CISCO3925/K9, Cisco 3925 Router, 3xGE/4xEHWIC/1GB DRAM

 What capacity increases can I expect for collaboration applications on the CISCO3925/K9 platforms?

Capacity increases vary across the different collaboration applications. Please refer to the applicable data sheet for specific information.

Can I reuse my existing PVDM2 DSP modules in the CISCO3925/K9?

Yes. You can install PVDM2s on the motherboard PVDM slots using the PVDM adaptor cards (PVDM2-ADPTR). You can also insert the high-density voice network modules (NM-HDV2s) with PVDM2s into the service-module slots of the Cisco 3900 Series routers by using the network module-to-service module adapter card (SM-NM-ADAPTR).

What is PoE boost?

When a Cisco 2900 is connected to an external RPS device or a Cisco 3900 is configured with a second power supply, these routers can be configured in PoE boost mode. This mode takes advantage of the increased power capacity of the second power source to power additional PoE devices beyond what a single power source could drive.

What power-supply options are available on the CISCO3925/K9 router?

The table lists the part numbers of the available power supplies for CISCO3925/K9.

What is the Cisco Services Performance Engine (SPE)?

The Cisco Services Performance Engine is the modular motherboard for the Cisco 3900 Series routers primarily responsible for the processing and forwarding of traffic. Similar to today's Cisco 3845 motherboard, the SPE houses the PVDM slots, ISM slot, and the EHWIC slots in addition to the system memory. The SPE provides a modular approach to system upgradability such that you can upgrade Cisco 3900 Series routers deployed in the field with new performance and capabilities with a simple SPE swap. This form of investment protection helps ensure that routers deployed today will be upgradable for years to come with the latest innovations without the need for complete platform replacement.

What countries are classified license-free zones?

Countries belonging to the EU license-free zone include Australia, Austria, Belgium, Bulgaria, Canada, Cypress, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Japan, Latvia, Lithuania, Luxembourg, Malta, Netherlands, New Zealand, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey, United Kingdom, and the United States.

What is the exact HSEC-k9 license?

The HSEC-K9 license removes the curtailment enforced by the U.S. government export restrictions on the encrypted tunnel count and encrypted throughput. HSEC-K9 is available only on the Cisco 2921, Cisco 2951, Cisco 3925, Cisco 3945, Cisco 3925E, and Cisco 3945E. With the HSEC-K9 license, the ISRG2 router can go over the curtailment limit of 225 tunnels maximum for IP Security (IPsec) and encrypted throughput of 85-Mbps unidirectional traffic in or out of the ISR G2 router, with a bidirectional total of 170 Mbps. The Cisco 1941, 2901, and 2911 already have maximum encryption capacities within export limits.

On the Cisco ISR G2 routers with the SEC-K9 license, what tunnel count and performance throughput are available?

The SEC-K9 permanent licenses apply to the Cisco 1900, 2900, and 3900 ISR G2 platforms; these licenses limit all encrypted tunnel counts to 225 tunnels maximum for IP Security (IPsec), Secure Sockets Layer VPN (SSL VPN), a secure time-division multiplexing (TDM) gateway, and secure Cisco Unified Border Element (CUBE) and 1000 tunnels for Transport Layer Security (TLS) sessions. The SEC-K9 license limits encrypted throughput to less than or equal to 85-Mbps unidirectional traffic in or out of the ISR G2 router, with a bidirectional total of 170 Mbps. This requirement applies for the Cisco 1900, 2900, and 3900 ISR G2 platforms.

We have a 3925e router running IOS 15.1(4)M6. One of its current WAN connections is 1000BaseT. We want to migrate it to 1000BaseF. We have the GBIC (GLC-SX-MM) and I know I can just drop it in there.

I think you are looking for the "media-type rj45" command in interface-mode. Later you change to "media-type sfp" when you are ready to switch links.

My customer has a standard configuration for CISCO3925/k9 routers but has CISCO3945/K9 routers available from a cancelled project. Can they just copy the 3925 configuration file onto the 3945 router and it provide the functionality of the 3925?

If the two routers have same IOS (including license) and identical hardware, answer is likely yes. Or, maybe only some minor editing will be required (for example if interface numbering differs).

What are the key features of the Cisco 3925 Router?

The Cisco 3925 Router includes 3 GE ports, 4 EHWIC slots, 4 DSP slots, 2 SM slots, 256 MB CF, and 1 GB DRAM, providing robust performance for enterprise networks.

How cost-effective is the Cisco 3925 Router?

The Cisco 3925 Router offers a balanced mix of performance and scalability at a competitive price, making it a cost-effective solution for enterprise branches.

In which scenarios can the Cisco 3925 Router be deployed?

The Cisco 3925 Router is ideal for medium to large enterprise branches requiring secure, high-performance routing and integrated services.

How do I install the Cisco 3925 Router?

Install the Cisco 3925 Router by rack-mounting it, connecting the necessary cables, and configuring initial settings via the console port following the user manual.

Does the Cisco 3925 Router require regular upgrades?

Yes, periodically check for Cisco IOS updates to ensure the Cisco 3925 Router has the latest security patches and features.

Are there alternative products to the Cisco 3925 Router?

Alternatives include the Cisco 3945 Router or the more recent Cisco ISR 4000 series for enhanced performance and capabilities.

What common troubleshooting steps should I follow for the Cisco 3925 Router?

Common steps include checking cable connections, verifying power status, reviewing configuration settings, and consulting the Cisco support documentation for specific error messages.

What accessories are available for the Cisco 3925 Router?

Accessories include additional EHWIC modules, DRAM upgrades, compact flash memory, and power supply units.

How does the Cisco 3925 Router compare to other similar routers in the CISCO 3900 Series?

The Cisco 3925 Router offers a higher port density and scalability compared to the Cisco 2900 series, but with similar management and security capabilities.

What are the key applications of the Cisco 3925 Router in enterprise networks?

The Cisco 3925 Router supports unified communications, WAN deployments, secure VPN connectivity, and advanced network services for enterprise branches.

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