Statistics統計

The Port Statistics page displays a summary for all types of port traffic statistics.

L2 Statistics

Spanning Tree　

Items	Descriptions
Port	Displays the port for which statistics are displayed.
RX BPDU	Displays the number of all BPDU received on the port.このポートは受信したBPDUの数を表示します。
TX BPDU	Displays the number of BPDU transmitted on the port.　このポートは送信したBPDUの数を表示します。
Invalid BPDU	Displays the number of Invalid BPDU on the port.　　このポートにある無効なBPDUの数を表示します。

GVRP

Defined in the IEEE 802.1Q standard, Generic Attribute Registration Protocol (GARP) VLAN Registration Protocol (GVRP) is an application for the control of VLANs.

IEEE 802.1Q 準拠 VLANにより、GVRP はVLANをコントロールするためのアプリケーションです。

Items	Descriptions
Port	Displays the port for which statistics are displayed.
RxJoinEmpty	Displays the number of GVRP Join Empty event packets received on the port.
RxLeaveIn	Displays the number of GVRP Leave In event packets received on the port.
RxLeaveAll	Displays the number of GVRP Leave All event packets received on the port.
RxLeaveEmpty	Displays the number of GVRP Leave Empty event packets received on the port.
RxEmpty	Displays the number of GVRP Empty event packets received on the port.
RxTotal	Displays the number of total GVRP packets received on the port.
Drop	Displays the number of drop traffics on the port.
TxJoinEmpty	Displays the number of GVRP Join Empty event packets transmitted on the port.
TxJoinIn	Displays the number of GVRP Join In event packets transmitted on the port.
TxLeaveIn	Displays the number of GVRP Leave In event packets transmitted on the port.
TxLeaveAll	Displays the number of GVRP Leave All event packets transmitted on the port.
TxLeaveEmpty	Displays the number of GVRP Leave Empty event packets transmitted on the port
TxEmpty	Displays the number of GVRP Empty event packets transmitted on the port
TxTotal	Displays the number of Total GVRP packets transmitted on the port

L3 Statistics

DHCP Snooping

DHCP Snooping is a layer 2 security mechanism incorporated into the switch, preventing rogue DHCP servers from offering unauthorized IP addresses to DHCP clients. DHCPスヌーピングは、レイヤ2スイッチのセキュリティメカニズムで、不正なDHCPサーバからDHCPクライアントへ不正なIPアドレスの通信を防止します。

Upon DHCP snooping enabled on a VLAN, the switch will examine DHCP messages sent from untrusted hosts with the VLAN and extracts their IP addresses/lease information to build and maintain the DHCP snooping database. After verification by this database, verified hosts can be granted access to the network.　　VLANにDHCPスヌーピングが有効になると、スイッチは信頼できないホストからDHCPメッセージを送信し、IPアドレス情報を解析し、DHCPスヌーピングデータベースを作成してメンテナンスします。このデータベースはに検証されると、検証されたホストはネットワークに接続することになります。

Items	Descriptions
VLAN	Displays the VLAN for which statistics are displayed.
RXDicovers	Displays the number of DHCP Discover packets received on the port.
RXRequests	Displays the number of DHCP Request packets received on the port.
RXReleases	Displays the number of DHCP Release packets received on the port.
RXDeclines	Displays the number of DHCP Decline packets received on the port.
RXInforms	Displays the number of DHCP Inform packets received on the port.
TXOffers	Displays the number of DHCP Offer packets transmitted on port.
TXAcks	Displays the number of DHCP ACK packets transmitted on the port.
TXNaks	Displays the number of DHCP Nak packets transmitted on the port.
MACDiscard	Displays the number of MAC Discard on the port.
ServerDiscard	Displays the number of Server Discard on the port.
OptionDiscard	Displays the number of Option Discard on the port.
TotalDiscard	Displays the total number of Discard on the port.

802.1X Security

Items	Descriptions
Port	Displays the port for which statistics are displayed.
TxReqId	Displays the number of all packets received on the port.
TxReq	Displays the number of unicast packets received on the port.
TxTotal	Displays the number of unicast packets received on the port.
RxStart	Displays the number of received packets discarded on the port.
RxLogoff	Displays the number of all packets transmitted on the port.
RxRespId	Displays the number of unicast packets transmitted on port.
RxResp	Displays the number of unicast packets transmitted on the port.
RxInvalid	Displays the number of transmitted packets discarded on the port.
RxlenErr	Displays the number of multicast packets received on the port.
RxTotal	Displays the number of broadcast packets received on the port.
RxVersion	Displays the number of multicast packets transmitted on the port.
LastRxSrcMac	Displays the number of broadcast packets transmitted on the port.

Port

Items	Descriptions
Port	Displays the port for which statistics are displayed.
RXByte	Displays the number of all packets received on the port.
RXUcast	Displays the number of unicast packets received on the port.
RXNUcast	Displays the number of unicast packets received on the port.
RXDiscard	Displays the number of received packets discarded on the port.
TXByte	Displays the number of all packets transmitted on the port.
TXUcast	Displays the number of unicast packets transmitted on port.
TXNUcast	Displays the number of unicast packets transmitted on the port.
TXDiscard	Displays the number of transmitted packets discarded on the port.
RXMcast	Displays the number of multicast packets received on the port.
RXBcast	Displays the number of broadcast packets received on the port.
TXMcast	Displays the number of multicast packets transmitted on the port.
TXBcast	Displays the number of broadcast packets transmitted on the port.

RMON

Items	Descriptions
ID	Displays entry index.
Data Source	Displays the corresponding switch port.
Drop Events	Displays the number of dropped events that have occurred on the port.
Octets	Displays the number of octets received on the port.
Pkts	Displays the number of packets received on the port.
Broadcast Pkts	Displays the number of good broadcast packets received on the port. This number does not include Multicast packets.
Multicast Pkts	Displays the number of good Multicast packets received on the port.
CRC Align Errors	Displays the number of CRC and Align errors that have occurred on the port
Fragments	Displays the number of fragments received on the port.