Specifications

4-26 Reference Guide
Model No.
Running Head
IP Packet Routing CPU Card
TX Wait for Buffer
The TX Wait for Buffer field shows the total number of transmissions that were delayed by
the local system for free memory in the buffer.
4.4.1.8 SNMP Parameters
The TELNET parameters also appear in the fourth Network Statistics Screen (Figure 4-9
8
).
They are described below.
PDUs Sent
The PDUs Sent field shows the number of Protocol Data Units sent from the local system. A
Protocol Data Unit is a data object exchanged by protocol drivers, usually containing both
protocol control information and user data.
Traps Sent
The Traps Sent field shows the total number of SNMP traps that were transmitted by the local
system to the network host.
4.5 IP Packet Routing
The integrated access system supports multipoint routing of Internet Protocol (IP) packets to
a local Network Management System over the computer port, a remote NMS over the B7R
card, time slot 24 of a D4-framed T1 link, or the Facility Data Link (FDL) of an ESF-framed
T1 link. For E1 links, the routing information is sent on the B7R card via time slot 31 or the
SA4 (national) bit.
To use an entire DS0 time slot (either 24 or 31) for remote NMS routing, no action needs to
be taken. To use a B7R card, FDL, or SA4, you must make an additional selection on the
associated WAN card. For T1 links, the selection is made via the ESF/NMS RP parameter. For
E1 links, it is made via the COM/NMS RP parameter. Refer to WAN Card and B7R Card
Chapters for further information.
All packets arriving on any of the optional paths or the local port will be treated by the IP stack
as follows:
•
If the packet's destination address matches that system's address, the packet is processed
locally.
•
If the address is not the same, the unit will search the routing table to find a remote
address that matches the destination of the packet.