Figure 13-26 Provisioning Osi Routers - Cisco 15454-DS1-14= - 1.544Mbps Expansion Module Reference Manual

13.6.7 OSI Virtual Routers
Figure 13-26
Each router has an editable manual area address and a unique NSAP System ID that is set to the node
MAC address + n. For Router 1, n = 0. For Router 2, n = 1. For Router 3, n = 2. Each router can be
enabled and connected to different OSI routing areas. However, Router 1 is the primary router, and it
must be enabled before Router 2 and Router 3 can be enabled. The Router 1 manual area address and
System ID create the NSAP address assigned to the node's TID. In addition, Router 1 supports OSI
TARP, mediation, and tunneling functions that are not supported by Router 2 and Router 3. These
include:
TID-to-NSAP resolution
•
TARP data cache
•
IP-over-CLNS tunnels
•
FTAM
•
• FT-TD
T-TD
•
• LAN subnet
OSI virtual router constraints depend on the routing mode provisioned for the node.
the number of IS L1s, IS L1/L2s, and DCCs that are supported by each router. An IS Level1 and IS
Level1/Level2 support one ES per DCC subnet and up to 100 ESs per LAN subnet.
Cisco ONS 15454 Reference Manual, R8.5
13-42
Provisioning OSI Routers
Chapter 13 Management Network Connectivity
Table 13-13 shows
78-18106-01