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Cisco ONS 15454 Procedure Guide, R7.0
November 2007
Chapter22 DLPs A500 to A599
DLP- A548 Delete an IP-Over-CLNS Tunnel
The Cisco proprietary tunnel is slightly more efficient than the GRE tunnel because it does not add
the GRE header to each IP packet. The two tunnel types are not compatible. Most Cisco routers
support the Cisco IP tunnel, while only a few support both GRE and Cisco IP tunnels. You generally
should create Cisco IP tunnels if you are tunneling between two Cisco routers or between a Cisco
router and an ONS node.
Caution Always verify that the IP-over-CLNS tunnel type you choose is supported by the equipment at the other
end of the tunnel.
•IP Address—Enter the IP address of the IP-over-CLNS tunnel destination.
•IP Mask—Enter the IP address subnet mask of the IP-over-CLNS destination.
•OSPF Metric—Enter the OSPF metric for sending packets across the IP-over-CLNS tunnel. The
OSPF metric, or cost, is used by OSPF routers to calculate the shortest path. The default is 110.
Normally, it is not be changed unless you are creating multiple tunnel routes and want to prioritize
routing by assigning different metrics.
•NSAP Address—Enter the destination NE or OSI router NSAP address.
Step4 Click OK.
Step5 Return to your originating procedure (NTP).
DLP-A548 Delete an IP-Over-CLNS Tunnel
Caution Deleting an IP-over-CLNS tunnel might cause the nodes to loose visibility or cause node isolation. If
node isolation occurs, onsite provisioning might be required to regain connectivity. Always confirm
tunnel deletions with your network administrator.
Step1 In node view, click the Provisioning > OSI > Tunnels tabs.
Step2 Choose the IP-over-CLNS tunnel that you want to delete.
Step3 Click Delete.
Step4 Click OK.
Step5 Return to your originating procedure (NTP).
Purpose This task allows you to delete an IP-over-CLNS tunnel.
Tools/Equipment None
Prerequisite procedures DLP-A60 Log into CTC, page 17-69
Required/As needed As needed
Onsite/Remote Onsite or remote
Security Level Provisioning or higher