Cabletron Systems SmartSTACK 100 - Manual (Page 51)

Configuring Your ELS100-16TX
3-5
To change the subnet mask, at the LCM prompt:
1. Type ipaddr
For example, ipaddr 6 192.138.217.40 255.255.240.0 would set
the subnet mask for port 6 to 255.255.240.0. LCM responds by
redisplaying the current address table.
3.2 ENABLING BRIDGING
The LCM bridge command allows you to set bridging options for a
single port or a range of ports. The options include:
• off
• on (the default with BPDU enabled)
• no BPDU
BPDU (Bridge Protocol Data Unit) is a data unit transmitted as part
of the IEEE 802.1d Spanning Tree protocol. The exchange of BPDUs
allows bridges within a network to logically configure the network
as a single spanning tree.
Note: When you change the subnet mask for a port, you must also enter
the IP address for that port. Make sure you enter the IP address for
the port correctly; whatever you enter becomes the IP address for
that port.
Note: Selecting the noBPDU option could make your network inoperable
because the ELS100-16TX would be unable to detect loops.