Extreme Networks ExtremeWare XOS Guide Manual page 460

Glossary
E (continued)
EDP
EEPROM
EGP
election algorithm
ELRP
EMISTP
encapsulation mode
EPICenter
ESRP
ESRP-aware device
ESRP domain
ESRP-enabled device
ExtremeWare XOS 11.1 Concepts Guide
Extreme Discovery Protocol. EDP is a protocol used to gather
information about neighbor Extreme Networks switches. Extreme
Networks switches use EDP to exchange topology information.
Electrically erasable programmable read-only memory. EEPROM is a
memory that can be electronically programmed and erased but does
not require a power source to retain data.
Exterior Gateway Protocol. EGP is an Internet routing protocol for
exchanging reachability information between routers in different ASs.
BGP is a more recent protocol that accomplishes this task.
In ESRP, this is a user-defined criteria to determine how the master
and slave interact. The election algorithm also determines which
device becomes the master or slave and how ESRP makes those
decisions.
Extreme Loop Recovery Protocol. ELRP is an Extreme Networks-
proprietary protocol that allows you to detect Layer 2 loops.
Extreme Multiple Instance Spanning Tree Protocol. This Extreme
Networks-proprietary protocol uses a unique encapsulation method
for STP messages that allows a physical port to belong to multiple
STPDs.
Using STP, you can configure ports within an STPD to accept specific
BPDU encapsulations. The three encapsulation modes are:
802.1D—This mode is used for backward compatibility with
●
previous STP versions and for compatibility with third-party
switches using IEEE standard 802.1D.
EMISTP—Extreme Multiple Instance Spanning Tree Protocol mode
●
is an extension of STP that allows a physical port to belong to
multiple STPDs by assigning the port to multiple VLANs.
PVST+—This mode implements PVST+ in compatibility with third-
●
party switches running this version of STP.
EPICenter is an Extreme Networks-proprietary graphical user interface
(GUI) network management system.
Extreme Standby Router Protocol. ESRP is an Extreme Networks-
proprietary protocol that provides redundant Layer 2 and routing
services to users.
This is an Extreme Networks device that is not running ESRP itself but
that is connected on a network with other Extreme Networks switches
that are running ESRP. These ESRP-aware devices also fail over.
An ESRP domain allows multiple VLANs to be protected under a
single logical entity. An ESRP domain consists of one domain-master
VLAN and zero or more domain-member VLANs.
An ESRP-enabled device is an Extreme Networks switch with an ESRP
domain and ESRP enabled. ESRP-enabled switches include the ESRP
master and slave switches.
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