> For the complete documentation index, see [llms.txt](https://doc.engenius.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://doc.engenius.ai/home-ecs-user-manual/configure/untitled.md).
# Port Settings
## Port
The port settings page allows you change the configuration of the ports on the switch in order to find the best balance of speed and flow control according to your preferences. Configuring Gigabit ports require additional factors to be considered when arranging your preferences for the switch compared to 10/100 ports.
| **Item** | **Description** |
| ---------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| **Port** | Displays the port number. |
| **Link Status** | Indicates whether the link is up or down. |
| **Mode** |
Select the speed and the duplex mode of the Ethernet connection on this port.
Selecting Auto (auto-negotiation) allows one port to negotiate with a peer port automatically to obtain the connection speed and duplex mode that both ends support. When auto-negotiation is turned on, a port on the switch negotiates with the peer automatically to determine the connection speed and duplex mode. If the peer port does not support auto-negotiation or turns off this feature, the switch determines the connection speed by detecting the signal on the cable and using half duplex mode. When the switch's auto-negotiation is turned off, a port uses the pre-configured speed and duplex mode when making a connection, thus requiring you to make sure that the settings of the peer port are the same in order to connect.
|
| **Flow Control** |
A concentration of traffic on a port decreases port bandwidth and overflows buffer memory causing packet discards and frame losses. Flow Control is used to regulate transmission of signals to match the bandwidth of the receiving port. The switch uses IEEE 802.3x flow control in full duplex mode and backpressure flow control in half duplex mode.
IEEE 802.3x flow control is used in full duplex mode to send a pause signal to the sending port, causing it to temporarily stop sending signals when the receiving port memory buffers fill.
Back Pressure flow control is typically used in half duplex mode to send a "collision" signal to the sending port (mimicking a state of packet collision) causing the sending port to temporarily stop sending signals and resend later.
|
## Port Isolation
Port Isolation feature provides L2 isolation between ports within the same broadcast domain. When enabled, Isolated ports can forward traffic to **Not Isolated ports,** but not to other **Isolated ports. Not Isolated ports** can send traffic to any port whether **Isolated or Not Isolated**. The default setting is Not Isolated.
Click **Apply** to update the system settings.
## Mirror
Mirror settings mirror network traffic by forwarding copies of incoming and outgoing packets from specific ports to a monitoring port. The packet that is copied to the monitoring port will be the same format as the original packet.
Port mirroring is useful for network monitoring and can be used as a diagnostic tool. Use port mirroring to send traffic to applications that analyze traffic for purposes such as monitoring compliance, detecting intrusions, monitoring, and predicting traffic patterns, and other correlating events. Port mirroring is needed for traffic analysis on a switch because a switch normally sends packets only to the port to which the destination device is connected. The analyzer captures and evaluates the data without affecting the client on the original port. Port mirroring can consume significant CPU resources while active, so be cautious of such usage when configuring the switch.
| **Item** | **Description** |
| -------------------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| **Session ID** | A number identifying the mirror session. This switch only supports up to 4 mirror sessions. |
| **Destination Port** | Select the port for traffic purposes from source ports mirrored to this port. |
| **Egress/Ingress (Source TX/RX Port)** |
Sets the source port from which traffic will be mirrored.
TX Port: Only frames transmitted from this port are mirrored to the destination port.
RX Port: Only frames received on this port are mirrored to the destination port.
Both: Frames received and transmitted on this port are mirrored to the specified destination port.
None: Disables mirroring for this port.
|
| **Egress & Ingress State** | Select whether to enable or disable ingress traffic forwarding. |
| **Session State** | Select whether to enable or disable port mirroring. |
## Jumbo Frame
Ethernet has used the 1500-byte frame size since its inception. Jumbo frames are network-layer PDUs that have a size much larger than the typical 1500-byte Ethernet Maximum Transmission Unit (MTU) size. Jumbo frames extend Ethernet to 9000 bytes, making them large enough to carry an 8 KB application datagram plus packet header overhead. If you intend to leave the local area network at high speeds, the dynamics of TCP will require you to use large frame sizes.
