valutazioni - 1, GPA: 3
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Facilità d'uso
window probes – Packets received looking for space in our receive window. window update pkts – Packets received from the remote system advertising a new window size. pkts rcv after close – Packets received after the (our) TCP connection is shut down. discarded for bad checksum – Packets that were discarded because the checksum failed. discarded for bad header offset fields – Packets discarded because the TCP header was corrupted. discarded because packet too short – Packets discarded because the packet was too short (not a complete TCP header). Right column: Packets sent – Number of TCP packets sent by the card. data pkts – Number of the sent packets that were data packets instead of TCP control packets. data pkts retransmit – Number of packets that had to be transmitted. ack-only pkts – Number of sent packets that contained only an acknowledgement of a received packet and no additional data. URG only pkts – Number of packets that contained only an Urgent flag and no data. window Probe Pkts – Number of packets that were window probes. window Update Pkts – Number of packets that were advertising our new window size. control Pkts – Number of control packets sent (SYN, FIN, or RST flag). May 1998 8000-A2-GB26-00 Monitoring the Hotwire DSLAM Monitoring the Hotwire DSLAM TCP Connection Statistics B-D-C 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 B-D-D 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. 8000-A2-GB26-00 May 1998 Monitoring the Hotwire DSLAM Monitoring the Hotwire DSLAM ICMP Statistics (ICMP Packet Statistics) B-D-E Displays a summary of the Internet Control Message Protocol (ICMP) activity on all interfaces of the card such as echo replies, source quench messages, and information requests with their output, input, and status. The columns show output and input packet counts. Note that the Status column is only applicable for “routing redirect.” The counters increment in real time and you may enter Ctrl-r at any time to reset the counters. Press Return to see more ICMP statistics. SNMP Statistics B-D-F Displays information on Simple Network Management Protocol (SNMP) statistics. The counters increment in real time and you may enter Ctrl-r at any time to reset the counters. In Packets – Total number of SNMP Protocol Data Units (PDUs) received by the agent. Get Requests – Total number of SNMP Get Request PDUs accepted and processed by the SNMP agent. Get Next Requests – Total number of SNMP Get Next PDUs accepted and processed by the SNMP agent. Total Requested Variables – Total number of Management Information Base (MIB) retrieved successfully by the SNMP agent as...
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