16. Ethernet Ports
ROX™ v2.2 User Guide
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RuggedBackbone™ RX5000
Disabling link-alarms will prevent alarms and LinkUp and LinkDown SNMP traps from being sent
for that interface. Link alarms may also be controlled for the whole system under admin / alarm-cfg.
Switchport
Synopsis: boolean
Default: true
Sets the physical port into either switched mode or a dedicated routing mode.
Flow Control
Flow control is useful for preventing frame loss during times of severe network traffic
LFI
Link Fault Indication (LFI) is specifically for FX interfaces.
Alias
Synopsis: A string
The SNMP alias name of the interface
If one end of the link is fixed to a specific speed and duplex type and the peer auto-
negotiates, there is a strong possibility that the link will either fail to raise, or raise with the
wrong settings on the auto-negotiating side. The auto-negotiating peer will fall back to half-
duplex operation, even when the fixed side is full duplex. Full-duplex operation requires
that both ends are configured as such or else severe frame loss will occur during heavy
network traffic. At lower traffic volumes the link may display few if any errors. As the traffic
volume rises, the fixed negotiation side will begin to experience dropped packets while
the auto-negotiating side will experience excessive collisions. Ultimately, as traffic load
approaches 100% the link will become entirely unusable. These problems can be avoided
by always configuring ports to the appropriate fixed values.
16.2.2. Port Rate Limiting
Figure 16.6. Rate Limiting form
To display the Rate Limiting forms, navigate to interface/switch/{line module}.
Ingress Limit
Synopsis: string - the keyword { disabled }
Synopsis: integer
Default: 1000
The data rate in kbps at which received frames (of the type described by the ingress frames
parameter) will start to be discarded by the switch. The valid range is 62 to 256000 kbps. The default
value is 1000 kbps. If not set(cleared), this feature is disabled.
Ingress Frames
Synopsis: string - one of the following keywords { all, mcast-flood-ucast, multicast, broadcast }