Datasheet

BlackDiamond 10808—Page 4
Extreme Networks Data Sheet
Scalable Performance
System Scalability
Port Density
Port density is critical to the scalability
of a switching solution. The moment a
single additional port is needed above
and beyond what is available with any
single switch, hierarchical switching is
required. As soon as more than one
switch is needed for an application, up
to half of each switch’s bandwidth may
need to be dedicated just for switch
interconnects. As a result, the
network becomes much more complex
and expensive.
It is always desirable for a single switch
to support more ports than initially
required. This “headroom” helps to
future-proof the network design (refer
to Figure 4: Port Capacity).
Application Scalability
QoS Performance
BlackDiamond 10808 delivers deep
packet buffers throughout the architecture,
helping ensure to 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
computer engines.
Low Latency
When selecting a networking switch for
high-performance 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 10808 is ideal for high-
performance applications.
Jumbo Frame Support
Jumbo frames of up to 9,216 bytes in length
are supported by BlackDiamond 10808.
Jumbo frames are particularly important in
high-performance cluster computing
applications, 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 10808 builds on
Extreme Networks
®
leadership position in
IP multicast, supporting hardware
identification and replication of multicast
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 (IGMP v1, v2 & v3)
and Protocol Independent Multicast
(PIM), Dense Mode (DM), Sparse Mode
(SM) and Source Specific Mode (SSM).
Scalable Management Through
Extensibility
Ease of Management
Extreme Networks has developed tools
that save you time and resources in
managing your network. EPICenter™
provides fault, configuration,
accounting, performance, and security
functions to manage Extreme Networks
multi-layer switching equipment in a
converged network.
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.
Offering industry-leading 10 gigabit and Gigabit Ethernet port density, BlackDiamond 10808 scales to meet the immediate
requirements and anticipates future requirements of even very demanding IPv4 and IPv6 environments.
© 2010 Extreme Networks, Inc. All rights reser ved.
I/O Modules
60-port 10/100/1000BASE-T (RJ-45)
60-port 1000BASE-X (SFP)
20-port 1000BASE-X (SFP)
6-port 10GBASE-X (XENPAK)
2-port 10GBASE-X (XENPAK)
Hybrid module with:
2-port 10GBASE-X (XENPAK)
20-port 1000BASE-X (SFP)
20-port 10/100/1000BASE-T (RJ-45)
Port Capacity
48-10GBASE-X (XENPAK) ports
480-10/100/1000BASE-T ports
480-1000BASE-X SFP ports
Figure 3: Port Capacity