Nortel 5520-48t-pwr 规格指南

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Nortel’s Switch Cluster solution can 
further enhance overall resiliency 
through the addition of a second 
horizontally-Stacked ‘Top-of-Rack’ 
Switch. Connected Servers can then be 
‘dual-homed’ to separate Stacks of ERS 
5000 Switches, which in turn appear 
as a single, logical Switch to the rest of 
the network. This enables active-active 
connections, load-balancing and sub-
second failover across the Stacks. These 
features make the ERS 5000 Series a 
truly cost-effective Data Center solution 
that combines always-on resiliency with 
high-performance connectivity. 
Highly scalable small Core
The Ethernet Routing Switch 5000 
Series can also serve as a high-
performing, feature-rich small Core 
solution. With high-density 10GbE and 
SFP ports (up to 64 10GbE and 192 SFP 
ports per Stack), the ERS 5530-24TFD 
and 5632FD models are particularly 
well-suited to small Core applications. 
Coupled with dynamic routing protocol 
support (RIP/OSPF) – and field-
replaceable, redundant power in the 
5600 models — the ERS 5000 Series 
can provide low-cost, resilient small 
Core solutions. 
The ERS 5000 Series can further act 
as a Switch Cluster supporting other 
ERS 2500, 4500 or third-party access 
Switches (see Figure 2) using Nortel’s 
Switch Clustering technology (SMLT). 
ERS 5000s in this configuration can 
provide up to 800 ports and over 2.3 
Terabits of always-on performance — 
while enabling full use of all Switches 
and links across the network. 
Convergence-ready 
capabilities
Power-over-Ethernet
The Ethernet Routing Switch 5520-
24T-PWR, 5520-48T-PWR, 5650TD-
PWR and 5698TFD-PWR models 
provide standards-based Power-over-
3
Ethernet (PoE) and are designed to power 
devices such as IP Phones, Wireless 
Access Points, IP CCTV Cameras, 
security and lighting devices, and access 
control devices such as badge readers.
Full interoperability with all Standards-
based equipment means these Switches 
have the flexibility to power devices 
from any vendors; ERS 5000 Switches 
can supply up to 15.4 Watts per port, as 
defined in the IEEE 802.3af Standard.
Link Layer Discovery Protocol and 
Auto Detection/Auto Configuration
The Ethernet Routing Switch 5000 
Series combines the functionality of the 
Link Layer Discovery Protocol (LLDP) 
and Auto Detection/Auto Configuration 
(ADAC) to detect and configure Nortel 
IP Phones. The implementation includes 
the Location Type-Length-Value (TLV) 
DMLT to Core/Distribution
Trunks distributed
between Switches
in a Stack
Trunks distributed between 
Switches in a Cluster
Ethernet Routing 
Switch 5632FD
Ethernet Routing 
Switch 2500
Switch Cluster
Figure 2. Ethernet Routing Switch 5000 Series in a small Core application,  
with ERS 2500 or 4500 Series Switches at the Edge  
delivering resiliency and efficiency
Only Nortel’s Industry-leading resilient ‘FAST’ architecture delivers the high-availability 
crucial for delay-sensitive and business-critical data, voice and video.
The following new features and 
enhancements have been added to the 
ERS 5000 Series capabilities with the 
release of v6.1 Operating System software:
•  Nortel Automatic QoS
•  Granular and Dynamic QoS
•  Stack Health Check
•  802.1X Dynamic Authorization 
Extensions to RADIUS (RFC 3567)
•  T1 Ethernet over TDM SFP Transceiver
•  Traffic-based Broadcast and Multicast 
Storm Control
•  De-Licensing IPFIX
•  And more than 30 additional Operability 
features and enhancements
New features for the 
v6.1 Release