[j-nsp] Multilink Frame Relay between Juniper M20 and Cisco 2621

Jim Lucas lists at cmsws.com
Fri Aug 20 12:34:08 EDT 2010


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 MFR1
 description Loop2
 no ip address
 load-interval 30
 frame-relay lmi-type ansi

interface MFR1.16 point-to-point
 ip address 66.39.177.126 255.255.255.252
 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 MFR1
 no arp frame-relay

If I place a cross over cable connecting S0/0 and S0/1, all the links come up. 
So I am pretty sure that I have it all configured correctly.  I think the
problem is with my Juniper setup, hence the reason I am posting this here.




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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