3Com 6416SW Installation And User Manual

Checking ATM Address RegistrationIf you suspect that a Phase 3 problem is due to faulty ATM address registrationbetween a ONcore hub and an attached ATM device, follow these steps:1. Enter the SHOW PORT command to make sure that the ATM media port isconfigured with a UNI interface. If not, enter the SET PORT command and specifyuni for the interface parameter.2. Make sure that the attached device supports the ATM network prefix used by theONcore hub.To display the network prefix, enter the SHOW DEVICE command and note theleftmost thirteen bytes of the hub's ATM address. (See Appendix E, “ONcore ATMAddress Formats” on page E-1 for more information.)Check the ATM network prefix supported by the device. If it is different from theprefix set for the hub, use the SET DEVICE ATM_ADDRESS command to changethe hub's ATM address so that its network prefix is the same as the network prefixused by the ATM device. Be sure to reconfigure the ATM address of other ONcorehubs that are also attached to the hub.3. Make sure that the device supports ATM address registration. To check whetherthe device registered its ATM address, use the command SHOW ATM_ESI. If, forexample, the port on the ATM device is configured as Okay PVC-Only, the devicesupports only PVC connections.4. Make sure that the device is not using a protocol for ATM address registration thatis incompatible with the protocol used by the ONcore hub.5. Contact your 3Com service representative.7-22 ONcore ATM Switch/Control Module: Installation and User's Guide