WatchDog WD4500 Series Aggregation Routers
The WatchDog WD4500 Series is a next-generation aggregation router series powered by an industry-leading high-performance multicore processor. It is designed to deliver outstanding concurrent service processing for SD-WAN, cloud, and AI-driven enterprise and carrier networks, ensuring an ideal egress gateway for high-capacity secure communication.
Max Forwarding
58 Gbps
IPSec Performance
24 Gbps
Processor
Multicore
25GE
Feature
SD-WAN
Feature
SRv6
Feature
VSS
Feature
25GE High-Density • SRv6 • IPSec VPN • Cloud-Ready VXLAN • VSS Virtualization
Secure & Intelligent Aggregation Gateway
Built on a robust multicore architecture, the WD4500 series integrates routing, switching, and security into a single platform. It provides deep visibility into link quality and business traffic while ensuring carrier-grade reliability via virtualization and millisecond-level link detection.
High-performance multicore CPU with non-blocking switching architecture
Carrier-grade reliability with Virtual Switching System (VSS) and millisecond BFD detection
Full SD-WAN stack including OpenFlow, Telemetry, and Zero-Touch Provisioning (ZTP)
Advanced forwarding support for SRv6, EVPN, and Cloud-Ready VXLAN architectures
Aggregation Applications
| Scenario | Description |
|---|---|
| Enterprise Aggregation | Centralized hub for large-scale branch connectivity |
| Financial WAN Edge | High-security vertical networks for banking and BFSI |
| Government Extranet | Reliable, high-capacity egress for administrative agencies |
| Cloud Infrastructure | Layer 2 data center interconnection and hybrid DC fabrics |
Software Specification
SD-WAN & Routing
- Unicast: RIP, OSPF, BGP, IS-IS
- IPv6: OSPFv3, BGP4+, IS-ISv6, RIPng
- Segment Routing: SR-MPLS, SRv6 Policy
- EVPN L2VPN & L3VPN Support
- Bandwidth-based ECMP & UCMP
Security Features
- Stateful Inspection Firewall (ASPF)
- DDoS Attack Prevention (SYN/ACK/UDP)
- VPN: IPsec, L2TP, GRE, ADVPN, GDVPN
- Auth: 802.1X, Portal, RADIUS, TACACS+
- Encryption: DES, 3DES, AES, SM1-SM4
Virtualization & HA
- Virtual Switching System (VSS)
- VRRP / VRRPE Redundancy
- BFD for fast failure detection
- NSR (Non-Stop Routing)
- VXLAN & Ethernet VPN (EVPN)
Layer 2 Switching
- 802.1Q VLAN & Guest VLAN
- STP / RSTP / MSTP
- MAC Management & Port Security
- Voice VLAN Support
- Port Mirroring & Isolation
QoS & Management
- NETCONF, OpenFlow, Telemetry
- Zero-Touch Provisioning (ZTP)
- Congestion Management: WFQ, CBQ
- gRPC Telemetry Support
- USB Auto-Config & Zero-Touch
Multicast Features
- IGMP v1/v2/v3 & Snooping
- PIM-DM, PIM-SM, PIM-SSM
- Multicast VPN (MVPN)
- MSDP support
- MLDv1/v2 & Snooping
Aggregation Technical Matrix
Hardware Specification
High-capacity technical hardware matrix for the WD4500 Aggregation Series
| Feature | WD4520-X1 | WD4540-X1 | WD4540-X1-HI | WD4510-X1 | WD4510E-X1 | WD4520-DP |
|---|---|---|---|---|---|---|
| Forwarding Performance (IMIX) | 25 Gbps | 35 Gbps | 58 Gbps | 5.8 Gbps | 10 Gbps | 6 Gbps |
| Forwarding Performance with ACL+NAT+QoS (IMIX) | 11 Gbps | 22 Gbps | 27 Gbps | 2.5 Gbps | 5.5 Gbps | 5 Gbps |
| IPSec Forwarding Performance (1400 byte) | 10 Gbps | 16 Gbps | 24 Gbps | 1.8 Gbps | 5 Gbps | 4.4 Gbps |
| CPU | 1.8 GHz | 1.8 GHz | 1.8 GHz | 1.2 GHz | 2.2 GHz | 1.2 GHz |
| Memory | 4 GB / 8 GB | 4 GB / 8 GB | 4 GB / 8 GB | 2 GB | 4 GB | 2 GB |
| Flash | 4 GB or 8 GB | 4 GB or 8 GB | 4 GB or 8 GB | 512 MB / 32 GB | 4 GB | 512 MB / 32 GB |
| USB 2.0 Port | 1 | 1 | 1 | 1 | 1 | 1 |
| Console Port | 1 | 1 | 1 | 1 | 1 | 1 |
| WAN Ports | 6*10GE SFP+, 8*GE Copper | 5*10GE SFP+, 1*GE Combo, 8*GE Copper | 4*25GE (SFP28), 16*10GE (SFP+), 10*GE Copper | 2*GE Copper, 2*GE Combo, 2*SFP | 3*10GE (SFP+), 2*GE Combo | 4*GE Combo, 2*SFP |
| LAN Ports | 8*1/2.5GE Copper | N/A | N/A | N/A | 8*GE (RJ-45) | N/A |
| SIC Slots | 4 | 4 | 4 | 4 | 4 | 4 |
| HMIM Slots | 2 | 4 | 4 | N/A | N/A | 2 |
