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New Member

Ethernet Switching Network Module vs HWIC

Hi all,

There are ethernet switching port provided on netowk module and HWIC slot. What is the difference in performance/function between network modules and HWIC card. How should i choose? Thanks


Re: Ethernet Switching Network Module vs HWIC

The NM-1HSSI is a single port, high-speed network module that provides connectivity to a Wide Area Network. Demand for high capacity corporate backbones, high-speed Internet access, Virtual Private Networks (VPNs), and trunking connections for service provider internetworking has led to an increase demand for clear channel DS3 and E3 connections. Also see the NM-1T3/E3 clear channel T3/E3 Network Module

The NM-4T serial network module has four synchronous serial interfaces. The network module supports a total full-duplex throughput of 8 megabits per second (Mbps), which can be realized over one port (at 8 Mbps) or across all four ports (at 2 Mbps on each port).

You should checkpout following link.

I am focusing on TABLE-6.

Both are important.. where you can use which depand upon scenario.

- Dharmesh Purohit

New Member

Re: Ethernet Switching Network Module vs HWIC

Hi Eric,

The latest NM slot type is NME, it has 1Gbps speed connecting to backplane.

For HWIC, I can find that HWIC-4ESW support upto 100Mbps in total while HWIC-9ESW supports upto 200Mbps in total.

In general NM supports a variety of network module like Unity Express, WLC module, network analysis module etc.