Coyote Point Systems E350GX, Installation And Administration Manual

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Equalizer Installation and Administration Guide 329
sticky network aggregation Basically, this is server affinity determined by a network mask at Layer 4. If
the following conditions are all true:
•
an incoming request to a Layer 4 cluster has a source IP that
matches the sticky network mask set for the cluster
•
the destination port on the server is not responding
•
the same server IP with another port is defined in another cluster
Then Equalizer will attempt to forward the request to the same server on the
other port.
sticky timer A countdown timer used to manage sticky connections to a Layer 4 cluster.
When this timer expires (i.e., there is no activity between the server and client
for the duration of the timer setting), Equalizer removes the sticky record for
the connection.
subdomain A section, which is formally named, that is under a domain name; analogous
to the relationship between a subfolder and folder. For example, in
www.coyotepoint.com
,
www
is the subdomain. See domain, domain name,
and IP address. See also DNS.
subnet Part of a network that has the same address as the network plus a unique
subnet mask.
switch A Layer 2 device that connects network segments into one broadcast domain.
SYN/ACK Synchronize and acknowledge; a message that synchronizes a sequence of
data information and acknowledges the reception of that information.
syslog A system log file, in which information, warning, and error messages are
stored in a file, sent to a system, or printed.
TCP Transmission Control Protocol; the rules for the conversion of data messages
into packets. TCP provides See ISO/OSI model, Layer 4, packet, transport
layer.
TCP/IP Transmission Control Protocol/Internet Protocol; the rules for transmitting data
over networks and the Internet.
Telnet Part of TCP/IP, a protocol that enables a user to log onto a remote computer
connected to the Internet. See TCP/IP.
traceroute A utility that shows the route over which a packet travels to reach its
destination.
transaction A transaction is a Layer 7 interaction between a client and a server over a
network protocol that defines the format of the interaction. An HTTP
transaction, for example, is a single client request and associated server
response. HTTP is thus a transaction-oriented protocol . This is in contrast to
Layer 4 TCP, which is a connection-oriented protocol and does not provide
the notion of a transaction to applications running over it.
Transmission Control
Protocol (TCP) See TCP.
Transmission Control
Protocol/Internet Protocol
(TCP/IP) See TCP/IP.
transport layer See Layer 4. See also ISO/OSI model.
TTL Time-to-live, the length of time, in seconds, that a client’s DNS server should
cache a resolved IP address.