[j-nsp] L2 mismatch timeouts...

Zvezdelin Vladov zvladov at gmail.com
Wed Mar 9 03:26:58 EST 2005


Dear All,

I see L2 mismatch timeouts between m7i, 7.1R1.3, with this pic : 2x
F/E, 100 BASE-TX
and HP2524 with:
 Firmware revision  : F.05.22
  ROM Version        : F.02.01

On the HP, I have turned off spanning tree, cdp, on the port where the
juniper is connected.
At the port where juniper is connected, I have only one VLAN-
and this VLAN is turned on the juniper too.
I have set full-duplex 100mbits both on the Juniper and the HP.
I see no errors on the HP side, but see those L2 mismatch timeouts,
nomatter what I do.
I have chaned cables - with no effect.
The port is not loaded... it doesn't go even close to 512Kbit/s.

Any ideas on what might be the cause and how to fix it?

Thank you,

Zvezdelin Vladov

P.S. Here is dump of sho interfaces fe-1/3/0 extensive

Physical interface: fe-1/3/0, Enabled, Physical link is Up
  Interface index: 148, SNMP ifIndex: 75, Generation: 31
  Link-level type: Ethernet, MTU: 1518, Speed: 100mbps, Loopback: Disabled,
  Source filtering: Disabled, Flow control: Disabled
  Device flags   : Present Running
  Interface flags: SNMP-Traps 16384
  Link flags     : None
  CoS queues     : 4 supported
  Hold-times     : Up 0 ms, Down 0 ms
  Current address: 00:12:1e:1c:24:db, Hardware address: 00:12:1e:1c:24:db
  Last flapped   : 2005-03-07 18:29:32 EET (1d 15:55 ago)
  Statistics last cleared: 2005-03-09 10:01:49 EET (00:23:22 ago)
  Traffic statistics:
   Input  bytes  :              1299356                 4168 bps
   Output bytes  :              1302889                 4936 bps
   Input  packets:                 3905                    6 pps
   Output packets:                 3756                    4 pps
  Input errors:
    Errors: 0, Drops: 0, Framing errors: 0, Runts: 0, Policed discards: 0,
    L3 incompletes: 1, L2 channel errors: 0, L2 mismatch timeouts:
702, FIFO errors: 0,
    Resource errors: 0
  Output errors:
    Carrier transitions: 0, Errors: 0, Drops: 0, Collisions: 0, Aged packets: 0,
    FIFO errors: 0, HS link CRC errors: 0, MTU errors: 0, Resource errors: 0
  Queue counters:       Queued packets  Transmitted packets      Dropped packets
    0 best-effort                 3716                 3716                    0
    1 expedited-fo                   0                    0                    0
    2 assured-forw                   0                    0                    0
    3 network-cont                  48                   48                    0
  Active alarms  : None
  Active defects : None
  MAC statistics:                      Receive         Transmit
    Total octets                       1436592          1319553
    Total packets                         4598             3755
    Unicast packets                       3664             3755
    Broadcast packets                      233                0
    Multicast packets                      701                0
    CRC/Align errors                         0                0
    FIFO errors                              0                0
    MAC control frames                       0                0
    MAC pause frames                         0                0
    Oversized frames                         0
    Jabber frames                            0
    Fragment frames                          0
    VLAN tagged frames                       0
    Code violations                          0
  Filter statistics:
    Input packet count                    4598
    Input packet rejects                     0
    Input DA rejects                       702
    Input SA rejects                         0
    Output packet count                                    3755
    Output packet pad count                                   0
    Output packet error count                                 0
    CAM destination filters: 1, CAM source filters: 0
  Autonegotiation information:
    Negotiation status: Incomplete
  Packet Forwarding Engine configuration:
    Destination slot: 1
    CoS transmit queue               Bandwidth               Buffer
Priority   Limit
                              %            bps     %          bytes
    0 best-effort            95       95000000    95              0   
  low    none
    3 network-control         5        5000000     5              0   
  low    none

  Logical interface fe-1/3/0.0 (Index 69) (SNMP ifIndex 78) (Generation 7)
    Flags: SNMP-Traps 16384 VLAN-Tag [ 0x8100.503 ]  Encapsulation: ENET2
    Traffic statistics:
     Input  bytes  :              1298900
     Output bytes  :               339949
     Input  packets:                 3899
     Output packets:                 2472
    Local statistics:
     Input  bytes  :              1257220
     Output bytes  :               339949
     Input  packets:                 3844
     Output packets:                 2472
    Transit statistics:
     Input  bytes  :                41680                  408 bps
     Output bytes  :                    0                    0 bps
     Input  packets:                   55                    1 pps
     Output packets:                    0                    0 pps
    Protocol inet, MTU: 1500, Generation: 14, Route table: 0
      Flags: None
      Addresses, Flags: Preferred Is-Preferred Is-Primary
        Destination: x.x.x.x, Local: x.x.x.x, Broadcast: x.x.x.x,
        Generation: 12


More information about the juniper-nsp mailing list