Zhone 2004 ユーザーガイド
5-8
2 0 0 0 - A 2 - G B 2 2 - 0 0
packets delivered to upper
layer
layer
No. of incoming IP packets delivered to upper layer/
Layer 4 or higher (such as ICMP, IGCMP, PIM, TCP
and UDP packets)
Layer 4 or higher (such as ICMP, IGCMP, PIM, TCP
and UDP packets)
packets forwarded
No. of incoming IP packets forwarded to other
route/interface
route/interface
discarded for lack of
resources
resources
Discarded received packets due to lack of resources:
kernel memory, packet buffers etc.
kernel memory, packet buffers etc.
discarded due to internal
errors
errors
Discarded received packets due to internal software
errors.
errors.
discarded for other reasons:
Discarded received packets due to other reasons listed
in the following:
in the following:
- with header errors
Bad IP header format
- with an illegal source
Illegal Source IP address in the IP header
- with an illegal destination
Illegal Destination IP address in the IP header
- bad versions
Version field value in IP header is incorrect.
- bad checksums
Value of Checksum field in IP header is incorrect.
- with headers too small
Size of the IP header is less than 20 bytes.
- packets smaller than header Size of IP header is larger than packet size.
- packets larger than frame
IP packet size is larger than internal packet buffer.
- with unrecognized protocol Value of Protocol Type field in IP header is
unrecognized.
- with zero TTL
Value of TTL in the IP header reaches zero.
fragments received
Value of Fragment field in the IP header is on.
fragmented packets
reassembled
reassembled
No. of reassembled fragmented packets.
fragments discarded
No. of discarded fragmented packets.
Sent Packet Information
packets sent
Total IP packet sent.
discarded for lack of
resources
resources
Total transmitted IP packet discarded due to lack of
resources: kernel memory, packet buffer, etc.
resources: kernel memory, packet buffer, etc.
discarded due to internal
errors
errors
Total transmitted IP packet being discard due to
internal errors.
internal errors.
destinations found
unreachable
unreachable
Destination IP address could not be reached for
outgoing packet.
outgoing packet.
fragments sent
Total fragmented sent.
packets fragmented
Total outgoing IP packet being fragmented.
fragmentation failures
Total fragmentation failures for outgoing IP packets.
Parameter
Description