Cisco Sg3008 Manual
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Administration: Discovery Configuring LLDP 108 Cisco Small Business 200, 300 and 500 Series Managed Switch Administration Guide (Internal Version) 8 •VLAN Type—VLAN type for which the network policy is defined. The possible field values are: - Ta g g e d—Indicates the network policy is defined for tagged VLANs. - Untagged—Indicates the network policy is defined for untagged VLANs. •User Priority—Network policy user priority. •DSCP—Network policy DSCP. Displaying LLDP Neighbors Information The LLDP Neighbors Information page contains information that was received from neighboring devices. After timeout (based on the value received from the neighbor Time To Live TLV during which no LLDP PDU was received from a neighbor), the information is deleted. To view the LLDP neighbors information: STEP 1Click Administration > Discovery - LLDP > LLDP Neighbors Information. This page contains the following fields: •Local Port—Number of the local port to which the neighbor is connected. •Chassis ID Subtype—Type of chassis ID (for example, MAC address). •Chassis ID—Identifier of the 802 LAN neighboring devices chassis. •Port ID Subtype—Type of the port identifier that is shown. •Port ID—Identifier of port. •System Name—Published name of the device. •Time to Live—Time interval (in seconds) after which the information for this neighbor is deleted. STEP 2Select a local port, and click Details.
Administration: Discovery Configuring LLDP Cisco Small Business 200, 300 and 500 Series Managed Switch Administration Guide (Internal Version) 109 8 The LLDP Neighbor Information page contains the following fields: Por t Details •Local Port—Port number. •MSAP Entry—Device Media Service Access Point (MSAP) entry number. Basic Details •Chassis ID Subtype—Type of chassis ID (for example, MAC address). •Chassis ID—Identifier of the 802 LAN neighboring device chassis. •Port ID Subtype—Type of the port identifier that is shown. •Port ID—Identifier of port. •Port Description—Information about the port, including manufacturer, product name and hardware/software version. •System Name—Name of system that is published. •System Description—Description of the network entity (in alpha-numeric format). This includes the system name and versions of the hardware, operating system, and networking software supported by the device. The value equals the sysDescr object. •Supported System Capabilities—Primary functions of the device. The capabilities are indicated by two octets. Bits 0 through 7 indicate Other, Repeater, Bridge, WLAN AP, Router, Telephone, DOCSIS cable device, and station, respectively. Bits 8 through 15 are reser ved. •Enabled System Capabilities—Primary enabled function(s) of the device. Management Address Table •Address Subtype—Managed address subtype; for example, MAC or IPv4. •Address—Managed address. •Interface Subtype—Port subtype. •Interface Number—Port number. MAC/PHY Details •Auto-Negotiation Supported—Port speed auto-negotiation support status. The possible values are True and False.
Administration: Discovery Configuring LLDP 110 Cisco Small Business 200, 300 and 500 Series Managed Switch Administration Guide (Internal Version) 8 •Auto-Negotiation Enabled—Port speed auto-negotiation active status. The possible values are True and False. •Auto-Negotiation Advertised Capabilities—Port speed auto-negotiation capabilities, for example, 1000BASE-T half duplex mode, 100BASE-TX full duplex mode. •Operational MAU Type—Medium Attachment Unit (MAU) type. The MAU performs physical layer functions, including digital data conversion from the Ethernet interfaces’ collision detection and bit injection into the network; for example, 100BASE-TX full duplex mode. 802.3 Power via MDI •MDI Power Support Port Class—Advertised power support port class. •PSE MDI Power Support—Indicates if MDI power is supported on the port. •PSE MDI Power State—Indicates if MDI power is enabled on the port. •PSE Power Pair Control Ability—Indicates if power pair control is supported on the port. •PSE Power Pair—Power pair control type supported on the port. •PSE Power Class—Advertised power class of the port. 802.3 Details •802.3 Maximum Frame Size—Advertised maximum frame size that is supported on the port. 802.3 Link Aggregation •Aggregation Capability—Indicates if the port can be aggregated. •Aggregation Status—Indicates if the port is currently aggregated. •Aggregation Port ID—Advertised aggregated port ID. 802.3 Energy Efficient Ethernet (EEE) •Remote Tx—Indicates the time (in micro seconds) that the transmitting link partner waits before it starts transmitting data after leaving Low Power Idle (LPI mode).
