Cabletron Systems ZX-250 manual Acronyms

		Table of Contents
4.4.1	Event Categories	. . . . . . . . . . 4-9
4.4.2	Viewing Events and Alarms	. . . . . . . . . 4-10
4.4.3	Deleting Events and Alarms	. . . . . . . . . 4-11
4.5	PVC Connections	. . . . . . . . . 4-11
4.5.1	Point-to-Point PVCs	. . . . . . . . . 4-12
4.5.2	Point-to-Multipoint PVCs	. . . . . . . . . 4-12
4.5.3	Connecting to Local Switch Client Through a PVC	. . . . . . . . . 4-14
4.5.4	Non-zero VPIs	. . . . . . . . . 4-14
4.6	Traffic Management	. . . . . . . . . 4-17
4.6.1	Traffic Descriptors	. . . . . . . . . 4-17
4.6.2	Call Admission Control Policy	. . . . . . . . . 4-19
4.6.3	EFCI, EPD, and RM Thresholds	. . . . . . . . . 4-22
4.7	Upgrading and Changing Software	. . . . . . . . . 4-23
4.7.1	Accessing the Boot Load Prompt	. . . . . . . . . 4-23
4.7.2	Boot Load Commands	. . . . . . . . . 4-24
4.7.3	Upgrading Boot Load Software	. . . . . . . . . 4-25
4.7.4	Upgrading POST Diagnostic Software	. . . . . . . . . 4-27
4.7.5	Upgrading Switch Operating Software	. . . . . . . . . 4-28
4.7.6	Using the Update Firmware Command	. . . . . . . . . 4-29
4.8	Saving Core Dumps	. . . . . . . . . 4-30
4.9	Performing Hardware Maintenance	. . . . . . . . . 4-32
4.9.1	Required Tools	. . . . . . . . . 4-32
4.9.2	Internal Components	. . . . . . . . . 4-32
4.9.3	CPU Board	. . . . . . . . . 4-33
4.9.4	Main Switch Module	. . . . . . . . . 4-33
4.9.5	Extended Switch Module	. . . . . . . . . 4-33
4.9.6	I/O Modules	. . . . . . . . . 4-34
4.9.7	Removing a Switch Module	. . . . . . . . . 4-34
4.9.8	Removing I/O Modules	. . . . . . . . . 4-36
4.9.9	Replacing a Switch Module	. . . . . . . . . 4-37
4.9.10	Upgrading Main Switch Module (MSM-16 to MSM-32)	. . . . . . . . . 4-40
4.9.11	Adding an Expansion Switch Module	. . . . . . . . . 4-40
4.9.12	Adding New I/O Modules	. . . . . . . . . 4-40
4.9.13	Adding a Power Supply Module (SmartCell ZX-250r Only)	. . . . . . . . . 4-41
4.9.14	Removing a Power Supply Module (SmartCell ZX-250r Only)	. . . . . . . . . 4-42
4.9.15	Replacing a Fuse	. . . . . . . . . 4-44
5	Troubleshooting	. . . . . . . 5-1
5.1	Troubleshooting IP over ATM	. . . . . . . . . . 5-1
5.2	Troubleshooting LAN Emulation	. . . . . . . . . . 5-2
5.3	Troubleshooting PNNI LinkS	. . . . . . . . . . 5-3
5.4	Troubleshooting Congestion	. . . . . . . . . . 5-3
5.4.1	Diagnosing Congestion	. . . . . . . . . . 5-4
5.4.2	Global Congestion	. . . . . . . . . . 5-4
5.4.3	Port Congestion	. . . . . . . . . . 5-5
A	Acronyms	. . . . . . A-1

x SmartCell ZX-250 User Guide