C8235-G2 – 2×1/10GE SFP+ – 8×2.5GE mGig – 120W PoE Budget – 1x PIM Slot
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C8235-G2 Description
The C8235-G2 is the multigigabit member of the Cisco 8200 Series desktop routers, and the only fixed model in the series with a cellular slot. Eight of its ten copper ports run at 2.5 GE: two UPOE+ WAN ports, two PoE+ Flex ports and four LAN ports, joined by 2x 1/10 GE SFP+ uplinks and one PIM bay. Cisco pairs it with a 66 W AC external adapter that carries no PoE, so powered endpoints need the 230 W AC for PoE adapter and its 120W budget. Forwarding is 19 Gbps with 2.4 Gbps of Threat protection, the same tier the modular C8235-E-G2 holds, and the chassis is a 7 lb desktop unit rather than a rack-mount body.
Quick Specs
|
Parameter |
Specification |
|---|---|
|
Product ID |
C8235-G2 |
|
Platform type |
Desktop form factor |
|
WAN Ports |
2x 1/10 GE SFP+ and 2x 2.5 GE mGig RJ-45 with 2x UPOE+ |
|
Flex Ports |
2x 2.5 GE mGig RJ-45 with 2x PoE+ |
|
LAN Ports |
4x 2.5 GE mGig RJ-45 |
|
Cellular Slot |
1 x PIM |
|
Default power supply model |
66 W AC external adapter; no PoE on the default supply |
|
Maximum PoE budget with the 230 W AC for PoE adapter |
120W |
|
Forwarding throughput |
19 Gbps at 512 bytes |
|
Threat protection throughput |
2.4 Gbps at EMIX |
|
DRAM |
16 GB |
|
Chassis weight |
7 lbs (3.17 kg) |
|
Minimum software release |
Cisco IOS XE Release 17.18.1 |
Product Performance
Key Features
Every RJ-45 port on the chassis is 2.5 GE rather than 1 GE, so a branch cabling Wi-Fi 6 or Wi-Fi 7 access points reaches them at their native rate without a separate switch between router and AP.
A PIM slot on a desktop chassis is unique to this SKU in the 8200 fixed range; C8231-G2, C8225-G2, C8221-G2, C8221L-G2 and C8211-G2 all lack one, so cellular backup on those means an external device.
The 230 W AC for PoE adapter carries 120W against the 30W that C8231-G2 tops out at, which is the difference between powering several full-draw endpoints and powering one.
Threat protection runs at 2.4 Gbps and DRAM is 16 GB, the same figures C8235-E-G2 carries, so on-box inspection capacity does not drop when moving from the rack-mount modular body to this desktop one.
The two WAN mGig ports carry UPOE+ while the two Flex mGig ports carry PoE+, so the power class available depends on which port an endpoint lands in rather than being uniform across the faceplate.
Cisco publishes a second dimension of 2.835 x 12 x 17.56 in. with a rack-mount tray holding the power supply, so a closet install is possible but arrives as an accessory rather than a chassis property.
Application Scenarios
Deployed where branch access points and cameras terminate at 2.5 GE on the router itself, using the eight multigigabit copper ports instead of a separate access switch.
Installed at sites needing a wireless backup path from a desktop chassis, with the PIM slot carrying a 5G or CAT7 LTE pluggable.
Placed where several PoE endpoints draw from the router across its UPOE+ and PoE+ ports, in sites that have ordered the 230 W AC for PoE adapter.
