User manual

Cobalt CacheRaQ Administration

• All clients. This option returns a list of clients that requested

documents through the CacheRaQ. The list contains the

number of bytes sent to each client and the number of

documents sent to each client.

• A speciﬁc client. For a speciﬁed client host name or IP

address, this option returns a list of servers accessed by this

client.

• All servers. This option returns a list of all servers that were

accessed by one or more clients through the CacheRaQ.

• Speciﬁc server. For a speciﬁed server host name or IP

address, this option returns a list of clients who made

requests for documents from that server.

Each of the above options can be sorted by number of documents

or by number of bytes. Finally, you can specify the number of

sites to be displayed by each of the above options.

Note that the statistics can take some time to calculate. This is

particularly true of statistics for the current day, which must be

calculated from the raw access.log ﬁle.

Network Usage

The Network Usage page shows statistics for network packets

sent and received on the CacheRaQ's two Ethernet interfaces. If

an interface is unused, the statistics will all be shown as 0 for that

interface.

Packets are counted in the following categories:

• Good. A packet was received or sent without error.

• Error. Some kind of send/receive error occurred that’s not

covered by the categories below.

• Dropped. A packet was ignored (dropped) by the operating

system because of temporary lack of buffer memory.

• Collisions. The CacheRaQ attempted to transmit a packet

while another host was in the process of transmitting a

packet. A high rate of collisions relative to packets sent

indicates a potentially overloaded network.