Cisco ONS 15454 SDH ETSI Chassis and Ship-Kit 15454E-SA-ETSI= Hoja De Datos
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15454E-SA-ETSI=
Data Sheet
© 2008 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information.
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Figure 1. Cisco ONS IP RAN Service Module
Cisco ONS IP RAN Service Module Overview
The primary software and hardware features of the Cisco ONS IP RAN Service Module are
described in the following sections.
Software Features
The software for the Cisco ONS IP RAN Service Module is tailored for IP RAN transport, and
includes several Cisco IOS
®
Software features specifically developed for such applications. These
features include Cisco patent-pending Optimized Pseudowire Emulation (PWE), or GSM Abis/Ater
and UMTS Iub Optimization over IP, which provides optimization to improve backhaul transport
efficiency. Another important feature is Cisco ATM PVC Routing, which provides the ability to route
different types of 3G traffic over different types of backhaul media, while providing load-balancing
and backup paths. For example, in some DSL backhaul networks the downlink supports much
higher capacity than the uplink. Cisco ATM PVC Routing optimally matches High-Speed Downlink
Packet Access (HSDPA) transport to these asymmetric backhaul networks by routing higher-
bandwidth downstream traffic over DSL links, while the lower-bandwidth upstream traffic is routed
over “bonded” T1/E1 links.
The Cisco IOS Software features supported on the IP RAN Service Module include:
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N:1 redundancy
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Cisco Optimized Pseudowire Emulation (PWE)
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Cisco Abis/Ater and Iub Optimization over IP
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IEEE 802.1q and IEEE 802.1p
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Layer 2 Tunneling Protocol Version 3 (L2TPv3)
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Generic Routing Encapsulation (GRE)
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Point-to-Point Protocol (PPP) and Multilink PPP (MLPPP)
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Asymmetric Optimized PWE and Optimized PWE over GRE for HSDPA offload