Comtech EF Data CIM-300L - Manual (Page 232)

CiM-300L IP Enabled Satellite Modem Rev. 1
Web Server Pages CD/CIM300L.IOM
206
Field Description
Packets from Satellite Packets from Satellite is the total of all the packets destined to
the Ethernet Interface and the Satellite to Satellite routed
packets.
Total IP Packets routed to
Sat Total IP Packets routed to Sat is the summation of the Unicast,
Multicast and Broadcast packets routed to the Satellite
Interface.
Total IP Packets routed to
Ethernet Total IP Packets routed to Ethernet is the summation of the
Unicast, Multicast and Broadcast packets routed to the
Ethernet Interface.
IGMP Packets Received Number of IGMP Packets received
IP Options Packets
Recevied Number of IP Options Packets received.
Dropped – total The Total Packets dropped counter indicates the number of
total packets that were dropped by the CiM.
Dropped - TTL Expired The packet was dropped because the Time-To-Live value in
the IP header has reached 0. This means that the packet has
exceeded it maximum allowed number of hops without
reaching its destination.
Dropped – BAD IP Header
Checksum The Bad IP Header Checksum counter indicates the total
number of packets that were received by the CiM that
contained CRC errors. If received packets contain CRC errors,
then the CiM discards the packet.
Dropped – No Route The destination address of the packet does not match any of
the configured routes in the CiM Route table. The CiM has no
choice but to discard the packet since it has no idea where it
should go next.
Dropped – Filtered Multicast
Sat to Ethernet Multicast was dropped because route for this packet did not
specify Satellite to Ethernet (SAT->ETH) routing.
Dropped – Filtered Limits certain types of traffic that should not leak to Satellite.
For example, broadcasts destined for Satellite LAN
Dropped – Multicast Disable
Group Multicast packet was dropped because, although route existed,
IGMP is being used, and there is no client requesting
forwarding of this traffic.
Dropped – No ARP Entry The Unicast Packet ARP Fail counter indicates the number of
Unicast packets that were received by the CiM and were
destined for a device on the same subnet as the CiM, but were
dropped because the device specified in the destination IP
packet of the received packet has not yet responded to an
ARP. After power-up, this counter typically increments for the
first three seconds that packets are received for a device on the
same subnet as the CiM.
Dropped – Bad Buffer
Length IP length )as specified in packet header) was greater tha
payload received in the Ethernet packet. This would indicate
the packet was truncated before arriving.