Viewing Chassis IP Statistics
View chassis IP statistics to monitor network performance.
Procedure
- In the Device Physical View, select the chassis.
- In the navigation pane, expand the folders.
- Click Chassis.
- Click the IP tab.
IP Field Descriptions
The following table describes parameters on the IP tab.
|
Name |
Description |
|---|---|
|
InReceives |
The number of input datagrams received from interfaces, including those received in error. |
|
InHdrErrors |
The number of input datagrams discarded due to errors in the IP headers, including bad checksums, version number mismatch, other format errors, time-to-live exceeded, errors discovered in processing their IP options. |
|
InAddrErrors |
The number of input datagrams discarded because the IP address in the IP header 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 includes 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). This counter does not include any datagrams discarded while awaiting reassembly. |
|
InDelivers |
The number of input datagrams successfully delivered to IP user-protocols (including ICMP). |
|
OutRequests |
The number of IP datagrams that local IP user-protocols (including ICMP) supplied to IP in requests for transmission. 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). This counter includes datagrams counted in ipForwDatagrams if any such packets met this (discretionary) discard criterion. |
|
OutNoRoutes |
The number of IP datagrams discarded because no route was found to transmit them to their destination. 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 default gateways are down. |
|
FragOKs |
The number of IP datagrams that were successfully fragmented at this entity. |
|
FragFails |
The number of IP datagrams that were discarded because they needed to be fragmented at this entity but can not be, for example, because the Don't Fragment flags were set. |
|
FragCreates |
The number of IP datagram fragments that were generated as a result of fragmentation at this entity. |
|
ReasmReqds |
The number of IP fragments received that needed to be reassembled at this entity. |
|
ReasmOKs |
The number of IP datagrams successfully reassembled. |
|
ReasmFails |
The number of failures detected by the IP reassembly algorithm (for whatever reason: timed out, errors, and so on). This number is not necessarily a count of discarded IP fragments because some algorithms (notably the algorithm in RFC 815) can lose track of the number of fragments by combining them as they are received. |