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c0pp3rt0p

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c0pp3rt0p

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86043

May 27th, 2012 09:00

6224 Multicast flooding help

I'm a noob on the hardware side and would appreciate some guidance from someone with more knowledge than myself on the intricacies of multicast routing.
 

This should be a simple setup, and it works for our needs,  but I want to prevent the multicast packet flooding that is occurring on VLAN 20.
 

In the docs I've found examples on setting up igmp snooping so I've tried those, but with no luck.  The multicast data keeps showing up on all the ports of VLAN 20.  I also tried setting up a 33rd VLAN and tried to route the multicast data from VLAN 10 to VLAN 20 with no luck.
 

 

Details:
 

This 6224P is the only switch on this stand alone network.  The multicast data is coming in on interface 1/g3 from 192.168.21.150 to multicast address 231.168.21.150.  There are two computers on 1/g11 and 1/g12 that join the multicast  to receive the data and I would like to prevent the multicast from travelling back out the rest of VLAN 20.  The two computer are also communicating to other devices on the VLAN.  There's two devices broadcasting data as well as 3 other devices being controlled via standard TCP/IP connections.
 

 

The trunked ports were setup as a simple link to a back up switch with the same config in the event of a failure.
 

 

The switch is handling the load just fine, but the other devices on VLAN 20 are a bit overwhelmed by the multicast data.
 

 

Any help or advice is greatly appreciated.
 

 

-C
 

 

 

 

!Current Configuration:
!System Description "Powerconnect 6224P, 3.2.0.7, VxWorks 6.5"
!System Software Version 3.2.0.7
!Cut-through mode is configured as disabled
!
configure
vlan database
vlan 20,30
exit
hostname "projections_1"
stack
member 1 4
exit
ip address 192.168.101.1 255.255.255.0
ip routing
username "admin" password 7275a1e8ba6325ecfc03ebb61a4b9192 level 15 encrypted
!
interface ethernet 1/g1
switchport mode general
exit
!


interface ethernet 1/g2
switchport access vlan 20
exit
!
interface ethernet 1/g3
switchport access vlan 20
exit
!
interface ethernet 1/g4
switchport access vlan 20
exit
!
interface ethernet 1/g5
switchport access vlan 20
exit
!
interface ethernet 1/g6
switchport access vlan 20
exit
!
interface ethernet 1/g7


switchport access vlan 20
exit
!
interface ethernet 1/g8
switchport access vlan 20
exit
!
interface ethernet 1/g9
switchport access vlan 20
exit
!
interface ethernet 1/g10
switchport access vlan 20
exit
!
interface ethernet 1/g11
switchport access vlan 20
exit
!
interface ethernet 1/g12
switchport access vlan 20


exit
!
interface ethernet 1/g13
switchport access vlan 20
exit
!
interface ethernet 1/g14
switchport access vlan 20
exit
!
interface ethernet 1/g15
switchport access vlan 30
exit
!
interface ethernet 1/g16
switchport access vlan 30
exit
!
interface ethernet 1/g17
switchport access vlan 30
exit


!
interface ethernet 1/g18
switchport access vlan 30
exit
!
interface ethernet 1/g19
switchport access vlan 30
exit
!
interface ethernet 1/g20
switchport access vlan 30
exit
!
interface ethernet 1/g21
switchport access vlan 30
exit
!
interface ethernet 1/g22
switchport access vlan 30
exit
!


interface ethernet 1/g23
switchport mode trunk
switchport trunk allowed vlan add 20,30
exit
!
interface ethernet 1/g24
switchport mode trunk
switchport trunk allowed vlan add 20,30
exit
snmp-server community public rw
exit
  • C
    c0pp3rt0p
    4 Posts
    2774
    0
    Posted May 30th, 2012 13:00
    Thank you very much for the reply.
     
     I've tried the config changes you suggested.  In the app notes it
     references setting "bridge multicast filtering" on the interface as
     well as global.  On the 6224, there is no "bridge multicast filtering"
     on the interface.
     
     Here's the config with the changes, multicast packets are still
     flooding all ports on VLAN 20.
     
