Re: OT: DLSw reachability; Ethernet MAC addresses

Unbelievable.

On Wed, Feb 10, 2010 at 4:57 PM, Dale Shaw <dale.shaw_at_gmail.com> wrote:

> Hi all,
>
> This one's for the old guys on list who know how DLSw works. Hey, old
> guys, stop stroking your grey beards and thinking about old times, put
> down the ol' pipe and put on your favourite plaid cardigan and
> slippers, I need your help.
>
> We have a DLSw configuration that provides connectivity between
> SNA-speaking devices over a WAN. The devices using the DLSw circuit
> are connected via Ethernet at each site (no Token Ring).
>
> I'm just trying to figure out exactly where the devices at each end
> plug into our layer 2 network (i.e. which switchport). The 'show dlsw
> reachability' command gives me output like so:
>
> switch#sh dlsw reachability
> DLSw Local MAC address reachability cache list
> Mac Addr status Loc. port rif
> 0010.25ed.2600 FOUND LOCAL TBridge-007 --no rif--
> 0040.cd05.1f73 FOUND LOCAL TBridge-007 --no rif--
> 00b0.0698.5d6a FOUND LOCAL TBridge-007 --no rif--
> 00b0.0698.5dea FOUND LOCAL TBridge-007 --no rif--
> 00b0.0698.7d2e FOUND LOCAL TBridge-007 --no rif--
> [...]
>
> The thing is, I can't trace those MACs using the usual "show
> mac-address-table address .." method.
>
> switch#sh mac-address-table address 00b0.0698.5d6a
> Legend: * - primary entry
> age - seconds since last seen
> n/a - not available
>
> vlan mac address type learn age ports
>
> ------+----------------+--------+-----+----------+--------------------------
> No entries present.
>
> The DLSw config is pretty simple:
>
> interface Loopback0
> ip address 10.0.0.1 255.255.255.255
> !
> dlsw local-peer peer-id 10.0.0.1
> dlsw remote-peer 0 tcp 10.0.0.200
> dlsw bridge-group 7
> !
> interface Vlan6
> ip address 192.168.108.1 255.255.255.0
> bridge-group 7
> bridge-group 7 spanning-disabled
> !
> interface Vlan60
> ip address 192.168.109.1 255.255.255.0
> bridge-group 7
> bridge-group 7 spanning-disabled
> !
> end
>
> Why is it so? How can I find the endpoints using the DLSw circuit?
>
> Cheers,
> Dale
>
>
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-- 
Narbik Kocharians
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