With IPHost Network Monitor you can run simple snmp requests against a IBM device in your network.
leArpAtmAddress
le Arp Atm Address
1.3.6.1.4.1.353.5.3.1.1.9.1.2
The non-multiplexed LE Client or Broadcast/Multicast Service ATM address corresponding to the MAC address 'leArpMacAddress'. This value may be determined through the use of the LE_ARP procedure, through source address learning, or through other mechanisms. Some agents may provide write access to this object, as part of their support for 'static' LE_ARP entries. The effect of attempting to write an ATM address to a 'learned' row is explicitly undefined. Agents may disallow the write, accept the write and change the row's type, or even accept the write as-is.
Back to ibm-lec MIB page.
IPHost Network monitor allows you to monitor leArpAtmAddress on IBM device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring IBM switches right now.