Alcatel Lucent 7750 Service Router (SR) series business router

Product Overview

Hardware platform: including three types of chassis: SR-7, SR-12, and SR-12e; Based on FP3 NP chip, the maximum exchange capacity of the whole machine can reach 9.6 Tbps.

Port capability: Supports up to 36 × 100GbE, 60 × 40GbE, 360 × 10GbE, and supports a variety of Ethernet and multi service interface cards.

The protocol stack fully supports IPv4/IPv6 dual stack, MPLS full set of protocols, Ethernet, PBB operator backbone bridge MPLS‑TP； Hardware redundancy control, switching matrix, and line cards achieve high reliability.

Application scenario: Multi service edge router, covering end-user business, enterprise business, cloud business, and data center interconnection.

Main characteristics and business benefits

1. QoS (Quality of Service)

HQQoS layered QoS: supports multi-level scheduling of ports, user groups, users, and services; Can be combined with MPLS TE tunnel for bandwidth reservation scheduling.

WRED/RED queue congestion avoidance; Based on L2-L3-L4 multi field advanced traffic classification.

Bandwidth control: port speed limit, ACL classification speed limit; CAR promises access speed, shaping, and policing.

2. VPN Virtual Private Network

L2TP and GRE encapsulated tunnels;

MPLS L3 VPN（VPRN）， Support multiple AS domains RFC2547bis;

Multicast VPN (MD mode);

MPLS Layer 2 VPN: CC, SVC, Martini, Kompella;

VPLS (Point to Multipoint Layer 2 VPN).

3. Layer 3 routing protocol

IPv4: Static RIP v1/v2、OSPF、IS‑IS、BGP‑4；

IPv6: Static RIPng、OSPFv3、IS‑ISv6、MP‑BGP；

ECMP equivalent multi-path; IPv6 over IPv4 tunnel;

VRRP（IPv4+IPv6）； BFD bidirectional forwarding detection.

4. Multicast capability

IGMPv1/v2/v3； PIM‑DM/SM/SSM； MSDP inter domain multicast; MBGP multicast BGP.

5. High availability architecture

Control plane and data plane separation architecture, eliminating single point of failure;

Redundant switching matrix, redundant management module, redundant power supply;

NSR uninterrupted routing, NSS uninterrupted service, ISSU uninterrupted service software upgrade;

Modular distributed software and hardware architecture.

6. SDN capability

Supports OpenFlow 1.0 and 1.3, achieving separation of transfer surface and control surface.

7. Management System

CLI（SSH/Console）； File management supports FTP/TFTP/SFTP;

SNMP v1/v2c/v3、RMON； Control of command permissions and operation audit logs using the Radius command;

Supports TACACS+and Syslog.

Three types of chassis hardware specifications

Table

Parameter SR-7 SR-12 SR-12e

I/O slot 5 10 9

Maximum port capacity 5 × 100G/15 × 40G/100 × 10G/240GE 10 × 100G/30 × 40G/200 × 10G/480GE 9 × 100G/27 × 40G/180 × 10G/432GE

The total throughput of the switching matrix is 2 Tbps, 7.2 Tbps (up to 9.6 Tbps), and 4 Tbps

Packet forwarding rate 2976 Mpps 10713.6 Mpps 5952 Mpps

Routing table size IPv4: 22 million; IPv6:12 million reposts: IPv4 2 million, IPv6 1 million, IPv4.22 million; IPv6:12 million reposts: IPv4 2 million, IPv6 1 million, IPv4.22 million; IPv6: 12 million reposts: 2 million for IPv4, 1 million for IPv6

Chassis height 14U 22U 8U

Processor Memory Cavium 10 Core 1.5 GHz, 16 GB DDR3 Cavium 10 Core 1.5 GHz, 16 GB DDR3 Cavium 10 Core 1.5 GHz, 16 GB DDR3 Cavium 10 Core 1.5 GHz, 16 GB DDR3

Environmental conditions 5-40 ℃, humidity 5-85%, maximum altitude 4000m 5-40 ℃, humidity 5-85%, maximum altitude 4000m 5-40 ℃, humidity 5-85%, maximum altitude 4000m

All support 19 inch EIA standard racks; Standard DC power version, AC power is an optional accessory.

Interface board, optical module, software authorization accessories

IMM integrated multimedia module: multiple combinations, such as 1 × 100G CFP+, 3 × 40G QSFP+, 20 × 10G SFP+, 48 × GE SFP, etc;

Optical transceivers: 100G-LR4, 40G-LR4, 10G-SR/LR, Gigabit SX/LX, electrical port SFP;

Software License E-LTU: IMM VPRN Business Authorization, Release 13.0 System Software Authorization;

Swap matrix and master control bundle kit (SFM5-7/SFM5-12/SFM5-12e).

Protocol and Standards

The document comprehensively lists a large number of RFCs: BGP family IPv4/IPv6、 Multicast MPLS、PPP、DHCP、NAT、BFD、VRRP； MIB； Safe RADIOUS/TACACS+/SSH; EMC safety certification: EN60950-1, CE, UL, CB, laser safety standards.

Supplementary Background

7750 SR is the flagship business router of Lucent SR-OS and shares the operating system with 7450 ESS

7450 ESS focuses on carrier Ethernet PBB/VPLS， Metropolitan business aggregation;

7750 SR focuses on complete advanced three-layer routing (BGP, OSPF, IS-IS, MPLS TP) as a PE business edge router, used for operator PE, large enterprises, and cloud networks.