Nortel 8100 用户指南

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Chapter 5 Configuring and graphing chassis information
197
Configuring Network Management
 
InAddrErrors
The number of input datagrams discarded because the IP address 
in their IP header’s destination field was not a valid address to 
be received at this entity. This count includes invalid addresses 
(for example, 0.0.0.0) and addresses of unsupported Classes 
(for example, Class E). For entities that are not IP Gateways and 
therefore do not forward datagrams, this counter includes 
datagrams discarded because the destination address was not 
a local address.
ForwDatagrams
The number of input datagrams for which this entity was not their 
final IP destination, as a result of which an attempt was made to find 
a route to forward them to that final destination. In entities that do 
not act as IP Gateways, this counter will include only those packets 
that were Source-Routed by way of this entity and had successful 
Source-Route option processing.
InUnknownProtos
The number of locally addressed datagrams received successfully 
but discarded because of an unknown or unsupported protocol.
InDiscards
The number of input IP datagrams for which no problems were 
encountered to prevent their continued processing but that were 
discarded (for example, for lack of buffer space). Note that this 
counter does not include any datagrams discarded while awaiting 
reassembly.
InDelivers
The total number of input datagrams successfully delivered to IP 
user-protocols (including ICMP).
OutRequests
The total number of IP datagrams that local IP user-protocols 
(including ICMP) supplied to IP in requests for transmission. 
Note that this counter does not include any datagrams counted in 
ipForwDatagrams.
OutDiscards
The number of output IP datagrams for which no problem was 
encountered to prevent their transmission to their destination, but 
that were discarded (for example, for lack of buffer space). Note 
that this counter would include datagrams counted in 
ipForwDatagrams if any such packets met this (discretionary) 
discard criterion.
OutNoRoutes
The number of IP datagrams discarded because no route could be 
found to transmit them to their destination. Note that this counter 
includes any packets counted in ipForwDatagrams that meet this 
no-route criterion. This counter includes any datagrams a host 
cannot route because all of its default gateways are down.
FragOKs
The number of IP datagrams that have been successfully 
fragmented at this entity.
FragFails
The number of IP datagrams that have been discarded because 
they needed to be fragmented at this entity but could not be, for 
example, because their Don’t Fragment flag was set.
Table 61   
IP tab fields (continued)
Field
Description