Campus Switching and Routing

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Contributor I

Port Mirroring Limit on 5412R and 3810M

Hi there,

I saw from the ArubaOS-Switch 16.05 guide that:

Traffic mirroring supports the configuration of port and VLAN interfaces as mirroring sources in up to four mirroring sessions on a switch. Each session can have one or more sources (ports and/or static trunks, a mesh, or a VLAN interface) that monitor traffic entering and/or leaving the switch.

 

Question 1:

What is the hard limit for a 24/48 ports port mirroring to a single port? Is it 4 ports only?

 

Question 2:

Does it mean for 5406 and 5412 zl2 series also allows only 4 sessions per chassis? Even though all the line cards are inserted?

 

Thanks.

Aruba Employee

Re: Port Mirroring Limit on 5412R and 3810M

Hi,

 

Thank you for your question. Would be great if you can provide some additional details on the use model? Do you think 4 destinations is not enough? Below I've copied the question and try to provide an answer. 

 

Question 1:

What is the hard limit for a 24/48 ports port mirroring to a single port? Is it 4 ports only?

 

The 4 ports are related to exit ports. To be honest I don't think there is a hard limit and you're able to add all ports. The only limit you of course always have is the bandwidth of the exit port.  If you want to monitor all ports on certain traffic this is also possible with policies. Or you can better monitor uplinks / VLAN's. 

 

Question 2:

Does it mean for 5406 and 5412 zl2 series also allows only 4 sessions per chassis? Even though all the line cards are inserted?

 

You have 4 mirror session that can provide as an exit port. There is also an option to set-up remote mirror sessions which can be very nice since you just copy traffic from one switch to another. 

 

Let me know if there are any questions / comments. 

 

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