Mocomtech CDM-570 User Manual

Page 363

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CDM-570/570L Satellite Modem with Optional IP Module

Revision 4

IP Module - CLI and Telnet Operation

MN/CDM570L.IOM

The IP Statistics page contains the following options/fields:

Menu Options/Fields

Entry

Description

From Ethernet - Total

Ethernet Statistics Page, Rx Good Frames

To Ethernet - Total

Ethernet Statistics Page, Tx Good Frames

To Ethernet - Unicast

Unicast packets to LAN

To Ethernet - Multicast

Multicast packets to LAN

To Ethernet - Broadcast

Broadcast packets to LAN

From Satellite - Total

WAN Statistics Page, Rx HDLC Packet Count

To Sat - Total

WAN Statistics Page, Tx HDLC Packet Count

To Sat - Unicast

Unicast packets to WAN

To Sat - Multicast

Multicast packets to WAN

To Sat - Broadcast

Broadcast packets to WAN

From Endstation - Total

Packets sent from

IP M

odule

To Endstation - Total

Packets directed to

IP M

odule

Received IGMP Packets

Internet Group Management Packets received (used
for management of multicast traffic).

Received IP Options
Packets

Number of IP Options packets received.

Dropped - Total

Total Dropped Packets

Dropped - Bad IP Header
Checksum

Total Dropped Packets due to incorrect IP Header
Checksum.

Dropped - Bad Buffer
Length

IP length (as specified in packet header) was greater
than payload received in the Ethernet packet. This
would indicate the packet was truncated before
arriving.

Dropped - Bad IP Version

Total Dropped IP Version 6 Packets (

IP M

odule only

supports IP Version 4).

Dropped - TTL Expired

Total Dropped Packets due to Time To Live counter
expired (TTL limits the number of hops, or seconds,
before a packet reaches it’s destination).

Dropped - No Route

Total Dropped Packets due to no Route for the
destination in the

IP M

odule Route Table. These are

packets that are directed to the

IP M

odule’s MAC

address and the

IP M

odule will reply to the sender with

a ICMP ‘Destination net unreachable’ message.

Dropped - No ARP Entry

Total Dropped Packets due to no ARP entry in

IP

M

odule ARP Table. For example, if a

IP M

odule

receives packets from the satellite for a host that is not
in the ARP table, the

IP M

odule will send an ARP

request. If there is no response, the packets will be
dropped.

17–63

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