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This is the European basic multiplex rate which packs 30 voice channels into a 256 bit frame and transmits at 2.048 Mbps.

EAP (Extensible Authentication Protocol)(RFC2284)supports multiple authentication methods,

such as RADIUS, to provide enhanced security.

EAP-TLS (Extensible Authentication Protocol -Transport Layer Security) authentication uses

digital certifications for mutual authentication. The server presents a certificate to the client. After

validating the identity of the server, the client sends a certificate to the server. The exchange of certificates

is done in the open before a secured tunnel is created.See also EAP and EAP-TTLS.

EAP-TTLS (Extensible Authentication Protocol-Tunneled Transport Layer Service) authentication

is a type of mutual authentication where just the server sends a digital certificate to identify itself to

the clients. See also EAP and EAP-TLS.

Echo Cancellation is an attempt to cancel the delays associated with digital networks. Delays are

encountered as signals are processed through various routes within the networks, including copper wire,

fiber optic lines, microwave connections, international gateways and satellite transmissions.

Egress is the act of going out of something. An egress port is an outgoing port, that is, a port through

which a data packet leaves. An egress router is a router through which a data packet leaves a network

from another network.

This is the burst capability of the connection, for instance, the maximum allowable data transfer rate.

Interference by electromagnetic signals that can cause reduced data integrity and increased error rates on transmission channels.

Encapsulation is the inclusion of one data structure within another structure so that the first

data structure is hidden for the time being.

The act of substituting numbers and characters in a file so that the file is unreadable until it is

decrypted. Encryption is usually done using a mathematical formula that determines how the file is decrypted.

An Encryption Algorithm describes the use of encryption techniques such as

DES (Data Encryption Standard) and Triple DES algorithms.

Encapsulating Security Payload (RFC 2406) is a protocol that IPSec uses to encrypt data to ensure confidentiality.

An Extended Service Set (ESS) is a group of access points connected to a wired LAN on the

same subnet. An ESS ID uniquely identifies each group. All access points and their associated

wireless stations in the same group must have the same ESSID.

A very common method of networking computers in a LAN. There are a number of adaptations to

the IEEE 802.3 Ethernet standard, including adaptations with data rates of 10 Mbits/sec and

100 Mbits/sec over coaxial cable, twisted-pair cable and fiber-optic cable. The latest version of

Ethernet, Gigabit Ethernet, has a data rate of 1 Gbit/sec.

ETSI is a non-profit organization that establishes telecommunications standards

(defining coding standards and signaling schemes) for Europe. ETSI guidelines are voluntary

and almost always comply with standards produced by international bodies.

This is a VDSL mode that operates in a specific frequency band allocation with associated

upstream and downstream speeds.

These are network activities. Some activities are direct attacks on your system, while others

might be depending on the circumstances. Therefore, any activity, regardless of severity is

called an event. An event may or may not be a direct attack on your system.