Troubleshooting guide

Preface
V
RSTP Rapid Spanning Tree Protocol
SA Source Address
SD Secure Digital
SDH Synchronous Digital Hierarchy
SDU Service Data Unit
SEL NSAP SELector
SFD Start Frame Delimiter
SFP Small Form factor Pluggable
SMTP Simple Mail Transfer Protocol
SNAP Sub-Network Access Protocol
SNMP Simple Network Management Protocol
SNP Sequence Numbers PDU
SNPA Subnetwork Point of Attachment
SPF Shortest Path First
SSAP Source Service Access Point
STP Spanning Tree Protocol
TA Terminal Adapter
TACACS+ Terminal Access Controller Access Control System Plus
TCP/IP Transmission Control Protocol/Internet Protocol
TLA ID Top-Level Aggregation Identifier
TLV Type, Length, and Value
TOS Type Of Service
TPID Tag Protocol Identifier
TTL Time To Live
UDLD Uni-Directional Link Detection
UDP User Datagram Protocol
ULR Uplink Redundant
UPC Usage Parameter Control
UPC-RED Usage Parameter Control - Random Early Detection
VAA VLAN Access Agent
VLAN Virtual LAN
VRRP Virtual Router Redundancy Protocol
WAN Wide Area Network
WDM Wavelength Division Multiplexing
WFQ Weighted Fair Queueing
WRED Weighted Random Early Detection
WS Work Station
WWW World-Wide Web
XFP 10 gigabit small Form factor Pluggable
Conventions: KB, MB, GB, and TB
This manual uses the following conventions: 1 KB (kilobyte) is 1,024 bytes.1 MB
(megabyte) is 1,024
2
bytes.1 GB (gigabyte) is 1,024
3
bytes.1 TB (terabyte) is 1,024
4
bytes.
Conventions: The terms "Switch" and "switch"
The term Switch (upper-case "S") is an abbreviation for any or all of the following models:
 AX2200S series switches
 AX1250S series switches
 AX1240S series switches
The term switch (lower-case "s") might refer to a Switch, another type of switch from the
current vendor, or a switch from another vendor. The context decides the meaning.