Definity ECS Admin for Network Connectivity.pdf - TextFiles.com

IP Addressing
1 Networking Overview
IP Route Examples
PPP Connections
The diagram below shows three switches in a DCS network with PPP signaling
connections between switches A & B and between switches A & C. All nodes in this
diagram are C-LAN ports. PPP data modules are administered between nodes 1 & 2
on switches A & B, and between nodes 3 & 4 on switches A & C. With these
connections, switch A can communicate with switches B and C without using the IP
Routing screen to administer explicit host IP routes. However, switches B and C need
host IP routes to communicate with each other because they are not directly
connected.
1
SW B
DS1
C-LAN
DCS Signaling over PPP
ppp
SW C
DS1
SW A
DS1
2
C-LAN 3
ppp
The IP routes needed between nodes for this example are listed in the following table.
The Destination Node and Gateway Node columns in the table show the nodes that
you would enter on the IP Routing screen to administer a host IP route. On the IP
Routing screen, you would enter the node names assigned on the Node Names screen
for these nodes.
4
C-LAN
Switch
Node
Connections
Destination
Node
Gateway
Node
B 1 —> 4 4 2
C 4 —> 1 1 3
Route
Type
host
host
Comments
IP route needed
because there is an
intermediate node
between nodes 1 & 4.
IP route needed
because there is an
intermediate node
between nodes 4 & 1.
Note:
Note:
(1) The PPP data modules on switches B and C for the connections to A
must be enabled before the IP routes can be administered.
(2) Nodes 2 and 3 in this example are two ports on the same C-LAN
board. Messages from node 1 destined for node 4 arrive at node 2; the
C-LAN ARP software routes the messages to node 4 through node 3.
Administration for Network Connectivity
555-233-504 — Issue 1 — April 2000 CID: 77730
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