Cabletron Systems 04-0053-01 manual Iisp Routing Considerations

IISP Routes Routing

Note For IISP routes, always set the Type parameter of the add atmroute command to

external. This indicates that the route is external to the PNNI domain.

Note The add atmroute command allows you to specify a set of metrics to be used with the route. Metrics are created using the add pnnimetric command, and are assigned to routes by metric tag numbers. By setting the appropriate administrative weights within metrics, it’s possible to create parallel load-sharing or fail-over routes. For more information about metrics, administrative weights, and metric tags, see Section 4.4, Route Metrics.

5.Enter the show atmroute command to determine whether the route was created:

SmartSwitch # show atmroute
AddressNumber(ALL)			:
No. Port		Route Address		Type Protocol
================================================================================
1	7B4	39:00:00:00:00:00:00:00:00:00:14:41:80:00:20:d4:14:41:80		I	MGMT
2	7B4	39:00:00:00:00:00:00:00:00:00:14:41:80:00:20:d4:14:41:81		I	MGMT
3	--	39:00:00:00:00:00:00:00:00:00:14:59:00		I	PNNI
4	--	39:00:00:00:00:00:00:00:00:00:28:e9:80		I	PNNI
5	--	39:00:00:00:00:00:00:00:00:00:28:f5:00		I	PNNI
6	7B4	47:00:79:00:00:00:00:00:00:00:00:00:00:00:a0:3e:00:00:01		I	MGMT
7	5B2	52:00:00:00:00:00:00:00:00:00:14:51:80		I	MGMT — This is our route

SmartSwitch #

The route to the IISP device appears as Route 7, and with Protocol Type of MGMT (management).

6.Create a route on the IISP device that refers to the netprefix

(39:00:00:00:00:00:00:00:00:00:14:41:80) of port 5b2 on the SmartSwitch 6500.

Note For IISP routes to work with certain devices, ILMI may need to be disabled on the ATM SmartSwitch. Use the set portconfig command to disable ILMI on the ATM SmartSwitch on a per-port basis.

4.2.1IISP Routing Considerations

When creating routes between an ATM SmartSwitch (running PNNI) and IISP devices, the criteria that characterize IISP connectivity still apply. To reach an ATM SmartSwitch within the PNNI domain, the IISP device must have a configured route that points directly to a port on the target ATM SmartSwitch. Conversely, there must be an ATM SmartSwitch that has a direct physical link (and a route over that link) to the IISP device. The following two examples illustrate this point.

4-2 SmartSwitch ATM User Guide