What Is An Ethernet Loop, And How Do I Avoid Creating One; Ip Addresses; Can I Modify The Ip Address Of The Oam Port; What Are The Default Ip Addresses Of The Bcm450 Ports - Nortel BM450 Troubleshooting Manual

96 Chapter 11 Frequently Asked Questions

What is an Ethernet loop, and how do I avoid creating one?

The BCM450 does not support the Bridging Protocol Data Unit (BPDU), and therefore, you must
be careful not to create Ethernet lops in the network while connected ot these two ports.
Figure 17 shows and Ethernet loop and how to avoid it.
Figure 17 Ethernet loops
Ethernet Loop
BCM450
Hub /

IP addresses

This section answers the following questions:
•

Can I modify the IP address of the OAM port?

•

What are the default IP addresses of the BCM450 ports?

Can I modify the IP address of the OAM port?
You cannot change the IP address of the OAM port. You can use Element Manager to view the
OAM port parameters.
What are the default IP addresses of the BCM450 ports?
The default addresses of the OAM LAN port are:
• IP address: 10.10.11.1
NN40160-700 NN40160-700
Hub /
No Ethernet Loop
BCM450
Hub /
on page 96
on page 96
Hub /