Problem with ATM/IMA

Discussion in 'Cisco' started by Mimmus, Mar 16, 2005.

  1. Mimmus

    Mimmus Guest

    Hi,
    I have a 3745 with IOS v.12.3(9) and AIM-ATM module with 4 interfaces.
    I know that lines are OK because I tried with another router (a 3600, with
    older modules).
    Single ATM intergfaces are 'up' but I'm unable to get up IMA interface, as
    you can see here:

    # sh ima int
    Interface ATM0/IMA1 is down
    Group index is 17
    Ne state is insufficientLinks, failure status is insufficientLinksNe
    IMA Group Current Configuration:
    Tx/Rx minimum required links 1/1
    Maximum allowed diff delay is 50ms, Tx frame length 128
    Ne Tx clock mode CTC, configured timing reference link ATM0/0
    Test pattern procedure is disabled
    IMA Group Total Counters (time elapsed 0 seconds):
    0 Tx cells, 0 Rx cells
    5 Ne Failures, 2 Fe Failures, 1618 Unavail Secs
    IMA link Information:
    Link Physical Status NearEnd Rx Status Test Status
    ---- --------------- ----------------- -----------
    ATM0/0 up active disabled
    ATM0/1 up active disabled
    ATM0/2 up active disabled
    ATM0/3 up active disabled

    Any help?
    This is my conf (only ATM part):

    no network-clock-participate slot 1
    network-clock-participate wic 0
    network-clock-participate wic 1
    network-clock-participate aim 1
    network-clock-select 1 E1 0/0
    ....
    controller E1 0/0
    mode atm aim 1
    !
    controller E1 0/1
    mode atm aim 1
    !
    controller E1 0/2
    mode atm aim 1
    !
    controller E1 0/3
    mode atm aim 1
    ....
    interface ATM0/0
    no ip address
    scrambling-payload
    ima-group 1
    no atm oversubscribe
    no atm auto-configuration
    no atm ilmi-keepalive
    no atm address-registration
    no atm ilmi-enable
    !
    interface ATM0/1
    no ip address
    scrambling-payload
    ima-group 1
    no atm oversubscribe
    no atm auto-configuration
    no atm ilmi-keepalive
    no atm address-registration
    no atm ilmi-enable
    !
    interface ATM0/2
    no ip address
    scrambling-payload
    ima-group 1
    no atm oversubscribe
    no atm auto-configuration
    no atm ilmi-keepalive
    no atm address-registration
    no atm ilmi-enable
    !
    interface ATM0/3
    no ip address
    scrambling-payload
    ima-group 1
    no atm oversubscribe
    no atm auto-configuration
    no atm ilmi-keepalive
    no atm address-registration
    no atm ilmi-enable
    !
    interface ATM0/IMA1
    no ip address
    ima differential-delay-maximum 50
    no atm oversubscribe
    no atm auto-configuration
    no atm ilmi-keepalive
    no atm address-registration
    no atm ilmi-enable
    !
    interface ATM0/IMA1.1 point-to-point
    bandwidth 8192
    ip address 192.168.110.9 255.255.255.252
    ip ospf cost 1000
    pvc 10/100
    protocol ip 192.168.110.10 broadcast
    ubr 7680
    !

    Thanks in advance
    Mimmus
    Mimmus, Mar 16, 2005
    #1
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  2. Mimmus

    thrill5 Guest

    Here is a config that I have working using IMA T1 cards between a 7206 and a
    3640...


    no interface atm0/ima1.1

    interface atm0/ima1
    atm auto-configuration
    no atm ilmi-keepalive
    atm address-registration
    atm ilmi-enable
    atm uni-version 4.0
    ip split-horizon
    ip address 192.168.110.9 255.255.255.252
    ip ospf cost 1000

    pvc 0/5 qsaal
    pvc 0/16 ilmi

    pvc 10/100
    protocol ip inarp
    broadcast
    vbr-nrt 8000 8000 1

    The problem is that you need to define a pvc for qsaal (ATM Adaption Layer)
    and ILMI. I think you need to use these specific pvcs for those services.
    Without aal and ILMI, the ATM layer never comes up and this is why you get
    the error "insufficient links"; the links are up, but the ATM layer is not.
    I think you need to turn on

    atm auto-configuration
    atm ilmi-keepalive
    atm address-registration
    atm ilmi-enable

    on each of your E1's as well. Only put a bandwidth statement under the IMA
    interface if you don't want this value to be dynamically calculated. As E1
    go up and down, the bandwidth value will change.

