C8131-G2 – 1x1GE WAN + 1x1GE Combo – 2x Flex + 2x LAN – SD-WAN Capable

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C8131-G2 Description
The C8131-G2 is a Cisco 8100 Series Secure Router for small branches that join an SD-WAN fabric from a fanless chassis. The router has six 1GE ports (one RJ-45 WAN, one RJ-45/SFP combo WAN, two Flex and two LAN), 1.9 Gbps of forwarding, 1.5 Gbps of IPsec across 250 tunnels, 900 Mbps of SD-WAN and 1 Gbps of Threat Protection. The 8100 Series chassis has no NIM or SM bay and this model has no cellular option, so every WAN path is Ethernet.
Quick Specs
|
Parameter |
Specification |
|---|---|
|
Product ID |
C8131-G2 |
|
Platform type |
Fanless small-branch router |
|
WAN ports |
1x 1GE RJ-45 and 1x 1GE RJ-45/SFP combo |
|
Flex ports |
2 x GE RJ-45 |
|
LAN ports |
2x 1GE RJ-45 |
|
SD-WAN capable |
Yes |
|
SD-WAN throughput |
900 Mbps at 512 bytes |
|
Threat protection throughput |
1 Gbps at EMIX |
|
Forwarding throughput |
1.9 Gbps at 512 bytes |
|
IPv4 routes |
500K |
|
External power supply |
30W/66W external power supply |
|
Weight |
3.5 lb |
|
Minimum software release |
Cisco IOS XE 26.1.1 |
Product Performance
Key Features
The body has no fan and measures 1.09 x 7.8 x 10.8 in at 3.5 lb. It mounts on a rack, desktop, under a desk, on DIN-rail or on a wall.
The router runs 900 Mbps of SD-WAN with IPsec, QoS, deep packet inspection and Flexible NetFlow enabled. Device software starts at Cisco IOS XE 26.1.1.
Threat Protection throughput is 1 Gbps with direct internet access NAT, zone-based firewall, intrusion prevention, URL filtering and advanced malware protection all running.
The higher 8100 scale tier gives 500K IPv4 routes, 500K IPv6 routes, 10K ACEs and 4K VRFs. Separate routing tables for guest, corporate and device traffic fit within that.
One of the two WAN ports is an RJ-45/SFP combo, so a second circuit can arrive on either copper or fibre. The other WAN port is 1GE RJ-45.
Typical power is 16W from an external supply rated 30W or 66W. Operating temperature runs from 0 to 40 degrees C at sea level.
Application Scenarios
A small branch that terminates an SD-WAN overlay runs the router’s 900 Mbps SD-WAN feature set on its two WAN ports, while the two LAN ports connect the site switch.
In a small retail or office site, the router keeps guest, corporate and device traffic in separate VRFs within its 4K VRF capacity and applies zone-based firewall policy at the internet breakout.
Where floor space is limited, the fanless 3.5 lb chassis mounts on a wall, under a desk or on DIN-rail, and its 16W typical draw keeps the site’s power load small.
Product Comparison
|
Parameter |
C8131-G2 | ||
|---|---|---|---|
|
LAN ports |
2x 1GE RJ-45 |
2x 1GE RJ-45 |
6x 1GE RJ-45 |
|
Cellular |
Not applicable |
Not applicable |
Optional pluggable module, LTE or 5G |
|
Forwarding (512B) |
1.9 Gbps |
1.9 Gbps |
5.6 Gbps |
|
SD-WAN capable |
Yes |
Yes (from IOS XE 26.2.1) |
Yes |
|
Threat protection (EMIX) |
1 Gbps |
Not published |
1 Gbps |
|
Number of IPv4 routes |
500K |
280K |
500K |
|
Number of VRFs |
4K |
1K |
4K |
|
Typical power consumption |
16W |
16W |
23W |
|
Weight |
3.5 lb |
3.5 lb |
5.1 lb |
C8131-G2 and C8130-G2 share the same six-port fanless chassis, 1.9 Gbps of forwarding and 16W of typical draw, and Cisco separates them on capability: C8131-G2 supports SD-WAN from its Cisco IOS XE 26.1.1 floor and publishes 1 Gbps of Threat Protection, while C8130-G2 reaches SD-WAN only from Cisco IOS XE 26.2.1 and has no Threat Protection figure. The table tier also rises from 280K IPv4 routes and 1K VRFs on C8130-G2 to 500K routes and 4K VRFs here, so a branch that segments traffic into many VRFs needs this model. A site that needs six LAN ports, 5.6 Gbps of forwarding or a pluggable LTE or 5G module moves to C8151-G2, which weighs 5.1 lb against 3.5 lb and draws 23W against 16W.
Ordering Checklist
- External power supply: Choose the 30W or the 66W external supply on the order. Both ratings are listed for C8131-G2, so the wattage is not fixed until selected.
Optional Add-ons
|
Add-on |
Description |
|---|---|
|
30W external power supply |
Lower-wattage supply option listed for this model. |
|
66W external power supply |
Higher-wattage supply option listed for this model. |
Specifications
| Parameter | Specification | Parameter | Specification |
|---|---|---|---|
| Product ID | C8131-G2 | Series | Cisco 8100 Series Secure Routers |
| Product type | Fanless small-branch router | WAN ports | 1x 1GE RJ-45 and 1x 1GE RJ-45/SFP combo |
| Flex ports | 2 x GE RJ-45 | LAN ports | 2x 1GE RJ-45 |
| Cellular | None on this platform | Expansion slots | None; the 8100 Series has no NIM or SM bay |
| Management port | 1 x RJ-45 console | Storage interface | 1 x USB Type C 3.0 for out-of-band management |
| External power supply | 30W/66W external power supply | Typical power consumption | 16W |
| SD-WAN capable | Yes | Forwarding (512B) | 1.9 Gbps |
| IPsec (512B) | 1.5 Gbps | SD-WAN (512B) | 900 Mbps |
| Threat protection (EMIX) | 1 Gbps | SD-WAN measurement basis | IPsec, Quality of Service, deep packet inspection and Flexible NetFlow enabled |
| Threat protection measurement basis | 100% Direct Internet Access NAT, Zone-Based Firewall, Intrusion Prevention System, URL Filtering and Advanced Malware Protection enabled | IPv4 routes | 500K |
| IPv6 routes | 500K | IPv4 ACLs | 4K |
| IPv4 ACEs | 10K | NAT sessions | 100K |
| VRFs | 4K | IPsec tunnels | 250 |
| Dimensions (H x W x D) | 1.09 x 7.8 x 10.8 in | Weight | 3.5 lb |
| Operating temperature | 0 to 40°C at sea level, with 1 degree C of derating per 1000 feet above sea level | Storage temperature | -40 to 70°C |
| Operating humidity | 5 to 85 percent relative humidity, noncondensing | Operating altitude | 0 to 10,000 feet (0 to 3048 m) |
| Storage altitude | 0 to 15,000 feet (0 to 4572 m) | MTBF | Greater than 100,000 hours |
| Mounting | Rackmount, desktop, under desk, DIN-rail or wall mount | Minimum software release | Cisco IOS XE 26.1.1 |
| Minimum SD-WAN manager release | Cisco Catalyst SD-WAN Release 26.1.1 |
Quality Certifications
Customer Reviews
Questions & Answers
-
What IPsec throughput is C8131-G2 rated for?
-
Which external AC adapter is the default order configuration for C8131-G2?
-
From which release is platform-based licensing supported on C8131-G2?
-
Which license tags does C8131-G2 use in SD-Routing mode?
-
Which license tags apply to C8131-G2 in autonomous mode?
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