Ethernet Switching Reference Guide
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Passport 7400 Multiservice Switch
PP7400 Key Features Benefits
System Networking Redundancy  Redundancy available at CP, FP, system bus, Fan 
Unit & Power supply to avoid single point failure
Multiple Priority System Allocates bandwidth dynamically, reducing 
traffic congestion and delivering the least possible 
network latency, guaranteeing service level for 
all traffic
ATM SVC/PNNI/IISP Support Provides ease of configuration and management 
with reduced latency for voice and improved 
connectivity for LAN traffic
Next Generation ATM  Dedicated ASIC to optimise IP performance 
IP module over ATM
Frame Relay RFC 1490 WAN PVC over  Provides seamless inter-working between Passport 
Frame Relay protocol 7400 and routers
QoS-enabled for Frame  Support QoS prioritisation(TP) for FR circuits over 
Relay service PP network
Voice Toll-quality Voice  Support single-hop SVC for voice connection to 
(Clearvoice) deliver toll-quality voice at G.729 
FAX Demodulation Efficient consolidation of fax with other services 
reduces communication costs. Transmits faxes 
with only 9.6/14.4 Kbps instead of 64 Kbps
A-law and Mu-law  Inherently provides signalling conversion and 
conversion avoids the need for external signalling equipment
Echo Cancellation On-board echo cancellation with 64ms tail delay 
delivers superior voice quality and eliminates the 
need for external devices
Support for both AAL2 channel multiplexing for greater networking
VoATM and VoIP efficiency
LAN Routing Support: RIP,  Provides flexibility in building IP networks
RIPv2, OSPF, BGP-4, EGP
Scalability 32 Port MSA FP A flexible card that supports a mix of services 
(ATM, frame relay, CES, IP) and greatly enhances 
the customer's ability to adapt to growth in 
different services without having to deploy 
separate FPs and incur incremental costs to spare 
multiple FPs
4 Port MVPe A four port version of the existing 1 Port MVPe 
which provides significant port density and cost 
improvements
MPLS Support for evolving MPLS standards to deliver 
significant traffic handling improvements in 
multiservice IP-based networks
Key Features and Benefits