     -Craig
     
     projections_2#show run
     !Current Configuration:
     !System Description "Powerconnect 6224P, 3.2.0.7, VxWorks 6.5"
     !System Software Version 3.2.0.7
     !Cut-through mode is configured as disabled
     !
     configure
     vlan database
     vlan 10,20,30
     ip igmp snooping 20
     exit
     hostname "projections_2"
     stack
     member 1 4
     exit
     ip address 192.168.102.1 255.255.255.0
     ip routing
     username "admin" password 7275a1e8ba6325ecfc03ebb61a4b9192 level 15 encrypted
     bridge multicast filtering
     ip igmp snooping
     ip multicast
     !
     interface ethernet 1/g1
     switchport mode general
     exit
     !
     interface ethernet 1/g2
     description 'Induction_to_Duality'
     switchport access vlan 20
     exit
     !
     interface ethernet 1/g3
     switchport access vlan 20
     exit
     !
     interface ethernet 1/g4
     switchport access vlan 20
     exit
     !
     interface ethernet 1/g5
     switchport access vlan 20
     exit
     !
     interface ethernet 1/g6
     switchport access vlan 20
     exit
     !
     interface ethernet 1/g7
     switchport access vlan 20
     exit
     !
     interface ethernet 1/g8
     switchport access vlan 20
     exit
     !
     interface ethernet 1/g9
     switchport access vlan 20
     exit
     !
     interface ethernet 1/g10
     switchport access vlan 20
     exit
     !
     interface ethernet 1/g11
     switchport access vlan 20
     exit
     !
     interface ethernet 1/g12
     switchport access vlan 20
     exit
     !
     interface ethernet 1/g13
     switchport access vlan 20
     exit
     !
     interface ethernet 1/g14
     switchport access vlan 20
     exit
     !
     interface ethernet 1/g15
     switchport access vlan 30
     exit
     !
     interface ethernet 1/g16
     switchport access vlan 30
     exit
     !
     interface ethernet 1/g17
     switchport access vlan 30
     exit
     !
     interface ethernet 1/g18
     switchport access vlan 30
     exit
     !
     interface ethernet 1/g19
     switchport access vlan 30
     exit
     !
     interface ethernet 1/g20
     switchport access vlan 30
     exit
     !
     interface ethernet 1/g21
     switchport access vlan 30
     exit
     !
     interface ethernet 1/g22
     switchport access vlan 30
     exit
     !
     interface ethernet 1/g23
     switchport mode trunk
     switchport trunk allowed vlan add 30
     exit
     !
     interface ethernet 1/g24
     switchport mode trunk
     switchport trunk allowed vlan add 30
     exit
     snmp-server community public rw
     exit
  • C
    c0pp3rt0p
    4 Posts
    2774
    0
    Posted June 1st, 2012 11:00
    Almost. 
     

    - I can't add "ip igmp" to the interface VLAN 20, I get an error about an invalid action on the interface. So I tried it without and also at the global level.
     

    - With the bridge multicast forbidden forward-unregistered, the flooding stops, but now the clients that want to join the multicast don't ever get passed the packets.
     

    Cheers!
     

     
     

    -C
     

    Here's the current config.
     

    projections_2#show running-config
    !Current Configuration:
    !System Description "Powerconnect 6224P, 3.2.0.7, VxWorks 6.5"
    !System Software Version 3.2.0.7
    !Cut-through mode is configured as disabled
    !
    configure
    vlan database
    vlan 10,20,30
    ip igmp snooping 20
    exit
    hostname "projections_2"
    stack
    member 1 4
    exit
    ip address 192.168.102.1 255.255.255.0
    ip routing
    interface vlan 20
    bridge multicast forbidden forward-unregistered
    exit
    username "admin" password 7275a1e8ba6325ecfc03ebb61a4b9192 level 15 encrypted
    bridge multicast filtering
    ip igmp snooping
    ip multicast
    ip igmp
    !
    interface ethernet 1/g1
    ip igmp snooping
    switchport mode general
    exit
    !
    interface ethernet 1/g2
    description 'Induction_to_Duality'
    ip igmp snooping
    switchport access vlan 10
    exit
    !
    interface ethernet 1/g3
    ip igmp snooping
    switchport access vlan 20
    exit
    !
    interface ethernet 1/g4
    ip igmp snooping
    switchport access vlan 20
    exit
    !
    interface ethernet 1/g5
    ip igmp snooping
    switchport access vlan 20
    exit
    !
    interface ethernet 1/g6
    ip igmp snooping
    switchport access vlan 20
    exit
    !
    interface ethernet 1/g7
    ip igmp snooping
    switchport access vlan 20
    exit
    !
    interface ethernet 1/g8
    ip igmp snooping
    switchport access vlan 20
    exit
    !
    interface ethernet 1/g9
    ip igmp snooping
    switchport access vlan 20
    exit
    !
    interface ethernet 1/g10
    ip igmp snooping
    switchport access vlan 20
    exit
    !
    interface ethernet 1/g11
    ip igmp snooping
    switchport access vlan 20
    exit
    !
    interface ethernet 1/g12
    ip igmp snooping
    switchport access vlan 20
    exit
    !
    interface ethernet 1/g13
    ip igmp snooping
    switchport access vlan 20
    exit
    !
    interface ethernet 1/g14
    ip igmp snooping
    switchport access vlan 20
    exit
    !
    interface ethernet 1/g15
    ip igmp snooping
    switchport access vlan 30
    exit
    !
    interface ethernet 1/g16
    ip igmp snooping
    switchport access vlan 30
    exit
    !
    interface ethernet 1/g17
    ip igmp snooping
    switchport access vlan 30
    exit
    !
    interface ethernet 1/g18
    ip igmp snooping
    switchport access vlan 30
    exit
    !
    interface ethernet 1/g19
    ip igmp snooping
    switchport access vlan 30
    exit
    !
    interface ethernet 1/g20
    ip igmp snooping
    switchport access vlan 30
    exit
    !
    interface ethernet 1/g21
    ip igmp snooping
    switchport access vlan 30
    exit
    !
    interface ethernet 1/g22
    ip igmp snooping
    switchport access vlan 30
    exit
    !
    interface ethernet 1/g23
    ip igmp snooping
    switchport mode trunk
    switchport trunk allowed vlan add 30
    exit
    !
    interface ethernet 1/g24
    ip igmp snooping
    switchport mode trunk
    switchport trunk allowed vlan add 30
    exit
    !
    interface ethernet 1/xg1
    ip igmp snooping
    exit
    !
    interface ethernet 1/xg2
    ip igmp snooping
    exit
    !
    interface ethernet 1/xg3
    ip igmp snooping
    exit
    !
    interface ethernet 1/xg4
    ip igmp snooping
    exit
    snmp-server community public rw
    exit
  • C
    c0pp3rt0p
    4 Posts
    2782
    0
    Posted June 1st, 2012 16:00
    Disabling IP Routing globally now makes this configuration work.  From what I've learned so far, that sets the switch in to Layer 3 and the snooping setup is Layer 2. Please correct me if I'm wrong ;)
  • L
    lobito
    4 Posts
    2782
    0
    Posted March 7th, 2013 11:00
    Hi.
     

