Allied Telesis 2.6.1 - page 96

96 AT-8800 Series Switch User Guide

Software Release 2.6.1

C613-02039-00 REV A

Figure 20: Example output from the SHOW STP COUNTER command

STP Counters

------------------------------------------------------------

STP Name: default

Receive: Transmit:

Total STP Packets 0 Total STP Packets 1677

Configuration BPDU 0 Configuration BPDU 0

TCN BPDU 0 TCN BPDU 0

RST BPDU 0 RSTP BPDU 1677

Invalid BPDU 0

Discarded:

Port Disabled 0

Invalid Protocol 0

Invalid Type 0

Invalid Message Age 0

Config BPDU length 0

TCN BPDU length 0

RST BPDU length 0

------------------------------------------------------------

Table 20: Parameters in the output of the SHOW STP COUNTER command.

Parameter Meaning

STP Name The name of the STP.

Receive STP packets received.

Total STP Packets The total number of STP packets received. Valid STP

packets comprise Configuration BPDUs and Topology

Change Notification (TCN) BPDUs.

Configuration BPDU The n umber of valid Configuration BPDUs received.

TCN BPDU The number of valid Topology Change Notification BPDUs

received.

RST BPDU The number of valid Rapid Spanning Tree BPDUs received

(RAPID mode only).

Invalid BPDU The number of invalid STP packets received.

Tran sm it STP packets transmitted.

Total STP packets The total number of STP packets transmitted.

Configuration BPDU The number of Configuration BPDUs transmitted.

TCN BPDU The number of Topology Change Notification BPDUs

transmitted.

RST BPDU The number of valid Rapid Spanning Tree BPDUs

transmitted (RAPID mode only).

Discarded STP packets discarded.

Port Disabled The number of BPDUs discarded because the port that the

BPDU was received on was disabled.

Invalid Protocol The number of STP packets that had an invalid Protocol

Identifier field or invalid Protocol Version Identifier field.

Invalid Type The number of STP packets that had an invalid Type field.

Invalid Message Age The number of STP packets that had an invalid message

age.

Contents

Main Page Contents Page Page Page Chapter 1 Introduction Introducing the AT-8800 Series Switch Why Read this User Guide? Where To Find More Information The AT-8800 Series Switch Documentation Set Online Technical Support Features of the AT-8800 Series Switch Management Features Software Features Special Feature Licences Warning about FLASH memory Chapter 2 Getting Started with the Command Line Interface (CLI) Connecting a Terminal or PC Terminal Communication Parameters Logging In Assigning an IP Address Setting Routes Changing a Password Choosing a Password Using the Commands Aliases Getting Command Line Help Enabling Special Feature Licences Setting System Parameters Chapter 3 Getting Started with the Graphical User Interface (GUI) What is the GUI? Accessing the Switch via the GUI Browser and PC Setup HTTP Proxy Servers Establishing a Connection to the Switch Start here Option 1: Configuring the Switch before Installation Option 2: Installing the Switch into the LAN AT-8800 Series Switch PC Hub or Layer 2 Switch Page Option 3: Connecting to an Installed Switch Secure Access Page System Status Using the GUI: Navigation and Features The Configuration Menu Using Configuration Pages Page Editable Fields Ports Graphic Apply Button Cancel Button Close Button The Management Menu The Monitoring Menu The Diagnostics Menu Changing the Password Context Sensitive GUI Help Saving Configuration Entered with the GUI Combining GUI and CLI Configuration Configuring Multiple Devices Upgrading the GUI Troubleshooting Deleting Temporary Files Accessing the Switch via the GUI Tra ffi c Fl ow IP Addresses and DHCP Time and NTP Loading Software Page Chapter 4 Operating the switch User Accounts and Privileges Page Normal Mode and Security Mode Page Remote Management Storing Files in FLASH Memory Using Scripts Saving the Switchs Configuration Storing Multiple Scripts Loading and Uploading Files File Naming Conventions Loading Files Setting LOADER Defaults Example: Load a Patch File Using HTTP Uploading Files From the Switch Example: Upload a Configuration File Using TFTP More information Upgrading Switch Software Example: Upgrade to a New Software Release Using TFTP Page Example: Upgrade to a new patch file Using the Built-in Editor SNMP and MIBs For More About Operations and Facilities Page Chapter 5 Layer 2 Switching Switch Ports Enabling and Disabling Switch Ports To enable or disable a switch port, use the commands: To display information about switch ports, use the command: Page Autonegotiation of Port Speed and Duplex Mode Port Trunking Page Packet Storm Protection Port Mirroring Port security Virtual Local Area Networks (VLANs) VLAN Tagging Page VLAN Membership using VLAN Tags VLAN Membership of Untagged Packets Creating VLANs Page Summary of VLAN tagging rules Protected VLANs VLAN Interaction with STPs and Trunk Groups Generic VLAN Registration Protocol (GVRP) Layer 2 Switching Process The Ingress Rules The Learning Process The Forwarding Process Layer 2 Filtering Page The Egress Rules Quality of Service Spanning Tree Protocol (STP) Spanning Tree Modes Spanning Tree and Rapid Spanning Tree Port States Configuring STP Page Page Page Page Page Page To show STP counters, use the command: Page Interfaces to Layer 3 Protocols IGMP Snooping Page Page Triggers Chapter 6 Layer 3 Internet Protocol (IP) IP Multicasting Routing Information Protocol (RIP) Novell IPX AppleTalk Resource Reservation Protocol (RSVP) Page Chapter 7 Maintenance and Troubleshooting How the Switch Starts Up How to Avoid Problems Set system territory Backup software files Backup configuration script Backup switch Configure logging Configure Firewall FLASH compaction Watch for software updates What to Do if You Clear FLASH Memory Completely What to Do if the PPP Link Disconnects Regularly What to Do if Passwords are Lost Getting the Most Out of Technical Support Resetting Switch Defaults Checking Connections Using PING Troubleshooting IP Configurations Troubleshooting DHCP IP Addresses Troubleshooting IPX Configurations Using Trace Route for IP Traffic