Lucent Technologies PortMaster Manual Do Utilizador
Frame Relay Configuration on the PortMaster
13-4
PortMaster Configuration Guide
Frame Relay Configuration on the PortMaster
You configure Frame Relay by selecting the Frame Relay protocol, setting the IP address
of the port, and specifying the DLCIs during the synchronous port configuration.
of the port, and specifying the DLCIs during the synchronous port configuration.
Alternatively, the PortMaster can discover DLCIs dynamically with LMI or Annex-D and
learn the IP addresses of the other routers through Inverse ARP if the other routers on
your Frame Relay cloud support Inverse ARP as specified in RFC 1490. In this
configuration, the PortMaster sends an LMI status request every 10 configurable seconds
by default. Every sixth request is a full status request, and the others are keepalives. In
this configuration, the port state is CONNECTING until it receives three replies from the
switch; then the port state becomes ESTABLISHED. After six unanswered requests, the
PortMaster resets the port.
learn the IP addresses of the other routers through Inverse ARP if the other routers on
your Frame Relay cloud support Inverse ARP as specified in RFC 1490. In this
configuration, the PortMaster sends an LMI status request every 10 configurable seconds
by default. Every sixth request is a full status request, and the others are keepalives. In
this configuration, the port state is CONNECTING until it receives three replies from the
switch; then the port state becomes ESTABLISHED. After six unanswered requests, the
PortMaster resets the port.
Figure 13-1 shows an example of a Frame Relay connection.
Note – All synchronous ports require an external clock signal to regulate the port speed.
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