Changes between Version 11 and Version 12 of ConnectivityTesting


Ignore:
Timestamp:
07/02/15 16:46:39 (5 years ago)
Author:
asydney@bbn.com
Comment:

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  • ConnectivityTesting

    v11 v12  
    3030Unicast reply from 10.37.5.101 [00:16:B9:CF:FC:40]  30.330ms
    3131}}}
    32  * generating layer-2 traffic to a given IP address. This allows for switches's MAC-port tables to be inspected for your known path to identify a problem. the example below shows the GPO's MAC showing up in the NLR's Boston switch but not NLR's Seattle switch, which helped diagnose the problem.
    33 {{{
    34 # display our MAC
    35 [jwilliams@wyverley ~]$ /sbin/ifconfig eth3 | grep HWaddr
    36 eth3      Link encap:Ethernet  HWaddr 00:0C:29:40:45:1D 
    37 
    38 #generate layer-2 traffic from this MAC
    39 [jwilliams@wyverley ~]$ sudo /sbin/arping -I eth3 10.37.16.90
    40 ARPING 10.37.16.90 from 10.37.16.100 eth3
    41 
    42 #NLR's Boston switch - shows our MAC:
    43   vlan   mac address     type    learn     age              ports
    44 ------+----------------+--------+-----+----------+--------------------------
    45 * 3716  000c.2940.451d   dynamic  Yes          0   Gi9/2
    46 * 3716  001b.902e.f4ca   dynamic  Yes         60   Te1/2
    47 
    48 #NLR's Seattle switch - does NOT show our MAC:
    49   vlan   mac address     type    learn     age              ports
    50 ------+----------------+--------+-----+----------+--------------------------
    51 * 3716  3333.0000.0016    static  Yes          -   Switch,Stby-Switch
    52 }}}
    53 
    54 
     32
     33 * generating layer-2 traffic to a given IP address. This allows for switches's MAC-port tables to be inspected for your known path to identify a problem.
    5534== iperf ==
    5635