CANOGA PERKINS 9145E Network Interface Device Software Version 2.1 User Manual

Page 57

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Port Information

9145E NID Software User’s Manual

Port Configuration

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5.

RMTF - Remote Fault (RMTF) allows an alarm to be transmitted to the link partner to indicate loss
of signal on receive. When a link loss is detected, the port stops transmitting service traffic on the
port and begins to transmit the Remote Fault signal so the connected link knows the link is no
longer operational. RMTF is only available on optical (SFP) ports.

A port that is receiving Remote Fault is treated as if the link is down for purposes of Link Loss
Forwarding and alarming. Even though the link is still up, only Remote Fault is being received and
service traffic is not flowing. Once the link fault is corrected, Remote Fault transmission is
automatically terminated and service traffic flow will resume.

Use the Space Bar to cycle between User Port Enabled, Net Port Enabled, Both Ports Enabled,
and Disabled.

6.

LLF - Enables or disables Link Loss Forwarding (LLF). Link Loss Forwarding allows the 9145E to
signal attached equipment that a link has gone down by bringing down the attached link.

If User->Network is selected, if the User Port link is down, the Network Port will be disabled.

If Network->User is selected, the User Port will be disabled if the Network Port goes down.

If Both Directions is selected, either port can bring down the other port. LLF can only be active in
one direction at a time, however. When the original link is restored, the partner link is also restored.

Use the Space Bar to cycle between User->Network, Network->User, Both Directions, or Disabled.

7.

Flow Control - Enables or disables flow control on the ports. Flow control is used for 9145E's that
have a speed mismatch between the user port and the network port and are attached to
equipment which can buffer overflow traffic. If Flow Control is enabled the 9145E will begin to
transmit PAUSE frames when its buffers are 3/4ths full. Use the Space Bar to cycle between User
Port Enabled, Net Port Enabled, Both Ports Enabled, and Disabled.

8.

Maximum Frame Size - Sets the maximum allowable Ethernet Frame size the 9145E will forward
for both ports. Frames exceeding the Maximum Frame Size will be counted as Oversize Packets
and will be dropped. Frames destined for the 9145E Manager are exempt from the limit.

Enter the Maximum Frame Size between 1518 and 10000.

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