Administration: Discovery Configuring LLDP Cisco Small Business 200, 300 and 500 Series Managed Switch Administration Guide (Internal Version) 111 8 •Remote R x—Indicates the time (in micro seconds) that the receiving link partner requests that the transmitting link partner waits before transmission of data following Low Power Idle (LPI mode). •Local Tx Echo—Indicates the local link partner ’s reflection of the remote link partner ’s Tx value. •Local R x Echo—Indicates the local link partner ’s reflection of the remote link partner ’s Rx value. MED Details •Capabilities Supported—MED capabilities enabled on the port. •Current Capabilities—MED TLVs advertised by the port. •Device Class—LLDP-MED endpoint device class. The possible device classes are: -Endpoint Class 1—Indicates a generic endpoint class, offering basic LLDP services. -Endpoint Class 2—Indicates a media endpoint class, offering media streaming capabilities as well as all Class 1 features. -Endpoint Clas s 3—Indicates a communications device class, offering all Class 1 and Class 2 features plus location, 911, Layer 2 switch support and device information management capabilities. •PoE Device Type—Port PoE type, for example, powered. •PoE Power Source—Port’s power source. •PoE Power Priority—Port’s power priority. •PoE Power Value—Port’s power value. •Hardware Revision –Hardware version. •Firmware Revision—Firmware version. •Software Revision—Software version. •Serial Number—Device serial number. •Manufacturer Name—Device manufacturer name. •Model Name—Device model name. •Asset ID—Asset ID.
Administration: Discovery Configuring LLDP 112 Cisco Small Business 200, 300 and 500 Series Managed Switch Administration Guide (Internal Version) 8 802.1 VL AN and Protocol •PVID—Advertised port VLAN ID. PPVID Table •VID—Protocol VLAN ID. •Supported—Supported Port and Protocol VLAN IDs. •Enabled—Enabled Port and Protocol VLAN IDs. VL AN IDs •VID—Port and Protocol VLAN ID. •VLAN Names—Advertised VLAN names. Protocol IDs •Protocol ID Table—Advertised protocol IDs. Location Information Enter the following data structures in hexadecimal as described in section 10.2.4 of the ANSI-TIA-1057 standard: •Civic—Civic or street address. •Coordinates—Location map coordinates—latitude, longitude, and altitude. •ECS ELIN—Device’s Emergency Call Service (ECS) Emergency Location Identification Number (ELIN). •Unknown—Unknown location information. Net work Policies •Application Type—Network policy application type, for example, Voice. •VLAN ID—VLAN ID for which the network policy is defined. •VLAN Type—VLAN type, Tagged or Untagged, for which the network policy is defined. •User Priority—Network policy user priority. •DSCP—Network policy DSCP.
Administration: Discovery Configuring LLDP Cisco Small Business 200, 300 and 500 Series Managed Switch Administration Guide (Internal Version) 113 8 Accessing LLDP Statistics The LLDP Statistics page displays LLDP statistical information per port. To view the LLDP statistics: STEP 1Click Administration > Discovery - LLDP > LLDP Statistics. For each port, the fields are displayed: •Interface—Identifier of interface. •Tx Frames Total—Number of transmitted frames. •Rx Frames - To t a l—Number of received frames. - Discarded—Total number of received frames that were discarded. - Errors—Total number of received frames with errors. •Rx TLVs - Discarded—Total number of received TLVs that were discarded. - Unrecognized—Total number of received TLVs that were unrecognized. •Neighbors Information Deletion Count—Number of neighbor ageouts on the interface. STEP 2Click Refresh to view the latest statistics. LLDP Overloading LLDP adds information as LLDP and LLDP-MED TLVs into the LLDP packets. LLDP overload occurs when the total amount of information to be included in a LLDP packet exceed the maximum PDU size supported by an interface. The LLDP Overloading page displays the number of bytes of LLDP/LLDP-MED information, the number of available bytes for additional LLDP information, and the overloading status of every interface.
Administration: Discovery Configuring LLDP 114 Cisco Small Business 200, 300 and 500 Series Managed Switch Administration Guide (Internal Version) 8 To view LLDP overloading information: STEP 1Click Administration > Discovery - LLDP > LLDP Overloading. This page contains the following fields for each port: •Interface—Port identifier. •To t a l ( B y t e s )—Total number of bytes of LLDP information in each packet •Left to Send (Bytes)—Total number of available bytes left for additional LLDP information in each packet. •Status—Whether TLVs are being transmitted or if they are overloaded. STEP 2To view the overloading details for a port, select it and click Details. This page contains the following information for each TLV sent on the port: •LLDP Mandatory TLVs -Size (Bytes)—Total mandatory TLV byte size. -Status—If the mandatory TLV group is being transmitted, or if the TLV group was overloaded. •LLDP MED Capabilities -Size (Bytes)—Total LLDP MED capabilities packets byte size. -Status—If the LLDP MED capabilities packets were sent, or if they were overloaded. •LLDP MED Location - Size (Bytes)—Total LLDP MED location packets byte size. - Status—If the LLDP MED locations packets were sent, or if they were overloaded. •LLDP MED Network Policy - Size (Bytes)—Total LLDP MED network policies packets byte size. - Status—If the LLDP MED network policies packets were sent, or if they were overloaded. •LLDP MED Extended Power via MDI - Size (Bytes)—Total LLDP MED extended power via MDI packets byte size.
