Datasheet

Intelligent Stackable
Chassis solution
delivering performance,
scalability, resilience
and flexibility
Avaya introduced its first Stackable
Chassis product in 1998 and we’ve
been perfecting the technology ever
since. We offer genuine chassis-like
features including true pay-as-you-
grow scaling, in-stack switch
replacement and restoration. From a
management perspective, our
Stackable Chassis looks like a single
network entity – utilizing only a single
IP address to dramatically simplify
software upgrades.
ERS 5900
Series Models
2
|
avaya.com
High performance
architecture with true
pay-as-you grow scaling
Our Stackable Chassis products
combine non-blocking internal
switching fabrics with high-speed
virtual backplane architecture to
deliver a high performance solution
that scales proportionally as new
switches are added. The ERS 5900
Series can scale up to 672 Gbps of
virtual backplane throughput by
simply cabling together up to 8 units.
Adding a new unit to the Stack
Chassis is as easy as cabling in a new
member, then extending the
appropriate configuration. The
necessary software images and the
configuration file are automatically
downloaded to the new unit and then
brought on-line without any user
intervention.
All ERS 5900 models come with two
in-built Stackable Chassis interfaces
for simple, cost-effective and efficient
connectivity. Unlike comparative
offerings which daisy chain low-speed
interfaces, this design frees uplink
ports for dedicated connectivity to
the backbone. In addition to the
stacking cables, a return cable is also
used to protect against any port, unit
or cable failures.
Figure 1. ERS 5900 stack back view with
stacking cables, fans and power supplies
In-stack switch replacement
and restoration
Virtual hot swap capabilities enable
any failed switch unit of the Stackable
Chassis to be quickly and easily
replaced with a like-for-like switch
without any impact to the existing
traffic or any units. If a failure occurs,
neighboring switches automatically
wrap their fabric connections so that
other switches within the Stackable
Chassis are not impacted. The failed
unit is simply disconnected from the
virtual backplane and, without pre-
staging of software or configuration,
a like-for-like unit is inserted, cabled,
and powered-up. The Automatic Unit
Replacement (AUR) process self-
manages software and configuration
downloads to the new switch then
brings it online, without the need for
an engineer to configure or manage
the process.
Further complementing the Stackable
Chassis architecture, the Avaya ERS
5900 Series supports standards-
based 802.3ad Link Aggregation as
well as its own Multi-Link Trunking
technology that allows grouping of
links to form high-speed trunks/
aggregations. Groups of links
between the ERS 5900 and another
device can be aggregated (or
trunked) to enhance bandwidth and
resiliency through active redundant
links. Additionally, trunked links can
span different units in the same
Stackable Chassis, enabling more fail-
safe connectivity to mission critical
servers and the network core.
Stack health-check monitoring, a real-
time, at-a-glance view of operational
status and health further enhances
operational and management
simplicity.
Avaya Ethernet Routing Switch 5900 Series
Model Link and Uplink Ports
ERS 5928GTS 24 x 10/100/1000BASE-T ports, plus 4 x SFP+ uplink
ports
ERS 5928GTS-PWR+ 24 x 10/100/1000BASE-T ports supporting 802.3at PoE+,
plus 4 x SFP+ uplink ports
ERS 5952GTS 48 x 10/100/1000BASE-T ports, plus 4 x SFP+ uplink
ports
ERS 5952GTS-PWR+ 48 x 10/100/1000BASE-T ports supporting 802.3at PoE+,
plus 4 x SFP+ uplink ports