Nortel Networks BMD00007 manual Learn disableenable, Tag disableenable, Tagpvid disableenable

Alteon OS Command Reference

Table 6-25Port Configuration Menu (/cfg/port)

Command Syntax and Usage

learn disableenable

Enables or disables FDB learning on the port.

tag disableenable

Disables or enables VLAN tagging for this port. It is disabled by default.

tagpvid disableenable

Disables or enables VLAN tag persistence. When disabled, the VLAN tag is removed from pack- ets whose VLAN tag matches the port PVID. The default value is disabled for INT and EXT ports, and enabled for MGT ports.

fastfwd disableenable

Disables or enables Port Fast Forwarding, which permits a port that participates in Spanning Tree to bypass the Listening and Learning states and enter directly into the Forwarding state. While in the Forwarding state, the port listens to the BPDUs to learn if there is a loop and, if dictated by normal STG behavior (following priorities, etc.), the port transitions into the Blocking state. This feature permits the GbESM to interoperate well within Rapid Spanning Tree networks.

floodblk disableenable

Enables or disables port Flood Blocking. When enabled, unicast and multicast packets with unknown destination MAC addresses are blocked from the port.

ena

Enables the port.

dis

Disables the port. (To temporarily disable a port without changing its configuration attributes, refer to “Temporarily Disabling a Port” on page 216.)

cur

Displays current port parameters.

214 „ The Configuration Menu BMD00007, November 2007