C8235-E-G2 – 2×1/10GE SFP+ – 2×2.5GE mGig UPOE+ – 1x NIM Slot – 16 GB DRAM
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C8235-E-G2 Description
The C8235-E-G2 is the security-services tier of the Cisco 8200 Series modular routers, a 1RU branch platform with 2x 1/10 GE SFP+ and 2x 2.5 GE mGig RJ-45 UPOE+ WAN ports plus one NIM slot and one PIM cellular slot. It is one of a matched pair with C8231-E-G2, and the two are identical in ports, slots, power, chassis and software floor; what separates them is 16 GB of DRAM against 8 GB and 2.4 Gbps of Threat protection throughput against 1 Gbps. Forwarding, IPsec and SD-WAN figures are the same 19, 5 and 4 Gbps on both, so the premium here buys inspection capacity rather than routing capacity. The default 140 W AC internal supply carries no PoE, and the 150 W AC for PoE upgrade adds a 120W budget.
Quick Specs
|
Parameter |
Specification |
|---|---|
|
Product ID |
C8235-E-G2 |
|
Platform type |
Modular platform, 1 RU |
|
WAN Ports |
2x 1/10 GE SFP+ and 2x 2.5 GE mGig RJ-45 with 2x UPOE+ |
|
Expansion Slots |
1 x NIM |
|
Cellular Slot |
1 x PIM |
|
Default power supply model |
140 W AC internal; no PoE on the default supply |
|
Maximum PoE budget with the 150 W AC for PoE adapter |
120W |
|
Threat protection throughput |
2.4 Gbps at EMIX |
|
Forwarding throughput |
19 Gbps at 512 bytes |
|
DRAM |
16 GB |
|
Chassis weight |
8.36 lbs (3.79 kg) |
|
Minimum software release |
Cisco IOS XE Release 17.18.1 |
Product Performance
Key Features
Threat protection runs at 2.4 Gbps against the 1 Gbps of the matched model, and since Cisco measures that figure with NAT, NGFW, IPS, URL filtering and malware protection all enabled, the gap is what a branch actually gets when the full security stack is turned on.
DRAM is 16 GB rather than 8 GB, which is the resource that supports running those inspection services concurrently rather than choosing between them, and it is fixed at order time with no field upgrade documented.
The NIM slot takes WAN, LAN, serial or async cards after deployment, so a branch whose circuit type changes keeps the chassis; the fixed models in this series have no bay at all.
Beyond the 140 W AC internal default, Cisco lists a 150 W AC for PoE adapter, a secondary PSU adapter option, a 150 W AC-DC and a 150 W DC-DC supply, so AC, DC and PoE-capable configurations all come from the same part number.
The -5 to 55 degrees C NEBS range is available but Cisco notes it requires an additional third fan assembly, so carrier placement is a two-line order rather than a rating the chassis carries out of the box.
At 1 RU and 8.36 lbs this is a rack-mount chassis, while C8235-G2 and C8231-G2 are desktop form factors that need a tray to rack; a wiring closet standardising on rack units avoids that accessory here.
Application Scenarios
Deployed where a mid-size branch terminates its own internet breakout and runs NAT, firewall, intrusion prevention, URL filtering and malware protection on the router rather than backhauling to a hub.
Installed where the WAN handoff is not final, with the NIM slot holding a serial, async or additional Ethernet card once the carrier delivery is known.
Placed in cabinets that require the NEBS temperature range, ordered together with the additional third fan assembly that range depends on.
Product Comparison
|
Parameter |
C8235-E-G2 | ||
|---|---|---|---|
|
Platform type |
Modular, 1 RU |
Modular, 1 RU |
Fixed, desktop |
|
WAN Ports |
2x 1/10 GE SFP+, 2x 2.5 GE mGig (2x UPOE+) |
2x 1/10 GE SFP+, 2x 2.5 GE mGig (2x UPOE+) |
2x 1/10 GE SFP+, 2x 2.5 GE mGig (2x UPOE+) |
|
Flex ports |
Not present on this platform |
Not present on this platform |
2x 2.5 GE mGig (2x PoE+) |
|
LAN ports |
Not present on this platform |
Not present on this platform |
4x 2.5 GE mGig |
|
Expansion Slots |
1 x NIM |
1 x NIM |
No NIM bay |
|
Default power supply model |
140 W AC internal |
140 W AC internal |
66 W AC external adapter |
|
Default PoE budget |
None; the default supply carries no PoE |
None; the default supply carries no PoE |
None; the default supply carries no PoE |
|
Maximum PoE budget with the PoE adapter |
120W |
120W |
120W |
|
Forwarding throughput |
19 Gbps |
19 Gbps |
19 Gbps |
|
IPsec throughput |
5 Gbps |
5 Gbps |
5 Gbps |
|
SD-WAN throughput |
4 Gbps |
4 Gbps |
4 Gbps |
|
Threat protection throughput |
2.4 Gbps |
1 Gbps |
2.4 Gbps |
|
DRAM |
16 GB |
8 GB |
16 GB |
|
Chassis weight |
8.36 lbs |
8.36 lbs |
7 lbs |
|
Minimum software release |
Cisco IOS XE Release 17.18.1 |
Cisco IOS XE Release 17.18.1 |
Cisco IOS XE Release 17.18.1 |
- C8235-E-G2 and C8231-E-G2 are the same router on every published line except two. Ports, NIM and PIM slots, all four power supply options, the 120W PoE budget, the 1 RU chassis at 8.36 lbs, the route and tunnel tables and the software floor are identical; only DRAM at 16 GB against 8 GB and Threat protection at 2.4 Gbps against 1 Gbps differ.