The switch supports a jumbo frame size of up to 9216 bytes. Jumbo frames need to be configured to work on the ingress and egress port of each device along the end-to-end transmission path. Furthermore, all devices in the network must also be consistent on the maximum jumbo frame size, so it is important to do a thorough investigation of all your devices in the communication paths to validate their settings.
| **Item** | **Descriptio** |
| --------------- | -------------------------------------------------------------------- |
| **Jumbo Frame** | Enter the size of jumbo frame. The range is from 1522 to 9216 bytes. |
Click **Apply** to update the system settings.
## LLDP
Link Layer Discovery Protocol (LLDP) is the IEEE 802.1AB standard for switches to advertise their identity, major capabilities, and neighbors on the 802 LAN. LLDP allows users to view the discovered information to identify system topology and detect faulty configurations on the LAN. LLDP is essentially a neighbor discovery protocol that uses Ethernet connectivity to advertise information to devices on the same LAN and store information about the network. The information transmitted in LLDP advertisements flow in one direction only: from one device to its neighbors. This information allows the device to quickly identify a variety of other devices, resulting in a LAN that interoperates smoothly and efficiently.
LLDP transmits information as packets called LLDP Data Units (LLDPDUs). A single LLDPDU is transmitted within a single 802.3 Ethernet frame. A basic LLDPDU consists of a set of Type-Length-Value elements (TLV), each of which contains information about the device. A single LLDPDU contains multiple TLVs. TLVs are short information elements that communicate complex data. Each TLV advertises a single type of information.
### **Global Settings**
Select whether to enable or disable the LLDP feature on the switch. Next, enter the Transmission Interval, Holdtime Multiplier, Reinitialization Delay parameter, and the Transmit Delay parameter. When finished, click Apply to update the system settings.
| **Item** | **Description** |
| -------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| **State** | Select Enabled or Disabled to activate LLDP for the switch. |
| **Transmission Interval** | Enter the interval at which LLDP advertisement updates are sent. The default value is 30. The range is from 5 to 32768. |
| **Holdtime Multiplier** | Enter the amount of time that LLDP packets are held before packets are discarded and measured in multiples of the Advertised Interval. The default is 4. The range is from 2 to 10. |
| **Reinitialization Delay** | Enter the amount of time of delay before reinitializing LLDP. The default is 2. The range is from 1 to 10. |
| **Transmit Delay** | Enter the amount of time that passes between successive LLDP frame transmissions. The default is 2 seconds. The range is from 1 to 8191 seconds. |
### **Local Device**
LLDP devices must support chassis and port ID advertisement, as well as the system name, system ID, system description, and system capability advertisements. Here, you can view detailed LLDP information for the switch.
| **Item** | **Description** |
| -------------------------- | ------------------------------------------------------------------ |
| **Chassis ID Subtype** | Displays the chassis ID type. |
| **Chassis ID** | Displays the chassis ID of the device transmitting the LLDP frame. |
| **System Name** | Displays the administratively assigned device name. |
| **System Description** | Describes the device. |
| **Capabilities Supported** | Describes the device functions. |
| **Capabilities Enabled** | Describes the device functions. |
| **Port ID Subtype** | Displays the port ID type. |
### **Remote Device**
LLDP devices must support chassis and port ID advertisement, as well as the system name, system ID, system description, and system capability advertisements. From here you can view detailed LLDP Information for the remote device.
