Rapid Spanning Tree Protocol (Rstp); Port Mirroring; Port Redundancy; Link Layer Discovery Protocol (Lldp) - Avaya G450 Manual

Summary of services

Rapid Spanning Tree Protocol (RSTP)

The IEEE 802.1D (STP) and IEEE 802.1w (RSTP) Spanning Tree Protocols are supported on
the ETH LAN ports.

Port mirroring

The G450 supports network traffic monitoring by port mirroring. You can configure port mirroring
on any LAN port. You implement port mirroring by connecting an external traffic probe device to
one of the LAN ports. The probe device monitors traffic that is sent and received through other
ports by copying the packets and sending them to the monitor port.

Port redundancy

You can configure port redundancy on the G450. Port redundancy allows you to provide both a
primary link and a backup link to an important resource.

Link Layer Discovery Protocol (LLDP)

LLDP simplifies network troubleshooting and enhances the ability of network management tools
to discover and maintain accurate network topologies in multi-vendor environments. LLDP
defines a set of advertisement messages (TLVs), a protocol for transmitting the TLVs, and a
method for storing the information contained in the received TLVs. This allows stations attached
to a LAN to advertise information about the system and about the station's point of attachment
to the LAN to other stations attached to the same LAN. These can be reported to the
management station via SNMP MIBs.
LLDP is supported on the front panel ETH LAN ports.

WAN services

The G450 has an internal router and provides direct access to outside WAN lines. You can use
the G450 as the endpoint device for a WAN line. You can also use the G450 as the router for a
WAN line with an external endpoint device.
32 Administration for the Avaya G450 Media Gateway