the Link Budget Calculator or air conditions limit the capacity to X Mbps,
and suppose that you use Y (< X) Mbps for TDM services, then you are left
with X - Y=Z Mbps for Ethernet.
Suppose for example, that Z = 20 Mbps.
As a Service Provider, you can decide to sell a package based on 10Mbps
and charge $P1 for it, or 15 Mbps for $P2 > $P1.
The MIR setting allows you do this.
The default value is “best effort” which will give Z above.
¾
To limit the Ethernet information rate:
1. From the Configuration menu, choose the site to reconfigure.
2. Click Advanced | Ethernet
The Configuration dialog box opens.
Note
The minimum value is 64 Mbps.
The maximum value will be the minimum between Z above and -
• 18 or 22.5Mbps for FA4800 (model dependent)
The MIR setting is independent per direction.