Re: [OSL | CCIE_RS] WB8.0 3.7 Frame map and Broadcast

[Scott Morris]

Sometimes things are done for "whatif" scenarios.  IF you ran a routing protocol you would not want to receive two multicasts/broadcasts for each on there.  It's simply to demonstrate an understanding of the use of the 'broadcast' parameter.   The parameter says that a particular pvc is capable of broadcast/multicast operations.  Being that the interface itself is not (NBMA), this may lead to multiple copies of packets as the router attempts to send things to all capable devices on a multipoint connection.   HTH,   Scott Morris, CCIE4 (R&S/ISP-Dial/Security/Service Provider) #4713, JNCIE #153, CISSP, et al. CCSI/JNCI IPExpert CCIE Program Manager IPExpert Sr. Technical Instructor [EMAIL PROTECTED] http://www.ipexpert.com     From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Gavin Lawson Sent: Friday, June 23, 2006 10:18 AM To: ccie_rs@onlinestudylist.com Subject: [OSL | CCIE_RS] WB8.0 3.7 Frame map and Broadcast Q3.7 States Ensure that R5 and R6 can ping each others interfaces, but this configuration should be performed such that R2 does not receive redundant routing updates.   It looks like not adding the broadcast statement to the static maps is the answer, BUT I am a bit confused since no routing protocol is actually configured. Can any one help?   What does this command actually do on the layer 2 basis? Does it just tell higher level protocols to treat it as a broadcast interface instead of a NBMA?   Can someone give an example of how a packet flow would change when having, then not having the broadcast key word?   GL