| **Item** | **Description** |
| -------------------------------------------- | -------------------------------------------------------------------------- |
| **Port** | Displays the port. |
| **Chassis ID Subtype** | Displays the chassis ID type. |
| **Chassis ID** | Displays the chassis ID of the device that is transmitting the LLDP frame. |
| **Port ID Subtype** | Displays the port ID type. |
| **Remote ID** | Displays the remote ID. |
| **System Name** | Displays the administratively assigned device name. |
| **Time to Live** | Displays the time to live. |
| **Auto-Negotiation Supported** | Displays state for the auto-negotiation supported. |
| **Auto-Negotiation Enabled** | Displays state for the auto-negotiation enabled. |
| **Auto-Negotiation Advertised Capabilities** | Displays the type of auto-negotiation advertised capabilities. |
| **Operational MAU Type** | Displays the type of MAU. |
| **802.3 Maximum Frame Size** | Displays the maximum size of 802.3 maximum frame. |
| **802.3 Link Aggregation Capabilities** | Displays the 802.3 Link Aggregation capabilities. |
| **802.3 Link Aggregation Status** | Displays the status of 802.3 Link Aggregation. |
| **802.3 Link Aggregation Port ID** | Displays the port ID of 802.3 Link Agg**regation.** |
## **ONVIF Discovery**
ONVIF (Open Network Video Interface Forum) discovery is a protocol used for discovering and managing IP-based security devices, such as cameras, on a network. It allows compatible devices to communicate and work together seamlessly, regardless of the manufacturer. ONVIF discovery helps in identifying and configuring these devices automatically, making it easier to integrate and manage IP security systems.
### Global Settings
Select whether to enable or disable the ONVIF Discovery feature on the switch. Next, enabled or disable the feature, and the discovery interval parameter. When finished, click Apply to update the system settings.
| **Item** | **Description** |
| ---------------------- | ----------------------------------------------------------------------------------------------------- |
| **State** | Select Enabled or Disabled to activate ONVIF Discovery on the switch. |
| **Discovery Interval** | Enter the time interval at which the switch scans or checks the network for ONVIF-compatible devices. |
### Remote Device
| **Item** | **Description** |
| --------------- | ------------------------------------------------------- |
| **Port** | Displays the port. |
| **Name** | Displays the administratively assigned device name. |
| **IP Address** | Displays the IP Address of the ONVIF compliant device. |
| **MAC Address** | Displays the MAC Address of the ONVIF compliant device. |
| **Hardware** | Display the hardware of the ONVIF compliant device. |
Click the **Refresh** button to refresh the entry list, and click the **Detail** button to show the ONVIF device information in detail.
## CDP (Cisco Discovery Protocol)
CDP functions by exchanging messages between directly connected devices. By default, these messages are sent every 60 seconds, though this interval can be adjusted based on the administrator's requirements. The primary objective of these messages is to provide detailed information about each device within the network.
### Global Setting
These settings allow for fine-tuning the behavior and monitoring of CDP, ensuring that the network's discovery protocol operates efficiently and securely. Click the **Apply** button to save the modified setting.
| **Item** | **Description** |
| ------------------------------ | --------------------------------------------------------------------------------------------- |
| **CDP State** | Enables or disables the CDP. |
| **Voice VLAN Advertisement** | Enables or disables the advertisement of voice VLANs. |
| **Mandatory TLVs Validation** | When enabled, validates mandatory Type-Length-Values (TLVs) in CDP packets. |
| **Version** | Selects the CDP version (1 or 2). |
| **Hold Time** | Specifies the hold time in seconds for CDP packets before they are discarded (range: 10-255). |
| **Transmission Interval** | Defines the interval in seconds at which CDP packets are sent (range: 5-254). |
| **Device ID Format** | Determines the format of the device ID in CDP packets (MAC address or Serial Number). |
| **Voice VLAN Mismatch Notify** | Enables or disables notifications for voice VLAN mismatches. |
| **VLAN Mismatch Notify** | Enables or disables notifications for general VLAN mismatches. |
| **Duplex Mismatch Notify** | Enables or disables notifications for duplex mismatches. |
### Port
| **Item** | **Description** |
| ------------------------------ | ---------------------------------------------------------------------------------------------------------------------------- |
| **Port** | Displays the port. |
| **CDP State** | Enables or disables CDP for the specific port. |
| **Voice VLAN Mismatch Notify** | Notification Status to alert the administrator if there is a mismatch in the voice VLAN configuration. |
| **VLAN Mismatch Notify** | Notification Status to alert the administrator if there is a mismatch in the VLAN configuration. |
| **Duplex Mismatch Notify** | Notification Status to alert the administrator if there is a mismatch in the duplex configuration between connected devices. |
Click the **Edit** button to modify the settings, and click the **Apply** button to apply the modified setting, or the **Cancel** button to cancel.
