Extreme Networks Summit 400-48t Bedienungsanleitung PDF herunterladen (Seite 2)

Extreme Networks Data Sheet

Intelligence to Support New Services and Simplify the Network

Intelligence to Adapt to

Network Priorities

Quality of Service

Summit 400-48t uses advanced DiffServ

and 802.1p (Class of Service) protocols

for QoS. These protocols classify,

prioritize and mark LAN trafﬁc as a way

to efﬁciently use existing bandwidth and

offer reliable connectivity for mission-

critical applications and converged

networks that are susceptible to band-

width availability, system latency

and jitter.

Policy-Based Rate Limiting

Summit 400-48t supports up to 5,800

central rate limiters to automatically

control bandwidth use and increase

overall network efﬁciency. For Policy-

Based Mapping, rate limiters can be

applied to Layers 1 – 4 and can re-write

DiffServ code points and 802.1p Class

of Service.

The central ﬂow control rate limiting

feature in Summit 400-48t adds a valuable

tool for bandwidth management on

ingress trafﬁc. Similar to an ACL, the rate

limiting feature inspects incoming packet

headers to allocate a predeﬁned amount

of bandwidth for that trafﬁc ﬂow. If the

ﬂow exceeds the assigned bandwidth,

excess packets are either dropped or

modiﬁed by resetting their DiffServ code

point. Rate limits can be conﬁgured from

1 Mbps in 1 Mbps increments up to full

line-rate. Rate limiting is an excellent

method of managing and prioritizing the

total trafﬁc coming into a switch and it

also enables control of the amount of

bandwidth any port, user or application is

allowed to consume.

Intelligence to Protect the

Network at the Edge

Network Login and 802.1x

The Network Login feature on

Summit 400-48t is a comprehensive user

authentication tool that ensures that every

user on every port can be authenticated.

When a hub or Wireless Access Point

(WAP) is attached to the switch running

802.1x, the ﬁrst user on the hub or WAP is

authenticated. With Network Login and

Multiple Supplicant support,

Summit 400-48t also challenges and

authenticates any subsequent users

connecting to the hub or WAP.

Security with Multiple Users on a

Single Port

Normally, when the switched port is

shared, a single user authentication opens

that port for all other users, authorized or

not. Summit 400-48t solves this problem

through the multiple supplicant feature of

ExtremeWare

802.1x Network Login.

This feature associates the user with the

device which is accessing the network. For

example, a user may access the network

from his/her PC by submitting an autho-

rized password. If a second user wants

LAN access from a different device

through the same port via a shared

access device (such as a hub or WAP),

the second user can only enter the LAN

with the correct password.

Secure Shell 2

Summit 400-48t supports Secure Shell 2

(SSH2) to securely transfer switch

conﬁgurations and ExtremeWare images

into and out of the switch. To ﬁx the known

limitations in SSH, it is critical that customers

use the latest SSH2 version as supported in

Summit 400-48t.

Common Management Interface

with all Extreme Networks

Switches

Compatible Command Line

Interface Across All Platforms

Summit 400-48t uses the same

ExtremeWare management commands and

has the same look and feel as all other

Extreme Networks switches resulting in a

common end-to-end management solution

that reduces training expenses and

management costs throughout the

network. Summit 400-48t supports

extensive management interfaces through

standard management tools like SNMP,

RMON and Command Line Interface.

Summit 400-48t supports web-based,

HTML management for an advanced

“manage-anywhere” capability.

Summit 400-48t delivers the ability to easily deploy new services such as security, bandwidth tracking and trafﬁc prioritization.

With Layer 3 intelligence, high-performance and throughput capacity, Summit 400-48t helps deliver a full range of applications

on a converged network.

Multiple Supplicant feature

enables security for multiple

users on a single port.

Network

Summit 400-48t

Security with Multiple Users on a Single Port

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