Product Comparison
|
Parameter |
C8235-G2 | ||
|---|---|---|---|
|
Platform type |
Desktop |
Desktop |
Modular, 1 RU |
|
WAN Ports |
2x 1/10 GE SFP+, 2x 2.5 GE mGig (2x UPOE+) |
2x 1/10 GE SFP+, 2x 2.5 GE mGig (1x PoE+) |
2x 1/10 GE SFP+, 2x 2.5 GE mGig (2x UPOE+) |
|
Flex Ports |
2x 2.5 GE mGig (2x PoE+) |
2x 2.5 GE mGig |
Not present on this platform |
|
LAN Ports |
4x 2.5 GE mGig |
4x 1 GE RJ-45 |
Not present on this platform |
|
Cellular Slot |
1 x PIM |
None on this platform |
1 x PIM |
|
Expansion Slots |
No NIM bay |
No NIM bay |
1 x NIM |
|
Default power supply model |
66 W AC external adapter |
66 W AC external adapter |
140 W AC internal |
|
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 |
30W |
120W |
|
Forwarding throughput |
19 Gbps |
19 Gbps |
19 Gbps |
|
Threat protection throughput |
2.4 Gbps |
1 Gbps |
2.4 Gbps |
|
DRAM |
16 GB |
8 GB |
16 GB |
|
Chassis weight |
7 lbs |
5 lbs |
8.36 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-G2 and C8231-G2 look alike on the WAN side and diverge everywhere else. This model puts 2.5 GE on all eight copper ports where C8231-G2 runs its four LAN ports at 1 GE, carries two UPOE+ ports against one PoE+, lifts the PoE ceiling from 30W to 120W, doubles DRAM to 16 GB and raises Threat protection from 1 Gbps to 2.4 Gbps.
- Only one figure is shared across that gap: forwarding at 19 Gbps. A branch measured purely on routing throughput sees no difference, which is why the choice between them is decided by copper speed, powered-endpoint count and inspection load rather than by transport.
- Against C8235-E-G2 the trade is ports for a module bay. Both hold 16 GB DRAM, 2.4 Gbps Threat protection and a 120W PoE ceiling, but the modular model gives up all six Flex and LAN ports to gain a NIM slot and a 140 W internal supply in a 1 RU body.
- For deciding which SKU to order, count the endpoints that need more than 1 GE or more than 30W first, since that pair of numbers separates this model from C8231-G2; then decide whether a WAN module will ever be needed, which is the only reason to move to C8235-E-G2 and lose the copper ports.
Selection Guide
1. When Access Points Need More Than A Gigabit
All eight copper ports run at 2.5 GE here while C8231-G2 drops its four LAN ports to 1 GE; a branch cabling Wi-Fi 6E or Wi-Fi 7 access points saturates a gigabit port and gets the extra headroom natively rather than adding a multigigabit switch.
2. One Hundred Twenty Watts Against Thirty
The PoE ceiling is the widest gap between these two desktop models. C8231-G2 tops out at 30W on its 115 W adapter, enough for one modest endpoint, while the 230 W adapter here carries 120W across UPOE+ and PoE+ ports.
3. Cellular Without An External Device
This is the only fixed 8200 model with a PIM bay, so a site wanting an integrated wireless backup path has no alternative in the desktop range and would otherwise move to a modular -E chassis or add a standalone cellular gateway.
4. Where The Module Bay Wins Instead
C8235-E-G2 matches the memory, inspection and PoE figures but replaces the six Flex and LAN copper ports with a NIM slot; a site whose WAN handoff may change to serial, async or additional fiber should take that chassis and plan separate switching.
5. Power Class Depends On Port Position
UPOE+ is available on the two WAN mGig ports and PoE+ on the two Flex mGig ports, so an endpoint needing the higher class has two landing points rather than four; a patch plan that treats all mGig ports as equivalent will under-power devices on the Flex pair.
