SmartEdge 800 Router
   An edge router with the reliability, performance, and flexibility to deliver carrier-class IP services
   The unprecedented acceptance of the Internet as an essential business tool has created new opportunities for service providers, as well as new challenges. Among the challenges is the urgency of improving service availability as business customers become increasingly intolerant of unreliable IP services and demand SLAs. In addition, the steep upward trajectory in IP service demand has introduced new requirements for scaling the network. This involves not only increasing network capacity and packet-forwarding rates, but also ensuring that the operating software that supports routing protocols and packet forwarding processes is also scalable, robust, and highly resilient. Finally, margin and competitive pressures are motivating interest in IP services beyond basic Internet access but uncertainty about what new IP services will predominate over the long term, or even what protocols or data encapsulations will be required to implement them, complicates decision making about suitable platforms.
The SmartEdge? 800, a member of the SmartEdge family of carriergrade networking platforms, is targeted at IP dedicated access services, Layer 3 and Layer 2 VPNs, premium service delivery, as well as backbone core applications. The product is distinguished by a number of features for providers focused on delivering highly available IP services today, and having total flexibility to support new IP services in the future.
System Architecture
   The SmartEdge 800 is engineered for deployment in the most demanding network environments. All common equipment and line cards are hot swappable and critical components such as the Route Processor can be implemented in redundant configurations. Innovative software enables fast failover to a hot standby Route Processor with no interruption to forwarding, and near hitless software upgrades. The packet switching mesh employs high-performance ASICs developed by Redback and is distributed to every line card, thus having no single point of failure. There is a dedicated processor for time critical I/O functions such as fault and performance monitoring and alarms. Power and return lines are diversely routed across the backplane to every slot in the chassis. The SmartEdge 800 packs considerable performance into an extremely compact form factor. The 15.75" chassis (9 Rack Units, 4 chassis per rack) has a packet mesh that operates at 160 Gbps with sustained packet forwarding rates of 65 Mpps. There are 14 slots in the chassis, two for route processors and 12 for line cards. High port densities allow providers to maximize the use of rack space and conserve power 〞 both of which are significant contributors to operational expense.
Interface Type Ports per Slot Ports per Chassis
DS1 (optical) 336 4,032
E1 (optical) 189 2,268
E1 (copper) 24 288
DS-3 (optical) 12 144
DS-3 (copper) 12 144
OC-3 8 96
OC-12 4 48
OC-48 1 12
DS-3 ATM 12 144
OC-3 ATM 4 48
OC-12 ATM 1 12
Fast Ethernet 12 144
Gigabit Ethernet 4 48
   Purpose built hardware and software. Redback has invested heavily in building highly resilient hardware and software for the SmartEdge 800. The product was designed with availability, scalability, programmability, and high performance in mind. It supports 99.999% reliability, scales both physically and logically to thousands of sessions, is flexible enough to be continuously upgraded to support new services, and can forward packets at line rate even with features enabled.
   High-performance switching and programmable forwarding. The SmartEdge 800 employs a very highperformance packet mesh, whereby every card is interconnected to every other card. The packet mesh has 160 Gbps of switching capacity and is built with ASICs developed by Redback. All of the packet forwarding functions in the SmartEdge Router are implemented with Redback*s specialized network processors, called Packet Processing ASICs (PPA).
   The SmartEdge 800 uses a dedicated PPA on every line card for input packet processing and another dedicated PPA on every line card for outgoing packet processing. With dedicated packet processors for incoming and outgoing traffic, the SmartEdge 800 can support high-performance forwarding, with a rich set of packet processing features (ACLs, rate limiting, etc) turned on, both on the access side (toward the customer) and the backbone side. The PPA is fully programmable so enabling new services is as straightforward as reprogramming the hardware. The PPA preserves investments in hardware going forward since new features can be enabled with new software rather than new hardware.
   Advanced features that maximize Route Processor availability. The SmartEdge 800 hardware and software support a hot standby Route Processor with fast failover and minimal interruption to forwarding. An Active Component Upgrade feature allows individual routing protocols and other feature modules to be upgraded in crisis situations, with no interruption to forwarding.
   Distributed forwarding. Forwarding functions on the SmartEdge 800 are distributed on every line card and handled by the PPA. A failure of one line card has no impact whatsoever on packet forwarding for any other line card. In contrast to most existing platforms, the forwarding path of the SmartEdge 800 is fully programmable, so it can forward any packet type, with any encapsulation, without intervention by the Route Processor. Thus, there is no central point of failure for packet forwarding, even for specialized packet types.
   Non-stop forwarding and separation of routing and forwarding. The SmartEdge 800 can support non-stop forwarding by continuing to forward packets even when the control plane is adversely affected by network instability or a protocol crash or restart. This is because routing and forwarding functions are strictly separated. The Route
Processor is dedicated exclusively to processing route
updates and calculating routes. Business customer traffic and
SLAs are not affected by control plane transitions; instead,
the network remains available.