    I have a similar problem with 6224.
     

    We have IP routing activated in globally and in vlan. 
     

    If i have "bridge multicast forbidden forward-unregistered" enabled in VLAN i cannot "see" multicast in ports with IGMP.
     

    So, if i disable "bridge multicast forbidden forward-unregistered" and put forwarding unregistered it works.
     

    The other way to put this working is, continue with forbidden but disabling ip routing in globally!! But i want to keep ip routing activated-
     

    How can i put this working with "bridge multicast forbidden forward-unregistered" and ip routing?
     

    Thanks
  • L
    lobito
    4 Posts
    2782
    0
    Posted March 8th, 2013 03:00
    We have some multicast video streamers in port 1 - 4, and an host in port 19 for example.
     

    If i do a "bridge multicast forbidden forward-unregistered" in VLAN 12, i cannot see the multicast in out interfaces.
     

    !Current Configuration:
     

    !System Description "PowerConnect 6224, 3.3.5.5, VxWorks 6.5"
     

    !System Software Version 3.3.5.5
     

    !Cut-through mode is configured as disabled
     

    !
     

    configure
     

    vlan database
     

    vlan 12
     

    ip igmp snooping 12
     

    ip igmp snooping maxresponse 12 1
     

    ip igmp snooping querier 12
     

    ip igmp snooping querier election participate 12
     

    vlan routing 12 1
     

    exit
     

    hostname "SwVideo"
     

    stack
     

    member 1 1
     

    exit
     

    ip address 192.168.122.2 255.255.255.0
     

    exit
     

    ip routing
     

    interface vlan 1
     

    bridge multicast forbidden forward-unregistered
     

    exit
     

    interface vlan 12
     

    bridge multicast forbidden forward-unregistered
     

    name "VIDEO"
     

    routing
     

    ip address 10.3.0.21 255.255.192.0
     

    ip igmp
     

    ip igmp version 2
     

    ip igmp query-interval 200
     

    ip igmp robustness 4
     

    ip igmp last-member-query-count 5
     

    ip pimdm
     

    exit
     

    username "test" password 4e95563e70e9f790a6009edf9b28b8a3 level 15 encrypted
     

    no spanning-tree
     

    bridge multicast filtering
     

    snmp-server enable traps pim
     

    ip igmp snooping
     

    ip igmp snooping querier
     

    ip igmp snooping querier address 10.3.0.21
     

    ip igmp snooping querier query-interval 20
     

    ip multicast
     

    ip igmp
     

    ip pimsm
     

    !
     

    interface ethernet 1/g1
     

    description 'MULTICAST SOURCE'
     

    ip igmp snooping
     

    spanning-tree disable
     

    spanning-tree portfast
     

    switchport access vlan 12
     

    exit
     

    !
     

    interface ethernet 1/g2
     

    description 'MULTICAST SOURCE'
     

    spanning-tree disable
     

    spanning-tree portfast
     

    switchport access vlan 12
     

    exit
     

    !
     

    interface ethernet 1/g3
     

    description 'MULTICAST SOURCE'
     

    spanning-tree disable
     

    spanning-tree portfast
     

    switchport access vlan 12
     

    exit
     

    !
     

