Field Name | Description | |
|
| |
|
| |
Port Mode | The operational mode of the port or ports on the | |
| module. Not all modules support all modes. Both | |
| sides of the link must be in the same mode. Flow | |
| Control and ISL (Interswitch Link) are | |
| recommended for backbone links with Lucent | |
| Technologies’ equipment. Note that the Port Speed | |
| field will be insensitive if the Use Switches field is | |
| set to ON. | |
| The components which make up the mode are: | |
| • Half Duplex (HDX) - The port operates in Half | |
|
| Duplex. |
| • Full Duplex (FDX) | |
|
| Duplex and doubles its speed. No repeaters are |
|
| allowed in the path. |
| • Flow Control (FC) - Flow Control is a | |
|
| proprietary mechanism that prevents packet loss |
|
| on the link due to congestion in the Full Duplex |
|
| mode. |
| • Interswitch Link (ISL) - Interswitch Link is a | |
|
| proprietary mechanism to tag packets with |
|
| VLAN and priority information across the |
|
| backbone. This allows two Lucent devices to act |
|
| as a single logical entity. |
| The possible modes are: | |
| • | Half Duplex (HDX) |
| • | Full Duplex (FDX) |
| • Full Duplex and Flow Control (FDX+FC) | |
| • Full Duplex and Interswitch Link | |
|
| (FDX+ISL) |
| • Full Duplex, Flow Control, and Interswitch | |
|
| Link (FDX+FC+ISL) |
|
| |
Port Speed | The Ethernet speed of the port. Port speed can be | |
| either Ethernet (10 Mbps), Fast Ethernet (100 | |
| Mbps), or Gigabit Ethernet (1000 Mbps). Some | |
| units have | |
| 10BaseT/100BaseTX ports, where each port can | |
| work in either 10Mbps or 100Mbps. | |
|
|
|
Cajun M400 Manager User’s Guide | 69 |
