[c-nsp] Juniper M20 to Cisco 2600 Multilink Frame Relay & FRF.16 issues

Jim Lucas lists at cmsws.com
Mon Aug 23 13:22:41 EDT 2010


Keegan,

> I haven't looked at MLFR in a long time, but it looks like both sides are
> trying to be DCE.  That may be a problem.

Sorry, that was leftover from a previous config test.  I have it running without
the  "frame-relay intf-type dce" on the Cisco.  The Juniper side is DCE and the
Cisco is not specified.  My assumption has been that the default for Cisco is
DTE.

> Are they setup back to back or is there an actual frame network in the middle?

A network.  They are in different buildings with a MUX or two between them.

If I setup the connection with normal MLPPP it works and standard T1 setups work
just fine.  It shows a hardware level connection, but the protocol is down. 
This makes me think it has something to do with my config and probably not
anything involving the equipment between the devices.

Thanks!

Jim

>
>
>
> On Mon, Aug 23, 2010 at 12:06 PM, Jim Lucas <lists at cmsws.com> wrote:
>
>> Note: I initially sent this to the Juniper-NSP list.  I was told by Nilesh
>> Khambal (Juniper Engineer) that I have setup the Juniper side correctly.
>>  So,
>> I'm hoping someone here might have a little more information on the Cisco
>> side
>> of it all.
>>
>> TIA!
>>
>> First off, sorry for such a long email.  But I figured I would give as much
>> information as possible upfront to try and give a clear picture about what
>> I
>> have and what I am currently running.
>>
>> Central Office Equipment:
>> Juniper M20 running v7.5R1.12
>>    1x Link Services module (ls-3/0/0)
>>
>> Customer Equipment:
>> Cisco 2611 running c2600-ipbase-mz.124-23
>>    2x Eth  (e0/0, e0/1)
>>    4x T1 wic (s0/0, s0/1, s1/0, s1/1)
>>
>> The following is the important parts of the config of the Cisco router
>>
>> interface MFR0
>>  description my interface
>>  no ip address
>>  frame-relay lmi-type ansi
>>  frame-relay intf-type dce
>>
>> interface MFR0.16 point-to-point
>>  ip address 66.39.177.130 255.255.255.252
>>  no cdp enable
>>  frame-relay interface-dlci 16 IETF
>>
>> interface Ethernet0/0
>>  ip address 66.39.177.133 255.255.255.252
>>  half-duplex
>>
>> interface Serial0/0
>>  no ip address
>>  encapsulation frame-relay MFR0
>>  no arp frame-relay
>>
>> interface Serial0/1
>>  no ip address
>>  encapsulation frame-relay MFR0
>>  no arp frame-relay
>>
>>
>> Here is my Juniper config:
>>
>> > show configuration chassis fpc 3 pic 0
>> mlfr-uni-nni-bundles 32;
>>
>> > show configuration interfaces t1-1/1/0:0
>> description "Bendtel Test leg #1";
>> encapsulation multilink-frame-relay-uni-nni;
>> lmi {
>>    lmi-type ansi;
>> }
>> unit 0 {
>>    family mlfr-uni-nni {
>>        bundle ls-3/0/0:0;
>>    }
>> }
>>
>> > show configuration interfaces t1-1/0/0:19
>> description "Bendtel Test leg #2";
>> encapsulation multilink-frame-relay-uni-nni;
>> lmi {
>>    lmi-type ansi;
>> }
>> unit 0 {
>>    family mlfr-uni-nni {
>>        bundle ls-3/0/0:0;
>>    }
>> }
>>
>> > show configuration interfaces ls-3/0/0:0
>> dce;
>> encapsulation multilink-frame-relay-uni-nni;
>> unit 16 {
>>    dlci 16;
>>    family inet {
>>        address 66.39.177.129/30;
>>    }
>> }
>> unit 17 {
>>    dlci 17;
>>    family inet {
>>        address 10.100.100.1/30;
>>    }
>> }
>>
>> Here is the current status of all these interfaces
>>
>> > show interfaces ls-3/0/0:0
>> Physical interface: ls-3/0/0:0, Enabled, Physical link is Down
>>  Interface index: 349, SNMP ifIndex: 953
>>  Link-level type: Multilink-FR-UNI-NNI, MTU: 1508
