Cisco Systems 15454M6DC Manual De Usuario

the need to manually enter static routes for ONS 15454 subnetworks. 

 shows the same network 

enabled for OSPF. 

 shows the same network without OSPF. Static routes must be manually 

added to the router in order for CTC computers on LAN A to communicate with ONS 15454 #2 and #3 
because these nodes reside on different subnets.

OSPF divides networks into smaller regions, called areas. An area is a collection of networked end 
systems, routers, and transmission facilities organized by traffic patterns. Each OSPF area has a unique 
ID number, known as the area ID, that can range from 0 to 4,294,967,295. Every OSPF network has one 
backbone area called “area 0.” All other OSPF areas must connect to area 0.

When you enable ONS 15454 OSPF topology for advertising to an OSPF network, you must assign an 
OSPF area ID to the ONS 15454 network. Coordinate the area ID number assignment with your LAN 
administrator. In general, all DCC-connected ONS 15454s are assigned the same OSPF area ID.

CTC Workstation

IP Address 192.168.1.100

Subnet Mask 255.255.255.0

Default Gateway = 192.168.1.1

Host Routes = N/A

Router
IP Address  of interface “A” to LAN A 192.168.1.1
IP Address of interface “B” to LAN B  192.168.2.1
Subnet Mask 255.255.255.0

ONS 15454 #2

IP Address 192.168.3.20

Subnet Mask 255.255.255.0

Default Router = N/A

Static Routes = N/A

ONS 15454 #1
IP Address 192.168.2.10
Subnet Mask 255.255.255.0
Default Router = 192.168.2.1
Static Routes = N/A

ONS 15454 #3
IP Address 192.168.4.30
Subnet Mask 255.255.255.0
Default Router = N/A
Static Routes = N/A

LAN B

LAN A

Int "A"

Int "B"

SONET RING

55250