Draft
HiSpeed Switch Troubleshooting Guide
Hitachi HiSpeed ATM Specifications
❒UNI 3.0 & 3.1 signaling is supported.
❒Conforms to ILMI Registration 3.1 and ILMI MIB 4.0 specifications.
❒Due to memory constraints over the ATM uplink, 16 is the recommended number of PTOP, Trunk, CIP, and LEC instances allowed under heavy traffic load.
❒One LEC per ELAN is recommended.
❒The HiSpeed switch does not support QOS (Quality of Service) parameters. Traffic management on the switch is UBR only.
❒The maximum number of VCCs supported is 1024
ATM Troubleshooting Tips
❒The ATM uplink module must be inserted into the lower PCI slot only.
❒A multimode fiber (MMF) cable is required for use with the 155 Mbps ATM uplink
❒Bind LANE, PTOP, and Trunking services via the port service command. /portserv/config/create 34
❒Enable ILMI for LANE and signaling.
❒Employ an external router for communication between logically separate ELANs for CIP.
❒Every ELAN must have one unique LES/BUS pair for LANE.
❒To join a specific ELAN, an ELAN name must be defined.
❒Ensure the same UNI signaling version is used between the ATM edge devices and the ATM switch.
❒When manually entering the ATM address of the switch, omit the AFI prefix (Ox).
❒Valid Trunk Indexes range from 0 through 15.
❒A VCI value is required when configuring PVC connections. Valid VCI values range from 32 to 1023