PoE Power Planning
|
Planning Item |
Value or Check |
|---|---|
|
PoE on the default supply |
None; the 66 W AC external adapter carries no PoE budget |
|
PoE budget with the upgrade adapter |
120W with the 230 W AC for PoE external adapter |
|
UPOE+ capable ports |
2 of the 2.5 GE mGig RJ-45 WAN ports |
|
PoE+ capable ports |
2 of the 2.5 GE mGig RJ-45 Flex ports |
|
Device count check |
Confirm total endpoint draw across the four powered ports against the 120W budget |
|
Power supply line item |
Confirm the 230 W AC for PoE adapter is on the order whenever any port must deliver power |
Ordering Checklist
|
Check Item |
What to Confirm |
Why It Matters |
|---|---|---|
|
PoE adapter |
Confirm the 230 W AC for PoE external adapter is on the order when any endpoint draws power. |
The 66 W default adapter has no PoE budget, so the powered ports stay dark without it. |
|
Power class per port |
Confirm endpoints needing UPOE+ are patched to the two WAN mGig ports rather than the Flex pair. |
The Flex mGig ports carry PoE+ rather than UPOE+, so a higher-draw device on them will not reach full power. |
|
Cellular pluggable region |
Confirm the PIM matches the deployment region across P-5GS6-R16SA-GL, P-LTEA7-NA, P-LTEA7-EAL and P-LTEA7-JP. |
A pluggable outside its documented region will not attach to the local carrier bands. |
|
Rack-mount tray |
Confirm the rack-mount tray is on the order if the chassis will be racked rather than sitting on a desk. |
Cisco publishes the racked dimension only with that tray, which is a separate accessory. |
|
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. |
|
Site ambient |
Confirm the site stays inside 0 to 40 degrees C at sea level. |
This model is rated 5 degrees lower than C8231-G2 and a shared thermal assumption across the series will be wrong. |
Optional Add-ons
|
Add-on |
Description |
|---|---|
|
230 W AC for PoE adapter |
External adapter that adds the 120W PoE budget. |
|
P-5GS6-R16SA-GL |
5G Sub-6 GHz pluggable, 5G SA Global, for the PIM slot. |
|
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. |
Specifications
| Parameter | Specification | Parameter | Specification |
|---|---|---|---|
| Product ID | C8235-G2 | Series | Cisco 8200 Series Secure Routers |
| Platform type | Desktop form factor | WAN Ports | 2x 1/10 GE SFP+ and 2x 2.5 GE mGig RJ-45 with 2x UPOE+ |
| Flex Ports | 2x 2.5 GE mGig RJ-45 with 2x PoE+ | LAN Ports | 4x 2.5 GE mGig RJ-45 |
| Cellular Slot | 1 x PIM | Expansion Slots | None; only the -E models in this series carry a NIM slot |
| Management port | 1x RJ-45 out-of-band management | Console port | 1x RJ-45 and 1x micro-USB |
| DRAM | 16 GB | Storage | 16 GB |
| Default power supply model | 66 W AC external adapter | Alternative power supplies | 230 W AC for PoE external adapter, which carries the 120W PoE budget |
| Typical power consumption | 27.11 W | Input voltage | AC: 85 to 264 VAC |
| 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) | 1.65 x 8.9 x 12.7 in. (4.19 x 22.60 x 32.26 cm) | Rack units (RU) | Desktop |
| Dimensions with rack-mount tray | 2.835 x 12 x 17.56 in. (7.20 x 30.48 x 44.60 cm) with the tray holding the power supply | Chassis weight | 7 lbs (3.17 kg) |
| Operating temperature | 0 to 40 degrees C at sea level | Storage temperature | -40 to 70 degrees C |
| Relative humidity | 5 to 85 percent operating; 5 to 95 percent non-operating and storage | 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 | Default PoE budget | None; the 66 W AC external adapter carries no PoE |
| Maximum PoE budget with the 230 W AC for PoE adapter | 120W |
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Customer Reviews
Questions & Answers
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Does C8235-G2 have multigigabit LAN ports as well as 10G WAN ports?
-
Which power option gives C8235-G2 its 120W PoE budget?
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Can C8235-G2 accept a NIM card for additional interfaces?
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Is cellular connectivity built into C8235-G2?
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How does C8235-G2 compare with C8231-G2 for security inspection?
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Is C8235-G2 a native 1RU router?
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Would C8235-E-G2 give me the same built-in LAN connections as C8235-G2?
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Are the C8235-G2 IPS and malware functions covered by the hardware purchase?
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