Administration: Discovery Configuring CDP Cisco Small Business 200, 300 and 500 Series Managed Switch Administration Guide (Internal Version) 115 8 -Status—If the LLDP MED extended power via MDI packets were sent, or if they were overloaded. •802.3 TLVs - Size (Bytes)—Total LLDP MED 802.3 TLVs packets byte size. - Status—If the LLDP MED 802.3 TLVs packets were sent, or if they were overloaded. •LLDP Optional TLVs - Size (Bytes)—Total LLDP MED optional TLVs packets byte size. - Status—If the LLDP MED optional TLVs packets were sent, or if they were overloaded. •LLDP MED Inventory - Size (Bytes)—Total LLDP MED inventory TLVs packets byte size. - Status—If the LLDP MED inventory packets were sent, or if they were overloaded. •To t a l ( B y t e s )—Total number of bytes of LLDP information in each packet •Left to Send (Bytes)—Total number of available bytes left for additional LLDP information in each packet. Configuring CDP This section describes how to configure CDP. It covers the following topics: •Setting CDP Properties •Editing CDP Interface Settings •Displaying CDP Local Information •Displaying CDP Neighbors Information •Viewing CDP Statistics
Administration: Discovery Configuring CDP 116 Cisco Small Business 200, 300 and 500 Series Managed Switch Administration Guide (Internal Version) 8 Setting CDP Properties Similar to LLDP, CDP (Cisco Discovery Protocol) is a link layer protocol for directly connected neighbors to advertise themselves and their capabilities to each other. Unlike LLDP, CDP is a Cisco proprietary protocol. CDP Configuration Workflow The followings is sample workflow in configuring CDP on the device. You can also find additional CDP configuration guidelines in the LLDP/CDP section. STEP 1Enter the CDP global parameters using the CDP Properties page STEP 2Configure CDP per interface using the Interface Setting page STEP 3If Auto Smartport is to detect the capabilities of CDP devices, enable CDP in the Smartport Properties page. See Identifying Smartport Type for a description of how CDP is used to identify devices for the Smartport feature. To enter CDP general parameters: STEP 1Click Administration > Discovery - CDP > Properties. STEP 2Enter the parameters. •CDP Status—Select to enable CDP on the device. •CDP Frames Handling—If CDP is not enabled, select the action to be taken if a packet that matches the selected criteria is received: - Bridging—Forward the packet based on the VLAN. - Filtering—Delete the packet. - Flooding—VLAN unaware flooding that forwards incoming CDP packets to all the ports excluding the ingress ports. •CDP Voice VLAN Advertisement—Select to enable the device to advertise the voice VLAN in CDP on all of the ports that are CDP enabled, and are member of the voice VLAN. The voice VLAN is configured in the Voice VLAN Properties page. •CDP Mandator y TLVs Validation—If selected, incoming CDP packets not containing the mandatory TLVs are discarded and the invalid error counter is incremented.
Administration: Discovery Configuring CDP Cisco Small Business 200, 300 and 500 Series Managed Switch Administration Guide (Internal Version) 117 8 •CDP Version—Select the version of CDP to use. •CDP Hold Time—Amount of time that CDP packets are held before the packets are discarded, measured in multiples of the TLV Advertise Interval. For example, if the TLV Advertise Interval is 30 seconds, and the Hold Multiplier is 4, then the LLDP packets are discarded after 120 seconds. The following options are possible: -Use Default—Use the default time (180 seconds) -User Defined—Enter the time in seconds. •CDP Transmission Rate—The rate in seconds at which CDP advertisement updates are sent. The following options are possible: -Use Default—Use the default rate (60 seconds) -User Defined—Enter the rate in seconds. •Device ID Format—Select the format of the device ID (MAC address or serial number). The following options are possible: -MAC Address—Use the MAC address of the device as the device ID. -Serial Number—Use the serial number of the device as the device ID. -Host Name—Use the host name of the device as the device ID. •Source Interface—IP address to be used in the TLV of the frames. The following options are possible: -Use Default—Use the IP address of the outgoing interface. -User Defined—Use the IP address of the interface (in the Interface field) in the address TLV. •Interface—IF User Defined was selected for Source Interface, select the interface. •Syslog Voice VLAN Mismatch—Check to send a SYSLOG message when a voice VLAN mismatch is detected. This means that the voice VLAN information in the incoming frame does not match what the local device is advertising. •Syslog Native VLAN Mismatch—Check to send a SYSLOG message when a native VLAN mismatch is detected. This means that the native VLAN information in the incoming frame does not match what the local device is advertising.