Changing Device Configuration | 39 |
14The default setting for the Default Priority Level is 802.1p Priority 0 or 1. You can change this setting to Priority 2 or 3, Priority 4 or 5, or Priority 6 or 7.
The IntelliJack has four traffic queues with two priorities per queue. The lowest numbers (0 and 1) have the lowest priority. The default priority traffic is called “Best Effort” and serves as a baseline priority for all standard Ethernet traffic.
If you want to assign a higher priority to traffic on a particular port (voice traffic, for instance), you can do so. The higher the number the higher the priority (Priority 6 or 7 is the highest). The IntelliJack will send higher priority traffic ahead of lower priority traffic to improve the quality and throughput from that particular port.
15You can associate any of the four ports with any other ports on this IntelliJack to form a VLAN group. You can specify the tag schemes for the VLAN you create.
You can set the VLAN ID (VID) field to any number between 0 and 4094. The default setting is 1, which is the common practice. If all equipment is set at VID 1, you can communicate across all ports.
Since VLANs are used to separate network traffic to make it more manageable and secure, you would change the VID of the individual ports to meet the needs of your network.
In a classroom setting, for example, you may want the teacher to be on a separate VLAN than the students. You could assign VID 10 to Port 1 of the IntelliJack for the teacher and VID 20 to the other ports.
NOTE: The VID of a port must match the upstream switch VLAN assignments. If the IntelliJack’s VID assignments do not match the upstream switch and “add a VLAN tag” is set in the Egress rule, then the traffic that passes from the IntelliJack to the LAN will be dropped at the upstream switch port.
16To change the VLAN mode setting, click the box and select an option from the drop list. You can choose to Disable the VLAN. In this mode, ingress frames are forwarded through default switching rules.
You can also choose Enable unrestricted VLAN. In this mode, the port is associated with the current VLAN ID you have set. Frames ingressed into this port without a VLAN tag or with the same VLAN ID are forwarded within the VLAN. Frames with a different VLAN ID are forwarded according to default switching rules (i.e., based on the destination MAC address). Management packets are able to pass through this port on this setting.
Finally, you can choose Enable restricted VLAN. In this mode, the port is associated with the current VLAN ID you have set. All frames ingressed into this port are forwarded within the same VLAN, and management packets are blocked on this port.
Other Priority & VLAN Settings
17Click the box and select from the drop list to change the Priority Schedule Policy. The default setting is 8,4,2,1 weighted fair queuing scheme.
8,4,2,1 refers to the number of bytes removed from the IntelliJack’s buffer. 8 bytes of the highest priority traffic are removed from the buffer first, then 4 bytes from the second most important, 2 bytes from the third, etc. This is the most common priority scheme because it ensures that important traffic is prioritized but still allows traffic flow for all ports.