Configuring IP Routing (Layer 3)

Table 7-11.IP Routing Global Statistics (Continued)

 

 

Statistic

Defines the...

 

 

IP In Address Errors

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.

 

 

IP Forward Datagrams

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

 

which do not act as IP Gateways, this counter will include only

 

those packets which were Source-Routed via this entity, and the

 

Source-Route option processing was successful.

 

Note: This is routed by the supervisor in the software.

 

 

IP In Unknown Protocols

Number of input datagrams discarded due to errors in their IP

 

headers. Such errors may include bad checksums, version number

 

mismatches, other format errors, time-to-live exceeded, errors

 

discovered in processing their IP options.

 

 

IP In Discards

Number of input IP datagrams for which no problems were

 

encountered to prevent their continued processing, but which

 

were discarded (for example, for lack of buffer space).

 

Note: This counter does not include any datagrams discarded

 

while awaiting re-assembly.

 

 

IP In Delivers

Total number of input datagrams successfully delivered to IP

 

user-protocols (including Internet Control Message Protocol

 

(ICMP)).

 

 

IP Out Requests

Total number of IP datagrams that local IP user-protocols

 

(including ICMP) supplied to IP in requests for transmission.

 

Note: This counter does not include any datagrams counted in

 

ipForwDatagrams.

 

 

IP Out Discards

Number of output IP datagrams for which no problem was

 

encountered to prevent their transmission to their destination, but

 

were discarded (for example, for lack of buffer space). Note that

 

this counter includes datagrams counted in ipForwDatagrams if

 

any such packets met this (discretionary) discard criterion.

 

 

IP Out No Routes

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 which meet this

 

`no-route' criterion. Note that this includes any Datagrams which a

 

host cannot route because all of its default gateways are down.

 

 

IP Reassembly Timeout

Maximum number of seconds that received fragments are held

 

while they are awaiting reassembly at this entity.

 

 

IP Reassembly Required

Number of IP fragments received that need to be reassembled.

 

 

7-22

Cajun P550/P220 Switch Operation Guide