- That makes the choice a single question about security services rather than a hardware comparison. Forwarding, IPsec and SD-WAN are 19, 5 and 4 Gbps on both, so a branch that routes and encrypts but sends inspection elsewhere gets identical measured performance from C8231-E-G2.
- Against C8235-G2 the boundary moves to the module bay and the faceplate. That model matches this one on 16 GB DRAM, 2.4 Gbps threat protection and all four throughput figures, and adds six more mGig ports as Flex and LAN, but it has no NIM bay and arrives as a desktop unit on a 66 W external adapter rather than a 140 W internal supply.
- For deciding which SKU to order, settle whether inspection throughput above 1 Gbps is needed, because that alone separates the two modular models; then decide whether a module bay or six extra copper ports matters more, since that is the only thing C8235-G2 trades away.
Selection Guide
1. When One Gigabit Of Inspection Is Enough
C8231-E-G2 matches this router on every routing and encryption figure and differs only at 1 Gbps of threat protection and 8 GB of DRAM; a branch whose security services run below that ceiling, or which inspects at a regional hub instead, gets the same NIM slot and the same 120W PoE budget without paying for headroom it will not use.
2. Memory Cannot Be Added Later
Cisco documents 16 GB here and 8 GB on the matched model with no field upgrade path between them, so a site expecting its service set to grow past what 8 GB supports has to take this SKU at purchase rather than plan an upgrade.
3. Where Six Copper Ports Beat A Module Bay
C8235-G2 carries the identical 16 GB and 2.4 Gbps figures plus two Flex and four LAN mGig ports, giving eight copper ports against this router’s two; a branch needing local switching more than a WAN card should take it, accepting a desktop chassis and the loss of the NIM bay.
4. The Third Fan Assembly Is Part Of A NEBS Order
The -5 to 55 degrees C range is documented as requiring an additional third fan assembly, so a carrier-site design has a hardware dependency beyond the router itself, and a site inside 0 to 45 degrees C at 6000 feet avoids that dependency entirely.
5. Rack Units Against Desktop Trays
This chassis is 1 RU at 8.36 lbs while both fixed 8200 models are desktop units needing a rack-mount tray to reach 2.835 in. of height; a closet already standardised on rack units gets a cleaner install here even where the port count would suit the fixed models.
PoE Power Planning
|
Planning Item |
Value or Check |
|---|---|
|
PoE on the default supply |
None; the 140 W AC internal default supply carries no PoE budget |
|
PoE budget with the upgrade adapter |
120W with the 150 W AC for PoE external adapter |
|
UPOE+ capable ports |
2 of the 2.5 GE mGig RJ-45 WAN ports |
|
Device count check |
Confirm total endpoint draw across the two UPOE+ ports against the 120W budget |
|
Power supply line item |
Confirm the 150 W AC for PoE adapter is on the order whenever any port must deliver power |
|
Alternative supply paths |
A secondary PSU adapter, a 150 W AC-DC and a 150 W DC-DC supply are listed alongside the PoE adapter |
Ordering Checklist
|
Check Item |
What to Confirm |
Why It Matters |
|---|---|---|
|
PoE adapter |
Confirm the 150 W AC for PoE external adapter is on the order when any endpoint draws power. |
The 140 W internal default supply has no PoE budget, so the UPOE+ ports stay unpowered without it. |
|
DRAM tier at order time |
Confirm 16 GB is the required tier rather than the 8 GB of the matched model. |
Cisco documents no field memory upgrade between the two SKUs, so the choice is permanent. |
|
NIM card selection |
Confirm the planned module is one of C-NIM-WAN-2X, C-NIM-WAN-4S, C-NIM-4X, C-NIM-8T, C-NIM-8M, NIM-1T, NIM-2T, NIM-4T, NIM-16A or NIM-24A. |
The 8200 Series lists no SM-form-factor or DSL modules, so a card from the 8300 catalogue will not fit. |
|
Third fan assembly for NEBS |
Confirm the additional third fan assembly is on the order if the site requires the -5 to 55 degrees C range. |
Cisco ties that range to the extra assembly, so a NEBS site without it falls back to the commercial envelope. |
|
Software image floor |
Confirm the image is Cisco IOS XE Release 17.18.1 or later and the manager is 20.18.1 or later. |
Staging below the floor leaves the router unsupported after installation. |
