Extreme Networks ExtremeWare XOS Guide Manual page 470

Glossary
R (continued)
route aggregation
route flapping
route reflector
routing confederation
RSTP
S
SA
secondary port
SMF
SNMP
SSH
standard mode
ExtremeWare XOS 11.1 Concepts Guide
In BGP, you can combine the characteristics of several routes so they
are advertised as a single route, which reduces the size of the routing
tables.
A route is flapping when it is repeatedly available, then unavailable,
then available, then unavailable. In the ExtremeWare XOS BGP
implementation, you can minimize the route flapping using the route
flap dampening feature.
In BGP, you can configure the routers within an AS such that a single
router serves as a central routing point for the entire AS.
In BGP, you can configure a fully meshed AS into several sub-ASs and
group these sub-ASs into a routing confederation. Routing
confederations help with the scalability of BGP.
Rapid Spanning Tree Protocol. RSTP, described in IEEE 802.1w, is an
enhanced version of STP that provides faster convergence. The
Extreme Networks implementation of RSTP allows seamless
interoperability with legacy STP.
Source address. The SA is the IP or MAC address of the device issuing
the packet.
In EAPS, the secondary port is a port on the master node that is
designated the secondary port to the ring. The transit node ignores the
secondary port distinction as long as the node is configured as a
transit node.
Single-mode fiber. SMF is a laser-driven optical fiber with a core
diameter small enough to limit transmission to a single bound mode.
SMF is commonly used in long distance transmission of more than 3
miles; it sends one transmission at a time.
Simple Network Management Protocol. SNMP is a standard that uses
a common software agent to remotely monitor and set network
configuration and runtime parameters. SNMP operates in a
multivendor environment, and the agent uses MIBs, which define
what information is available from any manageable network device.
You can also set traps using SNMP, which send notifications of
network events to the system log.
Secure Shell. Extreme Networks uses version 2 of SSH, which is SSH2.
This feature allows you to encrypt Telnet session data between a
switch and an SSH2 client on a remote system. In the Extreme
Networks implementation, you must download, install, and enable a
separate SSH software module in order to access this feature.
Use ESRP standard mode if your network contains switches running
ExtremeWare and switches running ExtremeWare XOS, both
participating in ESRP.
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