IcmpV6Statistics.TimeExceededMessagesSent 属性
定义
获取发送的 Internet 控制消息协议版本 6 (ICMPv6) 超时消息数。Gets the number of Internet Control Message Protocol version 6 (ICMPv6) Time Exceeded messages sent.
public:
abstract property long TimeExceededMessagesSent { long get(); };
public abstract long TimeExceededMessagesSent { get; }
member this.TimeExceededMessagesSent : int64
Public MustOverride ReadOnly Property TimeExceededMessagesSent As Long
属性值
Int64 值,指定已发送的“ICMP 超时”消息的总数。An Int64 value that specifies the total number of ICMP Time Exceeded messages sent.
示例
下面的示例显示此属性的值。The following example displays the value of this property.
void ShowIcmpV6TimeExceededData()
{
IPGlobalProperties ^ properties = IPGlobalProperties::GetIPGlobalProperties();
IcmpV6Statistics ^ statistics = properties->GetIcmpV6Statistics();
Console::WriteLine( " TimeExceeded ........................ Sent: {0,-10} Received: {1,-10}",
statistics->TimeExceededMessagesSent,
statistics->TimeExceededMessagesReceived );
}
public static void ShowIcmpV6TimeExceededData ()
{
IPGlobalProperties properties = IPGlobalProperties.GetIPGlobalProperties();
IcmpV6Statistics statistics = properties.GetIcmpV6Statistics();
Console.WriteLine (" TimeExceeded ........................ Sent: {0,-10} Received: {1,-10}",
statistics.TimeExceededMessagesSent, statistics.TimeExceededMessagesReceived);
}
Public Shared Sub ShowIcmpV6TimeExceededData()
Dim properties As IPGlobalProperties = IPGlobalProperties.GetIPGlobalProperties()
Dim statistics As IcmpV6Statistics = properties.GetIcmpV6Statistics()
Console.WriteLine(" TimeExceeded ........................ Sent: {0,-10} Received: {1,-10}", statistics.TimeExceededMessagesSent, statistics.TimeExceededMessagesReceived)
End Sub
注解
数据包的跃点限制决定在被丢弃之前可以转发多少次。A packet's Hop Limit determines how many times it can be forwarded before it is discarded. 每次转发数据包时,它的跃点限制值将减少1。Each time a packet is forwarded, its Hop Limit value is decremented by one. 当跃点限制达到0时,或者当路由器接收到其跃点限制设置为零的数据包时,数据包将被丢弃,数据包的源将收到一条超时消息,指示初始跃点限制太小或数据包被路由循环。When the Hop Limit reaches zero or when a router receives a packet with its Hop Limit set to zero, the packet is discarded and the source of the packet receives a Time Exceeded message indicating that the initial Hop Limit was too small or that the packet was caught in a routing loop.