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Monitoring the Hotwire DSL System
4-15
8000-A2-GB20-50
April 2000
Table 4-4. Network Protocol Options (3 of 7)
TCP Connection Statistics B-D-C
Displays a summary of the TCP connection activity on all interfaces on the card.
Connection Requests – Number of TCP connections initiated by a process on this
card.
Connection Accepts – Number of TCP connections accepted by this card.
Connections Established – Number of connections established.
Connections closed/dropped – Number of connections closed (normally) including
those dropped.
Embryonic Connections Closed – Number of connections dropped before data
transfer.
Segments Updated RTT – Number of packets that updated the Round Trip Time and
the total number of times TCP attempted to update the RTT.
Retransmit Timeouts – Number of times a packet had to be transmitted because it was
not ack-ed and the number of times a connection was dropped because a packet could
not be transmitted.
Persist Timeout – Number of times the TCP persistence timer went off and sent a
probe to the remote system.
Keepalive Timeouts – Number of times a TCP keepalive request timed out.
Keepalive probes sent – Number of TCP keepalive probes sent.
Conn Dropped by Keepalive – Number of connections dropped because the keepalive
timer failed to get any responses.
IP Statistics B-D-D
Displays a summary of the IP activity on all interfaces on the card.
total packets received – Total number of IP packets received by this card, with errors
broken down on the right of the screen.
fragments received – Number of packet fragments received, with dropped fragments
on the right of the screen.
packets were fragmented on transmit – Number of packets that were fragmented on
transmit and the number of fragments that were created by those packets.
packets forwarded – Number of packets that were forwarded to another system.
packets not forwardable – Number of packets that could not be forwarded. (Usually
due to packet errors or routing problems.)
packet redirects sent – Number of redirect messages sent to other systems because
they sent a packet that should not be sent to this card.
network broadcasts received for local networks – Number of network broadcasts
received for local networks.
network broadcasts forwarded by media broadcast – Number of network broadcasts
for local networks sent.
network broadcasts partially processed – Number of network broadcasts dropped
due to an error.