With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cdeNodeBiuSegment
Cisco DLSW Node Biu Segment
1.3.6.1.4.1.9.9.74.1.2.7
This variable indicates if DLSw will spoof the maximum receivable Basic Information Unit (frame) size in XID so that each end station sends the largest frame it can. True indicates that it will spoof, false indicates that it will not.
Back to CISCO-DLSW-EXT-MIB MIB page.
IPHost Network monitor allows you to monitor cdeNodeBiuSegment on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco firewalls right now.