ADTRAN 1200212L1, Руководство пользователя

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Chapter 10. Statistics
10-14 DSU IQ User Manual 61200212L1-1
For an IP packet to be recognized, it must be carried by an
RFC-2427 IP header or an RFC-2427 SNAP header for bridged
ethernet. If the SNAP header is carrying a bridged ethernet packet,
the MAC header is examined for the protocol type.
SNAP headers are also examined for IPX and ARP traffic.
Information is gathered for the two protocol types you choose and
is displayed with
P1 representing information for P
ROTOCOL
1 and
P2 representing information for P
ROTOCOL
2 .
There are four different views of the Layer 3 Statistics:
• Network Port, View by Interval
• Network Port, View by Day
• DLCI, View by Interval
• DLCI, View by Day
Descriptions of the fields found in these menus follow. Field
descriptions are the same for both protocol selections, so “x”
represents the protocol number.
Px Type (current)
The protocol type currently selected in the C
ONFIGURATION
menu is
displayed in this field.
Interval Remaining
Number of seconds remaining in the current timed interval.
Px Type (listed for each interval)
The protocol type being examined for the given interval is
displayed in this field. When the
P
ROTOCOL
type selection is
changed (see Protocols 1 and 2 on page 9-4), the new selection is not
accepted by the DSU IQ until the end of the current timed interval.
For example, if the DSU IQ is configured for 5-minute timed
intervals, and the
P
ROTOCOL
type selection is changed at 12:25, the
The ARP option actually tracks inverse ARP where addresses are resolved
across the WAN link. SNA traffic is recognized by its RFC-2427 header.