15 Monitoring
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VPN 3000 Concentrator Series User Guide
Monitor | Statistics | MIB-II | Ethernet
This screen shows statistics in MIB-II objects for Ethernet interface traffic on the VPN Concentrator
since it was last booted or reset. IEEE standard 802.3 describes Ethernet networks, and RFC 1650
defines Ethernet interface MIB objects.
To configure Ethernet interfaces, see
Configuration | Interfaces.
Figure 15-47: Monitor | Statistics | MIB-II | Ethernet screen
Refresh
To update the screen and its data, click Refresh. The date and time indicate when the screen was last
updated.
Interface
The Ethernet interface to which the data in this row applies. Only configured interfaces are shown.
Alignment Errors
The number of frames received on this interface that are not an integral number of bytes long and do not
pass the FCS (Frame Check Sequence; used for error detection) check.
FCS Errors
The number of frames received on this interface that are an integral number of bytes long but do not pass
the FCS (Frame Check Sequence) check.
Carrier Sense Errors
The number of times that the carrier sense signal was lost or missing when trying to transmit a frame on
this interface.
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