| Maximum Power Consumption | 150 W | 300 W | 300 W | 54 W | 54 W | 150 W |
| Power Redundancy | AC/DC | AC/DC | AC/DC | N/A | AC/DC | AC/DC |
| Power Input | AC 100-240V, DC -48 to -60V | AC 100-240V | AC 100-240V, DC -48 to -60V | AC 100-240V | AC 100-240V | AC 100-240V, DC -48 to -60V |
| Rack Height | 1 RU | 2 RU | 2 RU | 1 RU | 1 RU | 1 RU |
| Dimensions (H * W * D) | 44.2 * 440 * 470 mm | 88.1 * 440 * 480 mm | 88.1 * 440 * 480 mm | 43.6 * 440 * 360 mm | 44.2 * 440 * 320 mm | 44.2 * 440 * 470 mm |
| Operating Temperature | 0°C to 55°C | 0°C to 55°C | 0°C to 55°C | 0°C to 55°C | 0°C to 55°C | 0°C to 55°C |
WD4520-X1
- Forwarding Performance (IMIX)25 Gbps
- Forwarding Performance with ACL+NAT+QoS (IMIX)11 Gbps
- IPSec Forwarding Performance (1400 byte)10 Gbps
- CPU1.8 GHz
- Memory4 GB / 8 GB
- Flash4 GB or 8 GB
- USB 2.0 Port1
- Console Port1
- WAN Ports6*10GE SFP+, 8*GE Copper
- LAN Ports8*1/2.5GE Copper
- SIC Slots4
- HMIM Slots2
- Maximum Power Consumption150 W
- Power RedundancyAC/DC
- Power InputAC 100-240V, DC -48 to -60V
- Rack Height1 RU
- Dimensions (H * W * D)44.2 * 440 * 470 mm
- Operating Temperature0°C to 55°C
WD4540-X1
- Forwarding Performance (IMIX)35 Gbps
- Forwarding Performance with ACL+NAT+QoS (IMIX)22 Gbps
- IPSec Forwarding Performance (1400 byte)16 Gbps
- CPU1.8 GHz
- Memory4 GB / 8 GB
- Flash4 GB or 8 GB
- USB 2.0 Port1
- Console Port1
- WAN Ports5*10GE SFP+, 1*GE Combo, 8*GE Copper
- LAN PortsN/A
- SIC Slots4
- HMIM Slots4
- Maximum Power Consumption300 W
- Power RedundancyAC/DC
- Power InputAC 100-240V
- Rack Height2 RU
- Dimensions (H * W * D)88.1 * 440 * 480 mm
- Operating Temperature0°C to 55°C
WD4540-X1-HI
- Forwarding Performance (IMIX)58 Gbps
- Forwarding Performance with ACL+NAT+QoS (IMIX)27 Gbps
- IPSec Forwarding Performance (1400 byte)24 Gbps
- CPU1.8 GHz
- Memory4 GB / 8 GB
- Flash4 GB or 8 GB
- USB 2.0 Port1
- Console Port1
- WAN Ports4*25GE (SFP28), 16*10GE (SFP+), 10*GE Copper
- LAN PortsN/A
- SIC Slots4
- HMIM Slots4
- Maximum Power Consumption300 W
- Power RedundancyAC/DC
- Power InputAC 100-240V, DC -48 to -60V
- Rack Height2 RU
- Dimensions (H * W * D)88.1 * 440 * 480 mm
- Operating Temperature0°C to 55°C
WD4510-X1
- Forwarding Performance (IMIX)5.8 Gbps
- Forwarding Performance with ACL+NAT+QoS (IMIX)2.5 Gbps
- IPSec Forwarding Performance (1400 byte)1.8 Gbps
- CPU1.2 GHz
- Memory2 GB
- Flash512 MB / 32 GB
- USB 2.0 Port1
- Console Port1
- WAN Ports2*GE Copper, 2*GE Combo, 2*SFP
- LAN PortsN/A
- SIC Slots4
- HMIM SlotsN/A
- Maximum Power Consumption54 W
- Power RedundancyN/A
- Power InputAC 100-240V
- Rack Height1 RU
- Dimensions (H * W * D)43.6 * 440 * 360 mm
- Operating Temperature0°C to 55°C
WD4510E-X1
- Forwarding Performance (IMIX)10 Gbps
- Forwarding Performance with ACL+NAT+QoS (IMIX)5.5 Gbps
- IPSec Forwarding Performance (1400 byte)5 Gbps
- CPU2.2 GHz
- Memory4 GB
- Flash4 GB
- USB 2.0 Port1
- Console Port1
- WAN Ports3*10GE (SFP+), 2*GE Combo
- LAN Ports8*GE (RJ-45)
- SIC Slots4
- HMIM SlotsN/A
- Maximum Power Consumption54 W
- Power RedundancyAC/DC
- Power InputAC 100-240V
- Rack Height1 RU
- Dimensions (H * W * D)44.2 * 440 * 320 mm
- Operating Temperature0°C to 55°C
WD4520-DP
- Forwarding Performance (IMIX)6 Gbps
- Forwarding Performance with ACL+NAT+QoS (IMIX)5 Gbps
- IPSec Forwarding Performance (1400 byte)4.4 Gbps
- CPU1.2 GHz
- Memory2 GB
- Flash512 MB / 32 GB
- USB 2.0 Port1
- Console Port1
- WAN Ports4*GE Combo, 2*SFP
- LAN PortsN/A
- SIC Slots4
- HMIM Slots2
- Maximum Power Consumption150 W
- Power RedundancyAC/DC
- Power InputAC 100-240V, DC -48 to -60V
- Rack Height1 RU
- Dimensions (H * W * D)44.2 * 440 * 470 mm
- Operating Temperature0°C to 55°C
Aggregation Series Advantages
High Performance
58 Gbps Aggregation Capacity
Carrier-Grade
VSS & Hardware Redundancy
Next-Gen Ready
SRv6 & Cloud Interconnect
SD-WAN Ready
Full SDN Stack & Telemetry