Canoga-perkins 9145 Network Interface Device User Manual download pdf (Page 31)

9145 Network Interface Device

3-11

Software Upgrade

Allows you to download and install new firmware, swap active firmware banks, reset

active firmware.

Manage Logged in Users

View current users logged in to the NID and allows the Administrator to force off user

sessions when needed.

802.3AH OAM

The OAM work of the 802.3ah addresses three key operational issues when deploying

Ethernet between locations: Link Monitoring, Fault Signaling and Remote Loopback.

Link Monitoring introduces some basic error definitions for Ethernet so entities can

detect failed and degraded connections.

Fault Signaling provides mechanisms for one entity to signal another that it has detected

an error.

Remote Loopback , which is often used to troubleshoot networks, allows one station to

put the other station into a state whereby all inbound traffic is immediately reflected back

onto the link. When a Remote Loopback is initiated or invoked at a Local DTE, the Local

DTE generates an event to the system log and a syslog message. Likewise, when a

Remote Loopback is exited, this also generates a system log event and a syslog

message.

OAM Configuration gives you the ability to enable or disable 802.3ah OAM mode. The

Functional Configuration screen allows parameter setting of the OAM mode on a per

port basis.

This allows you the ability to set the 802.3ah OAM mode for the User Port

and Extension Port independently. You can configure each port to 802.3ah Active

Mode, 802.3ah Passive Mode, or Disable 802.3ah OAM.

When 802.3ah OAM Mode is disabled, the 9145 is transparent to 802.3ah OAMPDUs.

All incoming OAMPDUs will pass through the 9145 transparently and the 9145 does not

generate any OAMPDUs (effectively, the OAM Sublayer will be bypassed and all frames

will be forwarded to the superior sublayer).

When a Remote Loopbacks are initiated or invoked from Local 9145, it generates an

event to the system log and generates an equivalent Syslog Message. Likewise, when a

Remote Loopback is exited, the 9145 generates an event to the system log and an

equivalent Syslog message.

There are three types of Link Events: Critical Link Events, Link Events and Dying Gasp

Events.

Critical Link Events are defined as Link Fault, Dying Gasp and Critical Events.

The definitions of the specific faults that comprise these events are defined here.

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Canoga-perkins 9145 Network Interface Device User Manual Page 31