   Routing protocols designed for availability, scalability, and flexibility. Recognizing that all of the routing protocol suites available in the open market lack high availability and high scalability characteristics, the SmartEdge OS was built from the ground up. The code is optimized for high availability and engineered for scalability to support next-generation requirements for peering and edge aggregation. It is also designed to accommodate new protocols such as MPLS and IPv6 with new encapsulations and Address Families.
   Software modularity and process restartability. The SmartEdge 800 OS is highly modular to improve system reliability. Every protocol such as BGP, OSPF, IS-IS, and RIP is implemented as a separate process. The Routing Information Base (RIB) and configuration UI are also separate processes. Failure of one process has no impact on any other process. For example, if a network event crashes BGP it does not affect
any other protocols and does not cause a system crash. If a routing protocol fails it can be restarted without affecting any other protocol.
   Graceful restart. The SmartEdge 800 supports graceful restart for BGP, OSPF, LDP and IS-IS. Graceful restart is a mechanism which promotes high availability in the network and minimizes the impact of restarting routing protocols. Normally, when a protocol is restarted, a router's peers detect that a session went down and cause reconvergence throughout the network. The resulting route recomputation and networkwide routing updates consume processing resources and potentially cause packet loss in transient forwarding loops. When graceful restart is supported, a router's peers do not immediately cause networkwide reconvergence. The restarting router is given the opportunity to re-establish routing sessions and download fresh routes. Graceful restart works in tandem with the forwarding plane stability introduced by non-stop forwarding to support a new measure of control plane stability.
   Virtual private network support. Virtual private networks (VPNs) allow carriers to offer new services which leverage existing infrastructure investments. The SmartEdge 800 supports both Layer 2 and Layer 3 VPNs in conjunction with multiple contexts to create a flexible and powerful service offering. Each VPN gets its own IP address space, routing table, protected network traffic, user authentication, and other attributes. VPNs can be built across a carrier network with a variety of different technologies, including BGP/MPLS (RFC 2547bis), Layer 2 MPLS (draft-martini), and GRE tunneling. The customer can be terminated into the VPN with a variety of different methods, including ATM, frame relay, Ethernet, and leased line. Because of the SmartEdge 800's support of virtual interfaces, customers can be easily switched between different types of VPNs with only one configuration line change.
   Routing protocol interoperability and scaling. Delivering IP services requires a complete set of scalable interior and Exterior Gateway routing protocols equipped with the latest feature extensions. The SmartEdge 800 supports BGP, IS-IS, OSPF, and RIP. BGP features include Route Aggregation, MD5 Authentication, Route Reflection, Route Flap Dampening, Confederations, Communities, Peer Groups and new extensions such as BGP Refresh, Outbound Route Filtering, and BGP Graceful Restart. IS-IS features include: multiple levels, multiple instances (with redistribution between instances), load balancing and authentication. For any combination of route table size and peers, the routing protocols will offer unmatched convergence times.
   Support for multiple contexts. A unique service enabling capability of the SmartEdge 800 is support for multiple routing contexts, which allow a provider to partition a chassis with software to create ※contexts§ or virtual routers. Each context appears to the service provider (and end customer) as a full-featured router with a console along with all of the monitoring and configuration features they would expect to see in a dedicated router. The use of contexts in combination with MPLS or GRE VPNs provides a powerful VPN model that allows for increased customer visibility into VPNs.
   Quality of Service features. The SmartEdge 800 has a full complement of packet processing features that can be used to enable IP services. These include extensive packet classification or filtering capabilities based on ingress port/circuit, source/destination IP address and/or TCP port or protocol. Packets can be marked per the Diffserv specification or the Type of Service bits can be set. Access Control Lists are supported to permit or deny packets based on the same filter criteria.
   Quality of Service functions include ingress policing and egress shaping, whereby incoming and outgoing traffic are conditioned to meet a mutually agreed upon traffic profile, typically a sustained bandwidth value plus a burst tolerance. The SmartEdge 800 also supports sophisticated queuing and scheduling. There are up to 1k queues available per line card and the number and use of the queues is configurable. Priority queueing or Enhanced Deficit Round Robin (EDRR) are used in conjunction with policing and shaping to manage bandwidth. For congestion control, the SmartEdge 800 uses Random Early Detect (RED) and Weighted Random Early Detect (WRED), the two most commonly employed techniques available today.
   Leading multicast implementation. The SmartEdge 800 also supports a complete suite of multicast routing protocols: IGMP, MSDP, PIM-SM, SSM. These protocols together with the hardware assisted multicast forwarding make for a superior multicast implementation, supporting very high fanouts. To protect link bandwidth and preserve the quality of multicast streams, network providers can also limit the number of members in a multicast group on a per-port basis.
   Bulkstats. Bulkstats provides a more efficient alternative to SNMP as a means of gathering network accounting statistics from the SmartEdge 800. The router samples and stores system, network and traffic statistics at specified sampling intervals. The data are then sent at specified intervals as a text file via FTP to a networkmanagement station, allowing for easier network management.