### Local Device
Provides detailed information about the local devices connected to each port on the switch using the Cisco Discovery Protocol (CDP). This data helps administrators manage and troubleshoot network configurations by providing insights into the devices directly connected to the switch.
| **Item** | **Description** |
| -------------------- | --------------------------------------------------------------------------- |
| **Port ID** | Displays the port. |
| **CDP Status** | Indicates whether CDP is enabled or disabled on the port. |
| **Device ID** | The unique identifier (MAC address) of the device connected to the port. |
| **System Name** | The name of the system or device connected to the port. |
| **Address 1** | The primary IP address of the connected device. |
| **Address 2** | The secondary IP address of the connected device (if available). |
| **Address 3** | An additional IP address of the connected device (if available). |
| **Capabilities** | Describes the capabilities of the connected device (e.g., switch, router). |
| **CDP Version** | The version of the CDP protocol the connected device is using. |
| **Platform** | The make and model of the connected device. |
| **Software Version** | The version of the software running on the connected device. |
| **Duplex** | Indicates the duplex mode (e.g., full, half) of the connection on the port. |
### Remote Device
Provides information about devices that are discovered via CDP on the remote end of the connections from the local switch. This allows network administrators to gather information about directly connected neighboring devices, aiding in network management and troubleshooting.
| **Item** | **Description** |
| ----------------------- | ------------------------------------------------------------------------------------ |
| **Device ID** | The unique identifier (MAC address) of the device connected to the port. |
| **System Name** | The name of the remote system or device. |
| **CDP Version** | The version of the CDP protocol the remote device is using. |
| **Time to Live** | The time (in seconds) the information about the remote device is considered valid. |
| **Local Interface** | The interface on the local switch that is connected to the remote device. |
| **Neighbour Interface** | The interface on the remote device that is connected to the local switch. |
| **Addresses** | The IP address of the remote device. |
| **Capabilities** | Describes the capabilities of the remote device (e.g., switch, router). |
| **Platform** | The make and model of the remote device. |
| **Duplex** | Indicates the duplex mode (e.g., full, half) of the connection on the remote device. |
## Multicast Filtering
Select Enabled or Disabled for Multicast Filtering. Click **Apply** to save settings.
## EEE
Energy Efficient Ethernet (EEE), an Institute of Electrical and Electronics Engineers (IEEE) 802.3az standard, reduces the power consumption of physical layer devices during periods of low link utilization. EEE saves energy by allowing PHY non-essential circuits to shut down when there is no traffic.
Network administrators have long focused on the energy efficiency of their infrastructure, and the EnGenius Layer 2 switch complies with the IEEE’s Energy-Efficient Ethernet (EEE) standard. The EEE compliant switch offers users the ability to utilize power that Ethernet links use only during data transmission. Lower Power Idle (LPI) is the method for achieving the power saving during Ethernet ideal time.
Use the **EEE** configuration page to configure Energy Efficient Ethernet.
| **Item** | **Description** |
| -------------- | -------------------------------------------------------- |
| **Port** | Display the port for which the EEE setting is displayed. |
| **EEE Status** | Enable or disable EEE for the specified port. |
Click **Apply** to save settings.
---
# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.
## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.
Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:
```
GET https://doc.engenius.ai/home-ecs-user-manual/configure/untitled.md?ask=&goal=
```
`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.
Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.