Re: [tkined] Getting MAC address off Cisco Switch

Jan.Klingel@edag-us.com
Tue, 5 Oct 1999 15:29:24 -0400

Hi there,

the dot1dTpFdb table contains exactly the same information. The following
example are the first five lines out of this table. Port 26 (this is the uplink
port) learnt 3 MAC addresses, port 2 knows one and port 6 knows one. Now some
ports are missing in this table and some MAC addresses are collected together on
port 26.

dot1dTpFdbAddress dot1dTpFdbPort dot1dTpFdbStatus
00:E0:2B:62:31:00 26 learned
08:00:20:71:4D:1D 26 learned
00:10:4B:0B:9E:DD 26 learned
08:00:69:0B:B0:28 2 learned
00:00:AA:55:90:D9 6 learned

Regards

Jan
---cut---

I am not familiar with the 1900A model number. However, we use many cisco
switches, including 1924's in variuous configurations, and I find the port
address info in the dot1dTpFdbTable. The dot1d section of MIB 2 (section
17) has much of the bridge specific stuff.

Jan Klingel <Jan.Klingel@edag-us.com> on 10/01/99 12:43:19 PM

To: tkined@ibr.cs.tu-bs.de
cc: (bcc: Bob Pekarske/Tuc/BB1)
Subject: Re: [tkined] Getting MAC address off Cisco Switch

Hi there,

to answer all the questions I received regarding the Cisco 1900A switch
bank: Only one active device (Sun server/workstation) is connected to
each port. E.g. port 4 has machine 08-00-20-AC-B3-63 connected but only
the Cisco management software will tell me so, MIP-2s OID is empty for
this port. At the same time the uplink port holds 15 MAC addresses, but
not this one...

Best regards

Jan

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