Monitoring the Hotwire DSLAM
Table 6-4. Network Protocol Options (3 of 5)
TCP Connection Statistics | |
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When you press Return on the TCP Data Statistics screen, the TCP Connection Statistics screen is displayed, showing 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 (RTT) 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 acknowledged 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.
connections dropped by keepalive ± Number of connections dropped because the keepalive timer failed to get any responses.
IP Statistics | |
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Displays a summary of the IP activity on all interfaces on the card.
total pkts rev ± Total number of IP packets received by this card, with errors broken down on the right of the screen.
fragments rev ± 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.
packets were received 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 forwarded by media broadcast.
network broadcasts partially processed ± Number of network broadcasts dropped due to an error.
May 1998 |