Extreme Networks BlackDiamond 12804 User Manual download pdf (Page 2)

BlackDiamond 12804C—Page 2

Extreme Networks Data Sheet

Designed to Enforce Application Performance

Application Scalability

QoS Performance

BlackDiamond 12804C delivers deep

packet buffers throughout the architecture,

helping ensure that even in times of

congestion, packets can be queued and

reliably delivered (rather than being

discarded). While this adds latency

under such times of stress, less ad-

vanced switches will instead discard the

excess trafﬁc. By buffering the trafﬁc,

servers do not need to timeout and

retransmit trafﬁc––greatly increasing the

efﬁciency of both the network and the

compute engines.

Low Latency

When selecting a networking switch for

converged applications, selecting low

latency alternatives for the networking

component provides added margin for

latency introduced by other elements.

With the low switching latency of 9

microseconds for 64-byte packets,

BlackDiamond 12804C is ideal for

converged applications.

Jumbo Frame Support

Jumbo frames of up to 9,216 bytes in

length are supported by the

BlackDiamond 12804C. Jumbo frames

are particularly important in high

performance cluster computing applica-

tions, where studies have shown their

use can reduce server CPU loads by as

much as 50%. Jumbo frames also reduce

protocol overhead and ensure higher

overall network throughput—since

protocol headers are ﬁxed size, larger

frames have a higher ratio of packet

payload to packet header.

Multicast

BlackDiamond 12804C builds on

Extreme Networks’ leadership position

in IP multicast, supporting hardware

identiﬁcation and replication of multi-

cast trafﬁc. Extreme Networks unique

switch fabric architecture need not store

and forward multiple copies of the same

packet across the fabric. This ensures

excellent multicast performance without

impacting other trafﬁc running through

the switch.

Multicast features include Internet Group

Management Protocol (IGMPv2 & v3)

and Protocol Independent Multicast

(PIM). Both Sparse Mode and

Dense Mode PIM are supported.

Scalable Management Through

Extensibility

Ease of Management

Extreme Networks has developed tools

that save you time and resources in

managing your network. EPICenter

provides all fault conﬁguration, accounting,

performance, and security functions to

manage Extreme Networks’ multi-layer

switching equipment in a converged

network. EPICenter Policy Manager

provides layer-independent policy

enforcement for Layers 1 – 4. Our software

application, ServiceWatch

, delivers

powerful Layers 4 – 7 monitoring and

management for mission-critical network

services.

Extensibility to Integrate New

Applications

ExtremeXOS allows for ﬂexible expansion

of network capabilities by providing

a mechanism for third-party applications

in the network to interact directly with

the operating system. ExtremeXOS uses

a secure XML-based API to integrate

with best-of-breed monitoring and

security devices. This extensibility

allows integration with third-party

applications to provide a closed loop for

new monitoring and response capabilities

(see Figure 1).

Converged Network Analyzer

Switches from Extreme Networks provide

high quality QoS on the LAN. Converged

Network Analyzer (CNA) from Avaya

provides the ability to enhance Extreme

Networks LAN advantages with the ability

to optimize QoS on the WAN. CNA coupled

with Extreme Networks infrastructure and

QoS on the LAN provides an optimized

end-to-end IP network for Voice-over-IP

(VoIP) and other business-critical

applications.

Extreme Networks has embedded Avaya’s

CNA monitoring software in its

ExtremeXOS based switches. CNA makes

networks more reliable by addressing

issues with inconsistent application

performance over IP WAN networks. CNA

software monitors the IP network for

problems that affect the user experience

of and other applications. The optional

Adaptive Path Controller module uses

these assessment results to actively avoid

problems in the network by selecting a

better-performing alternative path

whenever one is available. The result is

consistent end-to-end QoS across the

network.

The BlackDiamond 12804C provides deterministic performance independent of which features are enabled.

Figure 1: Extensibility with XML

XML API - Request

XML API - Response

<module_vlan>

<set>

<ports>

4.1

</portlist>

</enabled>

</ports>

</set>

</module_vlan>

<reply>

SUCCESS

</status>

</reply>

Appliance

BlackDiamond

12804C

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