The Cisco ASR 901 series Aggregation Services Router is environmentally
hardened, high-speed, low-power-consumption routers optimized for any-G
cell-site Radio Access Network (RAN) backhaul and Ethernet access. By using the
Cisco ASR 901 router, operators can reduce backhaul operating costs, simplify
and converge their RAN and Ethernet access networks, and enhance their profit
opportunities with mobile and premium Ethernet services.
RAN cell sites are places of transformation between mobile radio and mobile
transport networks. Cost-effective RAN backhaul requires the ability to
simultaneously aggregate the transport of traffic from both legacy and radios
across multiple transport options available at the cell site. The Cisco ASR
901 router is designed to minimize operating costs and optimize this
radio-to-transport transformation through scalable time-division multiplexing
(TDM) and IP/Ethernet interfaces for any combination of multivendor,
multigeneration radios and transport networks.
The Cisco ASR 901 series Aggregation Services Router is compact cell-site
and Ethernet access routers specifically designed to clock, aggregate, and
backhaul mixed-generation RAN traffic. Cisco ASR 901 router prioritizes and
processes cell-site voice, data, and signaling traffic as part of the Cisco
unified RAN backhaul solution for reliable transport across any available
backhaul networks, including T1/E1, ATM, Carrier Ethernet, microwave, WiMAX, and
service provider Wi-Fi networks.
Klíčové vlastnosti Low power consumption Line rate performance for all
L2/L3 interfaces Extended operating temperatures Redundant power and cooling
Inner and outer VLAN classification IEEE bridging Resilient Ethernet Protocol
(REP) Layer 2 Protocol Tunneling (L2PT) Ethernet over MPLS (EoMPLS) EoMPLS
pseudowire redundancy High-Level Data Link Control (HDLC) over MPLS
Point-to-Point Protocol (PPP) over MPLS Cisco Express Forwarding (CEF) Load
Sharing of Equal Cost Paths (ECMP) Open Shortest Path First (OSPF) Border
Gateway Protocol (BGP) Intermediate System-to-Intermediate System (IS-IS)
Bidirectional Forwarding Detection (BFD) support for OSPF, IS-IS, BGP, and
static routes Label Distribution Protocol (LDP) with Label Edge Router (LER) and
Label Switch Router (LSR) support Equal Cost Multiple Path (ECMP) support
Differentiated Services Code Point (DSCP) traffic shaping and policing
Class-Based Weighted Fair Queuing (CBWFQ) Weighted Random Early Detection (WRED)
Priority queuing Egress shaping per queue QoS ingress/egress statistics Building
Integrated Timing Supply (BITS) ITU-T Synchronous Ethernet (SyncE) support on
copper and fiber Simple Network Management Protocol (SNMP)
Cell-site backhaul for mobile applications Deployed as cell-site routers for
mobile backhaul, the Cisco ASR 901 router can aggregate multiple base stations
through multiple TDM, Ethernet, and IP interfaces, and can use Multiprotocol
Label Switching (MPLS), Resilient Ethernet Protocol (REP), Multilink
Point-to-Point Protocol (MLPPP), Layer 3 VPN (L3VPN), and other common
transport protocols for RAN backhaul.
Metro Ethernet access Cisco ASR 901 router allows service providers to
simultaneously manage and operate Pseudowire Emulation Edge to Edge (PWE3) and
Carrier Ethernet environments by supporting line-rate Layer 2 Ethernet
operations, administration, and maintenance (EOAM), including Connectivity Fault
Management (CFM), Ethernet Local Management Interface (ELMI), Ethernet in the
First Mile (EFM), Resilient Ethernet Protocol (REP), and QinQ.
Business access device Cisco ASR 901 router is optimized for remote-access
and small aggregation sites where a fully featured, compact access platform is
needed. The router offers business service flexibility using an Ethernet virtual
circuit (EVC) infrastructure and delivers Layer 2, IP, and MPLS transport for
advanced Layer 2 and Layer 3 VPN services.
„Green“ hardware Cisco ASR 901 routers helps service providers reduce
operating costs by optimizing energy efficiency, allowing for cost-effective and
responsible resource management. The router is designed for low power
consumption with RoHS-compliant/lead-free components. An indirect benefit is a
significant reduction of carbon emissions.
Service richness With the Cisco ASR 901 router, services can be prioritized
and differentiated through hierarchical quality of service (HQoS) and security
attributes. The router offers advanced traffic analytics and performance
monitoring and control, including per-traffic-class metering, bidirectional
packets, and byte statistics. The service offering is enhanced with
comprehensive OAM functionality, including Layer 2 CFM, IP service-level
agreements (SLAs) for Layer 3, and MPLS OAM.
Service scale The Cisco ASR 901 router delivers line-rate performance and
flexible service scalability in a compact form factor. The router delivers high
performance and scale for all mobile and Carrier Ethernet services.
Advance timing The Cisco ASR 901 router provides the timing services
required in today's converged access networks by offering integrated support
for the Building Integrated Timing Supply (BITS), 10-MHz, 1 Pulse Per Second
(PPS), and Time of Day (ToD) interfaces. The routers support SyncE on copper and
optical ports and IEEE1588v2 Precision Time Protocol (PTP).
Network simplification Cisco network virtualization (nV) technology can
simplify network operations by reducing the number of components that must be
managed, supporting easier configuration. The result is increased network
scalability, improved service velocity, and lower operating costs. The
nV-capable ASR 901 router can be deployed as components in a Cisco ASR
9000 series system to reduce the complexity of today's mobile Internet