[j-nsp] L2 mismatch timeouts...

[daniel]

Zvezdelin,

if the link runs clean (run a rapid ping, large packet size, various payloads
to get some additional confirmation), i'd suspect the HP is still sending some
type of unsupported L2 protocol to the router. Perhaps the switch can do port-
mirroring so you can do some sniffing ?

Daniel.


On 10:26 Wed 09 Mar     , Zvezdelin Vladov wrote:
> 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
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