Microsoft Exchange Performance Counters

Microsoft Exchange Virtualization HyperV Network counters

Counter Name	Description
Hyper-V Virtual Network Adapter\Bytes/sec
Hyper-V Virtual Network Adapter\Packets/sec	This counter represents the total number of packets per second traversing the virtual switch.
Hyper-V Virtual Switch\Bytes/sec	This counter represents the total number of bytes that have traversed the network adapter.
Hyper-V Virtual Switch\Packets/sec	This counter represents the total number of bytes received per second by the network adapter.
Network Interface(*)\Bytes Total/sec	Indicates the rate at which the network adapter is processing data bytes. This counter includes all application and file data, in addition to protocol information such as packet headers.
Network Interface(*)\Packets Outbound Errors	Indicates the number of outbound packets that couldn't be transmitted because of errors.
TCPv4\Connection Failures	Shows the number of times TCP connections have made a direct transition to the CLOSED state from the SYN-SENT state or the SYN-RCVD state, plus the number of times TCP connections have made a direct transition to the LISTEN state from the SYN-RCVD state.
TCPv4\Connections Reset	Shows the number of times TCP connections have made a direct transition to the CLOSED state from either the ESTABLISHED state or the CLOSE-WAIT state.
TCPv6\Connection Failures	Shows the number of times TCP connections have made a direct transition to the CLOSED state from the SYN-SENT state or the SYN-RCVD state, plus the number of times TCP connections have made a direct transition to the LISTEN state from the SYN-RCVD state.
TCPv6\Connections Reset	Shows the number of times TCP connections have made a direct transition to the CLOSED state from either the ESTABLISHED state or the CLOSE-WAIT state.