>>  Device flags   : Present Running
>>  Interface flags: Hardware-Down Link-Layer-Down Point-To-Point SNMP-Traps
>>  Last flapped   : 2010-08-13 19:39:56 GMT (6d 20:20 ago)
>>  Multilink Frame Relay UNI NNI bundle options:
>>    Device type                       DCE
>>    MRRU                              1508
>>    Fragmentation threshold           0
>>    Red differential delay limit      10
>>    Yellow differential delay limit   6
>>    Red differential delay action     Remove link
>>    Reassembly drop timer             0
>>    Links needed to sustain bundle    1
>>    LIP Hello timer                   10
>>        Acknowledgement timer         4
>>        Acknowledgement retries       2
>>    Bundle class                      A
>>    LMI type                          ANSI
>>      T391 LIV polling timer          10
>>      T392 polling verification timer 15
>>      N391 full status polling count  6
>>      N392 error threshold            3
>>      N393 monitored event count      4
>>  Input rate     : 0 bps (0 pps)
>>  Output rate    : 0 bps (0 pps)
>>  Multilink Frame Relay UNI NNI bundle statistics:
>>                     Frames        fps         Bytes          bps
>>
>>    Fragments:
>>      Input :             0          0             0            0
>>      Output:             0          0             0            0
>>    Packets:
>>      Input :             0          0             0            0
>>      Output:             0          0             0            0
>>  Multilink Frame Relay UNI NNI bundle links information:
>>      Active bundle links       0
>>      Removed bundle links      2
>>      Disabled bundle links     0
>>  Multilink Frame Relay UNI NNI active bundle links statistics:
>>                     Frames        fps         Bytes          bps
>>    t1-1/0/0:19.0 <-- down
>>      Input :             0          0             0            0
>>      Output:             0          0             0            0
>>      Current differential delay       0.0 ms
>>      Recent high differential delay   0.0 ms
>>      Times over red diff delay        0
>>      Times over yellow diff delay     0
>>      LIP:add_lnk lnk_ack lnk_rej    hello hel_ack lnk_rem rem_ack
>>      Rcv:      0       0       0        0       0       0       0
>>      Xmt:     15       0       0        0       0       0       0
>>    t1-1/1/0:0.0 <-- down
>>      Input :             0          0             0            0
>>      Output:             0          0             0            0
>>      Current differential delay       0.0 ms
>>      Recent high differential delay   0.0 ms
>>      Times over red diff delay        0
>>      Times over yellow diff delay     0
>>      LIP:add_lnk lnk_ack lnk_rej    hello hel_ack lnk_rem rem_ack
>>      Rcv:      0       0       0        0       0       0       0
>>      Xmt:    197       0       0        0       0       0       0
>>
>>  Logical interface ls-3/0/0:0.16 (Index 230) (SNMP ifIndex 954)
>>    Flags: Device-Down Point-To-Point SNMP-Traps Encapsulation:
>> Multilink-FR-UNI-NNI
>>    Statistics         Frames        fps         Bytes          bps
>>    Bundle:
>>      Fragments:
>>        Input :             0          0             0            0
>>        Output:             0          0             0            0
>>      Packets:
>>        Input :             0          0             0            0
>>        Output:             0          0             0            0
>>    Protocol inet, MTU: 1500
>>      Flags: None
>>      Addresses, Flags: Dest-route-down Is-Preferred Is-Primary
