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New Member

Throughput of IDSM-2

Cisco Doc says the IDSM-2's throughput is 600Mbps in promiscuous mode, so what throughput I would get if I just send traffic to one data port.

2 ACCEPTED SOLUTIONS

Accepted Solutions
Silver

Re: Throughput of IDSM-2

From the real-world note: We have numerous Cisco IDS devices, from 4215s up through 4250XLs and IDSM-2s. None of them meet their rated numbers, most start dropping packets at 1/3 of their claimed capacity. This is even after several TAC cases and extensive investigation by TAC engineers and internal developers. Maybe if you shut of 90% of signatures you could get there. Don't believe the hype.

Cisco Employee

Re: Throughput of IDSM-2

Hi,

It will still be 600Mbps.

So you CAN still overload the sensor by sending traffic to one interface.

Thank you.

Edward

9 REPLIES
Cisco Employee

Re: Throughput of IDSM-2

600Mbps limit is for the sensor. Even though it has two data ports (10/100/1000 port each), combined traffic sent to the interface(s) should not exceed 600Mbps.

Thank you.

Edward

New Member

Re: Throughput of IDSM-2

thanks for your prompt replay, does it mean I could and would have 600Mbps throughput if I am going to use one data port only? thanks again.

Cisco Employee

Re: Throughput of IDSM-2

No problem.

Each interface can take up to 1000 Mbps, but sensor can only handle 600 Mbps.

The reason that we have two dataports is for the inline mode.

Thank you.

Edward

Anonymous
N/A

Re: Throughput of IDSM-2

Silver

Re: Throughput of IDSM-2

From the real-world note: We have numerous Cisco IDS devices, from 4215s up through 4250XLs and IDSM-2s. None of them meet their rated numbers, most start dropping packets at 1/3 of their claimed capacity. This is even after several TAC cases and extensive investigation by TAC engineers and internal developers. Maybe if you shut of 90% of signatures you could get there. Don't believe the hype.

New Member

Re: Throughput of IDSM-2

thanks, this is what I need to know (behind the hype) before we would issue a PO.

Cisco Employee

Re: Throughput of IDSM-2

Hi,

It will still be 600Mbps.

So you CAN still overload the sensor by sending traffic to one interface.

Thank you.

Edward

Bronze

Re: Throughput of IDSM-2

Its 600Mbps if you're in Passive mode, and only 500Mbps if its Inline.

Cisco Employee

Re: Throughput of IDSM-2

You are correct.

More information can be found here.

http://www.cisco.com/en/US/products/hw/modules/ps2706/products_data_sheet09186a00801e55dd.html

Thank you.

Edward

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