The Cisco ASR-9910-FAN Fan Tray is a critical component for the Cisco ASR 9910 Router, providing high-reliability cooling to support the demanding performance of carrier-class aggregation services. Designed for use with the Cisco ASR 9000 Route Switch Processor 880-LT (RSP880-LT), it ensures optimal thermal management in high-density environments supporting 100 Gigabit Ethernet line cards and advanced Layer 2/Layer 3 services.
System Architecture and Capabilities
- Integrated switch fabric architecture: Distributed switch fabric, multistage low-latency nonblocking architecture, service intelligence and traffic prioritization
- Superior network-timing capabilities: Centralized Building Integrated Timing Supply (BITS), Precision Time Protocol (PTP) or IEEE 1588-2008 through dedicated 10-Mbps or 100-Mbps Ethernet port, Bidirectional Time of Day (ToD) with 10-MHz and 1-pps interfaces
- Highly scalable fabric designed to support high 1-, 10-, and 100-Gbps port densities with built-in scalability for investment protection
- Distributed forwarding-plane architecture allowing line cards to support independent forwarding for enhanced performance and scale
- Memoryless switch fabric providing transparent nonblocking, low-latency packet forwarding
- Virtual output queuing and arbitration offering service intelligence with prioritization of traffic (unicast and multicast), efficient congestion-management mechanism avoiding head-of-line blocking
- Centralized arbiter using efficient credit mechanism to ensure transparent switchover with zero packet loss
- IEEE 1588 support delivering timing services over packet network efficiently and reliably
- Two independent clock source connections: BITS and Synchronization Supply Unit (SSU) DTI offering redundant, centralized network synchronization support
Route Switch Processor Variants
The ASR 9000 RSP 880 is available in RSP880 and RSP880-LT variants, both service-edge-optimized and packet-transport-optimized models. RSP880-LT supports the ASR 9910 Router alongside ASR 9010, ASR 9006, ASR 9904, and ASR 9906. Service-edge-optimized versions provide higher memory for large-scale service deployments. Both support service-optimized and transport-optimized line cards with mixing flexibility.
Software and Services Support
Powered by Cisco IOS XR Software with true software process modularity, protected memory for each process including routing protocols, multiple instances of control, data, and management planes, and distributed route processing. Supports Software-Maintenance-Update (SMU) for bug fixes without service interruption, Field-Programmable Device (FPD) upgrades for FPGAs and ROMmon. Enables Carrier Ethernet applications: Ethernet Services, L2VPN, L3VPN, IPTV, CDNs, mobile backhaul, IPv4/IPv6, multicast, IPoDWDM, SyncE, EOAM, MPLS OAM, ACLs, H-QoS, MPLS TE-FRR, MC-LAG, IRB, NSF/NSR, P2MP-TE, Lawful Intercept, SCH, MGSCP. Multiservice Edge (MSE) and Ethernet MSE (E-MSE) for business VPNs with SLA enforcement, high scale in VRFs, routes, BFD, BGP NSR. Timing synchronization via PTPv2, GPS, DTI, BITS on RSP, SyncE on line cards.
Chassis and Line Card Compatibility
Supports ASR 9904, ASR 9006, ASR 9010, ASR 9910 (RSP880-LT only), ASR 9906 (RSP880-LT only) chassis. Line cards: 5th Generation – A9K-8HG-FLEX-FC, A9K-8HG-FLEX-SE, A9K-8HG-FLEX-TR, A99-4HG-FLEX-FC, A99-4HG-FLEX-SE, A99-4HG-FLEX-TR, A9K-4HG-FLEX-FC, A9K-4HG-FLEX-SE, A9K-4HG-FLEX-TR; 3rd Generation – A99-12X100GE-FC, A99-12X100GE, A99-12X100GE-CM, A99-8X100GE-FC, A99-8X100GE-SE, A99-8X100GE-TR, A99-8X100GE-CM, A9K-8X100GE-FC, A9K-8X100GE-SE, A9K-8X100GE-TR, A9K-8X100GE-CM, A9K-8X100G-LB-SE, A9K-8X100G-LB-TR, A9K-4X100GE-FC, A9K-4X100GE-SE, A9K-4X100GE-TR, A9K-400GE-LAN-FC, A9K-4X100GE, A99-48X10GE-1G-FC, A99-48X10GE-1G-SE, A99-48X10GE-1G-TR, A9K-48X10GE-1G-FC, A9K-48X10GE-1G-SE, A9K-48X10GE-1G-TR, A9K-48X10GE-1G-CM, A9K-24X10GE-1G-FC, A9K-24X10GE-1G-SE, A9K-24X10GE-1G-TR, A9K-24X10GE-1G-CM, A9K-MOD400-FC, A9K-MOD400-SE, A9K-MOD400-TR, A9K-MOD400-CM, A9K-MOD200-FC, A9K-MOD200-SE, A9K-MOD200-TR, A9K-400G-DWDM-TR.
Redundancy and Reliability
- No single point of failure
- 1+1 route switch processor redundancy (same kind required)
- Software redundancy
- SSDs for core dumps reducing MTTR: RSP880 two 32GB SSDs, RSP880-LT two 128GB SSDs
- Embedded eUSB and front-panel USB 2.0 for software images/upgrades/recovery
- Front-panel LEDs for RSP status (active/standby), power, SSD activity