F ram e Re lay Add ress i ng
Frame Relay Layer 2 addresses are DLCIs. I mentioned previously that the WAN DLCIs are analgous to the LAN MACs. ARP is the method I discussed for mapping IP to MAC in the LAN chapters and RARP is just the opposite of mapping MAC to IP. Frame uses Inverse ARP. Routers learn remote P a ddresses to map to local DLCIs via Inverse ARP or static map statements as illustrated in Hgxre 8-9. Use the picture and steps covered in the next section to assist you with troubleshooting Frame Relay Inverse ARP issues.
Continue reading here: Example 856 Forcing r1 to Become the DR
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