    That should do the trick...

    Scott


    "Mimmus" <> wrote in message
    news:laXZd.16666$...
    > Hi,
    > I have a 3745 with IOS v.12.3(9) and AIM-ATM module with 4 interfaces.
    > I know that lines are OK because I tried with another router (a 3600, with
    > older modules).
    > Single ATM intergfaces are 'up' but I'm unable to get up IMA interface, as
    > you can see here:
    >
    > # sh ima int
    > Interface ATM0/IMA1 is down
    > Group index is 17
    > Ne state is insufficientLinks, failure status is
    > insufficientLinksNe
    > IMA Group Current Configuration:
    > Tx/Rx minimum required links 1/1
    > Maximum allowed diff delay is 50ms, Tx frame length 128
    > Ne Tx clock mode CTC, configured timing reference link ATM0/0
    > Test pattern procedure is disabled
    > IMA Group Total Counters (time elapsed 0 seconds):
    > 0 Tx cells, 0 Rx cells
    > 5 Ne Failures, 2 Fe Failures, 1618 Unavail Secs
    > IMA link Information:
    > Link Physical Status NearEnd Rx Status Test Status
    > ---- --------------- ----------------- -----------
    > ATM0/0 up active disabled
    > ATM0/1 up active disabled
    > ATM0/2 up active disabled
    > ATM0/3 up active disabled
    >
    > Any help?
    > This is my conf (only ATM part):
    >
    > no network-clock-participate slot 1
    > network-clock-participate wic 0
    > network-clock-participate wic 1
    > network-clock-participate aim 1
    > network-clock-select 1 E1 0/0
    > ...
    > controller E1 0/0
    > mode atm aim 1
    > !
    > controller E1 0/1
    > mode atm aim 1
    > !
    > controller E1 0/2
    > mode atm aim 1
    > !
    > controller E1 0/3
    > mode atm aim 1
    > ...
    > interface ATM0/0
    > no ip address
    > scrambling-payload
    > ima-group 1
    > no atm oversubscribe
    > no atm auto-configuration
    > no atm ilmi-keepalive
    > no atm address-registration
    > no atm ilmi-enable
    > !
    > interface ATM0/1
    > no ip address
    > scrambling-payload
    > ima-group 1
    > no atm oversubscribe
    > no atm auto-configuration
    > no atm ilmi-keepalive
    > no atm address-registration
    > no atm ilmi-enable
    > !
    > interface ATM0/2
    > no ip address
    > scrambling-payload
    > ima-group 1
    > no atm oversubscribe
    > no atm auto-configuration
    > no atm ilmi-keepalive
    > no atm address-registration
    > no atm ilmi-enable
    > !
    > interface ATM0/3
    > no ip address
    > scrambling-payload
    > ima-group 1
    > no atm oversubscribe
    > no atm auto-configuration
    > no atm ilmi-keepalive
    > no atm address-registration
    > no atm ilmi-enable
    > !
    > interface ATM0/IMA1
    > no ip address
    > ima differential-delay-maximum 50
    > no atm oversubscribe
    > no atm auto-configuration
    > no atm ilmi-keepalive
    > no atm address-registration
    > no atm ilmi-enable
    > !
    > interface ATM0/IMA1.1 point-to-point
    > bandwidth 8192
    > ip address 192.168.110.9 255.255.255.252
    > ip ospf cost 1000
    > pvc 10/100
    > protocol ip 192.168.110.10 broadcast
    > ubr 7680
    > !
    >
    > Thanks in advance
    > Mimmus
    >
    thrill5, Mar 17, 2005
    #2
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  3. Mimmus

    Mimmus Guest

    I will try. Thank you.
    But with older module NM-4T1-IMA all this was un-needed.

    Mimmus
    Mimmus, Mar 17, 2005
    #3
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