    interface ethernet 1/g4
     

    description 'MULTICAST SOURCE'
     

    ip igmp snooping
     

    spanning-tree disable
     

    spanning-tree portfast
     

    switchport access vlan 12
     

    exit
     

    !
     

    interface ethernet 1/g5
     

    description 'MULTICAST SOURCE'
     

    ip igmp snooping
     

    spanning-tree disable
     

    spanning-tree portfast
     

    switchport access vlan 12
     

    exit
     

    !
     

    interface ethernet 1/g6
     

    description 'MULTICAST SOURCE'
     

    ip igmp snooping
     

    spanning-tree disable
     

    spanning-tree portfast
     

    switchport access vlan 12
     

    exit
     

    !
     

    interface ethernet 1/g7
     

    description 'MULTICAST SOURCE'
     

    ip igmp snooping
     

    switchport access vlan 12
     

    exit
     

    !
     

    interface ethernet 1/g8
     

    description 'MULTICAST SOURCE'
     

    ip igmp snooping
     

    spanning-tree disable
     

    spanning-tree portfast
     

    switchport access vlan 12
     

    exit
     

    !
     

    interface ethernet 1/g9
     

    shutdown
     

    spanning-tree disable
     

    spanning-tree portfast
     

    switchport access vlan 12
     

    exit
     

    !
     

    interface ethernet 1/g10
     

    spanning-tree disable
     

    spanning-tree portfast
     

    switchport access vlan 12
     

    exit
     

    !
     

    interface ethernet 1/g11
     

    spanning-tree disable
     

    spanning-tree portfast
     

    switchport access vlan 12
     

    exit
     

    !
     

    interface ethernet 1/g12
     

    ip igmp snooping
     

    spanning-tree disable
     

    spanning-tree portfast
     

    switchport access vlan 12
     

    exit
     

    !
     

    interface ethernet 1/g13
     

    spanning-tree disable
     

    spanning-tree portfast
     

    exit
     

    !
     

    interface ethernet 1/g14
     

    shutdown
     

    spanning-tree disable
     

    spanning-tree portfast
     

    exit
     

    !
     

    interface ethernet 1/g15
     

    spanning-tree disable
     

    spanning-tree portfast
     

    exit
     

    !
     

    interface ethernet 1/g16
     

    spanning-tree disable
     

    spanning-tree portfast
     

    switchport access vlan 12
     

    exit
     

    !
     

    interface ethernet 1/g17
     

    ip igmp snooping
     

    spanning-tree disable
     

    spanning-tree portfast
     

    switchport access vlan 12
     

    exit
     

    !
     

    interface ethernet 1/g18
     

    spanning-tree disable
     

    spanning-tree portfast
     

    switchport access vlan 12
     

    exit
     

    !
     

    interface ethernet 1/g19
     

    description 'MULTICAST OUT'
     

    ip igmp snooping
     

    spanning-tree disable
     

    spanning-tree portfast
     

    switchport access vlan 12
     

    exit
     

    !
     

    interface ethernet 1/g20
     

    spanning-tree disable
     

    spanning-tree portfast
     

    switchport access vlan 12
     

    exit
     

    !
     

    interface ethernet 1/g21
     

    ip igmp snooping
     

    spanning-tree disable
     

    spanning-tree portfast
     

    switchport mode trunk
     

    switchport trunk allowed vlan add 12
     

    exit
     

    !
     

    interface ethernet 1/g22
     

    ip igmp snooping
     

    spanning-tree disable
     

    spanning-tree portfast
     

    switchport access vlan 12
     

    exit
     

    !
     

    interface ethernet 1/g23
     

    description 'MULTICAST OUT'
     

    ip igmp snooping
     

    spanning-tree disable
     

    spanning-tree portfast
     

    switchport mode trunk
     

    switchport trunk allowed vlan add 12
     

    exit
     

    !
     

    interface ethernet 1/g24
     

    description 'MULTICAST OUT'
     

    ip igmp snooping
     

    spanning-tree disable
     

    spanning-tree portfast
     

    switchport mode trunk
     

    switchport trunk allowed vlan add 12
     

    exit
     

    exit
     

    Thanks for your help
  • L
    lobito
    4 Posts
    566
    0
    Posted March 9th, 2013 04:00
    With layer2 multicasting can i remove ip igmp from global and from vlan? Right?
     

    The idea of this scenario is to have about 200 multicast video source streams in 1-4 interfaces and about 5000 users in multicast out. I have to prevent that any other user act as multicast source (a normal IPTV scenario).
  • L
    lobito
    4 Posts
    566
    0
    Posted March 11th, 2013 09:00
    Thank you very much.
     

    And regarded to the other configurations? Like PIM, filtering multicast, etc? should i leave it configured or not?
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