>>        Destination: 66.39.177.128/30, Local: 66.39.177.129
>>
>>  Logical interface ls-3/0/0:0.17 (Index 305) (SNMP ifIndex 955)
>>    Flags: Device-Down Point-To-Point SNMP-Traps Encapsulation:
>> Multilink-FR-UNI-NNI
>>    Bandwidth: 625152kbps
>>    Statistics         Frames        fps         Bytes          bps
>>    Bundle:
>>      Fragments:
>>        Input :             0          0             0            0
>>        Output:             0          0             0            0
>>      Packets:
>>        Input :             0          0             0            0
>>        Output:             0          0             0            0
>>    Protocol inet, MTU: 1500
>>      Flags: None
>>      Addresses, Flags: Dest-route-down Is-Preferred Is-Primary
>>        Destination: 10.100.100.0/30, Local: 10.100.100.1
>>
>>
>> > show interfaces t1-1/1/0:0
>> Physical interface: t1-1/1/0:0, Enabled, Physical link is Up
>>  Interface index: 444, SNMP ifIndex: 310
>>  Description: Bendtel Test leg #1
>>  Link-level type: Multilink-FR-UNI-NNI, MTU: 1518, Clocking: Internal,
>> Speed:
>> T1, Loopback: None, FCS: 16, Mode: C/Bit parity,
>>  Framing: ESF
>>  Device flags   : Present Running
>>  Interface flags: Point-To-Point SNMP-Traps Internal: 0x4000
>>  Link flags     : None
>>  CoS queues     : 4 supported, 4 in use
>>  Last flapped   : 2010-08-19 18:42:37 GMT (21:24:58 ago)
>>  Input rate     : 0 bps (0 pps)
>>  Output rate    : 0 bps (0 pps)
>>  DS1   alarms   : None
>>  DS3   alarms   : None
>>  DS1   defects  : None
>>  DS3   defects  : None
>>
>>  Logical interface t1-1/1/0:0.0 (Index 214) (SNMP ifIndex 429)
>>    Flags: Hardware-Down Point-To-Point SNMP-Traps Encapsulation:
>> Multilink-FR-UNI-NNI
>>    Protocol mfr, Multilink bundle: ls-3/0/0:0, MTU: 0
>>      Flags: None
>>
>> > show interfaces t1-1/0/0:19
>> Physical interface: t1-1/0/0:19, Enabled, Physical link is Up
>>  Interface index: 501, SNMP ifIndex: 211
>>  Description: Bendtel Test leg #2
>>  Link-level type: Multilink-FR-UNI-NNI, MTU: 1518, Clocking: Internal,
>> Speed:
>> T1, Loopback: None, FCS: 16, Mode: C/Bit parity,
>>  Framing: ESF
>>  Device flags   : Present Running
>>  Interface flags: Point-To-Point SNMP-Traps Internal: 0x4000
>>  Link flags     : None
>>  CoS queues     : 4 supported, 4 in use
>>  Last flapped   : 2010-07-09 18:35:02 GMT (5w6d 21:32 ago)
>>  Input rate     : 0 bps (0 pps)
>>  Output rate    : 24 bps (0 pps)
>>  DS1   alarms   : None
>>  DS3   alarms   : None
>>  DS1   defects  : None
>>  DS3   defects  : None
>>
>>  Logical interface t1-1/0/0:19.0 (Index 91) (SNMP ifIndex 625)
>>    Flags: Hardware-Down Point-To-Point SNMP-Traps Encapsulation:
>> Multilink-FR-UNI-NNI
>>    Protocol mfr, Multilink bundle: ls-3/0/0:0, MTU: 0
>>      Flags: None
>>
>>
>> Here is the show chassis
>>
>> jim at b1-bend-re0> show chassis hardware
>> Hardware inventory:
>> Item             Version  Part number  Serial number     Description
>> Chassis                                20934             M20
>> ...
>> FPC 3            REV 01   710-001292   AE7635            FPC
>>  PIC 0          REV 01   750-007924   HM0123            1x Link Service(32)
>> ...
>>
>>
>> For both t1s you can see that they show connected, but for some reason
>> (that
>> escapes me) the ls interface shows "Hardware-Down"  Does this mean the Link
>> services module is not turned up?  To me it isn't clear.
>>
>> Any help would be great!
>>
>> Thanks
>>
>> --
>> Jim Lucas
>>
>>
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>>
>>
>>
>


-- 
Jim Lucas




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