A router might be configured to do bridging to support a number of applications or problems:
The IP addressing may have been designed as one big subnet, instead of multiple subnets. Non-routable protocols such as NetBIOS (NetBEUI) or DEC's Local Area Transport (LAT) might be running on the network. The company might have an IBM legacy. IBM traditionally focused on bridging for Token Ring and SNA environments. There might be some other application that actually depends on broadcasts getting forwarded, and broadcast "radiation" might not be considered a problem due to low volume. Bridging might be considered simpler. There's no need for a routing protocol. There's no need to configure a default gateway on the hosts. Priscilla mlehr wrote: > > I have studied for and successfully tested CCNA & CCNP and now > I am studying > for the CCIE written exam. At this point in my studies, I am > reading up on > the subject of Bridging. I fully understand the concept of > bridging when it > comes to switches, but I am perplexed as to why a router would > need to > perform a bridging function. Obviously bridging capabilities > are built into > the routers IOS but what need would prompted anyone to use this > feature. In > the other studies Bridging was not a covered subject so this is > new > territory for me. > > > > Help! > > Mike L. > > Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=60548&t=60546 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