|
Storage capacity |
Confirm whether the default 16 GB is sufficient or whether the 600 GB option is required. |
Storage is selected at order time and a later change means a parts order. |
Optional Add-ons
|
Add-on |
Description |
|---|---|
|
C-NIM-WAN-2X |
2-port 1/10 Gbps SFP/SFP+ WAN module, NIM with WAN MACsec. |
|
C-NIM-WAN-4S |
4-port 1 Gbps SFP WAN module, NIM with WAN MACsec. |
|
4-port 1/10 Gbps SFP/SFP+ switch NIM with LAN/WAN MACsec and optional Layer 3. | |
|
8-port 100 Mbps/1 Gbps switch NIM with LAN/WAN MACsec and optional Layer 3. | |
|
8-port 100 Mbps/1/2.5 Gbps switch NIM with UPOE+, LAN/WAN MACsec and optional Layer 3. | |
|
1-port serial high-speed WAN interface card. | |
|
2-port serial high-speed WAN interface card. | |
|
4-port serial high-speed WAN interface card. | |
|
16-port asynchronous module. | |
|
24-port asynchronous module. | |
|
P-5GS6-R16SA-GL |
5G Sub-6 GHz pluggable, 5G SA Global. |
|
P-LTEA7-NA |
CAT7 LTE Advanced pluggable, North America. |
|
P-LTEA7-EAL |
CAT7 LTE Advanced pluggable, EMEA, APAC and LATAM. |
|
P-LTEA7-JP |
CAT7 LTE Advanced pluggable, Japan. |
|
150 W AC for PoE adapter |
External adapter that adds the 120W PoE budget. |
|
150 W DC-DC supply |
DC input option alongside the AC supplies. |
|
600 GB storage |
Capacity option above the 16 GB default. |
Specifications
| Parameter | Specification | Parameter | Specification |
|---|---|---|---|
| Product ID | C8235-E-G2 | Series | Cisco 8200 Series Secure Routers |
| Platform type | Modular platform, 1 RU | WAN Ports | 2x 1/10 GE SFP+ and 2x 2.5 GE mGig RJ-45 with 2x UPOE+ |
| Flex Ports | Not present on this platform | LAN Ports | Not present on this platform |
| Expansion Slots | 1 x NIM | Cellular Slot | 1 x PIM |
| Management port | 1x RJ-45 out-of-band management | Console port | 1x RJ-45 and 1x micro-USB |
| DRAM | 16 GB | Storage | 16 GB, upgradeable to 600 GB |
| Default power supply model | 140 W AC internal | Default PoE budget | None; the 140 W AC internal supply carries no PoE |
| Maximum PoE budget with the 150 W AC for PoE adapter | 120W | Alternative power supplies | Secondary PSU external adapter, 150 W AC-DC, 150 W DC-DC |
| Typical power consumption | 34.20W | Input voltage | AC: 85 to 264 VAC; DC: -40 to 72V, 48V nominal |
| Forwarding (512B) | 19 Gbps | IPsec (512B) | 5 Gbps |
| SD-WAN (512B) | 4 Gbps | Threat protection (EMIX) | 2.4 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, NGFW, Intrusion Prevention System, URL Filtering and Advanced Malware Protection enabled |
| IPv4/IPv6 routes | 1.5M | IPsec tunnels | 700 |
| IPv4 ACLs | 3000 | IPv4 ACEs | 15,000 |
| NAT sessions | 1.5M | VRF instances | 4000 |
| Dimensions (H x D x W) | 1.73 x 17.25 x 11.81 in. (4.39 x 43.82 x 30.00 cm) | Rack units (RU) | 1 RU |
| Chassis weight | 8.36 lbs (3.79 kg) | Operating temperature | 0 to 40 degrees C up to 10,000 feet; 0 to 45 degrees C up to 6000 feet |
| NEBS operating temperature | -5 to 55 degrees C up to 6000 feet, with an additional third fan assembly required | Storage temperature | -40 to 70 degrees C |
| Relative humidity | 5 to 85 percent operating; 5 to 95 percent non-operating and storage | Supported modules | C-NIM-WAN-2X, C-NIM-WAN-4S, C-NIM-4X, C-NIM-8T, C-NIM-8M, NIM-1T, NIM-2T, NIM-4T, NIM-16A, NIM-24A and the four cellular pluggables |
| Minimum device OS | Cisco IOS XE Release 17.18.1 and later | Minimum SD-WAN Manager release | Cisco Catalyst SD-WAN Release 20.18.1 and later |
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Quality Certifications
Customer Reviews
Questions & Answers
-
Which existing serial or asynchronous NIMs can I reuse with C8235-E-G2?
-
Can C8235-E-G2 take an SM-X service module from an older router?
-
What does C8235-E-G2 add over C8231-E-G2?
-
What must I order to use PoE on C8235-E-G2?
-
Can C8235-E-G2 provide 19 Gbps with IPS and URL filtering enabled?
-
Does C8235-E-G2 have dedicated LAN ports without an expansion card?
-
How much local storage can be configured on C8235-E-G2?
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What is required for the extended C8235-E-G2 NEBS temperature range?
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Which software and license path should I plan for C8235-E-G2 SD-WAN?
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