   Traffic mirroring. Traffic mirroring is a powerful tool for troubleshooting, and lawful interception, and traffic analysis. Packets can be mirrored or sampled from any circuit in the system, at ingress or egress, and then sent to any other circuit on the system. Up to seven or eight classes of packets can be specified, with each class being mirrored to a different output circuit.
   Cross connect support. The cross connect features on the SmartEdge 800 allow network providers to offer premium services to end customers while minimizing both equipment expenditures and customer downtime. The SmartEdge can locate specific packets within an end customer traffic flow and direct them toward separate networks.
   So all PPP Over Ethernet packets can be sent to one network for standard Internet service, and all IPv4 and IPv6 packets can be directed toward a premium services network. Additionally, disparate media such as ATM and Ethernet can be cross connected together so ATM PVCs could be aggregated into Gigabit Ethernet trunks.
每 15.75§(H) x 17.5§ (W) x 16§ (D), four chassis per 7* rack.
每 19§ and 23§ rack mountable (front)
每 14 slots, 2 for Route Processors; 12 universal slots for line cards,
Weight: 50 lbs unloaded; fully loaded chassis approx. 90 lbs
每 Connectors on chassis: Power A, B; dual BITS synchronization inputs and outputs; alarm output, status input.
Route Processor Module
每 2 per chassis (1 working + 1 hot standby) Power PC 750
每 768 MB memory per Route Processor
每 PC card slot for 1 GB Microdrive for secondary storage
每 BITS clock sources (2) for external stratum clock inputs
每 Stratum 3 Oscillator
每 Management ports: 2 craft ports: DB-9 RS-232, Rear async modem port, Ethernet 10/100TX
Line Cards
每 Dual Packet Processing ASICs (PPA); 1 for ingress processing, 1 for egress processing
- Packet mesh ASICs
- Forwarding performance of 160 Gbps or 65 Mpps
Card Types
- 1 port Channelized OC-12 to DS3
- 1 port Channelized OC-12 to DS1/DS3 (336 channels)
- 12 port Channelized DS3 (336 channels)
- 12 port Clear Channel DS3
- 3 port Channelized STM-1 (336 channels)
- 24 port Channelized E1 (336 channels)
- 1 port OC-48c/STM-16
- 4 port OC-12c/STM-4
- 8 port OC-3c/STM-1
- 1 port OC-12c/STM-4 ATM
- 4 port OC-3c/STM-1 ATM
- 12 port DS3 ATM
- 12 port 10/100TX Ethernet
- 4 port Gigabit Ethernet
每 1+1 for all common CPUs, Clock and independent power to each line card
每 Hot standby Route Processors
每 Restartable routing processes
Operating Environment
每 Temperature: 0-40 degrees
每 Humidity: 5-90% RH
每 Power: -48 V DC
- NEBS Level III in process, CE Mark, UL 1950, GR-63 Core, GR-1089 Core, ETS 300 386-2 FCC Part 15, EN55022 class A, ETS 300 386-2
Software Features
- Restartable routing processes
- Non-stop forwarding
- Hot standby Route Processors
- Active Component Upgrade
- Multiple Contexts
- Premium Service Insertion
- VPN support for BGP/MPLS VPNs, Layer 2 VPNs, GRE
- MPLS Traffic Engineering
- Access Control Lists
- Bulkstats
- Virtual Router Redundancy Protocol (VRRP)
- Quality of Service: Packet classification; DiffServ AF1-4 & EF packet marking by ACL, ingress policing, or BGP attribute-based QoS; class-based ingress policing and egress shaping; priority queueing and EDRR; RED and WRED; MPLS E-LSPs
- Security: Reverse Path Forwarding (RPF) check, SSH, MD5 support for routing protocols, key rollover, RADIUS, TACACS+; Administrative ACLs
每 PPP/HDLC, cHDLC, Ethernet, IEEE 802.1q, RFC 1483 bridged and routed IP over ATM, RFC 1490 routed IP over Frame Relay, MPLS
每 BGP-4 (RFC 1771), IS-IS (RFC 1195 & ISO/IEC 10589), OSPF v2 (RFC 2328), RIP v2 (RFC 2453)
每 PIM-SM (RFC 2362), IGMP v1, v2, v3 (RFC 3376), SSM (IETF Draft), MBGP (IETF Draft), MSDP (IETF Draft)
每 MPLS-TE, RSVP (RFC 3209), LDP (RFC 3036), VRRP (RFC 2338)
每 BGP/MPLS VPNs (RFC 2547), Layer 2 VPNs (IETF draft)
Configuration and Network Management
每 Industry familiar Command Line Interface (CLI) support via telnet or Secure Shell (SSH)
- Multiple user groups or access levels with definable access privileges
- User authentication via RADIUS, TACACS+, local file
- Transaction based configuration against a configuration database including commits, aborts and ability to roll back unintended changes
- NetOp EMS support for event logs, SNMP traps, interface statistics for troubleshooting and performance monitoring, port views and chassis views
Data Sheets of SmartEdge:
SE400 Data Sheet
SE800 Data Sheet