Extreme Networks Summit WM Series Manuel d'utilisateur télécharger pdf (Page 6)

Extreme Networks Data Sheet

Built-in High Availability

Enhanced Availability with

Modular Design

The modular architecture of

Summit WM200 and Summit WM2000

offers lower Mean Time To Repair

(MTTR), and higher MTBF numbers.

Field replaceable service blades reduce

planned and unplanned downtime,

resulting in lower operational costs. The

controllers come equipped with redun-

dant hot swappable power and fan

modules, which enhance reliability.

Cost-Effective Controller

Redundancy

Summit WM controller can operate in a

load sharing redundant mode that enables

both the primary and backup controllers to

be actively servicing trafﬁc during normal

operation. Controllers are paired so each

can assume the load of the other during a

failure. Should either controller fail, its

Altitude APs connect to the backup

controller (see Figure 6) without the need

for additional AP licenses that competing

solutions require. In a failover situation a

controller can support up to double the

number of APs, so for example a

Summit WM2000 could support up to 400

APs in a failover situation.

Self-Healing Radio Network

Summit WM offers self healing capability

for the radio network. At the radio level,

Dynamic Radio Management will detect

AP failures and boost the power output of

the neighboring APs to compensate for the

gap in coverage (see Figure 7). This

eliminates middle of the night support

calls when an AP fails.

With increased access to mission critical applications, enterprise users expect wireless service reliability to be at the same

level they have experienced with wired access. All aspects of the Summit WM solution provide enterprise-grade high

availability.

Figure 7: Dynamic Radio

Management

Altitude 350-2 Altitude 350-2

Summit

WM2000

Summit

WM2000

200 APs 200 APs 400 APs

Altitude 350-2 Altitude 350-2

Summit

WM2000

Summit

WM2000

Failover

Figure 6: Summit WM Controller Redundancy Scheme

1 2 3 4 5 6 7 8 9

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Extreme Networks Summit WM Series Manuel d'utilisateur Page 6

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