Switching

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  • 1.  L2 Channel Errors between J-Series and EX3200

    Posted 03-06-2012 15:42

    I am seeing incremental L2 Channel errors on link between J6350 -> EX3200.  This errors are supposed to be incrementing due to the interface seeing a vlan tag which is not configured, but I have matched VLANs on both devices and are still seeing the errors rise.  Any thoughts?

     

    J6350 Config :

     

    alex@J6350> show interfaces extensive ge-3/0/15 | match L2
        Errors: 0, Drops: 0, Framing errors: 0, Runts: 0, Policed discards: 566, L3 incompletes: 0, L2 channel errors: 8480,
        L2 mismatch timeouts: 0, FIFO errors: 0, Resource errors: 0

    set interfaces ge-3/0/15 description "LINK TO GE-0-0-1.EX3200"
    set interfaces ge-3/0/15 vlan-tagging
    set interfaces ge-3/0/15 speed 1g
    set interfaces ge-3/0/15 mtu 1950
    set interfaces ge-3/0/15 link-mode full-duplex
    set interfaces ge-3/0/15 gigether-options no-auto-negotiation
    set interfaces ge-3/0/15 unit 0 vlan-id 1
    set interfaces ge-3/0/15 unit 500 vlan-id 500
    set interfaces ge-3/0/15 unit 700 description ""
    set interfaces ge-3/0/15 unit 700 vlan-id 700
    set interfaces ge-3/0/15 unit 700 family inet address 192.168.0.254/24
    set interfaces ge-3/0/15 unit 700 family inet address 192.168.8.254/24
    set interfaces ge-3/0/15 unit 900 description ""
    set interfaces ge-3/0/15 unit 900 vlan-id 900
    set interfaces ge-3/0/15 unit 900 family inet address 192.168.3.254/24
    set interfaces ge-3/0/15 unit 999 description MGMT
    set interfaces ge-3/0/15 unit 999 vlan-id 999

     

    EX3200 Config:

    set interfaces ge-0/0/1 description "LINK TO GE-3-0-15.J6350"
    set interfaces ge-0/0/1 mtu 1950
    set interfaces ge-0/0/1 ether-options no-auto-negotiation
    set interfaces ge-0/0/1 ether-options link-mode full-duplex
    set interfaces ge-0/0/1 ether-options speed 1g
    set interfaces ge-0/0/1 unit 0 family ethernet-switching port-mode trunk
    set interfaces ge-0/0/1 unit 0 family ethernet-switching vlan members VLAN500
    set interfaces ge-0/0/1 unit 0 family ethernet-switching vlan members VLAN700
    set interfaces ge-0/0/1 unit 0 family ethernet-switching vlan members VLAN900
    set interfaces ge-0/0/1 unit 0 family ethernet-switching native-vlan-id default

     

    alex@EX3200> show vlans
    Name           Tag     Interfaces
    VLAN700    700    
                           ge-0/0/1.0*, ge-0/0/8.0*
    VLAN900            900    
                           ge-0/0/1.0*, ge-0/0/2.0*, ge-0/0/3.0*, ge-0/0/4.0*, ge-0/0/6.0*, ge-0/0/7.0*, ge-0/0/8.0*
    VLAN500        500    
                           ge-0/0/1.0*, ge-0/0/8.0*
    default        999    
                           ge-0/0/1.0*, ge-0/0/8.0*, ge-0/0/9.0, ge-0/0/10.0, ge-0/0/11.0, ge-0/0/12.0, ge-0/0/13.0, ge-0/0/14.0,
                           ge-0/0/15.0, ge-0/0/16.0, ge-0/0/17.0, ge-0/0/18.0, ge-0/0/19.0, ge-0/0/20.0, ge-0/0/21.0, ge-0/0/22.0,
                           ge-0/0/23.0, ge-0/0/24.0, ge-0/0/25.0, ge-0/0/26.0, ge-0/0/27.0, ge-0/0/28.0, ge-0/0/29.0, ge-0/0/30.0,
                           ge-0/0/31.0, ge-0/0/32.0, ge-0/0/33.0, ge-0/0/34.0, ge-0/0/35.0, ge-0/0/36.0, ge-0/0/37.0, ge-0/0/38.0,
                           ge-0/0/39.0, ge-0/0/40.0*, ge-0/0/41.0, ge-0/0/42.0, ge-0/0/43.0*, ge-0/0/44.0, ge-0/0/45.0, ge-0/0/46.0


    Thanks in advance.

     



  • 2.  RE: L2 Channel Errors between J-Series and EX3200
    Best Answer

    Posted 03-06-2012 17:59
    Hi,

    Please check if you are running stp on the switch connecting interface to the srx.
    These packets will also show up as L2 channel errors.

    Regards,
    Visitor
    --------------------------------------------------​--------------------------------------------------​---
    If this post was helpful, please mark this post as an "Accepted Solution".Kudos are always appreciated




  • 3.  RE: L2 Channel Errors between J-Series and EX3200

    Posted 03-06-2012 18:33

    Why didnt I think of that?  Once i disabled STP on the interface in question, the errors stopped.

     

     

    "set protocols rstp interface ge-0/0/1.0 disable"

     

     

    Thanks