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Cisco ONS 15454 Procedure Guide, R7.0
November 2007
Chapter22 DLPs A500 to A599
DLP- A534 Provision OSI Routing Mode
DLP-A534 Provision OSI Routing Mode
Caution Do not complete this task until you confirm the role of the node within the network. It will be either an
ES, IS Level 1, or IS Level 1/Level 2. This decision must be carefully considered. For additional
information about OSI provisioning, refer to the “Management Network Connectivity” chapter of the
Cisco ONS 15454 Reference Manual.
Caution Link State Protocol (LSP) buffers must be the same at all NEs within the network, or loss of visibility
might occur. Do not modify the LSP buffers unless you confirm that all NEs within the OSI have the
same buffer size.
Caution LSP buffer sizes cannot be greater than the LAP-D maximum transmission unit (MTU) size within the
OSI area.
Note For ONS 15454 nodes, three virtual routers can be provisioned. The node primary NSAP address is also
the Router 1 primary manual area address. To edit the primary NSAP, you must edit the Router 1 primary
manual area address. After you enable Router 1 on the Routers subtab, the Change Primary Area Address
button is available to edit the address.
Step1 Complete the DLP-A60 Log into CTC, page 17-69 at the node where you want to provision the OSI
routing mode. If you are already logged in, continue with Step 2.
Step2 In node view, click the Provisioning > OSI > Main Setup tabs.
Step3 Choose a routing mode:
•End System—The ONS 15454 performs OSI end system (ES) functions and relies upon an
intermediate system (IS) for communication with nodes that reside within its OSI area.
Note The End System routing mode is not available if more than one virtual router is enabled.
•Intermediate System Level 1—The ONS 15454 performs OSI IS functions. It communicates with IS
and ES nodes that reside within its OSI area. It depends upon an IS L1/L2 node to communicate with
IS and ES nodes that reside outside its OSI area.
Purpose This task provisions the Open System Interconnection (OSI) routing mode.
Complete this task when the ONS 15454 is connected to networks with
third party network elements (NEs) that use the OSI protocol stack for data
communications network (DCN) communication.
Tools/Equipment None
Prerequisite Procedures NTP-A323 Verify Card Installation, page 4-2
Required/As Needed As needed
Onsite/Remote Onsite
Security Level Provisioning or higher