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Port Mirroring Limit on 5412R and 3810M

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  • 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

    EMPLOYEE
    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

    EMPLOYEE
    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



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

    Posted Mar 04, 2021 06:48 PM
    This actually does not work. I just tested this with 4 vlans.......10 - 40. And when I look at mirror session 1, it shows only the last vlan that I configured it on, which is vlan 40.

    Aruba-2930F-48G-PoEP-4SFP# show monitor 1
    Network Monitoring

    Session: 1 Session Name:
    Mirror Destination: 24 (Port)

    Monitoring Sources Direction Truncation Mirror Policy
    ------------------ --------- ---------- -------------
    VLAN: 40 Both No -

    ------------------------------
    Steve
    ------------------------------

    Original Message


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

    Posted Mar 04, 2021 06:54 PM

    Aruba-2930F-48G-PoEP-4SFP# conf t

    Aruba-2930F-48G-PoEP-4SFP(config)# vlan 10

    Aruba-2930F-48G-PoEP-4SFP(vlan-10)# vlan 20

    Aruba-2930F-48G-PoEP-4SFP(vlan-20)# vlan 30

    Aruba-2930F-48G-PoEP-4SFP(vlan-30)# vlan 40

    Aruba-2930F-48G-PoEP-4SFP(vlan-40)# vlan 50

    Aruba-2930F-48G-PoEP-4SFP(vlan-50)# exit

    Aruba-2930F-48G-PoEP-4SFP(config)# mirror 1 port 24

    Aruba-2930F-48G-PoEP-4SFP(config)# vlan 10

    Aruba-2930F-48G-PoEP-4SFP(vlan-10)# monitor all both mirror 1

    Aruba-2930F-48G-PoEP-4SFP(vlan-10)# vlan 20

    Aruba-2930F-48G-PoEP-4SFP(vlan-20)# monitor all both mirror 1

    Aruba-2930F-48G-PoEP-4SFP(vlan-20)# vlan 30

    Aruba-2930F-48G-PoEP-4SFP(vlan-30)# monitor all both mirror 1

    Aruba-2930F-48G-PoEP-4SFP(vlan-30)# vlan 40

    Aruba-2930F-48G-PoEP-4SFP(vlan-40)# monitor all both mirror 1

    Aruba-2930F-48G-PoEP-4SFP(vlan-40)# exit

    Aruba-2930F-48G-PoEP-4SFP(config)# exit

    Aruba-2930F-48G-PoEP-4SFP# show monitor

    There are no Remote Mirroring endpoints currently assigned.

     

    Network Monitoring

     

       Sessions  Status             Type    Sources  Mirror-Policy

       --------  -----------------  -----   -------  -------------

       1         active              port   1             No

       2         not defined

       3         not defined

       4         not defined

     

    Aruba-2930F-48G-PoEP-4SFP# show monitor 1

    Network Monitoring

     

       Session: 1    Session Name:

          Mirror Destination:  24    (Port)

     

          Monitoring Sources  Direction Truncation Mirror Policy

          ------------------  --------- ---------- -------------

          VLAN: 40            Both       No         -

     

    Aruba-2930F-48G-PoEP-4SFP# conf t

    Aruba-2930F-48G-PoEP-4SFP(config)# vlan 50

    Aruba-2930F-48G-PoEP-4SFP(vlan-50)# monitor all both mirror 1

    Aruba-2930F-48G-PoEP-4SFP(vlan-50)# exit

    Aruba-2930F-48G-PoEP-4SFP(config)# exit

    Aruba-2930F-48G-PoEP-4SFP# show monitor 1

    Network Monitoring

     

       Session: 1    Session Name:

          Mirror Destination:  24    (Port)

     

          Monitoring Sources  Direction Truncation Mirror Policy

          ------------------  --------- ---------- -------------

          VLAN: 50            Both       No         -

     

    Aruba-2930F-48G-PoEP-4SFP#



    ------------------------------
    Steve
    ------------------------------

    Original Message