Chapter 3: Terminal Menu Operation and Structure

LAN Port/Path Cost Write security: 2; Read security: 5

This is the cost of using the Ethernet port in the total cost of the path. The range is from 1 to 65535 with a default of 100 (for 10 Mbits/second).

LAN Port/Priority Write security: 2; Read security: 5

The priority adjusts the relative priority of the Ethernet port among the multi- ple bridge ports. The range is 0 to 255 with a default of 128.

Spanning Tree/WAN Port 0

The WAN port 0 is considered to be the first PPP BCP connection that occurs over the ISDN link. It can be a single B channel or two B channels running PPP Multilink.

WAN Port 0/Active Write security: 2; Read security: 5

The WAN 0 port can be disabled when set to No. In this mode, no bridge traf- fic will be forwarded in or out. Setting to Yes (def) allows the port to partici- pate in the spanning tree topology.

WAN Port 0/Path Cost Write security: 2; Read security: 5

This is the cost of using the WAN port 0 in the total cost of the path. The range is from 1 to 65535 with a default of 15625 (for 64 kbits/second). Note that when running over two B channels using PPP Multilink, the range does not adjust itself. If it is known that the only WAN port will be WAN port 0 over two B-channels, then the path cost for this port should be changed to 7812 (128 Kbits/second).

WAN Port 0/Priority Write security: 2; Read security: 5

The priority adjusts the relative priority of the WAN port 0 among the multi- ple bridge ports. The range is 0 to 255 with a default of 128.

Spanning Tree/WAN Port 1

WAN port 1 is considered to be the second B channel PPP BCP connection made. This port is only used when the first B channel (WAN Port 0) is going to an entirely different bridge.

54

Express L128/L128T User Manual

61202.070L1-1

Page 71
Image 71
ADTRAN L128T user manual Spanning Tree/WAN Port