Wired

last person joined: 23 minutes ago 

Bring performance and reliability to your network with the Aruba Core, Aggregation, and Access layer switches. Discuss the latest features and functionality of the ArubaOS-Switch and ArubaOS-CX devices, and find ways to improve security across your network to bring together a mobile first solution.
Expand all | Collapse all

Port Mirroring Limit on 5412R and 3810M

Jump to Best Answer
  • 1.  Port Mirroring Limit on 5412R and 3810M

    Posted Jan 31, 2018 07:38 AM

    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.



  • 2.  RE: Port Mirroring Limit on 5412R and 3810M
    Best Answer

    Posted Feb 06, 2018 04:03 AM

    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. 

     



  • 3.  RE: Port Mirroring Limit on 5412R and 3810M

    Posted Mar 20, 2018 04:48 AM

    Need to delete this post entry



  • 4.  RE: Port Mirroring Limit on 5412R and 3810M

    Posted Mar 20, 2018 06:09 AM

    Hi Philip,

     

    If you just want to monitor all traffic on these VLANS and have local mirror (exit) port you can simply use these commands without all the classifications. 

     

    Let's say VLAN 10 and 20 you need to monitor and port 24 on the switch is the port where all the traffic is send to. 

     

    - Configure mirror session (exit):

    mirror 1 port 24

    - Configure monitor on VLANs

    vlan 10

       monitor all both mirror 1

    vlan 20

      monitor all both mirror 1

     

    If I'm correct then this is it. You're done and ready to start monitoring traffic. Be aware when you monitor complete VLAN's that are really busy or have lots of ports on the same switch and send all of this traffic to one port you can potentially overload the mirror port. 

     

    Regards, Dobias